3 years ago

Multiply the following polynomials (5x^2-7)(5x^2+7)

Mathematics

1 answer:

Ahat [919]3 years ago

4 0

Answer:

25x^4 + 35x^2 - 35x^2 - 49

25x^4 - 49

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xeze [42]

Answer:

2 inches per hour

Step-by-step explanation:

2 1/2 hours is equivalent to 150 minutes.

Set up a proportion; let x equal inches of rain

$\frac{5}{150}$ = $\frac{x}{60}$

Cross multiply -> 150x=300

Divide both sides by 150 to get -> x=2

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3 years ago

Megan has a large packing box shaped as a cube with a volume of 216 cubic feet.

Flura [38]

Answer:

s = 6 feet

Step-by-step explanation:

Given that,

The volume of the cube, V = 216 feet³

We need to find the side length for the cubical box. We know that the volume of the cube is given by :

$V=s^3$ , s is the side length of the box.

So,

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3 years ago

H(a) = a^2 + 3a; Find h(-10)

Colt1911 [192]

H(-10)=70
because when you input -10 in for each a, it will equal 70

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3 years ago

using the giving information to write an equation. let X represent the number described in the exercise.then solve the equation

ANEK [815]

A number is multiplied by 8 and the result is 28.

A number= x.

8(x)= 28

Divide both sides by 8.

28/8= 3.5

x= 3.5

I hope this helps!
~kaikers

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shusha [124]

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