Question

A rectangle has a length of the cube root of 81 inches and a width of 3 to the 2 over 3 power inches. Find the area of the rectangle.
A 3 to the 2 over 3 power inches squared
B 3 to the 8 over 3 power inches squared
C 9 inches squared
D9 to the 2 over 3 power inches squared

I think it's C but I'm not really sure. Can someone explain to me?

Answer 1

the formula for area is length x width

Answer 2

@egbeach I know that... but I just don't get how u simply the thing

Answer 3

\[\sqrt[3]{81} \times 3^{\frac{ 2 }{ 3 }}\]

Answer 4

thats the equation right?

Answer 5

Yes

Answer 6

well whats \[\sqrt[3]{81}\]

Answer 7

81 and one third

Answer 8

\[81^{\frac{ 1 }{ 3}}\times 3^{\frac{ 2 }{ 3}}\]

Answer 9

are you able to solve that?

Answer 10

Um er a moment

Answer 11

it should work if you plug it into a calculator correctly

Answer 12

54???

Answer 13

ummm no... the answer is actually 9 so you were right

Answer 14

Oh then... I'll check again... Just confused

Answer 15

ok