Question

4/3 * 3.14 * 64 I can not figure this out the problem is http://puu.sh/7kb8H.png Can anyone help?

Answer 1

what did you get?

Answer 2

200.96

Answer 3

hmm \(\bf \textit{volume of a sphere}=\cfrac{4\pi {\color{blue}{ r}}^3}{3}\qquad {\color{blue}{ r}}=4\implies \cfrac{4\pi ({\color{blue}{ 4}})^3}{3}
\\ \quad \\
\cfrac{4\cdot 3.14 \cdot {\color{blue}{ 64}}}{3}\) what about for that one?

Answer 4

That seems to be right besides that fact that you are dividing everything by 3 It does not show that here as part of the formula

Answer 5

So where did I go wrong?

Answer 6

\(\bf \cfrac{a}{b}\cdot whatever\implies \cfrac{a\cdot whatever}{b}\)

Answer 7

or you can say \(\bf \cfrac{a}{b}\cdot whatever\implies \cfrac{a}{b}\cdot\cfrac{whatever}{1}\implies \cfrac{a\cdot whatever}{b\cdot 1}\)

Answer 8

Okay but can you tell me what you got?

Answer 9

Im obviously confused and this isnt really helping sine I still dont know the answer. If I knew it I could go back and see where I went wrong.

Answer 10

\(\bf \cfrac{4\cdot 3.14 \cdot {\color{blue}{ 64}}}{3}=267.94666666666666666667
\)

Answer 11

Wow thans I see now

Answer 12

So I take the 3 from the 3/4?

Answer 13

hmm you mean 4/3?
the denominator ends up at the bottom of all other factors

Answer 14

Oh yes sorry the 4/3. Wow okay thanks I see now

Answer 15

keep in mind that \(\bf \cfrac{a}{b}\cdot u\cdot x\cdot z\implies \cfrac{a}{b}\cdot\cfrac{u}{1}\cdot \cfrac{x}{1}\cdot \cfrac{z}{1}\implies \cfrac{a\cdot u\cdot x\cdot z}{b\cdot 1\cdot 1\cdot 1}\implies
\cfrac{a\cdot u\cdot x\cdot z}{b}\)

Answer 16

Thanks I Will man you really just helped me through this section with that simple tip.. My teacher couldnt even do that.

Answer 17

yw