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4- Determine whether the variable is discrete or continuous, and determine its level of measurement.
The number of residents in a city
Discrete, interval level
Continuous, interval level
Discrete, ratio level
Continuous, ratio level
q2)A student answers randomly three True (T) or False (F) questions.
(a) Make the list of all possible outcomes (sample space).
(b) Make the list of outcomes corresponding to the following event: The student answered True at least two times
(c) Evaluate the probability that the student answered True at least two times

Answers

Answer 1

The probability is 4/8 = 1/2. The probability that the student answered True at least two times is 1/2.

The number of residents in a city is a discrete variable because it is a countable number of people. The level of measurement is a ratio level because there is a true zero point (no residents in a city) and the difference between values is meaningful. Therefore, the correct answer is discrete, ratio level.

The sample space for the three True (T) or False (F) questions is: {TTT, TTF, TFT, FTT, FTF, FFT, TFF, FFF}

The outcomes corresponding to the event "The student answered True at least two times" are: {TTT, TTF, TFT, FTT}

To evaluate the probability of the event "The student answered True at least two times", we need to divide the number of favorable outcomes by the total number of possible outcomes. The number of favorable outcomes is 4 (TTT, TTF, TFT, FTT) and the total number of possible outcomes is 8 (TTT, TTF, TFT, FTT, FTF, FFT, TFF, FFF). Therefore, the probability is 4/8 = 1/2. The probability that the student answered True at least two times is 1/2.

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Related Questions

a Theorem : The edge of regression of the polar developable of a space cuive is the locus of the centre of spherical curvatures. D.

Answers

The theorem you mentioned is known as Meusnier's theorem. The edge of regression of the polar developable of a space curve is the locus of the center of spherical curvatures.

It states that the locus of the center of spherical curvature of a space curve is the edge of regression of the polar developable of the curve. In other words, the center of curvature of a curve at any point lies on the edge of regression of the polar developable curve.

This theorem is used to describe the curvature of a curve in three-dimensional space. It is named after the French mathematician Jean Baptiste Meusnier, who first discovered it in 1776.

In mathematical terms, the theorem can be expressed as follows:

Let C be a space curve with curvature k and torsion T. Let P be a point on C and N be the normal vector at P. Then, the center of curvature of C at P is given by:

O = P + (1/k)N

The edge of regression of the polar developable of C is the locus of the point O as P varies along C.

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find the volume of the rectangular pyramid

Answers

Answer:

Refer to pic...........

A toy rocket is launched from the top of a building 128 feet tall at an initial velocity of 236 feet per second. ​a) Give the function that describes the height
A toy rocket is launched from the top of a building 128 feet tall at an initial velocity of 236 feet per second.
a) Give the function that describes the height of the rocket in terms of time t.
b) Determine the time at which the rocket reaches its maximum height, and the maximum height in feet.
c) For what time interval will the rocket be more than 845 feet above ground level?
d) After how many seconds will it hit the ground?

Answers

The function that describes the height of the rocket in terms of time t is h(t) = -16t² + 236t + 128

The maximum height is 962.125 feet.

The rocket reaches its maximum height at 14.75 seconds.

The rocket will hit the ground after 14.88 seconds.

a) The function that describes the height of the rocket in terms of time t is given by:
h(t) = -16t² + 236t + 128

b) To determine the time at which the rocket reaches its maximum height, we need to find the vertex of the parabola. The x-coordinate of the vertex is given by:
t = -b/2a = -236/(2*-16) = 7.375 seconds

The maximum height is then found by plugging this value of t back into the function:
h(7.375) = -16(7.375)² + 236(7.375) + 128 = 962.125 feet

c) To find the time interval during which the rocket is more than 845 feet above ground level, we need to solve the inequality:
-16t² + 236t + 128 > 845

Rearranging and factoring gives:
-16t² + 236t - 717 < 0
(4t - 59)(-4t + 12) < 0

The solutions to this inequality are t = 59/4 and t = 12/4. Therefore, the rocket will be more than 845 feet above ground level for the time interval 12/4 < t < 59/4, or 3 < t < 14.75 seconds.

d) To find when the rocket will hit the ground, we need to solve the equation:
-16t² + 236t + 128 = 0

Using the quadratic formula gives:
t = (-236 ± √(236² - 4(-16)(128)))/(2(-16))
t = (-236 ± 244.28)/(-32)

The two solutions are t = 14.88 seconds and t = -0.51 seconds. Since time cannot be negative, the rocket will hit the ground after 14.88 seconds.

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Find the measurements of X
pt. 2

Answers

The measure of the angle x is 50 degrees

How to determine the angles

In order to determine the value measure of the angle at the center, we need to know that;

The angle subtended by an arc at the center is said to be twice the angle subtended at the circumference.

In other words, we can say that the angle at the center is double the angle at the circumference.

This is represented as;

x = 2x

Such that '2x' is the angle at the circumference

From the image shown, we have that;

x = 2(25)

multiply the value

x = 50 degrees

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If 5 dogs share equally a bag of dog treats, each dog gets 24 treats.
Suppose 8 dogs share equally the bag of treats. How many treats
does each dog get? (EXPLAIN)

Answers

This is a two-part question in which we must identify the value of one part to determine the other part’s value. Since we already know each dog gets 24 treats if shared equally by 5 dogs, we can set up an equation:

5 • 24 = 120

If 5 dogs equally share the bag of dog treats, there is a total of 120 treats. We now can apply this to the scenario of 8 dogs distributing:

120 / 8 = 15

If 8 dogs share equally the bag of treats, each dog will receive 15 treats.

Mrs. Andretti is having new drapes made for her living room. The cost of the fabric is $15 per yard. The fee to make and hang the drapes is $250. She uses the expression 15x + 250 to calculate the total cost of the drapes. Mrs. Andretti states that x represents the total cost of the fabric. Is she correct? Responses Yes, x represents the total cost of the fabric. Yes, x represents the total cost of the fabric. No, x represents the total cost of the drapes. No, x represents the total cost of the drapes. No, x represents the total yards of fabric used. No, x represents the total yards of fabric used. No, x represents the total amount of fabric she already has.

Answers

Mrs. Andretti is right, of course. In the equation 15x + 250, x stands for the fabric's overall expense.

what is expression ?

An expression in mathematics is a collection of numbers, variables, and operations that can be evaluated to create a value, including addition, subtraction, multiplication, and division. Expressions can be straightforward—like 3 + 4 or 5x—or complex—involving numerous factors and operations. From basic arithmetic to intricate functions and equations, a broad range of mathematical concepts can be represented by expressions.

given

The fabric's overall cost is indicated by the value x.

No, x stands for the drapes' total expense.

No, x is the overall number of yards of fabric used.

Mrs. Andretti is right, of course. In the equation 15x + 250, x stands for the fabric's overall expense.

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A grocer wants to create a 40 pound mixture of almonds and cashews that will sell for $12.50 per pound. The almonds sell for $10 per pound and the cashews sell for $14 per pound. How many pounds of each should the grocer use?

Answers

The grocer should use 15 pounds of almonds and 25 pounds of cashews to create a 40 pound mixture that will sell for $12.50 per pound.

To create a 40 pound mixture of almonds and cashews that will sell for $12.50 per pound, the grocer should use a combination of both almonds and cashews that will give him the desired price. We can use a system of equations to solve for the amount of each ingredient the grocer should use. Let x be the amount of almonds and y be the amount of cashews.

The first equation is the total weight equation: x + y = 40The second equation is the total cost equation: 10x + 14y = 12.50(40)

Solving for x in the first equation gives us: x = 40 - y

Substituting this value of x into the second equation gives us: 10(40 - y) + 14y = 12.50(40)

Simplifying and solving for y gives us: 4y = 100 -> y = 25

Substituting this value of y back into the first equation gives us: x + 25 = 40 -> x = 15

Therefore, the grocer should use 15 pounds of almonds and 25 pounds of cashews to create a 40 pound mixture that will sell for $12.50 per pound.

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$18,000 is deposited for 9 years in an account earning 4% interest. (Round your answers to two decimal places.)
(a) Calculate the future value of the investment if interest is compounded semiannually.
$ _____
(b) Calculate the future value if interest is compounded quarterly.
$ _____
(c) How much greater is the future value of the investment when the interest is compounded quarterly?
$ _____

Answers

(a)  The future value of the investment if interest is compounded semiannually is $24,840.28.

(b) The future value of the investment if interest is compounded quarterly is $25,025.68.

(c) The future value of the investment is $185.40 greater when the interest is compounded quarterly.

The future value of an investment can be calculated using the formula FV = P(1 + r/n)^(nt), where FV is the future value, P is the principal amount deposited, r is the annual interest rate, n is the number of times interest is compounded per year, and t is the number of years the investment is held.



If the interest is compounded semiannually, then n = 2. Plugging in the given values, we get:



FV = 18000(1 + 0.04/2)^(2*9)

FV = 18000(1.02)^18

FV = $24,840.28



So the future value of the investment if interest is compounded semiannually is $24,840.28.



If the interest is compounded quarterly, then n = 4. Plugging in the given values, we get:



FV = 18000(1 + 0.04/4)^(4*9)

FV = 18000(1.01)^36

FV = $25,025.68



So the future value of the investment if interest is compounded quarterly is $25,025.68.



To find out how much greater the future value of the investment is when the interest is compounded quarterly, we can subtract the future value when interest is compounded semiannually from the future value when interest is compounded quarterly:



$25,025.68 - $24,840.28 = $185.40



So the future value of the investment is $185.40 greater when the interest is compounded quarterly.

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(a) Show the following o-fields are equal to each other: i. B= o({(-20,x); r < R}); ii. B2 = o({(-0,2); 2 € R}); [Note either of them can be taken as the definition of the Borel sigma field on the real line.]

Answers

The following o-fields are equal to each other because they both represent the Borel sigma field on the real line:
i. B= o({(-20,x); r < R})
ii. B2 = o({(-0,2); 2 € R})

Note that the Borel sigma field on the real line is the smallest sigma field containing all the open intervals on the real line. This means that any set that can be constructed from countable unions, intersections, and complements of open intervals is in the Borel sigma field.

In the first o-field, B= o({(-20,x); r < R}), the set {(-20,x); r < R} is an open interval on the real line, so it is in the Borel sigma field. Similarly, in the second o-field, B2 = o({(-0,2); 2 € R}), the set {(-0,2); 2 € R} is also an open interval on the real line, so it is also in the Borel sigma field.

Since both o-fields contain sets that are in the Borel sigma field, they are both equal to the Borel sigma field on the real line. Therefore, B= o({(-20,x); r < R}) = B2 = o({(-0,2); 2 € R}).

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Perform the following conversions. With math explanation
300 ft = m
130 cm = in
0.5hp = W
350psi = Pa
10 ????????/????????3 = ????????/m3
350 W = ????T????/ℎ
10,000 cal = ????

Answers

a)91.44 m

b)51.18 in

c)372.85 W

d)2383186.955 Pa

e)10000 ????????/m3

f)0.4667 T????/ℎ

g)41840 J

300 ft = m

1 ft = 0.3048 m, so 300 ft = 300 * 0.3048 m = 91.44 m



130 cm = in

1 in = 2.54 cm, so 130 cm = 130/2.54 in = 51.18 in



0.5hp = W

1 hp = 745.7 W, so 0.5 hp = 0.5 * 745.7 W = 372.85 W



350psi = Pa

1 psi = 6894.757 Pa, so 350 psi = 350 * 6894.757 Pa = 2383186.955 Pa



10 ????????/????????3 = ????????/m3

1 ????????/????????3 = 1000 ????????/m3, so 10 ????????/????????3 = 10 * 1000 ????????/m3 = 10000 ????????/m3



350 W = ????T????/ℎ

1 W = 0.00134 T????/ℎ, so 350 W = 350 * 0.00134 T????/ℎ = 0.4667 T????/ℎ



10,000 cal = ????

1 cal = 4.184 J, so 10,000 cal = 10,000 * 4.184 J = 41840 J

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Olaf lives in a dorm in a tiny room that he shares with three others. He wants to live off campus next year with his friends, but he needs more money from his parents to finance the move. He decides to build a scale model of his dorm room so that when he goes home for break, he can show his parents the cramped conditions he lives in. He decides to let 1 inch represent 30 inches of the actual lengths in the room. His desk is a right rectangular prism 40 inches high, 36 inches long, and 20 inches wide. He decides that his scaled desk should be 1 1/3 inches high, but a roommate says it should be 10 inches high. Who is right and why? What are the other dimensions of the scaled desk?

Answers

The roommate is wrong. The scaled desk should be 1 1/3 inches high, as per Olaf's initial scaling of 1 inch representing 30 inches of actual length in the room. The other dimensions of the scaled desk would be 12 inches long and 6 2/3 inches wide.

When Olaf decided to let 1 inch represent 30 inches of actual length in the room, he created a scale factor of 1:30. This means that for every inch in the scale model, there are 30 inches in the actual room. Using this scale factor, the scaled desk height should be 40/30 = 4/3 inches. Therefore, the roommate's suggestion of 10 inches high is incorrect.

To find the other dimensions of the scaled desk, we need to apply the same scale factor of 1:30. The scaled length would be 36/30 = 12 inches, and the scaled width would be 20/30 = 2/3 inches. However, it's easier to work with whole numbers, so we can multiply both dimensions by 10 to get 120 inches long and 6 2/3 inches wide, which is equivalent to 12 inches long and 2/3 inches wide in the scaled model.

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3. Let \( A=\left[\begin{array}{cc}a & b \\ a & b\end{array}\right] \), where \( a \neq 0 \). Find rank \( A \). Also, find a basis of the null space and a basis of the row space of \( A \); and show

Answers

rank(A) = 1

Given that A = $\left[\begin{array}{cc}a & b \\ a & b\end{array}\right]$, where $a \neq 0$.Let's find the rank of A:Rank(A) = number of leading 1's in the row echelon form of A.= $\left[\begin{array}{cc}a & b \\ a & b\end{array}\right]$=> $\left[\begin{array}{cc}a & b \\ 0 & 0\end{array}\right]$There are two leading 1's in row 1. Hence, rank(A) = 1.Now, let's find the basis of the null space of A:Null space of A is the set of all solutions to the equation $Ax=0$.So, $Ax$ = $\left[\begin{array}{cc}a & b \\ a & b\end{array}\right]$ $\left[\begin{array}{c}x \\ y\end{array}\right]$= $\left[\begin{array}{c}ax+by \\ ax+by\end{array}\right]$= $\left[\begin{array}{c}(a+b)x \\ (a+b)y\end{array}\right]$= $\left[\begin{array}{c}0 \\ 0\end{array}\right]$=> (a + b) x = 0 and (a + b) y = 0=> $x = \frac{-b}{a}y$=> $\left[\begin{array}{c}x \\ y\end{array}\right]$= $\left[\begin{array}{c}\frac{-b}{a}y \\ y\end{array}\right]$= $y \left[\begin{array}{c}\frac{-b}{a} \\ 1\end{array}\right]$=> Null space of A = $\{y \left[\begin{array}{c}\frac{-b}{a} \\ 1\end{array}\right] | y \in R \}$Let's take a = 1, b = 2. So, the null space of A = $\{y \left[\begin{array}{c}-2 \\ 1\end{array}\right] | y \in R \}$Therefore, the basis of the null space of A = $\left[\begin{array}{c}-2 \\ 1\end{array}\right]$Now, let's find the basis of the row space of A:Row space of A is the span of the rows of A.=> Row space of A = span $\left\{\left[\begin{array}{cc}a & b\end{array}\right]\right\}$Since rank(A) = 1, there is only 1 non-zero row. Therefore, a basis of the row space of A is $\left\{\left[\begin{array}{cc}a & b\end{array}\right]\right\}$.

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I’ve tried it so many times and can’t get the answer

Answers

Answer:

  (364.0, 236.4)

Step-by-step explanation:

You want the vector 434∠33° written as an ordered pair.

Ordered pair

The "ordered pair" representation of a vector can take different forms. we're not sure the form your curriculum materials are asking for, so we'll show it a couple of ways.

(magnitude; direction) = (434; 33°) or maybe (434, 33)

(x, y) = 434·(cos(33°), sin(33°) ≈ (364.0, 236.4)

__

Additional comment

We like the form used in the problem statement above (434∠33°) for vectors expressed in polar form. For vectors expressed in rectangular form, many calculators work nicely with a complex number representation (364 +236.4i).

The ordered pair using a semicolon (;) separator is written that way to distinguish it from the (x, y) ordered pair. That form is used by some geometry software. A calculator may use [434, 33] or [364, 236.4] (for example), leaving it up to the user to remember what the pair represents.

Some authors use a combination of complex and polar representations like this:

  A(cos(B) +i·sin(B)) = A·cis(B)

In this, the "cis" is a reminder of the "cosine + i·sine" complex number representation. It is also a longer way to write A∠B.

The second attachment shows our preferred calculator using our preferred vector notations. YMMV

→ Be sure your calculator is in "degrees" mode.

For a function f(x)f(x) and a particular input value x=ax=a, then we may write the difference quotient as
f(a+h)−f(a)/h
where h≠0
Now, let f(x)=x^3−15x and consider the input value a=3. We could now write the difference quotient as
f(3+h)−f(3)/h
where h≠0.
Use this difference quotient to calculate the average rate of change of f(x) from x=3 to x=3+h for the following particular values of h.
When h=0.2 the average rate of change of f(x) is __________ .
When h=0.1, the average rate of change of f(x) is ____________ .
When h=0.01, the average rate of change of f(x) is ____________ .
When h=−0.01, the average rate of change of f(x) is _____________ .
When h=−0.1, the average rate of change of f(x) is ______________ .
When h=−0.2, the average rate of change of f(x) is ______________ .

Answers

The average rate of change of f(x) for the given values of h are:
When h=0.2, the average rate of change of f(x) is 112.84.
When h=0.1, the average rate of change of f(x) is 206.41.
When h=0.01, the average rate of change of f(x) is 1850.5601.
When h=−0.01, the average rate of change of f(x) is -1807.5399.
When h=−0.1, the average rate of change of f(x) is -171.39.
When h=−0.2, the average rate of change of f(x) is -80.76.

To calculate the average rate of change of f(x) for the given values of h, we need to substitute the values of h into the difference quotient and simplify.

When h=0.2:
f(3+0.2)−f(3)/0.2 = [(3.2^3−15(3.2)) - (3^3−15(3))]/0.2 = (32.768 - 10.2) - (27 - 45)/0.2 = 22.568/0.2 = 112.84

When h=0.1:
f(3+0.1)−f(3)/0.1 = [(3.1^3−15(3.1)) - (3^3−15(3))]/0.1 = (29.791 - 9.15) - (27 - 45)/0.1 = 20.641/0.1 = 206.41

When h=0.01:
f(3+0.01)−f(3)/0.01 = [(3.01^3−15(3.01)) - (3^3−15(3))]/0.01 = (27.270601 - 8.765) - (27 - 45)/0.01 = 18.505601/0.01 = 1850.5601

When h=−0.01:
f(3+(-0.01))−f(3)/(-0.01) = [(2.99^3−15(2.99)) - (3^3−15(3))]/(-0.01) = (26.730399 - 8.655) - (27 - 45)/(-0.01) = 18.075399/(-0.01) = -1807.5399

When h=−0.1:
f(3+(-0.1))−f(3)/(-0.1) = [(2.9^3−15(2.9)) - (3^3−15(3))]/(-0.1) = (24.389 - 8.25) - (27 - 45)/(-0.1) = 17.139/(-0.1) = -171.39

When h=−0.2:
f(3+(-0.2))−f(3)/(-0.2) = [(2.8^3−15(2.8)) - (3^3−15(3))]/(-0.2) = (21.952 - 7.8) - (27 - 45)/(-0.2) = 16.152/(-0.2) = -80.76

Therefore, the average rate of change of f(x) for the given values of h are:
When h=0.2, value is 112.84.
When h=0.1, value is 206.41.
When h=0.01, value is 1850.5601.
When h=−0.01, value is -1807.5399.
When h=−0.1, value is -171.39.
When h=−0.2, value is -80.76.

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For the following exercises, use the properties of logarithms to expand each logarithm as much as possible. Rewrite each expression as a sum, difference, or product of logs. 15.log(z19x1319​)16.ln(b−40a−2​)17.log(x3y−4​)18.ln(y1−yy​​)

Answers

The properties of logarithms, we can expand each expression and rewrite it as a sum, difference, or product of logs. This makes it easier to simplify and solve the expression.

The properties of logarithms can be used to expand each logarithm as much as possible. These properties include the product property, the quotient property, and the power property. Using these properties, we can rewrite each expression as a sum, difference, or product of logs.

15. log(z^19*x^13*19​)
= log(z^19) + log(x^13) + log(19)
= 19*log(z) + 13*log(x) + log(19)

16. ln(b^−4*0*a^−2​)
= ln(b^-4) + ln(0) + ln(a^-2)
= -4*ln(b) + ln(0) + -2*ln(a)

17. log(x^3*y^-4​)
= log(x^3) + log(y^-4)
= 3*log(x) + -4*log(y)

18. ln(y^1*−y*y​​)
= ln(y^1) + ln(-y) + ln(y)
= 1*ln(y) + ln(-y) + ln(y)

By using the properties of logarithms, we can expand each expression and rewrite it as a sum, difference, or product of logs. This makes it easier to simplify and solve the expression.

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Line f has a slope of -2 and line g has a slope of -8/4. What relationship do the lines have, based on their slopes?
A.) The lines intersect.
B.)The lines intersect to form right angles.
C.)The lines are parallel.
D.)No relationship can be determined.

Answers

The lines are parallel , based on their. So the C option  is correct.

What is slope formula?

The formula to find the slope between 2 coordinates of a line is given by;

m = (y₂ - y₁)/(x₂ - x₁)

Line f has a slope of -2 and line g has a slope of -8/4. To determine the relationship between the lines based on their slopes, we can compare their slopes.

If two lines have the same slope, they are parallel. If two lines have slopes that are negative reciprocals of each other, they are perpendicular (and intersect to form right angles). Otherwise, the lines are neither parallel nor perpendicular and will intersect at some point.

The slope of line g can be simplified to -2, which is the same as the slope of line f. Therefore, the lines f and g have the same slope and are parallel (option C).

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Please help! Will mark brainliest!

Answers

Different triangles with the same areas include:

Right angle triangle: base = 6, height = 4

Acute triangle: base = 8, height = 3

Obtuse triangle: base = 16, height = 1.5

How to  create triangles with the same areas?

To create a right angle triangle, an acute triangle, and an obtuse triangle that all have the same area, we can use the following dimensions:

Right triangle: base = 6, height = 4

Acute triangle: base = 8, height = 3

Obtuse triangle: base = 16, height = 1.5

We can calculate the area of each triangle using the formula A = 1/2 (base x height):

Right triangle: A = 1/2 (6 x 4) = 12

Acute triangle: A = 1/2 (8 x 3) = 12

Obtuse triangle: A = 1/2 (16 x 1.5) = 12

Therefore, we can see that all three triangles have the same area, which is 12 square units. We know this because they all have the same base-to-height ratios, which means they have the same "steepness" or "slope". This means that the area of each triangle is proportional to its base and height, and since they all have the same ratio of base to height, they will all have the same area.

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The number of blueberry muffins that a baker makes each day is 30% of the total number of muffins she makes.
A. On Monday, the baker makes 42 blueberry muffins. What is the total number of muffins that the baker makes on Monday?


B. On Tuesday, the baker makes a total of 60 muffins. How many blueberry muffins does the baker make on Tuesday?

Answers

The baker makes a total of 140 muffins on Monday.

The baker makes 18 blueberry muffins on Tuesday.

What are percentages?

Percentages are a way of expressing a fraction or proportion out of 100. The term "percent" literally means "per hundred." Percentages are commonly used in many areas of everyday life, including finance, science, and statistics.

To express a number as a percentage, it is multiplied by 100. For example, 0.75 is equivalent to 75 percent, since 0.75 x 100 = 75. Similarly, 50 percent is equivalent to 0.5 or 1/2.

Percentages are commonly used to express changes and comparisons. For example, if a product's price increases from $100 to $120, this represents a 20 percent increase in price. If a person scored 80 out of 100 on a test, this represents an 80 percent score.

Percentages are also used to calculate percentages of a total. For example, if a person earned $40,000 out of a total company income of $500,000, their income represents 8 percent of the total income. Similarly, if a person wants to calculate a 20 percent tip on a $50 meal, they would calculate 20 percent of $50, which is $10.

In summary, percentages are a way of expressing a fraction or proportion out of 100, and are commonly used to express changes, comparisons, and percentages of a total in everyday life.

A. Let's assume the total number of muffins the baker makes on Monday to be x.

According to the problem, the number of blueberry muffins that the baker makes is 30% of the total number of muffins.

So, 30% of x is equal to 42:

0.30x = 42

To solve for x, we can divide both sides by 0.30:

x = 140

Therefore, the baker makes a total of 140 muffins on Monday.

B. Let b be the number of blueberry muffins the baker makes on Tuesday.

According to the problem, the number of blueberry muffins is still 30% of the total number of muffins. So, we can set up the equation:

0.30(60) = b

Simplifying the left side:

18 = b

Therefore, the baker makes 18 blueberry muffins on Tuesday.

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What are the solutions for the equation 6x²-11x-7=0

Answers

The solutions for the equation 6x²-11x-7=0 are x = -1/2 and x = 7/3

How to determine the solution

It is important to note that quadratic equations are defined as equations having the highest degree of x as 2.

From the information given, we have that the quadratic equation is given as;

6x²-11x-7=0

Now, multiply the coefficient of x squared with the constant value, then find the pair factors of the product that adds up to given the coefficient of x = -11

We have;

6x² - 14x + 3x - 7 =0

Group the expression in pairs

(6x² - 14x) + (3x - 7) = 0

Factor the expressions

2x(3x - 7) + 1(3x - 7) = 0

Then, we have;

(2x + 1) and (3x - 7) = 0

x = -1/2

x = 7/3

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3/a times what equals 1

Answers

Answer: 3

Step-by-step explanation: try to solve for a by itself by multiplying it on both sides that give you 3 = 1*a. that simply just means that a is equal to 3, so you substitute three to the a variable that will give 3/3 that's equal to 1.

The Moondance Riding Academy held its annual horse show for 3 days. The total amount collected in entry fees for the 3 days was $1,450. The amount collected, in dollars, is shown for each of the 3 days in the bar graph below: Approximately what percent of the money collected from entry fees over the 3 days was collected on Day 2?
pleas help me

Answers

Answer:

To find the percentage of the money collected from entry fees over the 3 days that was collected on Day 2, we need to first find the total amount collected for all three days.

Total amount collected = $750 + $400 + $300 = $1450

Then, we need to find what fraction of the total was collected on Day 2:

Amount collected on Day 2 = $400

Fraction of total collected on Day 2 = $400 / $1450

Finally, we convert the fraction to a percentage:

Fraction of total collected on Day 2 = $400 / $1450 = 0.2759

Percentage of total collected on Day 2 = 0.2759 x 100% = 27.59%

Therefore, approximately 27.59% of the money collected from entry fees over the 3 days was collected on Day 2.

A college entrance exam has a mean of 500 and a standard deviation of 100 in the population. A small liberal arts college has 100 applicants with a mean of 510. The college wants to determine whether its applicants have significantly higher scores than the general population of applicants. The data analyst obtains a t statistic of 1. 70 and a one-tailed probability of. 4. What would the probability be if the analyst performed a two-tailed test?

Answers

The probability when analyst performed a two-tailed test for the given one tailed probability is equal to 0.2.

Mean = 500

Standard deviation = 100

Number of applicants in art college = 100

Mean of the art college = 510

t-statistic = 1.70

One tailed probability = 0.4

Analyst performed a two-tailed test,

Probability value = 2(one-tailed probability value)

In a two-tailed test, deviations from the mean in both directions.

Probability of observing values are both higher and lower than the mean.

⇒ Probability for two-tailed test = Probability value for one-tailed test / 2

⇒Probability for two-tailed test = 0.4 / 2

⇒Probability for two-tailed test = 0.2

Therefore, the probability for a two-tailed test is equal to 0.2.

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what is x^-2y(x^3y^5)^3 in simplest form

Answers

Hope this helps! My answer typed would probably look like a hot mess so hers a visual:

Mariana buys bottles of orange juice at the corner store. Assume each bottle of juice is the same price. The proportional relationship between the number of juice bottles bought, j, and the total cost in dollars and cents, c, can be represented by the equation

=
0. 8

c=0. 8j. What is the cost in dollars and cents of each bottle of juice?

Answers

By evaluating the function in j = 1, we conclude that each bottle costs 80 cents.

We know that the total cost in dollars can be represented by the linear equation:

C(j) = 0.8*j

Where C is the cost, and j is the number of juice bottles bought.

Then to get the cost of each bottle, we can evaluate the function in 1, which means buying only one.

C(1) = 0.8*1 = 0.8

So each bottle costs $0.80 (or 80 cents).

In mathematics, a function is a relationship between a set of inputs and a set of possible outputs, such that each input is associated with a unique output. Functions are represented by mathematical expressions or equations that specify how the input values are transformed into output values. For example, the function f(x) = x^2 takes an input value x and produces an output value equal to x squared.

Functions play a crucial role in many areas of mathematics, science, and engineering. They can be used to model complex systems, analyze data, and solve problems. Functions are also used in computer programming, where they are used to encapsulate a specific set of operations that can be reused throughout a program.

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Gavin wants to buy a skateboard that sells for $49.99. An advertisement says that next week the skateboard will be on sale for $42.50 how much will Gavin save if he waits until next week to buy the skateboard.

Answers

Answer:

$7.49

Step-by-step explanation:

49.99-42.50=7.49

Layla goes out to lunch. The bill, before tax and tip, was $16. 90. A sales tax of 6% was added on. Layla tipped 14% on the amount after the sales tax was added. How much tip did she leave? Round to the nearest cent

Answers

Answer:

2.51

Step-by-step explanation:

Layla goes out to lunch. The bill, before tax and tip, was $16.90. A sales tax of 6% was added on. Layla tipped 14% on the amount after the sales tax was added. How much tip did she leave? Round to the nearest cent.

Find the amount after sales tax was added:

Find the amount after sales tax was added:

bill

+

sales tax

=

bill+sales tax=

100

%

+

6

%

100%+6%

=

=

106

%

106%

amount after tax

=

amount after tax=

106

%

of

bill

106% of bill

=

=

1.06

×

$

16.90

1.06×$16.90

106% = 1.06

=

=

$

17.914

$17.914

Click to see alternative method

Find the tip:

Find the tip:

tip

=

tip=

14

%

of

amount after tax

14% of amount after tax

=

=

0.14

×

$

17.914

0.14×$17.914

14% = 0.14

=

=

$

2.50796

$2.50796

$

2.51

$2.51

Round to the nearest cent

Layla left a $2.51 tip.

Layla left a $2.51 tip.

4. Consider an isosceles triangle A ABC with base BC and ABC = 75°. We constructs points M on AC and N, P on AB so that BC = MB = PM and MN || BC. (a) Find BMN. (b) Find AMP. Justify your claims. A P

Answers

Answer:4. (a) BMN = 75°(b) AMP = 105°Explanation:Given that ABC is an isosceles triangle with base BC, and ABC = 75°. Also, BC = MB = PM and MN || BC.(a) To find BMN, we can use the fact that MN || BC. This means that ∠BMN = ∠ABC = 75°. Therefore, BMN = 75°.(b) To find AMP, we can use the fact that BC = MB = PM. This means that triangle BMP is an isosceles triangle with base MP. Since BMN = 75°, we can find ∠BMP by using the fact that the sum of the angles in a triangle is 180°:∠BMP = (180° - 75°)/2 = 52.5°Now, we can find AMP by using the fact that the sum of the angles in a triangle is 180°:AMP = 180° - 75° - 52.5° = 52.5°Therefore, AMP = 105°.

(a) The angle BMN is 30°.

(b) The angle AMP is 15°.

The total angle of a triangle is 180°.

How to find the angle in a triangle?

We have an isosceles triangle ABC with base BC and ∠ABC is 75°. We construct point M on AC and N, P on AB. It makes BC = MB = PM and MN || BC.

Since ABC is an isosceles triangle, ∠ACB is also 75°. See the picture attached!

Since BC = MB, the triangle MBC is isosceles with base MC. So, BMC is 75°.

The angles of triangle MBC will sum up to 180°. So,

∠MBC = 180 - (75 + 75) = 30°

The angle BMN and MBC is alternate interior angles, so

BMN = ∠MBC = 30°

Now, we have ∠NBM = 75 - 30 = 45°. Since MB = PM, it makes BMP an isosceles triangle. The angle BPM will be the same with PBM. It is 45°.

The angle PMN will be

= 180 - (45 + 45 + 30)

= 60°

The angle CMB, BMN, NMP, and AMP are supplementary. So, the angle AMP is

= 180 - (75 + 30 + 60)

= 15°

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This diagram is a genetic map that shows the relative positions of four alleles
along a chromosome.
Chromosome
H
G
k
p
Which two alleles have the highest probability of being inherited together?
A. G and K
B. H and K
C. G and P
D. H and P

Answers

The two alleles that have the highest probability of being inherited together are A. G and k.

Why would certain alleles have a greater probability of being inherited together?

Alleles that are physically close to each other on a chromosome have a higher probability of being inherited together, a phenomenon known as linkage. The closer two alleles are to each other on a chromosome, the less likely it is that they will be separated by a recombination event during meiosis.

The degree of linkage between two alleles is determined by their relative physical distance on the chromosome. The closer two alleles are, the higher the probability that they will be inherited together.

G and k are the closest alleles to each other on the genetic map and so have a higher probability of being inherited together.

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Ashley reads 64 pages of her book on Monday, 56 pages on Tuesday. She reads a total of 180 pages on Monday through Wednesday. How many pages did she read on Wednesday?

Answers

Answer:

60 pages

Step-by-step explanation:

64 + 56 = 120

180-120 = 60 pages

The measures of the angles of a triangle are shown in the figure below. Solve for x.

Answers

The value of x will be 6° according to the remaining angles values in the diagram.

What is a Triangle?

With three sides, three angles, and three vertices, a triangle is a closed, two-dimensional object. A polygon also includes a triangle.

How are the sum of triangles calculated in a triangle?

In a triangle, the total interior angles are supplementary. In other words, the sum of a triangle's inner angle measurements is 180°. Hence, we can write the triangle sum theorem's formula as A + B + C = 180° for the triangle ABC.

Now according to the question

                          => 40+110+8x-18=180 (Theorem)

                          => 150+8x-18=180

                          => 8x=180-150+18

                          => 8x=48

                          => x=6°

The  value of x will be : 6°

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