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4 years ago

A right cone has a base radius of 7 centimeters and a height of 21 centimeters.

Mathematics

2 answers:

Alexxandr [17]4 years ago

8 0

Answer: The answer is A. 1077.0 cm3

Step-by-step explanation: I took the test and it was right other than that i don't have an explanation

kari74 [83]4 years ago

4 0

Volume of cone= 1/3πr²h
=1/3×3.14×49×21
=1077 cm² (approximate value)

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3 years ago

Why is it that -log(x+8)=4-log(x-7) has no solution? (they are log base 2)

Lerok [7]

$-log(x+8)=4-log(x-7)$

$-\log _{10}\left(x+8\right)+\log _{10}\left(x+8\right)=4-\log _{10}\left(x-7\right)+\log _{10}\left(x+8\right)$

$0=4-\log _{10}\left(x-7\right)+\log _{10}\left(x+8\right)$

$0+\log _{10}\left(x-7\right)=4-\log _{10}\left(x-7\right)+\log _{10}\left(x+8\right)+\log _{10}\left(x-7\right)$

$\log _{10}\left(x-7\right)=\log _{10}\left(x+8\right)+4$

$\log _{10}\left(x-7\right)=\log _{10}\left(x+8\right)+\log _{10}\left(10000\right)$

$x-7=\left(x+8\right)\cdot \:10000$

$\mathrm{Solve\:}\:x-7=\left(x+8\right)10000:\quad x=-\dfrac{26669}{3333}$

$\mathrm{Verifying\:Solutions}:\quad x=-\dfrac{26669}{3333}\space\mathrm{False}$

$\mathrm{No\:Solution\:for\:x\in \mathbb{R}}$

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3 years ago

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Plz help and no spam plz. A large university accepts 60% of the students who apply. Of the students the

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2,600 students actually enroll.

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3 years ago

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What is the slope of a line perpendicular to the line whose equation is 6x+2y=−32. Fully simplify your answer.

Reika [66]

The slope of the line that is perpendicular to 6x + 2y = -32 is: 1/3.

<h3>What is the Slope of Perpendicular Lines?</h3>

The slope of two lines that are perpendicular to each other will always have a product that is equal to -1, which means that their slopes are negative reciprocals to each other.

Rewrite 6x + 2y = -32 in slope-intercept form:

2y = -6x - 32

2y/2 = -6x/2 - 32/2

y = -3x - 16

The slope is -3. Negative reciprocal of -3 is 1/3.

Therefore, the slope of the perpendicular line would be: 1/3.

Learn more about the slope of perpendicular lines on:

brainly.com/question/1362601

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1 year ago

Solve.<br> X = -7<br> 4x - 4y = 12<br> (x,y)