3 years ago

Answer 10 points!!! hurry

Mathematics

1 answer:

Reil [10]3 years ago

5 0

Answer:

Height: 7 centimeters

Base: 42 centimeters

Step-by-step explanation:

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Evaluate the expression w² - v + 1 for w = -2 and v = -8.

kaheart [24]

Answer:

Step-by-step explanation:

-2(-2) - (-8) + 1

4 + 8 + 1 = 13

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3 years ago

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Which system of equations is equivalent to the system of equations shown?

Ivanshal [37]

<span>I can solve for x and y
A) 2x - 4y = 12
A) 2x = 4y + 12
A) x = 2y + 6
Substituting into B
B) 3* (2y +6) - 5y = 20
B) 6y + 18 -5y = 20
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B) x = 10

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3 years ago

Find the volume of the sphere shown to the right. Give an answer in terms of pi and rounded to the nearest cubic unit.

Vladimir [108]

The correct answers are:
Exact volume = $V = \frac{32}{3} \pi$ in^3
Approximate volume = V = 33.51 in^3

Explanation:

The volume of the sphere is: $V = \frac{4}{3} \pi r^3$

Since r = 2 in

Hence
$V = \frac{4}{3} \pi (2)^3 \\ V = \frac{32}{3} \pi$ in^3 (exact)
V = 33.51 in^3 (approximate)

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3 years ago

2/5 (x-4) =2x. Solve for x

Bess [88]

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the ratio of white pens to green pens is 2 to 8. how many green pens are there if there are 18 white pens?

NISA [10]

There are 72 green pens.

There is 9 times as many white pens from 2 to 18, so there has to be 9 times as many green pens because of the ratio. 9 times 8 is 72.

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3 years ago