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Vadim26 [7]
2 years ago
14

The perimeter of the first rectangle below is 120 inches. The perimeter of the second rectangle is 180 inches. What are the valu

es of x and v?
A. x = 6; v = 42
B. x = 13; v = 42
C. x = 42; v = 6
D. x = 48; v = 28

Mathematics
2 answers:
8_murik_8 [283]2 years ago
5 0

Answer:

A

Step-by-step explanation:

gladu [14]2 years ago
5 0

Answer:

A. x = 6; v = 42

Step-by-step explanation:

Strategy : Guess and Check

Let's start with A:

If x = 6, then the first rectangle would be 12 + 42 + 6  + 12 + 42 + 6 = 120

Let's see if this checks out with the second rectangle.

6 + 42 + 42 +  6 + 42 + 42 = 180

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skelet666 [1.2K]
I don't know for a fact but I think k=1.125
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3 years ago
Use the Pythagorean theorem to obtain the function​ D(x) for the length of the diagonal of a double square of width x.
Yuri [45]

Answer:

D(x)= x\sqrt{2}

Step-by-step explanation:

Given

Side = x

Required

Represent the diagonal as a function

Using Pythagoras theorem, the diagonal is:

D^2= Side^2 + Side^2

Substitute x for Side

D^2= x^2 + x^2

D^2= 2x^2

Take the square root of both sides

D= \sqrt{2x^2

Split

D= \sqrt{2} * \sqrt{x^2

D= \sqrt{2} * x

D= x\sqrt{2}

Express as a function.

D(x)= x\sqrt{2}

4 0
3 years ago
Write a formula for function h in terms of function f.<br> h(x)=
kati45 [8]

Answer:

  • h(x) = f(x + 12) - 4

Step-by-step explanation:

According to the graph, the function h(x) is the translation of the function f(x) to the right and down.

Compare the coordinates of the vertices to write the formula

  • (- 6, 11) → (6, 7)
  • x = 6 - (-6) = 12
  • y = 7 - 11 = - 4

The formula is

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7 0
2 years ago
Please help asap!!!!!!!!
qaws [65]

Answer:

The answer to your question is:

16.- x = -6

17.- x = -4; x = 2

18.- x = -5

Step-by-step explanation:

16.-   \frac{x + 6}{x - 4} = 0

       x + 6 = 0(x - 4)

       x + 6 = 0

      x = - 6

17.- \frac{(x + 4)(x - 2)}{(x + 6)} = 0

      (x + 4) (x - 2) = 0)(x + 6)

      (x + 4)(x - 2) = 0

      x + 4 = 0             x - 2 = 0

     x = - 4                  x = 2

18.- \frac{2x + 10}{3x - 12} = 0

                    2x + 10 = 0(3x - 12)

                    2x + 10 = 0

                    2x = - 10

                      x = - 10/2

                      x = -5

6 0
3 years ago
F(x)=-4+7, what is f(2)
forsale [732]

Answer:

3

Step-by-step explanation:

7-4

8 0
2 years ago
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