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4 years ago

A cone has a diameter of 18 inches. and a height of 14 inches. What is the volume of the cone?

1 answer:

5 0

Volume of cone is (1/3)π r² h.

So since diameter is 18 inches, radius is 9 inches, right?

So just plug in values and calculate;

V = (1/3)·π·9²·14
= 378π
≈ 1187.52

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3 years ago

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Paula made this model to show the sum of two mixed numbers. Write the addition equation shown by the model and solve it.

kipiarov [429]

Answer:

$3\frac{2}{3} + 2\frac{2}{3} = 6\frac{1}{3}$

Step-by-step explanation:

Given

See attachment for number line

Required

Determine the model

From the attachment, we can see that each partition is 1/3

The gray rectangle covers 11 partitions.

So:

$Gray = 11 * \frac{1}{3}$

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The black rectangle covers 8 partitions

So:

$Black= 8 * \frac{1}{3}$

$Black= \frac{8}{3}$

Express as a mixed number

$Black= 2\frac{2}{3}$

So, the model is:

$Gray + Black = Total$

Where Total is the point where the black rectangle stops

$3\frac{2}{3} + 2\frac{2}{3} = 6\frac{1}{3}$

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3 years ago

What is m∠N?<br> A. 19°<br> B. 68°<br> C. 95°<br> D. 112°

Gennadij [26K]

It would be B. 68

I hope this help!

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3 years ago

Factor as the product of two binomials x^2+3x+2

zhuklara [117]

Answer:

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3 years ago