Patrick had earned 125 points so far this year in math class. After the most recent assignment, Patrick now has 328 points. What was the percentage increase in points? Round your answer to the nearest​

Answers

Answer 1

Answer: 162%.

Step-by-step explanation:

To find the percentage increase in points, we need to calculate the difference between the two values, divide it by the original value, and then multiply by 100 to get the percentage.

The difference between Patrick's old score and his new score is:

328 - 125 = 203

The percentage increase is:

203/125 x 100% = 162.4%

Rounded to the nearest whole number, the percentage increase is 162%.


Related Questions

log x / 3 + log y / 3 + logz / 3
how do you condense

Answers

Using the product rule of logarithms, we can condense the expression as follows:

log(x/3 * y/3 * z/3)

= log((xyz) / 27)

So, the condensed form of the given expression is log((xyz) / 27).

Which fraction is not written in simplest form?

A. 35/84
B. 27/40
C. 18/65
D. 24/83

Answers

35/84

It can be simplified to 5/12 by dividing by 7.

Talitha will sell her bicycle shop to you for R250 000, with seller financing at a 6% nominal annual rate. The terms of the loan will require you to make 12 equal end-of-month payments per year for four years, and then make an additional final (balloon) payment of R50 000 at the end of the last month. What will your equal monthly payments be?

Answers

Answer:

Step-by-step explanation:

To calculate the equal monthly payments under this loan, we can use the formula for the present value of an annuity due, since the payments are due at the end of each period. The present value of the equal monthly payments can then be set equal to the loan amount of R250,000, and we can solve for the payment amount.

First, we need to calculate the present value factor for an annuity due with 12 payments per year over a four-year period, using a nominal annual rate of 6%.

PVIFA(due) = (1 - (1 + r/n)^(-nt))/((r/n)(1 + r/n))

Where:

r = nominal annual rate = 6%

n = number of compounding periods per year = 12

t = number of years = 4

PVIFA(due) = (1 - (1 + 0.06/12)^(-12*4))/((0.06/12)(1 + 0.06/12)) = 43.232

Next, we can use the formula for the present value of an annuity due to calculate the equal monthly payments:

PMT = PV / PVIFA(due)

Where:

PV = present value of the loan = R250,000

PMT = 250000 / 43.232 = R5,785.97

Therefore, your equal monthly payments will be R5,785.97. At the end of the four-year period, you will also need to make a final balloon payment of R50,000 to fully pay off the loan.

3. Factor puzzle. *Be sure to show work!
SHARED FACTORS
Each side of the square shares a factor with each of its neighboring sides.
Determine the missing values that make this statement true.

Answers

The missing values that make this statement true are as

x² + 9x + 14,  x² - 3x - 10

x² - 2x - 15,   x² + 10x + 21

What is the quadratic equation?

A quadratic equation is a second-degree polynomial equation of the form ax² + bx + c = 0, where a, b, and c are constants and x is the variable. The term "quadratic" comes from the Latin word "quadratus," which means "square."

First, let Xa, Xb, Xc, Xd = each factor

Xd = each factor which shows In the graph

Then, we can know that

Xa, Xb are the roots of x² + ___x + 14

Xb, Xd are the roots of x²= 3x - __

Xc, Xd are the roots of x² - __x - 15

Xa, Xc are the roots of x² + 10x + __

Xa * Xb = 14           Xd = 15/10 +Xa

Xb+ Xd = 3            14/Xa + 15/10 +Xa = 3

Xc* Xd = - 15          140 + 29Xa/Xa(10+Xa)

Xa + Xc = -10x        140 + 29Xa = 30Xₐ + 3Xₐ²

Xb = 14/Xa             3Xₐ² + Xₐ² - 140 = 0

14/Xa + Xd = 3       Xa1 = -7   Xa2 = 20/3

Xd = -15/-3             Xb1 = -2   Xb2 = 21/10

Xc = -10 -X1            Xc1 = -3    Xc2 = -30/3

Xc1 = -3     Xc2 = -30/3

Xd1 = 5         Xd2=9/10

There are two kinds of answers.

1) x² + 9x + 1x           Xa1 + Xb1 = -9

x² - 3x + 10           Xb1 * Xd1 = -10

x² - 2x - 15           Xc1 + Xd1 = 2

x² + 10x + 21           Xa1 * Xc1 = 21

2)

x² - (263/30)x + 14           Xa2 * Xb2 = 263/30

x² - 3x - (-189/100)           Xb2 * Xd2 = 189/100

x² - (413/30)x - 15           Xc2 + Xd2 = 413/30

x² + 10x + (1000/9)           Xa2 * Xc2 = 1000/9

Hence, the missing values that make this statement true are as

x² + 9x + 14,  x² - 3x - 10

x² - 2x - 15,   x² + 10x + 21

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An investor has an account with stock from two different companies. Last year, her stock in Company A was worth $5150 and her stock in Company B was worth $5250. The stock in Company A has increased 24% since last year and the stock in Company B has increased 20%. What was the total percentage increase in the investor's stock account? Round your answer to the nearest tenth (if necessary).

Answers

the total percentage increase in the investor's stock account is 22%.

How much is a percentage?

In mathematics, a ratio or figure that can be expressed as a fraction of 100 is known as a percentage. If we want to calculate a percentage of a number, we should split it by 100 before multiplying it by the original number. Therefore, the percentage relates to a component per 100. The term percent means "per 100". It is represented by the symbol "%". In mathematics, a percentage is a number or ratio that is represented as a fraction of 100. Although "pct," "pct," and occasionally "pc" are also used as abbreviations, the percent symbol "%" is most commonly used to denote it. A percentage is a number that has neither measurements nor a defined unit of measurement.

In the given question,

Increase in stock A= 24% of $5150 = 1236

Increase in stock = 20% of $5250 = 1050

The  total percentage increase in the investor's stock account= {(1236+1050)/(5150+5250)* 100=

= 21.98%

≈22%

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Please answer
A soft drink company calls 500 people at random and asks, “Isn’t it true that our product is better than our rival’s product?” and 75% of the people respond, “Yes.” Is this an example of bias? Explain.

Answers

In linear equation, “Yes.” This is the example of bias.

What in mathematics is a linear equation?

An algebraic equation with simply a constant and a first-order (linear) term, such as y=mx+b, where m is the slope and b is the y-intercept, is known as a linear equation. Sometimes, the aforementioned is referred to as a "linear equation of two variables," where x and y are the variables.

The question asked by the soft drink company is leading and suggestive in nature as it implies that their product is better than their rival's product. This can influence the respondent's answer and lead to biased results. Additionally, the sample size of 500 people may not be representative of the entire population, and the respondents may not be randomly selected.

Therefore, the results of this survey may not accurately reflect the true opinions of the population regarding the superiority of the soft drink company's product over its rival's product. To obtain more accurate and reliable results, the question should be more neutral and the sample should be randomly selected and representative of the population.

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B(t) = 100 · [tex]2^{\frac{t}{20} }[/tex]

How many minutes will it take for the culture to achieve 10,000 bacteria

Answers

Therefore, it will take about 46.5 minutes for the culture to achieve 10,000 bacteria.

What is expression?

In mathematics, an expression is a combination of numbers, symbols, and operators (such as +, -, x, ÷, etc.) that represents a mathematical quantity or relationship. Expressions can be as simple as a single number or variable, or they can be complex and involve multiple terms and operations. Examples of expressions include 2x + 5, 3y - 7, and (a + b)(c - d).

Here,

We can set up an equation to solve for t:

B(t) = 100 ·[tex]2^{t/20}[/tex]

= 10,000

Dividing both sides by 100, we get:

[tex]2^{t/20}[/tex] = 100

Taking the logarithm of both sides with base 2, we get:

t/20 = log2(100)

t = 20 · log2(100)

Using a calculator, we can simplify this to:

t ≈ 46.5 minutes

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Triangle ABC is rotated 180 degrees counterclockwise around vertex c. find the coordinates of B. B is (4,4) C is (3,1)

Answers

The image of the point B after the rotation by 180 degrees about point C is (0, 0)

How to determine the image of the point B after the rotation

Given that

B = (4, 4)

C = (3, 1)

The rotation rule is given as

Rotation by 180 degrees counterclockwise around vertex C

The rule of 180 degrees counterclockwise about the origin is

(x,y) = (-x,-y)

If the center of rotation is (a, b), then we have

(x,y) = (-(x - a) + b, -(y - b) + a)

So, we have

B' = (-(4 - 3) + 1, -(4 - 1) + 3)

Evaluate

B' = (0, 0)

Hence, the image of the point is (0, 0)


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Majesty Video Production Inc. wants the mean length of its advertisements to be 35 seconds. Assume the distribution of ad length follows the normal distribution with a population standard deviation of 2 seconds. Suppose we select a sample of 14 ads produced by Majesty.

Answers

a. The shape οf the distributiοn οf the sample mean time is nοrmal.

b. The standard error is 0.5345.

What is the standard deviatiοn?

Standard deviatiοn is: It is a measure οf hοw spread οut numbers are. It is the square rοοt οf the Variance, and the Variance is the average οf the squared differences frοm the Mean.

Given that:

μ =35

σ = 2

n = 14

a. The shape of the distribution of the sample mean time is normal.

b. To calculate the standard error of the mean time, we would apply this formula,

Standard error :

[tex]$ \rm SE = \frac{ \sigma}{\sqrt{(n)} }[/tex]

[tex]$ \rm SE = \frac{ 2}{\sqrt{(14)} }[/tex]

SE = 0.5345

Thus, the standard error is 0.5345.

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Complete question:

Majesty Videο Prοductiοn Inc. wants the mean length οf its advertisements tο be 30 secοnds. Assume the distributiοn οf ad length fοllοws the nοrmal distributiοn with a pοpulatiοn standard deviatiοn οf 2 secοnds. Suppοse we select a sample οf 16 ads prοduced by Majesty.

a. What can we say abοut the shape οf the distributiοn οf the sample mean time?

b. What is the standard error of the mean time?

Identifying the values a, b, and c is the first step in using the Quadratic Formula to find solution(s) to a quadratic equation. What are the values a, b, and c in the following quadratic equation? -3x^2 -5x +9 =0

Answers

Answer:

The quadratic equation is in the standard form: ax^2 + bx + c = 0. To use the quadratic formula to find the solutions, we need to identify the values of a, b, and c in the equation:

a is the coefficient of the x^2 term, which is -3 in this case.

b is the coefficient of the x term, which is -5 in this case.

c is the constant term, which is 9 in this case.

Therefore, the values of a, b, and c in the quadratic equation -3x^2 - 5x + 9 = 0 are:

a = -3

b = -5

c = 9

Solve the equation √y+3=√y +√ 3

Answers

Step-by-step explanation:

so, it is

sqrt(y + 3) = sqrt(y) + sqrt(3)

first we square both sides :

y + 3 = y + 3 + 2×sqrt(y)×sqrt(3) =

= y + 3 + 2×sqrt(3y) =

= y + 3 + sqrt(4×3y) = y + 3 + sqrt(12y)

0 = sqrt(12y)

we square again :

0² = 12y

0/12 = 0 = y

Find the quotient. What is the remainder?

233 ÷ 6

Answers

Answer:

When you divide 233 by 6 using long division, you get:

38

---

6|233

 216

 ---

  17

Therefore, 233 ÷ 6 = 38 with a remainder of 17

Answer:

38.83 (the 3 goes on and on)

Use graphical methods to solve this linear programming problem.
Maximize z = 3x + 4y
subject to 2x - 3y ≤ 12
x + y ≥ 3
3x + 4y ≥ 24
x ≥ 0
y ≥ 0

What is the maximum value of​ z? Select the correct choice​ below, and if​ necessary, fill in the answer box to complete your choice.

A. The maximum value is ___ (Simplify answer)
B. There is no maximum.

At what​ point(s) does the maximum value of z​ occur? Select the correct choice below​ and, if​ necessary, fill in the answer box to complete your choice.

A. The maximum value of z occurs only at the​ point(s) ___
​(Type an ordered pair. Use a comma to separate answers as​ needed.)
B. The maximum value of z occurs at the points ___ and at all points on the line segment connecting them. ​(Type an ordered pair. Use a comma to separate answers as​ needed.)
C. There is no maximum value of z.

Answers

Answer:

B.  There is no maximum value.

C.  There is no maximum value of z.

Step-by-step explanation:

To solve this linear programming problem using graphical methods, start by graphing the feasible region determined by the given constraints:

2x - 3y ≤ 12x + y ≥ 33x + 4y ≥ 24x ≥ 0y ≥ 0

We can graph each of these inequalities by first plotting the corresponding boundary line, and then shading in the appropriate region.

Rearrange the first three inequalities to isolate y:

[tex]\boxed{\begin{aligned}2x - 3y & \leq 12\\2x - 12 & \leq 3y \\3y &\geq 2x - 12\\y& \geq \dfrac{2}{3}x-4\end{aligned}}[/tex]  [tex]\boxed{\begin{aligned}x + y & \geq 3\\y & \geq -x+3\\ \phantom{w}\\\phantom{\dfrac12}\end{aligned}}[/tex]  [tex]\boxed{\begin{aligned}3x + 4y & \geq 24\\4y & \geq -3x + 24\\y & \geq -\dfrac{3}{4}x + 6\\\phantom{w}\end{aligned}}[/tex]

Graph the inequalities.

If the inequality sign is ≥, draw a solid line and shade above the line.If the inequality sign is ≤, draw a solid line and shade below the line.

The feasible region is the region that is shaded by all of the inequalities.

Please see the attached graph.


A bounded feasible region may be enclosed in a circle and will have both a maximum value and a minimum value for the objective function.

If a feasible region is unbounded, and the coefficients on the objective function are all positive, then an unbounded feasible region will have a minimum but no maximum, since there is no limit on how big it can get.

Therefore, as the feasible region for the given constraints is unbounded, and the coefficients of the objective function z = 3x + 4y are all positive, there is no maximum value.

The product of two positive consecutive integers is 2 less than
twice their sum. Find the integers.

Answers

Answer:

The integers are 5 and 7.

Step-by-step explanation:

im 99% sure that is right! hope i helped!

jay eats 2/3 of a pizza but if dan eats 4 times that amount how much did dan eat​

Answers

Answer:

Dan eat 2 2/3 of a pizza

Step-by-step explanation:

the answer is above

Let

x-----> amount of pizza Jay ate

y-----> amount of pizza Dan ate

we know that

----> equation A

-----> equation B

substitute equation A in the equation B and solve for y

Convert to mixed number

Can someone help
me?

Answers

Answer:

To find the real and imaginary parts of the complex number 26 = a + bi, we can use the fact that:

a + bi = 26

Taking the complex conjugate of both sides, we get:

a - bi = 26

Adding the two equations, we get:

2a = 52

Solving for a, we get:

a = 26

Substituting this value into one of the equations, we get:

26 + bi = 26

Therefore, b = 0.

Therefore, the real part of 26 is a = 26, and the imaginary part is b = 0.

Let T : R³ → R³ be the linear transformation determined by the matrix:

Answers

Therefore , the solution of the given problem of matrix comes out to be  V = (4/3)π(1³) = (4/3)π.

Describe matrix.

A matrix is a collection of integers set up in a rectangular array with rows and columns. The elements or components of the matrix are the integers. Numerous areas of mathematics as well as the fields of economics, physics, statistics, and architecture all make extensive use of matrix algebra.

Here,

(a)

Let (x1, x2, x3) be any point in the set {(x1, x2, x3) e IR³ | x1²/a² + x2²/b² + x3²/c² ≤ 1}, on the other hand. Next, we have

(x1²/a²) + (x2²/b²) + (x3²/c²) ≤ 1

When we multiply both parts by 3, we obtain:

a²x1² + b²x2² + c²x3² ≤ 3

The condition for T(S) is satisfied by (x1, x2, x3), indicating that (x1, x2, x3) is in T.(S).

T(S) is the collection ({(x1, x2, x3) e IR³ | x1²/a² + x2²/b² + x3²/c² ≤ 1}.a result.

(b) The following formula determines the volume of the spheroid with semiaxes of lengths(1/√(a))(1/√(b)) and (1/√(c))

=>V = (4/3)π (1/√(a))(1/√(b))(1/√(c))

If we replace a = b = c = 1, we get:

=> V = (4/3)π (1)(1)(1) = (4/3)π

The following algorithm determines the unit ball's volume in IR3:

=> V = (4/3)π(1³) = (4/3)π

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On New Year's Eve, the probability of a person having a car accident is 0.09. The probability of a person driving while intoxicated is 0.32 and probability of a person having a car accident while intoxicated is 0.15. What is the probability of a person driving while intoxicated or having a car accident?



Round to 2 decimal places

Answers

Answer:

Step-by-step explanation:

To calculate the probability of a person driving while intoxicated or having a car accident, we need to use the formula for the union of events:

P(A or B) = P(A) + P(B) - P(A and B)

where A and B are the events of driving while intoxicated and having a car accident, respectively.

Using the probabilities given in the problem, we can calculate:

P(intoxicated) = 0.32

P(accident) = 0.09

P(accident | intoxicated) = 0.15

To find P(intoxicated or accident), we first need to find P(intoxicated and accident). We can use the formula for the conditional probability as follows:

P(intoxicated and accident) = P(accident | intoxicated) x P(intoxicated)

P(intoxicated and accident) = 0.15 x 0.32 = 0.048

Now we can use the formula for the union of events:

P(intoxicated or accident) = P(intoxicated) + P(accident) - P(intoxicated and accident)

P(intoxicated or accident) = 0.32 + 0.09 - 0.048

P(intoxicated or accident) = 0.362

Therefore, the probability of a person driving while intoxicated or having a car accident is 0.362, or approximately 36.2%.

Find the value of the following:
tan (sin-¹ // )
[?}√[
Give your answer in lowest terms.
Rationalize the denominator If necessary.
Enter the number that belongs in the green box.
Enter

Answers

The value of the given trigonometric expression tan(arcsin (2/7)) is 0.29.

What are expressions?

Mathematical statements called expressions must have a minimum of two words with either numbers, variables, or both, joined by an operator. The four different types of mathematical operators are addition, subtraction, multiplication, and division. For instance, the expression x + y is an expression where x and y are words with an addition operator between them. Mathematical expressions may be divided into two categories: algebraic expressions, which include both numbers and variables, and numerical expressions, which solely contain numbers.

The given expression is tan(arcsin (2/7)).

The value of arcsin(2/7) = 16.60

Now substitute the value:

tan(16.60) = 0.29

Hence, the value of the given trigonometric expression tan(arcsin (2/7)) is 0.29.

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The trigonometric expression tan(arcsin (2/7)) has a value of 0.29.

What are trigonometric expressions?

Mathematical statements called expressions must have a minimum of two words with either numbers, variables, or both, joined by an operator.

The addition, subtraction, multiplication, and division operations are the four distinct categories of arithmetic operators.

For instance, the expression x + y is an expression where x and y are words with an addition operator between them.

Mathematical expressions may be divided into two categories: algebraic expressions, which include both numbers and variables and numerical expressions, which solely contain numbers.

The given expression is tan(arcsin (2/7)).

The value of arcsin(2/7) = 16.60

Now substitute the value:

tan(16.60) = 0.29

Hence, the value of the given trigonometric expression tan(arcsin (2/7)) is 0.29.

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what is the value of 6(2b-4) when b =3

Answers

Answer: 12

Step-by-step explanation:

Use BODMAS, so first solve the inside of the bracket:

2*3= 6

6-4= 2

Now we can multiply that by the number outside the bracket. Why?

Because a number outside a bracket means to multiply that number by everything in the bracket. So:

6 * 2 = 12

Answer: 12

Step-by-step explanation:

2 x 3 = 6

6 - 4 = 2

6 x 2 = 12

The circumference of the circle is 20 pi inches. What is the arc length of the shaded sector? Express the answer in terms of Pi. A circle. The shaded sector has an angle measure of 45 degrees. Recall that StartFraction Arc length over Circumference EndFraction = StartFraction n degrees over 360 degrees EndFraction. 2.5 pi inches 5 pi inches 7.9 pi inches 10 pi inches

Answers

The provided remark indicates that option (A) is accurate for 2.5 inches.

What length of time is an example?

The measurement or size of something to end to end is referred to as its length. To put it another way, it is the bigger of the upper two or three dimensions of a geometric form or object. For instance, the length and width of a parallelogram define its measurements.

Using the given equation:

Arc Length / 20π = 45/360

Cross multiply:

Arc length × 360 = 20π x 45

Arc length x 360 = 900π

Divide both sides by 360:

Arc length = 900π / 360

Arc Length = 2.5 π inches.

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A bag with 8 marbles has 8 blue marbles. A marble is chosen from the bag at random.

Answers

You would have a 100% chance of picking a blue marble because all the marbles are blue.

A contractor buys 18 yd of nylon carpet and 20 yd of wool carpet for $1922. A second purchase, at the same prices, includes 18 yd of nylon carpet and 27 yd of wool carpet for $2286. Find the cost per yard of the wool
carpet.

Answers

Therefore, the cost per yard of wool carpet is $52.

Which equation would you use as an example?

When two expressions are joined by the equal sign, a mathematical statement is referred to as an equation. 3x - 5 = 16 is an illustration of an equation.

Let x be the cost per yard of nylon carpet, and let y be the cost per yard of wool carpet.

From the information given in the problem, we can set up two equations based on the two purchases:

18x + 20y = 1922 (equation 1)

18x + 27y = 2286 (equation 2)

We want to find the cost per yard of wool carpet, y. We can solve for y by subtracting equation 1 from equation 2:

7y = 364

y = 52

Therefore, the cost per yard of wool carpet is $52.

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HELP! PLEASE PLEASE !!!!!!!!!!!!

Answers

Hi!

Okay, lets make this quick for you :)
1 Inch = 16 feet
2.25 (=1/4 as a decimal) x 16 is 36.
3 x 16 is 48.
4 x 16 is 64.
1.75 (= 3/4 as a decimal) x 16 is 28.

Add all of them together!
36 + 48 + 64 + 28 = 176.

So, your answer is 176.

Hope this helps!
~~~PicklePoppers~~~

Answer:

2512 ft^2

Step-by-step explanation:

Consider the whole figure as ABCD.

Law used: Opposite sides are equal.

Soln: For rectangle ABCD,

= L*B

= 4*3 = 12 inches

And,For extended area, BFEL:

L= 7/4B = 5/4

Area: L*B = 7/4*5/4 = 35/16

So,Area of given region:

=12-35/16

= 192-35/16 = 157/16 inches.

In Feet,we have:

Given 1in = 16 ft.

1 in^2 = 16*16 ft^t

in ^2 = 256 ft^t

157/16 in^2 = 256*157/16 = 2512 ft^2 (ans)

solve for me please
(5xy+3x-7)+(3xy-xy+3y+4)

Answers

Answer:

Step-by-step explanation:

7xy+3x+3y−3

The function f(x) is defined below. What is the end behavior of f(x)?

f(x) =-156x + 44x^2 - 4x^3 + 180

Answers

As x approaches negative infinity (i.e., x → -∞), the term -4x³ dominates the expression and becomes increasingly positive. Therefore, the end behaviour of f(x) as x → -∞ is f(x) → +∞.

What is behaviour of function?

The behavior of a function refers to how the function changes or behaves as the input values (usually denoted as x) approach certain values, typically positive infinity, negative infinity, or a critical point.

According to question:

To determine the end behaviour of the function f(x), we need to examine the highest-degree term of the polynomial, which is -4x³.

As x approaches positive infinity (i.e., x → ∞), the term -4x³ dominates the expression and becomes increasingly negative. Therefore, the end behaviour of f(x) as x → ∞ is f(x) → -∞.

Similarly, as x approaches negative infinity (i.e., x → -∞), the term -4x³ dominates the expression and becomes increasingly positive. Therefore, the end behaviour of f(x) as x → -∞ is f(x) → +∞.

In summary, the end behaviour of f(x) is:

As x → +∞, f(x) → -∞As x → -∞, f(x) → +∞

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A soft drink company calls 500 people at random and asks, “Isn’t it true that our product is better than our rival’s product?” and 75% of the people respond, “Yes.” Is this an example of bias? Explain.

Answers

Yes, this is an example of bias, specifically, response bias.

What is probability?

Probability is a measure of the likelihood or chance of an event occurring. It is a numerical value between 0 and 1, where 0 means that the event is impossible and 1 means that the event is certain. Probability can be calculated by dividing the number of favorable outcomes by the total number of possible outcomes. It is an important concept in many fields, including mathematics, statistics, physics, and engineering, and is used to make predictions, analyze data, and make decisions under uncertainty.

Here,

Response bias occurs when the answers given by respondents in a survey do not accurately reflect their true opinions or beliefs. In this case, the question asked by the soft drink company is leading and suggestive, and it suggests that the company's product is superior to its rival's product. By framing the question in this way, the soft drink company is more likely to receive a positive response from respondents, even if they do not actually believe that the company's product is better than its rival's product.

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Stoaches are fictional creatures that feed on funistrada.

According to Wikipedia, adult stoach weights are normally distributed, with a mean of 308 g and a standard deviation of 58 g.

You weigh a random sample of 54 stoaches, and find a sample mean weight of 313.8 g.

Assume Wikipedia is correct about the standard deviation. What is the p
-value for a two-sided hypothesis test that Wikipedia is also right about the mean weight? (Give your answer to 4 decimal places.)

Answers

Answer:

Step-by-step explanation:

Here's a step-by-step explanation of how to calculate the p-value for the hypothesis test:

Step 1: State the null and alternative hypotheses

The null hypothesis is that the true population mean weight of stoaches is 308 g, and the alternative hypothesis is that the true population mean weight is not 308 g.

H0: µ = 308 g (null hypothesis)

Ha: µ ≠ 308 g (alternative hypothesis)

Step 2: Determine the test statistic

We can use a t-test to determine the test statistic for this hypothesis test. The test statistic is given by:

t = (sample mean - hypothesized mean) / (standard error of the mean)

where the sample mean is 313.8 g, the hypothesized mean is 308 g, and the standard error of the mean is calculated as:

standard error of the mean = standard deviation / sqrt(sample size)

Substituting the given values, we get:

t = (313.8 - 308) / (58 / sqrt(54))

t = 1.547

Step 3: Determine the p-value

To determine the p-value, we need to find the probability of obtaining a test statistic as extreme or more extreme than our observed t-value, assuming the null hypothesis is true. Since we have a two-sided alternative hypothesis, we need to find the area in both tails of the t-distribution that is more extreme than our observed t-value.

Using a t-distribution table or calculator with 53 degrees of freedom (since we have a sample size of 54), we find that the probability of obtaining a t-value of 1.547 or greater is 0.0722 in the right tail, and the probability of obtaining a t-value of -1.547 or less is also 0.0722 in the left tail. Therefore, the p-value for the two-sided test is the sum of these two probabilities:

p-value = 0.0722 + 0.0722

p-value = 0.1444

Step 4: Compare the p-value to the significance level

The significance level is typically set to 0.05 for hypothesis tests. Since our calculated p-value (0.1444) is greater than the significance level of 0.05, we fail to reject the null hypothesis. This means that we do not have sufficient evidence to suggest that the true population mean weight of stoaches is different from 308 g.

In summary, the p-value for the two-sided hypothesis test is 0.1444, and since this value is greater than the significance level of 0.05, we do not reject the null hypothesis.

Can someone help me please?

Answers

Answer: yes, no, yes, no

Step-by-step explanation:

Translate the point (- 8, - 6) to the new origin given (h, k). Given center (h, k) = (5, 4), find point (x', y').

(13, 10)
(-13, -10)
(-3, -2)

Answers

Translation of the point (-8, -6) to the new origin (5, 4) is thus (-13, -10). Hence, the response is (-13, -10).

what is coordinates ?

A sequence of numbers known as coordinates is used to describe the location of a point or object in space or on a plane. Coordinates in two-dimensional space typically have two values, which are typically written as (x, y), where x denotes the horizontal position and y denotes the vertical position. Coordinates in three dimensions can have three values, denoted as (x, y, z), where x, y, and z stand for the position along the x, y, and z axes, respectively. In many different fields, such as geometry, physics, and computer graphics, coordinates are used.

given

The coordinates of the new origin must be subtracted from the given point in order to translate the point (-8, -6) to the new origin (h, k) = (5, 4).

x' = -8 - 5 = -13

y' = -6 - 4 = -10

Translation of the point (-8, -6) to the new origin (5, 4) is thus (-13, -10). Hence, the response is (-13, -10).

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