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2 years ago

12

If the length of a rectangle is (x + 7) inches and the width is (3x+2) inches. Which expression represents the rectangle's area?

HINT: Area = width * length

1 answer:

konstantin123 [22]2 years ago

5 0

Answer:

The answer is no 1:

$3x ^{2} + 23x + 14$

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Find f(-2) if f(x) = x + x + 7. f(-2) =

Lynna [10]

Answer:

f(-2) = 9

Step-by-step explanation:

Given that,

f(x) = x² + x + 7

We need to find the value of f(-2).

Put x = -2 in the given function.

f(-2) = (-2)² + (-2) + 7

= 4-2+7

= 9

Hence, the value of f(-2) is equal to 9.

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2 years ago

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Dominik [7]

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122m^2

Step-by-step explanation:

Awnser is in picture along with steps

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motikmotik

Answer:

The radius of the sphere is $6\ cm$

Step-by-step explanation:

we know that

The volume of a sphere is equal to

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In this problem we have

$V=288\pi\ cm^{3}$

substitute and solve for r

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3 years ago

What the answer is ?

fgiga [73]

Answer:

A. 5 + 2.75 · S ≤ 21

Step-by-step explanation:

So we know that it has to be less than or equal to $21 because that's all she has to spend. So we can automatically rule out the equations with ≥ because that means greater than.

We can also rule out the equations that have 50 at the very end because that's just how far she wants to travel.

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2 years ago

Convert 30 feet per second to miles per minute.

konstantin123 [22]

30 feet per second x 60 = 1,800 feet per minute

1,800 feet per minute / 5280 = 0.34 miles per minute

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3 years ago