Pls help me ASAP PLS PLS PLS

Answer: 6

Step-by-step explanation:

The the scale factor being used to enlarge the photo is 6. Therefore, option B is the correct answer.

A scale factor is defined as the ratio between the scale of a given original object and a new object, which is its representation but of a different size (bigger or smaller).

The basic formula to find the scale factor of a figure is expressed as,

Scale factor = Dimensions of the new shape ÷ Dimensions of the original shape.

Given that, the photo below is being enlarged to form a 24- by 30-inch print.

In the figure, the dimensions are 4 inches and 5 inches.

Scale factor = 24/4 = 6

and 30/5 = 6

Therefore, option B is the correct answer.

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Answer:mode

Step-by-step explanation:5+4+9+9+3+75+1=mode

Answer:

D

Step-by-step explanation:

Mathematically, for us to have a right triangle, Pythagoras’ theorem must be obeyed

From the theorem, the square of the hypotenuse (longest side) equals the sum of the squares of the two other sides

Let us take a look at the given set of numbers:

2 square is not same as 1 squared + 1 squared

9 squared is not equal to 3 squares + 5 squared

7 squared is not equal to 4 squared + 3 squared

But;

root 2 squared equals 1 squared plus 1 squared and that is our answer

The cost of one banana is 3 cents.Given that Geeta buys x apples, x+7 oranges, and 2 1 x- bananas.The total number of pieces of fruit Geeta buys is 30.

(i) To find the number of apples Geeta buys, we need to form an equation based on the given information.x + x + 7 + 2(1 x-) = 30.Simplify and solve for xx + x + 7 + 2 - 2x = 30-x + 9 = 30x = 30 - 9x = 21.Therefore, the number of apples Geeta buys is 21.

(ii) Cost of 1 apple is 15 cents.Cost of 1 orange is 18 cents.The total cost of all the fruit is $5.55.Cost of 21 apples = 21 × 15 = 315 cents.Cost of (x + 7) oranges = (x + 7) × 18.Cost of 2 1 x- bananas = (2 1 x-) × y cents, where y is the cost of one banana.

Total cost = 315 + (x + 7) × 18 + (2 1 x-) × y= 555 cents.Equating the above equation, we get;315 + (x + 7) × 18 + (2 1 x-) × y= 555315 + 18x + 126 + 2y - 2x - y = 555.

Simplify the equation.16x + y = 114.Now, we need to find the value of y, which is the cost of 1 banana. Given that 21 bananas were already bought, and we need to find the cost of one banana only.

Therefore we need to subtract the cost of 21 bananas from the total cost of all fruit and then divide by the remaining number of bananas.114 - 2 1 x- × y = cost of bananas = (555 - 315 - 18x - 126) cents = 114 cents.Therefore, 2 1 x- × y = 114 - 21 × y y = 3.Hence, the cost of one banana is 3 cents.

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Answer:

Dan is correct

Step-by-step explanation:

Mean = the sum of all data values divided by the total number of data values

Number of adults in Sample A:

= 70 + 90 + 135 + 140 + 65 = 500

Mean of Sample A:

= [ (1 × 70) + (2 × 90) + (3 × 135) + (4 × 140) + (5 × 65) ] ÷ 500

= 1540 ÷ 500

= 3.08

Number of adults in Sample B:

= 80 + 80 + 130 + 135 + 75 = 500

Mean of Sample A:

= [ (1 × 80) + (2 × 80) + (3 × 130) + (4 × 135) + (5 × 75) ] ÷ 500

= 1545 ÷ 500

= 3.09

Mean of the two samples:

= (3.08 + 3.09) ÷ 2

= 3.085 hours

= 3 hours (nearest hour)

The mean of Sample A is 3.08 hours and the mean of Sample B is 3.09 hours, so the mean of the entire sample is 3.085 hours.  If we round this to the nearest hour, then the mean is 3 hours.  Therefore, Dan is correct in concluding that the adults spend a mean of 3 hours each day doing leisure and sports activities.  

Answer:

  (a)  15 -18i

Step-by-step explanation:

You want the simplified form of the expression -2i(5- i) + (17- 8i).

For many purposes, the value i in a complex number can be treated in the same way a variable would be treated. When simplifying an expression involving i, any instances of i² can be replaced with the real value -1.

  -2i(5- i) + (17- 8i) = -10i +2i² +17 -8i

  = -2 +17 +(-10 -8)i

  = 15 -18i

__

Additional comment

Your scientific or graphing calculator can probably help you evaluate such expressions.

Writing linear equations given two points can be a useful skill when graphing linear equations.

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I think it is 457.333333 π m3

Hope this helped :T

Answer:

1436.76

Step-by-step explanation.

\(\frac{4}{3}\pi r^{3}\)

that is the formula, with r being the radius.

then if you replace r with 7 that would be the answer.

pi, also equals 3.14159265359, or shortened 3.14.

so it would look like:

\(\frac{4}{3}*3.14*7^{3}\)

Answer: 75 Grapes

Step-by-step explanation:

14 grapes left + 39 grapes Ana ate + 22 grapes Xan ate = Original 75 grapes in the bag

Answer:

There were 75 grapes in the bag before the trip

Step-by-step explanation:

First, you will need to add up all the grapes that they ate.

39+22=61

Then, you need to add the left over grapes and the grapes that both of them ate all together.

61+14=75

So, they had 75 grapes in the bag before the trip.

Answer:

6) B

7) D

8) C

9) A

Step by step explanation:

6) Brand A sold 12 notebooks

Brand B sold 28 notebooks

7)

8) 30 pieces of 100-peso bills

10 pieces of 50-peso bills

9) 4 packages have 2 pieces

6 packages have 3 pieces.

Answer:

(6,3)

Step-by-step explanation:

Regression with one predictor variable, also known as simple regression, is a statistical method that aims to establish a relationship between a dependent variable and one independent variable.True statement about regression with one predictor variable is that the standardized regression coefficient, beta, has the same value as r.

In this type of regression, the standardized regression coefficient, beta, is equivalent to the estimated correlation coefficient, r.

Therefore, the statement that the standardized regression coefficient, beta, has the same value as r is true.
The total squared error divided by its degrees of freedom gives the mean squared error, which is the average amount of error in the regression model. The square root of the mean squared error is the standard error of estimate. The statement that the total squared error divided by its degrees of freedom is the square of the standard error of estimate is false. Rather, it is the mean squared error that is the square of the standard error of estimate.
The slope, b, of the regression equation is the change in the dependent variable associated with a unit change in the independent variable. The estimated correlation coefficient, r, is the degree to which the two variables are linearly related. The statement that the slope, b, of the regression equation has the same value as r, the estimated correlation is false. Therefore, the only true statement about regression with one predictor variable is that the standardized regression coefficient, beta, has the same value as r, the estimated correlation.

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Answer:

??????.

Step-by-step explanation:

????????????????

Answer:

110

Step-by-step explanation:

10% of 100 is 10

100+10=110

Answer:

\({ \tt{2 {x}^{2} + 10x + 8 }} \\ { \tt{ = (x + 1)(x + 4)}}\)

Answer:

A. 2 ( x + 4 )( x + 1 )

Step-by-step explanation:

2x² + 10x + 8

factor out 2 from the equation

2 ( x² + 5 x + 4 )

write 5x as a sum and rewrite the expression

2 ( x² + 4x + x + 4 )

factor out x from the equation

2 ( x ( x + 4 ) + x + 4 )

factor out x + 4 from the equation

2 ( x + 4 ) ( x + 1 )

Answer:

2

Step-by-step explanation:

Answer:3:40 ratio

Step-by-step explanation:

Δy=v-0.32 and dy = -0.32 .Δy and dy are both used to represent changes in the dependent variable y based on changes in the independent variable x.

Δy represents the change in y (the dependent variable) resulting from a specific change in x (the independent variable). In this case, y = x^4 + 7, x = -2, and Δx = dx = 0.01. Therefore, we need to calculate Δy and dy based on these values.

To calculate Δy, we substitute the given values into the derivative of the function and multiply it by Δx. The derivative of y = x^4 + 7 is dy/dx = 4x^3. Plugging in x = -2, we have dy/dx = 4(-2)^3 = -32. Now, we can calculate Δy by multiplying dy/dx with Δx: Δy = dy/dx * Δx = -32 * 0.01 = -0.32.

On the other hand, dy represents an infinitesimally small change in y due to an infinitesimally small change in x. It is calculated using the derivative of the function with respect to x. In this case, dy = dy/dx * dx = 4x^3 * dx = 4(-2)^3 * 0.01 = -0.32.

Therefore, both Δy and dy in this context have the same value of -0.32. They represent the change in y corresponding to the change in x, but Δy considers a specific change (Δx), while dy represents an infinitesimally small change (dx) based on the derivative of the function.

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Answer:

12x -7

Step-by-step explanation:

Answer:

Step-by-step explanation:

rate of change is essentially slope

\(Rate Of Change = \frac{rise}{run}\)              or

\(Rate Of Change = \frac{y_{2} -y_{1} }{x_{2} -x_{1} }\)          or

\(Rate Of Change = \frac{f(x_{2})- f(x_{1}) }{x_{2} -x_{1} }\)

Answer:

1 False

2 True

3 False

4 True

5 False (statement is missing)

6 False

7 True

8 True

Here is the correct answer in LaTeX code:

The correct answer is \($B\). \(R_n(x) = (-2)^{n+1} e^{-2c} (n+1)!$.\) The remainder term, \($R_n(x)$\) , in the \($n$th\) order Taylor polynomial for the function \($f(x) = e^{-2x}$\) centered at \($a = -2$\) is given by the formula:

\(\[R_n(x) = \frac{f^{(n+1)}(c) \cdot (x-a)^{n+1}}{(n+1)!}\]\)

where \($c$\) is a value between \($x$\) and \($a$\). In this case, \($a = -2$.\)

Taking the derivative of \($f(x) = e^{-2x}$\) , we have

\($f'(x) = -2e^{-2x}$, $f''(x) = 4e^{-2x}$, $f'''(x) = -8e^{-2x}$\) , and so on.

Substituting these derivatives into the remainder term formula, we get:

\(\[R_n(x) = (-2)^{n+1} e^{-2c} (n+1)! \cdot (x-(-2))^{n+1} / (n+1)!\]\)

Simplifying, we have:

\(\[R_n(x) = (-2)^{n+1} e^{-2c} \cdot (x+2)^{n+1}\]\)

So, the correct answer is \($B\). \(R_n(x) = (-2)^{n+1} e^{-2c} (n+1)!$.\)

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Answer:

2

Step-by-step explanation:

The line goes up 2 units and to the right 1 unit.

Answer:

Could you post the question in the comments?

Step-by-step explanation:

Hey there!☺

\(Answer:\boxed{1\frac{7}{10}}\)

\(Explanation:\)

\(3\frac{1}{2}-1\frac{4}{5}\)

Subtract the two fractions:

\(3\frac{1}{2}-1\frac{4}{5}=\frac{17}{10}\)

To get the final answer, you will have to simplify 17/10:

\(\frac{17}{10}=1\frac{7}{10}\)

1 7/10 is your answer.

Hope this helps!☺

180 deg rotation about the origin and a translation 2 units left

The answer is (B) 1/e.

To find the absolute maximum value of f(x) = ln(x)/x, we need to find the critical points and endpoints of the function and then evaluate f(x) at these points to determine the maximum value.

First, we find the derivative of f(x):

f'(x) = (1/\(x^2\)) * (xln(x) - 1)

Setting f'(x) = 0, we get:

xln(x) - 1 = 0

Solving for x, we get:

x = 1/e

Since f(x) is only defined for x > 0, the only critical point is x = 1/e.

Next, we evaluate f(x) at the critical point and at the endpoints of the domain of the function:

f(1/e) = ln(1/e)/(1/e) = -1/e

f(0+) = lim(x→0+) ln(x)/x = lim(x→0+) (1/x) / 1 = ∞

f(∞) = lim(x→∞) ln(x)/x = lim(x→∞) (1/x) / (1/x) = 1

Since f(x) approaches infinity as x approaches 0+, and f(x) approaches 1 as x approaches infinity, the absolute maximum value of f(x) occurs at x = 1/e, and the maximum value is f(1/e) = -1/e.

Therefore, the answer is (B) 1/e.

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