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Rashid [163]
3 years ago
14

ΔDEF with vertices D(2, 5), E(6, 4), and F(3, 3), is reflected across the line y=x. A student determined one of the vertices on

the image to be (2, –5). Evaluate the student’s answer.
A. The student performed the reflection correctly.
B. The student incorrectly reflected across over the x-axis.
C. The student incorrectly reflected across the y-axis.
D. The student incorrectly reflected across the line y = –x.

Please select the best answer from the choices provided

ANSWER:  B. The student incorrectly reflected across over the x-axis.
Mathematics
1 answer:
antoniya [11.8K]3 years ago
7 0
The answer would be D
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The first one..

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Jenny thinks that the expression below is equal to x²-4. If you agree, show that she is correct. If you disagree, show that she
sergiy2304 [10]

Answer:

Jenny is wrong the correct answer is x²+ 4 - 4 x.

Step-by-step explanation:

Given that

(x-2)³∕x-2

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(x-2)³∕(x-2) = (x-2)²

As we know that

(a-b)² = a²+b² - 2 ab

So

(x-2)² = x²+ 2² - 2 ˣ 2 ˣ x =  x²+ 4 - 4 x

(x-2)² =  x²+ 4 - 4 x

It means that

(x-2)³∕(x-2) = (x-2)² =  x²+ 4 - 4 x

So Jenny is wrong the correct answer is x²+ 4 - 4 x.

8 0
3 years ago
Peter's dad is 60, which is four times as old as peter. Write an equation that can be used to find peter's age. Then solve the e
MrRissso [65]

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20

Step-by-step explanation:

4 0
3 years ago
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Veronica is choosing between two health clubs. After how many months will the total cost for each health club be the​ same? Yoga
sergiy2304 [10]

Answer:

14.02

Step-by-step explanation:

You'd have to write equations for the price per month for each club.

Let  x  equal the number of months of membership, and  y  equal the total cost.

Club A's is  y = 24x + 21.50 and Club B's is  y = 17.25 x + 41.00 Because we know that the prices,  y , would be equal, we can set the two equations equal to each other.

24x + 21.50 =17.25 x+ 41.00

subtract 21.50 both sides

. We can now solve for  x  by isolating the variable.

24x=17.25x+19.5

divide 17.25x

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divide 1.39 both sides

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After five months, the total cost would be the same.

4 0
3 years ago
A cylinder has height of 7 inches and a base with a diameter of 9 inches.
bekas [8.4K]

Answer:

527.6 cubic inches

Step-by-step explanation:

The volume of a cylinder is represented by the formula V = \pi r^{2} h, where r represents the radius of the base and h represents the height.

In this question, the diameter is given as 9 inches. Since the radius is half the diameter, the radius will be 4.5 inches.

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The Volume will be 527.6 cubic inches

6 0
3 years ago
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