2 years ago

1. Which expression is equivalent to 8 - 3?

Mathematics

1 answer:

m_a_m_a [10]2 years ago

3 0

Answer:

8-(-3)=8+3

This is because the two negatives cancel out.

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The answer is An=9n^2+7

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2 years ago

Simplify 2x + 2y - x + 4 - 1 + 3x + 2y + 7

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Add all the like terms together
4x+4y+10

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Debbie buys a tree for the holidays. She would like to determine the amount of space it will take up in her living room. The tre

Rina8888 [55]

Answer:

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Step-by-step explanation:

Volume of a cone is given by the formula $V=\frac{1}{3}\pi r^2 h$

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2 years ago

A small plane is flying a banner in the shape of a rectangle. The area of the banner is 144 square feet . The width of the banne

Margarita [4]

Answer:

The answer to your question is width = 6 ft; length = 24 ft

Step-by-step explanation:

Data

Area = 144 ft²

width = w

length = l

The width is 1/4 of the length

Formula

Area = width x length = w x l

Length = 4 width l = 4w

Process

1.- Substitute length in the first equation

Area = w(4w)

Simplify

Area = 4w²

2.- Solve for w

w = $\sqrt{\frac{Area}{4}}$

Substitution

w = $\sqrt{\frac{144}{4}}$

Simplification

w = $\sqrt{36}$

Result

w = 6 ft

3.- Find l

l = 4(6)

l = 24 ft

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3 years ago