Question

Work out cube root of 512 : reciprocal of 0.4. Give your answer in the form n : 1

Answer 1

To find the cube root of 512 and the reciprocal of 0.4, raise 512 to the power of 1/3 and divide 1 by 0.4. Finally, divide the cube root by the reciprocal to get the answer in the form n : 1.

Step-by-step explanation:

To find the cube root of 512, we can use the fact that the fourth root is the same as raising it to the power of 1/4. The cube root can be found by raising 512 to the power of 1/3:

512^(1/3) = 8

To find the reciprocal of 0.4, we can divide 1 by 0.4:

1 / 0.4 = 2.5

Finally, we can express the answer in the form n : 1 by dividing the cube root of 512 by the reciprocal of 0.4:

8 / 2.5 = 3.2 : 1

Answer 2

Step-by-step explanation:

Thanks, so cube root of 512 is 8 and reciprocal of 0.4 is 2.5 then:

8 : 2.5 / divide both by 2.5 to get:

3.2 : 1 that's my answer right?