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2 years ago

PLEASE HELP!

Mathematics

1 answer:

Bumek [7]2 years ago

5 0

Answer:Yes.

Step-by-step explanation: Substitute either of the those values and you should get the other.

For instance, substituting x = 1 got you y = 5. If you had substituted x = 1 and got a different y-value, then the coordinates would have been incorrect.

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If the length of a rectangle is 2x + 4 and the width is x - 2. write

Bess [88]

Answer:

P = 6x +4

Step-by-step explanation:

Use the given values in the formula for the perimeter of a rectangle:

P = 2(L +W)

You have ...

L = 2x +4

W = x -2

So, the perimeter is ...

P = 2((2x +4) +(x -2)) = 2(3x +2)

P = 6x +4

The perimeter of the rectangle is 6x+4.

3 0

1 year ago

(Please help a sister out)!

MrRissso [65]

Answer:

Distributive

Step-by-step explanation:

when you distribute 3 to x, 3y, and 5, you get 3x+9y+15, which is equivalent to the other expression when you simplify it

5 0

3 years ago

Please help I will give brainliest

Oksi-84 [34.3K]

Answer:

-273c

Step-by-step explanation:

4 0

3 years ago

10. rhombus abcd has vertices at a(-2, 7), b(8, 7), c(2, -1), and d (-8, -1).

horrorfan [7]

Answer: 80

Step-by-step explanation:

We can use the formula $A=\frac{d_{1}d_{2}}{2}$ , where $d_{1}, d_{2}$ are the lengths of the diagonals.

By the distance formula,

$AC=\sqrt{(-2-2)^{2}+(-1-7)^{2}}=\sqrt{16+64}=4\sqrt{5}\\BD=\sqrt{(-8-8)^{2}+(-1-7)^{2}}=\sqrt{256+64}=8\sqrt{5}$

So, the area is $\frac{(4\sqrt{5})(8\sqrt{5})}{2}=\boxed{80}$

6 0

2 years ago

A circle has a diameter of 7.2. What is the circumference of the circle rounded to the near tenth of an inch

KATRIN_1 [288]

22.6is the answer check it first .
The formula of cicumfrance is
C= 2 x pi x r

8 0

2 years ago