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3 years ago

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The height of a cone is two times its base diameter. What is the volume of the cone in terms of its base radius r?

1 answer:

nydimaria [60]3 years ago

5 0

Volume of the cone = (1/3) pi r^2 h

h = 2r so substituting for h:-

V = (1/3) pi r^2 * 2r

V = (2/3) pi r^3

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ad-work [718]

For this case what you can do is the following rule of three:
m ---> 100%
x ----> 115%
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x = (115/100) * (m)
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Answer:
a simplified expression to represent the number of members this year is:
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4 0

3 years ago

5/12 - 2/5 in fraction form

fgiga [73]

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3 years ago

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Please help with 11c!?

Contact [7]

Answer:

"To the nearest year, it would be about 9 years"

Step-by-step explanation:

11c)

This is compound growth problem. It goes by the formula:

$F=P(1+r)^t$

Where

F is the future amount

P is the present (initial) amount

r is the rate of growth, in decimal

t is the time in years

Given,

P = 20,000

r = 8% = 8/100 = 0.08

F = double of initial amount = 2 * 20,000 = 40,000

We need to find t:

$F=P(1+r)^t\\40,000=20,000(1+0.08)^t\\2=(1.08)^t$

To solve exponentials, we can take Natural Log (Ln) of both sides:

$2=(1.08)^t\\Ln(2)=Ln((1.08)^t)$

Using the rule shown below we can simplify and solve:

$Ln(a^b)=bLn(a)$

We can write:

$Ln(2)=Ln((1.08)^t)\\Ln(2)=tLn(1.08)\\t=\frac{Ln(2)}{Ln(1.08)}\\t=9.0064$

To the nearest year, that would be about 9 years

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3 years ago

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trapecia [35]

Answer:

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3 years ago

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astra-53 [7]

Answer:

<em>1</em><em>2</em>

Step-by-step explanation:

<em>here's</em><em> your</em><em> solution</em>

<em>=</em><em>></em><em> </em><em>area </em><em>of </em><em>rectangle</em><em> </em><em>=</em><em> </em><em>length</em><em>*</em><em>width</em>

<em>=</em><em>></em><em> </em><em>area </em><em>4</em><em>*</em><em>3</em><em> </em><em>=</em><em> </em><em>1</em><em>2</em><em>.</em><em>s</em><em>q</em><em>u</em><em>n</em><em>i</em><em>t</em>

<em>=</em><em>></em><em> </em><em>area </em><em>of </em><em>square</em><em> </em><em>=</em><em> </em><em>side^</em><em>2</em><em> </em>

<em>=</em><em>></em><em> </em><em>area </em><em>=</em><em> </em><em>1</em><em>.</em><em>s</em><em>q</em><em>u</em><em>n</em><em>i</em><em>t</em>

<em>=</em><em>></em><em> </em><em>Number</em><em> of</em><em> </em><em>square</em><em> </em><em>=</em><em> </em><em>area</em><em> of</em><em> rectangle</em><em>/</em><em>area</em><em> of</em><em> </em><em>square</em><em> </em>

<em>=</em><em>></em><em> </em><em>n</em><em>o </em><em>of </em><em>square</em><em> </em><em>=</em><em> </em><em>1</em><em>2</em><em>/</em><em>1</em>

<em> </em><em> </em><em>=</em><em>></em><em>. </em><em>1</em><em>2</em><em> </em>

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3 years ago