3 years ago

I NEED HELP ASAP!please

Mathematics

1 answer:

Alla [95]3 years ago

5 0

Answer:

Step-by-step explanation:

90 degree angles are angles with a 90 degree turn

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If f(x)=2x^3+4x^2,find f(-3) show all work

inn [45]

F(-3) = 2(-3)^3 + 4(-3)^2

f(-3) = 2(-27) + 4(9)

f(-3) = -54 + 36

f(-3) = -18

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3 years ago

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A rectangle has a perimeter of 2x^2+8x-10 the length of the rectangle is 3x-1. What is the width as an expression

4vir4ik [10]

Answer: The width is $x^{2}$ + 1x -4

Step-by-step explanation:

We know to find the perimeter we have to add the distance around the rectangle.The distance can also be sought as 2 times the length plus times the width.

So as a formula is like P = 2l + 2w where P is the perimeter.

We are given the perimeter so we can plot it into the formula and also plot in the length because it says the length is 3x -1

$2x^{2}$ +8x - 10 = 2(3x -1) + 2w Now we have to solve for w .Break it down

( $2x^{2}$ + 8x -10) = (6x -2 )+ 2w subtract 6x - 2 from both sides

( $2x^{2}$ + 8x -10) - (6x -2) = 2w

( $2x^{2}$ + 2x -8) = 2w now divide both sides by 2

$\frac{2x^{2} +2x-8 }{2} = w$ One the left side factor the numerator

$\frac{2(x^{2} +1x-4)}{2}$ = w Now multiply both sides by 2

w =( $x^{2}$ + 1x-4 )

The width is x^2 + 1x -4

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3 years ago

−4 x + 10 ≥ 5 x + 55

Andrew [12]

Answer:

Step-by-step explanation:

If I were to solve for x, the answer would be x ≤ − 5.

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Which statement best describes the function below? A. It fails the vertical line test

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Answer:

Step-by-step explanation:

that is the only thing there

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Jade uses 8 cups of flour to make 24 muffins at this rate how much flour will it take to make 30 muffins ?

mafiozo [28]

You will need 10 cups of flour

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