3 years ago

The length of a rectangle is four times it's width. If the perimeter of the rectangle is 90 ft, find its area

Mathematics

1 answer:

Allisa [31]3 years ago

4 0

Hope that helps alot :)

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creativ13 [48]

It is not a perfect square.

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3 years ago

Find the measure of A

iren2701 [21]

Answer:

20 degrees

Step-by-step explanation:

First, you need to figure out what x is by adding all of your information.

(5x-5)+(14x)+90=180

19x+85=180

19x=95

x=5

Then plug it into 5x-5 and you will get 20 degrees

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3 years ago

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EleoNora [17]

Answer:

Step-by-step explanation:

x^3y^5: x, x, x, y, y, y, y, y

x^4y^2: x, x, x, x, y, y

GCF: x^3y^2

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3 years ago

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Simplify <br> (-8y^2+6y-1)+(-8y^2+8y+1)(-3y^2+9y-9)

KonstantinChe [14]

Answer:

$24y^4-96y^3+133y^2-57y-10$

Step-by-step explanation:

Given expression

$(-8y^2+6y-1)+(-8y^2+8y+1)(-3y^2+9y-9)$

First, multiply two polynomials in brackets:

$(-8y^2+8y+1)(-3y^2+9y-9)\\ \\=24y^4-72y^3+72y^2-24y^3+72y^2-72y-3y^2+9y-9\\ \\=24y^4-96y^3+141y^2-63y-9$

No add two polynomials:

$-8y^2+6y-1+24y^4-96y^3+141y^2-63y-9\\ \\=24y^4-96y^3+133y^2-57y-10$

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2 years ago

Which graph shows a proportional relationship between x and y?

saul85 [17]

Answer:the last one

Step-by-step explanation:

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3 years ago