Mary, Tonya, Imani, and Luz were each painting identical-sized rooms. No one was able to finish in 1 day. The table shows the fraction of each room the girls painted.
Amount Painted
Which girl painted the most?

Answer:

Step-by-step explanation:

A, because the slope 3 is larger than a slope of 1.

Equation A's line is steeper than equation B's line because it has a higher slope.

To determine which equation's line is steeper, we need to compare their slopes. In both equations, the coefficients of the x term represent the slope of the line.

Let's first rewrite both equations in slope-intercept form, which is of the form y = mx + b, where "m" is the slope and "b" is the y-intercept:

A. y = 3x + 7

B. y = x + 9

In equation A, the coefficient of x is 3, which means the slope of the line is 3.

In equation B, the coefficient of x is 1, which means the slope of the line is 1.

Now, to compare the slopes, we can see that the slope of equation A (3) is greater than the slope of equation B (1).

This means that the line represented by equation A is steeper than the line represented by equation B.

Hence, equation A's line is steeper than equation B's line because it has a higher slope.

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The test results of the study's subjects serve as the sample.

The portion of the population from which data was actually gathered is known as a sample.

Sample = Hours of sleep and maths test score of the volunteers that were included in the study.

A population is the total group about which you want to draw conclusions. A sample is the specific group from which you will collect data. Always, the sample size is less than the whole population.

A population in research doesn't usually refer to humans. It can refer to a collection of whatever you desire to study, including things, occasions, groups, nations, species, and animals.

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.

The total cupcakes that are needed will be 9 1/2.

The fraction needed for yourself = 5 1/2

The fraction needed for your friend = 2 1/2

The fraction needed for your other friend = 1 1/2

The total fraction needed will be:

= 5 1/2 + 2 1/2 + 1 1/2

= 9 1/2

Therefore, the cupcakes that are needed will be 9 1/2.

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I want 5 halves of a cupcake for myself, 2 halves for my friend and 1 half for our other friend. What is the total needed?

Answer: x3+5x2+6x

Hope this helps

The equation that can be used to determine the cost of one drink is d = $12.8 / $2.

The total amount that is paid by Stephen and Paul is the sum of the total cost of the movie tickets, the cost of the drinks less the cost of the coupon.

Total amount paid = cost of two tickets + cost of the two drinks - coupon

($11 x 2) + ($d x 2) - $5 = $29.18

$22 + $2d - 5 = $29.18

$2d = $29.18 + $5 - $22

$2d = $12.18

d = $12.8 / $2

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The solution for x and y for the given expression are :

x =1/2y + −1/2 and y=2x+1 respectively.

What is Algebraic expression ?

Algebraic expressions are the idea of expressing numbers using letters or alphabets without specifying their actual values. The basics of algebra taught us how to express an unknown value using letters such as x, y, z, etc. These letters are called here as variables. An algebraic expression can be a combination of both variables and constants. Any value that is placed before and multiplied by a variable is a coefficient.

Here, the given equation is : 16x + 9 = 9y - 2x

Now,

solving for x :

16x+9=9y−2x (Add 2x to both sides.)

16x+9+2x=−2x+9y+2x

18x+9=9y

18x+9+−9=9y+−9 (Add -9 to both sides)

18x=9y−9

18x/18 = 9y−9/18 (Divide both sides by 18.)

x =1/2y + −1/2

solving for y :

16x+9=9y−2x

−2x+9y=16x+9 (Flip the equation.)

−2x+9y+2x=16x+9+2x (Add 2x to both sides.)

9y=18x+9

9y/9=18x+9/9 ( Divide both sides by 9.)

y=2x+1

Therefore, the solution for x and y for the given expression are :

x =1/2y + −1/2 and y=2x+1 respectively.

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Answer: Midpoint=(-3, -5 1/2)

Step-by-step explanation: Using the midpoint formula (x1+y1)/2, (x2+y2)/2 we can calculate. (-2+-4)/2, (-4+-7)/2 The answer (-3, -5 1/2)

The value of A is 35.

The given expression is as follows:

sin A = cos (A + 20)

using trigonometric rule,

sin A = cos(90 - A)

Therefore,

cos (A + 20) = cos(90 - A)

divide both sides by cos

Hence,

A + 20 = 90 - A

A + A = 90 - 20

2A = 70

divide both sides by 2

A = 70 / 2

A = 35

Therefore, the value of A is 35.

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Given that x = 8, y = 2, and z = 3, the equation 2x = 3yz is false.

An expression is a number, variable or the combination of both put together by operation symbols while an equation is a statement that shows that two expressions are equal and is separated by an equal sign "=".

To check if the equation 2x = 3yz is true when x = 8, y = 2, and z = 3, plug in or substitute the value of each variable to the equation and evaluate.

2x = 3yz

2(8) = 3(2)(3)

16 ≠ 18

Since 16 is not equal to 18, the given values do not satisfy the equation, then the statement is not true.

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Answer:89

Step-by-step explanation:add them all together and divide by however many numbers you have

Answer:

Hello, Hope your having a good day

Step-by-step explanation:

your Question; what is the mean of 76,88,100,75,95,100

The mean is 89

Median: 91.5

Mode: 100

What is a mean?

The mean of a data set is commonly known as the average. You find the mean by taking the sum of all the data values and dividing that sum by the total number of data values.

Hope this helped :)

pls like

Answer:

Step-by-step explanation:

f(x)=x^2+1

f(x^2+1)

f(x^2+1):x^4+2x^2+2

f(f(x))=x^4+2x^2+2

2nd answer

Hope this helps!^^

Answer:

18

Step-by-step explanation:

because i smart it's will be 18

The average cost for 16 gallons is $46.272

The first step is to calculate the price of one gallon

5= 14.46

1= x

cross multiply

5x= 14.46

x= 14.46/5

x= 2.892

The price of 16 gallons can be calculated as follows

= 16 × 2.892

= 46.272

Hence the price of 16 gallons is $46.272

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NO , this fact does not indicate that there was bias in the selection process and that the selection process was not random.

This fact does not indicate that there was bias in the selection process and that the selection process was not random unless we know the number of different subject majors among the thirty volunteers.

It is possible that out of 30 volunteers , 20  can be from music majors and the rest 10 are majors from other subjects.

so in this case it is possibility for the process to be random and for the three students in the committee to all end up being music majors.

Therefore , by the given information it can be said that the selection process  was random and unbiased.

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Answer: 4.25

 x

10

−

4

Step-by-step explanation:

Answer:

4.25x10^-9

Step-by-step explanation:

Answer:

Step-by-step explanation:

A function assigns the value of each element of one set to the other s/p

Answer: $29.52

Step-by-step explanation: 82x0.6=49.2 82-49.2=32.8 32.8x0.1=3.28

32.80-3.28=29.52

The simplified form of the radical is expressed as 6xz²∛4

Given the radical function below expressed as:

2(108x²z⁴)^1/3

Expand to have:

2(108x^2/3z^4/3)

Simplify to have:

2(∛108x^2/3z^4/3) = 6(x)

2(3)(∛4)*x^2/3 * z^4/3

6∛4 * x^2/3 * z^4/3

6xz²∛4

Hence the simplified form of the radical is expressed as 6xz²∛4

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Regression without parameters using smoothing splines A scatterplot's data is smoothed by fitting a smooth curve to it. Will initially concentrate on two variable issues: OneX Yand Will eventually include more than two predictors. Our example: Where "1; "1;::: "are independent from me," yi=f(xi) + I.

The appealing, adaptable, and widely-used method of non-parametric regression uses cubic splines for curve estimation. Although the fundamental concept was developed many years ago, the approach is maybe not as well recognized or used as it could be. This paper's topics and examples are meant to increase comprehension and broaden the applicability of the spline smoothing technology. The fundamentals of the method, its relationship with moving averages and other smoothing techniques, the automatic selection of the degree of smoothing, and the use of residuals for model adaption and diagnostic testing are just a few of the specific topics covered. A finite-dimensional Bayesian framework is used to address the issue of offering inference areas for curves and for pertinent curve attributes.

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Answer:

area of recatangle= 4x^3(x^3+3x^2+2x) =4x^6+12x^5+8x^4

Step-by-step explanation:

The line should go: 0, 1/3, 2/3, 1, 1 1/3, 1 2/3, 2 or 0, 0.33, 0.66, 1, 1.33, 1.66, 2 depending on how it's needed (decimals repeating)

Answer:

40

Step-by-step explanation:

If the student ran 4 miles for 5 days multiply 4 by 5 and you get 20. Then just do the same thing for 5 more days. Also, 20.  Then add 20 + 20 and you get 40

Answer: is this it?

Step-by-step explanation:

Answer:

X+90 = 147 ( sum of two interior angles equals opposite/adjacent exterior angle)

X = 147 - 90

X = 57

Answer:b

eez nuts srry

Step-by-step explanation:

Answer:

472.25

Step-by-step explanation:

1,889 divided by 4 = 472.25

you need a calculator haha

472.25

The student is wrong in the steps of the factorization.

Factorization of polynomials, also known as polynomial factorization, is a mathematical and computer algebraic technique that combines irreducible factors with coefficients in the same domain to produce a polynomial with coefficients in a particular field or in integers.  A polynomial with coefficients in a certain field or in integers is expressed as the product of irreducible factors with coefficients in the same domain in mathematics and computer algebra, which is known as polynomial factorization.  A polynomial can be expressed as the product of its factors, where the components must have a degree that is less than or equal to the original polynomial.

The equation is given as:

x^2  + 2 x - 48 = 0

Expand the equation

x^2 + 8x - 6x - 48 = 0

Factorize the equation

x(x + 8)- 6(x + 8)

Factor out x + 2

(x + 8)(x - 6) = 0

The above means that the factored equation of x^2 + 2x - 48 = 0 is (x + 8)(x - 6) = 0

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Answer:

d^2+15d+1

Step-by-step explanation:

group like terms

d^2+14d+d-4+5

simply like terms

d^2+15d+1

however, the answer is d^2+15d+1

According to the given information The highest 10% of the population's IQ is 0.0179.

The root of the variability in the given group as well as ungrouped data is referred to as the standard deviation. The standardized value is the value left after subtracting the mean and dividing by the standard deviation.

z =   (x- μ) / σ

x denotes the observations (a specific value that you are calculating the z-score for).

Mu(μ) is the mean.

Sigma(σ) denotes the standard deviation.

x = 131.5

μ = 200

σ = 15

So, when humans apply the values to the formula, we obtain,

=> z = 131.5 - 100 /15

=> z = 2 .10

Using table A-2, calculate the corresponding probability:

=> P(Z>2.10) = 1 − P(Z<2.10)

=> 1 − 0.9821

=> 0.0179

The top 10% of the population has a required IQ of 0.0179.

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Answer:

x<4

Step-by-step explanation:

Hello,

[tex]2x - 2 < 6[/tex]

[tex]2x < 6 + 2[/tex]

[tex]2x < 8[/tex]

[tex] \frac{2x}{2} < \frac{8}{2} [/tex]

[tex]x < 4[/tex]