In the function f(x), x is replaced with 2x and 1 is added to the function.
f(x) = -3 sin x
What effect does this have on the graph of the function?
Answer:
385865
Step-by-step explanation:
this is not correct question because I can't see this
Express the following fraction in simplest form using only positive exponents (fraction in pic)
The simplest form of the fraction in this problem is given as follows:
t^6.
How to simplify the fraction?The fraction in the context of this problem is defined as follows:
2(t^4)³/2t^6.
The numeric constant of both the numerator and the denominator is of two, hence it can be simplified, as follows:
(t^4)³/t^6.
At the numerator, we apply the power of power rule, meaning that when we have a single base elevated to multiple exponents, we can multiply the exponents, hence:
(t^4)³ = t^(4 x 3) = t^12.
When we divide two terms with the same base and different exponents, we keep the base and subtract the exponents, hence the simplified expression is given as follow:
t^12/t^6 = t^(12 - 6) = t^6.
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The solution to the expression using laws of exponents is: t⁶
How to use laws of exponents?Some of the laws of exponents are:
1) Product of powers rule: This means that we are to add the powers together when multiplying like bases.
2) Quotient of powers rule: This means that we are to subtract powers when dividing like bases.
3) Power of powers rule: This means that we are to multiply powers together when raising a power by another exponent.
4) Power of a product rule: This means that when any base is to be multiplied by an exponent, distribute the exponent to each part of the base.
We are given the expression:
2(t⁴)³/2t⁶
2 is common to both numerator and denominator and they will cancel out to give: (t⁴)³/t⁶
Using power of power rule on the numerator, we have:
t¹²/t⁶
Using quotient of powers rule, we have:
t¹²/t⁶ = t¹²⁻⁶
= t⁶
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HELP ASAP, 65 POINTS NEED ANSWERS
The type of sampling used in each case are:
Statement A → Stratified random sampling.
Statement B → Cluster sampling
Statement C → Simple random sampling
Statement D → systematic sampling
How to find the type of statistics sampling?There are different ways that samples are classified such as:
1) Convenience sampling: This is where samples are drawn from a conveniently available pool.
2) Random Sampling: This is when we put all the options into a particular hat and drawn some of them.
3) Systematic Sampling: This is when every nth element is taken. For example, we want to survey something in the school, and then we interview every 10th person.
4) Cluster Sampling: This usually divides a population into groups, referred to as clusters, and each element in that cluster is surveyed.
5) Stratified Sampling: This will divide the population into groups. However, unlike cluster sampling, here, only some elements of the group are surveyed.
From the given problem:
Statement A is Stratified random sampling.
Statement B is Cluster sampling
Statement C is Simple random sampling
Statement D is systematic sampling
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Combine √2 -3√2 5√2 to write one single simplified radical
The radical expression √2 -3√2 + 5√2 when simplified has its value to be 3√2
Simplifying the radical expressionTo combine √2, -3√2, and 5√2 into a single simplified radical, we need to first group the terms with the same radicand (the number inside the square root).
In this case, all three terms have a radicand of 2.
Adding -3√2 and 5√2, we get 2√2.
Then, combining this with √2, we have 3√2 as the simplified radical form of the expression.
Thus, the simplified radical form of √2 -3√2 + 5√2 is 3√2.
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If 2 pretzel makers can make 444 pretzels in 6 hours, how long does it take 5 pretzel makers to make 88 pretzels?
Using simple mathematical operations we know that 19.03 min will be required to make 88 pretzels by 5 makers.
What are mathematical operations?In mathematics, an operation is a function that transforms zero or more input values into well-defined output values.
The number of operands is the arity of the operation.
The four basic operations in mathematics for all real numbers are:
Addition (sum; '+') Subtraction (difference formation; '-') Multiplication (product formation; '×') Division (quotient formation; '÷')
So, insert values as follows: t is time
2*6/44 = 5*t/88
t = 8*88/444*5 = 0.3171 hours
0.3171*60 = 19.026 min
Therefore, using simple mathematical operations we know that 19.03 min will be required to make 88 pretzels by 5 makers.
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Complete question:
If 2 pretzel makers can make 444 pretzels in 6 hours, how long does it take 5 pretzel makers to make 88 pretzels?
Please help me on this question
Answer:
Step-by-step explanation:
The hypotenuse length is not given here. So we have to find it.
We take hypotenuse length as X
by using the Pythagoras theorem
x² = 6²+10²
x= √136
x=2√34
the perimeter of the garden = 6+10+2√34
= 16+2√34
= 5.8+16
=21.8m
An architect wants to draw a rectangle with a diagonal of 25inches. The length of the rectangle is to be 10 inches more than twice the width. What dimensions should she make the rectangle?
Step-by-step explanation:
the length of the diagonal is calculated out of the length and width by using Pythagoras (after all, one length, one width and the diagonal are creating a right-angled triangle).
25² = length² + width²
length = 2×width + 10
we are using the second in the first equation :
25² = (2×width + 10)² + width²
625 = 4×width² + 40×width + 100 + width²
525 = 5×width² + 40×width
105 = width² + 8×width
width² + 8×width - 105 = 0
a quadratic equation
ax² + bx + c = 0
has the general solutions
x = (-b ± sqrt(b² - 4ac))/(2a)
in our case
x = width
a = 1
b = 8
c = -105
width = (-8 ± sqrt(8² - 4×1×-105))/(2×1) =
= (-8 ± sqrt(64 + 420))/2 =
= (-8 ± sqrt(484))/2 =
= (-8 ± 22)/2 = -4 ± 11
width1 = -4 + 11 = 7
width2 = -4 - 11 = -15
a negative size of the length of a side of a shadow does not make any sense, so, our valid solution is
width = 7 in.
and then
length = 2×width + 10 = 2×7 + 10 = 14 + 10 = 24 in.
Omar recorded the number of hours he worked each week for a year. Below is a random sample that he took from
data.
13, 17, 9, 21
What is the standard deviation for the data?
Answer:
Approx. 4.47
Step-by-step explanation:
To calculate the standard deviation for the data, we need to follow these steps:
1. Calculate the mean (average) of the data:
mean = (13 + 17 + 9 + 21) / 4 = 15
2. Calculate the difference between each data point and the mean:
13 - 15 = -2
17 - 15 = 2
9 - 15 = -6
21 - 15 = 6
3. Square each difference:
(-2)^2 = 4
2^2 = 4
(-6)^2 = 36
6^2 = 36
4. Calculate the variance by taking the average of the squared differences:
variance = (4 + 4 + 36 + 36) / 4 = 20
5. Calculate the standard deviation by taking the square root of the variance:
standard deviation = sqrt(variance) = sqrt(20) ≈ 4.47
Therefore, the standard deviation for the data is approximately 4.47.
how do u solve 0.4x²+x=0.7
The solutions to the equation, 0.4x² + x = 0.7, are approximately x = -1.54 and x = 0.29.
Solving Quadratic equationsFrom the question, are solve the given quadratic equation.
To solve the equation 0.4x² + x = 0.7, we can start by rearranging it to the standard quadratic form ax² + bx + c = 0:
0.4x² + x - 0.7 = 0
Then, we can solve for x using the quadratic formula:
x = (-b ± √(b² - 4ac)) / 2a
In this case, a = 0.4, b = 1, and c = -0.7, so we have:
x = (-1 ± √(1² - 4(0.4)(-0.7))) / 2(0.4)
x = (-1 ± √(1 + 1.12)) / 0.8
x = (-1 ± √(2.12)) / 0.8
x ≈ -1.54 or x ≈ 0.29
Hence, the solutions are -1.54 and 0.29
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2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2x2=
Answer:
1048576
Step-by-step explanation:
2^20=1048576
You plan to invest R10 000 in a bank. which will give you a higher return: Investing at 14%. Compound twice a year
Investing R10,000 at 14% compounded twice a year for one year will give a return of approximately R1,449.49.
What is APR?The interest rate charged on a loan or generated on an investment is represented as a percentage over a year and is known as the annual percentage rate (APR). It does not account for compounding and simply considers the basic interest rate.
The total interest gained on an investment over the course of a year, taking into account the effect of compounding, is known as the annual percentage yield (APY), on the other hand.
The compound interest is given as:
[tex]A = P(1 + r/n)^{(nt)}[/tex]
For investing at 14% compounded twice:
[tex]A = R10,000(1 + 0.14/2)^{(2t)}\\A = R10,000(1.07)^{2t}[/tex]
Investment for t = 1 we have:
A = R10,000(1.07)²
A ≈ R11,449.49
Hence, Investing R10,000 at 14% compounded twice a year for one year will give a return of approximately R1,449.49.
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Need help I can’t answer them
The triangles that translate to triangle X are A and F.
Triangle ABC is translated to triangle A'B'C', 5 square(s) to the right and 4 square(s) down.
How are triangles translated?Triangles can be translated by moving each of their vertices a certain distance in a certain direction. The distance and direction of the translation can be described using vector notation.
For example, a translation of a triangle by the vector <a, b> would move each vertex of the triangle a units to the right and b units up. The resulting translated triangle would have the same shape and size as the original triangle, but would be located in a different position in the plane.
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Image transcribed:
Select all of the triangles below which are translations of triangle X.
Triangle ABC is translated to triangle A'B'C'.
Fill in the gaps below to describe the translation.
Triangle ABC is translated to triangle A'B'C'.
Fill in the gaps below to describe the translation.
___ square(s) to the left/right and ___ square(s) up/down
A
B
C
A'
B'
C'
Equations with fractions
Can someone please show me step by step how to answer this question.
now, if we take a looksie at the denominators on all sides, hmmm 2 and 3, so we can get an LCD of 6, so let's multiply both sides by 6 to do away with the denominators.
[tex]4-\cfrac{x-2}{2}=x+\cfrac{1-2x}{3}\implies \stackrel{\textit{multiplying both sides by }\stackrel{LCD}{6}}{6\left( 4-\cfrac{x-2}{2} \right)~~ = ~~6\left( x+\cfrac{1-2x}{3} \right)} \\\\\\ 24-3(x-2)~~ = ~~6x+2(1-2x)\implies 24-3x+6~~ = ~~6x+2-4x \\\\\\ 30-3x=2x+2\implies 30=5x+2\implies 28=5x\implies \cfrac{28}{5}=x\implies 5\frac{3}{5}=x[/tex]
A corporation creates a sinking fund in order to have $900,000 to replace some machinery in 10 years. How much should be placed in this account at the end of each month if the annual interest rate is 3.8% compounded monthly? (Round your answers to the nearest cent.) How much interest was earned during the third month of the 7th year?
The interest earned during the third month of the 7th year is $3,613.55.
What is interest rate?
The amount of interest due each period expressed as a percentage of the amount lent, deposited, or borrowed is known as an interest rate.
Let PMT be the monthly payment, r be the monthly interest rate, and n be the total number of payments. Then:
FV = PMT × [(1 + r)n - 1]/r
In this case, we want to find PMT, given that FV = $900,000, r = 0.038/12, and n = 10 × 12 = 120:
[tex]$900,000 = PMT * {[(1 + 0.038/12)}^{120} - 1]/(0.038/12)[/tex]
Solving for PMT, we get:
PMT = $682.48
[tex]FV = $682.48 * [(1 + 0.038/12)^87 - 1]/(0.038/12)\\\\ = $89,324.47\\\\PV = $682.48 * [(1 + 0.038/12)^83 - 1]/(0.038/12) \\\\= $85,710.92[/tex]
The interest earned during the third month of the 7th year is:
$89,324.47 - $85,710.92 = $3,613.55
Therefore, the interest earned during the third month of the 7th year is $3,613.55.
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if salini pays an interest of RS 650 for 2 years .Find the rate of interest
Answer:1300
Step-by-step explanation:
Rate of Interest for 2 years. 650 for one times 2.
Which data set has a mean absolute deviation of 0.64?
Please provide specific data sets, and I would be happy to help you calculate the mean absolute deviation and determine which one has a MAD of 0.64.
Hello! Based on your question, you'd like to know which data set has a mean absolute deviation (MAD) of 0.64. Unfortunately, without any specific data sets provided, I am unable to directly calculate the MAD for you. However, I can help explain the concept of mean absolute deviation and how to calculate it for a given data set.
Mean absolute deviation is a measure of dispersion or variability within a data set. It helps in understanding how spread out the data points are from the mean (average) of the data set. To calculate the MAD, follow these steps:
1. Compute the mean of the data set by adding all the data points and dividing the sum by the total number of data points.
2. Calculate the absolute deviation for each data point by subtracting the mean from each data point and taking the absolute value of the result.
3. Add all the absolute deviations obtained in step 2.
4. Divide the sum of absolute deviations by the total number of data points to get the mean absolute deviation.
When you find a data set with a MAD of 0.64, it indicates that, on average, the data points are 0.64 units away from the mean. Keep in mind that a smaller MAD value means the data points are closer to the mean, indicating less variability, whereas a larger MAD value indicates more variability within the data set.
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Find the arc length of the semicircle. Either enter an exact answer in terms of � πpi or use 3.14 3.143, point, 14 for � πpi and enter your answer as a decimal. units
The radius as 5, so the arc length of the semicircle is s = π(5) = 5π ≈ 15.71.
What is radius?Radius is a line segment that extends from the center of a circle or sphere to its circumference. It is the distance from the center to the edge of the circle or sphere. It is also used to measure the length of an arc of a circle. Radius is a necessary measure when calculating the area of a circle or sphere, as well as the volume of a sphere.
The arc length of a semicircle is given by the formula s = πr,
where r is the radius of the semicircle. In this case,
we are given the radius as 5, so the arc length of the semicircle is s = π(5) = 5π ≈ 15.71.
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The arc length of a semicircle with radius 'r' is equal to rπ or approximately 3.14r units.
What is an arc?
An arc is part of a circle's circumference. It is a segment of a curved line that is formed when a straight line intersects a circle or a curved shape. Arcs can be measured in length, angle, or radius, depending on the context.
To find the arc length of a semicircle, we need to know the radius of the circle and the angle subtended by the arc at the center of the circle.
Let's assume the radius of the semicircle is 'r'. Since it is a semicircle, the angle subtended by the arc at the center of the circle is 180 degrees or π radians.
The formula for arc length is given by:
arc length = radius x angle in radians
In this case, the angle is π radians and the radius is 'r'. Therefore, the arc length of the semicircle is:
arc length = r x π
We can leave the answer in terms of π or substitute the value of π to get a numerical answer. For example, if the radius of the semicircle is 4 units, the arc length will be:
arc length = 4 x π
arc length ≈ 12.57 units (using π ≈ 3.14)
Therefore, the arc length of a semicircle with radius 'r' is equal to rπ or approximately 3.14r units.
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What is the distance from (-7,5) and (2,5)
Answer:
9
Step-by-step explanation:
the distance between the two points is just the difference in x-values: -7-2 = 9.
Answer:
The distance between two points (-7, 5) and (2, 5) is [tex]\sqrt{35}[/tex]
Step-by-step explanation:
Given: Points (-7, 5) and (2, 5)
We have to find the distance between the given points (2, 5) and (5, 7)
Consider the given points (2, 5) and (5, 7)
Distance between two points is calculated using formula
[tex]D=\sqrt{(x_2-x_1)^2+(y_2-y_1^2}[/tex]
[tex](x_1,y_1)=(-7,5), \ (x_2,y_2)=(2,5)[/tex]
Thus, [tex]D=\sqrt{(5- (-7))^2+(5-2)^2}=\sqrt{35}[/tex]
Thus, The distance between two points (-7, 5) and (2, 5) is [tex]\sqrt{35}[/tex]
The average width of a movie theater seat is 23 inches. Thirty years ago, the typical movie theater seat was approximately 19 inches wide. Current movie theater seats are what percent of a theater seat from 30 years ago?
As a result, chairs in modern movie theatres are about 21.05% larger than those from theatres built 30 years ago.
How can I figure out a percentage?By reducing the value through the overall value and multiplying the outcome by 100, the percentage may be calculated. The proportion is calculated using the method (value/total value)100%.
We can use the formula for percentage increase to solve this problem:
% increase = (new value - old value) / old value × 100%
The new value is the current average width of a movie theater seat, which is 23 inches. The old value is the width of a movie theater seat from 30 years ago, which is 19 inches.
% increase = (23 - 19) / 19 × 100% ≈ 21.05%
Therefore, current movie theater seats are approximately 21.05% wider than a theater seat from 30 years ago.
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URGENT!! ILL GIVE
BRAINLIEST! AND 100 POINTS
GIFTS Joel has $96 to spend on at least 9 gifts for the holidays. He plans to buy puzzles that cost $8 or games that cost $12. How many of each can he buy? Part A Create a system of inequalities that represents the constraints in the problem. Let x be the number of puzzles Joel can buy and y be the number of games Joel can buy. Can Joel buy 2 games and 6 puzzles and satisfy the constraints?
We can conclude after answering the provided question that Joel cannot inequality satisfy the constraints by purchasing two games and six puzzles because 6 + 2 is less than 9.
What is inequality?In mathematics, an inequality is a non-equal relationship between two expressions or values. As a result, imbalance leads to inequality. In mathematics, an inequality connects two values that are not equal. Inequality is not the same as equality. When two values are not equal, the not equal sign is commonly used (). Different inequalities, no matter how small or large, are used to contrast values. Many simple inequalities can be solved by modifying the two sides until only the variables remain. However, a number of factors contribute to inequality: Negative values are divided or added on both sides. Exchange left and right.
puzzles while adhering to the constraints?
Let x be the number of puzzles that Joel can buy and y be the number of games that Joel can buy.
Joel has a total spending limit of $96. As a result, we can write the first inequality as follows:
8x + 12y ≤ 96
x + y ≥ 9
s: x ≥ 0 ≥ 0
To see if Joel can satisfy the constraints by purchasing two games and six puzzles, we enter x = 6 and y = 2 into the inequalities:
8x + 12y ≤ 968(6) + 12(2) ≤ 9672 ≤ 96 (True) (True)
x + y ≥ 96 + 2 ≥ 9 (False) (False)
Joel cannot satisfy the constraints by purchasing two games and six puzzles because 6 + 2 is less than 9.
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4: The radius of a cylinder is 3x-2 cm. The height of the cylinder is x + 3 cm. What is the
surface area of the cylinder? Use the formula A = 2²²² +2arh.
02 (3x²+10x-8)
O 27(12x² +7x-2)
O27(12x² - 2x+13)
O 27 (12x²-5x-2)
The surface area (A) of a cylinder is given by the formula A = 2πr² + 2πrh, where r is the radius of the cylinder and h is its height.
In this case, the radius of the cylinder is 3x - 2 cm, and its height is x + 3 cm. Substituting these values into the formula, we get:
A = 2π(3x - 2)² + 2π(3x - 2)(x + 3)
Simplifying this expression, we get:
A = 2π(9x² - 12x + 4) + 2π(3x² + 7x - 6)
A = 18πx² - 24πx + 8π + 6πx² + 14πx - 12π
A = 24πx² - 10πx - 12π
So the surface area of the cylinder is 24πx² - 10πx - 12π.
Julia can swim 8 km/hr in still water. She attempts to head straight east across a river flowing south at 3 km/hr. What is the magnitude and direction of Julia's velocity.
To solve this problem, we need to use vector addition to find the resultant velocity of Julia.
Let's assume that the east direction is the positive x-axis and the south direction is the negative y-axis.
The velocity of Julia in still water is 8 km/hr in the positive x-axis direction.
The velocity of the river is 3 km/hr in the negative y-axis direction.
To find the magnitude and direction of Julia's velocity, we need to find the resultant velocity vector, which is the vector sum of her velocity in still water and the velocity of the river.
Using the Pythagorean theorem, the magnitude of the resultant velocity can be calculated as:
|V| = √(Vx² + Vy²)
where Vx is the x-component of the resultant velocity and is equal to Julia's velocity in still water, and Vy is the y-component of the resultant velocity and is equal to the velocity of the river.
Vx = 8 km/hr
Vy = -3 km/hr
|V| = √(8² + (-3)²) = √(64 + 9) = √73 km/hr
The direction of the resultant velocity can be calculated as:
θ = tan⁻¹(Vy / Vx)
θ = tan⁻¹(-3 / 8) = -20.56°
The negative sign indicates that the resultant velocity vector makes an angle of 20.56° below the positive x-axis (east direction).
Therefore, the magnitude of Julia's velocity is approximately 8.54 km/hr, and the direction of her velocity is 20.56° below the positive x-axis (east direction).
I could not for the life of me figure this out.
The area of the shaded region under the standard normal curve with z = 0.49 is 1.
The area of the shaded region under the standard normal curve with z = 0.49 is 1.
What is curve?
In mathematics, a curve is a continuous and smooth (i.e., differentiable) mathematical object that represents a path or a trajectory. Curves can be defined in different ways, depending on the context in which they are used.
What is area of curve?
The area of a curve refers to the amount of space enclosed by a curve on a two-dimensional plane. Finding the area of a curve can be a challenging problem, especially when the curve is not a standard geometric shape such as a circle or rectangle.
According to given minformation:To find the area of the shaded region under the standard normal curve with z = 0.49, we need to use a standard normal distribution table or a calculator with a normal distribution function.
Using a standard normal distribution table, we find that the area to the left of z = 0.49 is 0.6864. This means that the area to the right of z = 0.49 is 1 - 0.6864 = 0.3136.
Since the normal curve is symmetric about the mean (z = 0), the area to the left of z = -0.49 is also 0.6864. Therefore, the area between z = -0.49 and z = 0.49 is:
0.6864 (area to the left of z = 0.49) + 0.3136 (area to the right of z = 0.49) = 1
So the area of the shaded region under the standard normal curve with z = 0.49 is 1.
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MARKING AS BRAINLIST PLEASE HELP!!
Answer:
b = 62°
Step-by-step explanation:
We Know
A triangle sum is 180°
We know two angles, one is 68.5° and the other is 49.5°.
Find angle b
We Take
180 - (68.5 + 49.5) = 62°
So, b = 62°
Someone answer this for me
Answer: -1/2x
Step-by-step explanation:
Rise over run method if you know it is really helpful
Given 2^a = 16 find the value of a.
Please explain thanks.
Step-by-step explanation:
[tex]2 {}^{a} = 16[/tex]
Since our variable is in the exponent, we take the logarithm of both sides in order to solve for a.
The log base is 2 In order to cancel out base 2,
[tex]a = log_{2}(16) [/tex]
[tex]a = 4[/tex]
A tire is sold at a discount of 10%. It is sold for $45. Find the usual price of the tire.
TAKE MY POINTS pleaseeee
Answer:
156 M
Reasoning you add How far He has walked from his starting point
Step-by-step explanation:
Answer: 156 m here u go
Please help me on b I’m so confused
Answer:
2×2×7=28
Step-by-step explanation:
28÷2=14
14÷2=7
Prime numbers 2, 2, and 7 make 28