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kaheart [24]
3 years ago
5

What is the volume of the cone

Mathematics
1 answer:
Irina-Kira [14]3 years ago
3 0
The formula for the volume of the cone is:

V =  \frac{1}{3}  \pi r^{2} h

Hence the answer is B.

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If a cup of coffee is at 90°C and a person with a body temperature of 36°C touches it, how will heat flow between them?
Alex777 [14]

Answer:

The answer is B (From the cup to the hand)

Step-by-step explanation:

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Remark
I take it that you want to know the ratio of the radii. If this is not correct, leave a comment below my answer.

You could do this by giving the spheres a definite volume, like 1 and 8 and then solve for r for one of them and then use the other sphere to find it's radius. It is not exactly the best way, and if you are going to to a physics class you want to be doing this using cancellation. 

Step One 
Set up the Ratio for the volumes.

\frac{V_1}{V_2} =  \frac{1}{8}

Step Two
Setup the equation for V1/V2 using the definition for a sphere. V = 4/3 pi r^3

\dfrac{1}{8} =  \frac{ \frac{4}{3} \pi( r_1)^3 }{ \frac{4}{3} \pi( r_2)^3 }

Step Three
Cancel the 4/3 and pi on the top and bottom of the fractions on the right.

You are left with 1/8 = (r1)^3/ (r2)^3

Step Four
Take the cube root of both sides.
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Step  Five
Answer
\frac{r_1}{r_2} =  \frac{1}{2}   Answer <<<<<<<
8 0
3 years ago
PLEASE HELP!!!! A boat can travel at an average speed of 10 miles per hour in still water. Traveling with the current, it can tr
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Answer:

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Step-by-step explanation:

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The answer is 2 mph

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Which two statements are true?
ANTONII [103]
I think that the answer that is highlighted in blue is correct. I am not sure for this one. But, “both the table and graph are proportional” seems correct.
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Answer:

;fdjjgddhkjfsfjihhkhff68g806t8e5f4s84d8r9dd85d9d95d659d659d6otduotco6tdoutcp6tco6tcoutcutoc

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