Question

Question #e9d48

Answer 1

`(0.41)^3" "=" "0.068921`

Explanation:

If you have a calculator it is as easy as pressing buttons. If not then by manual methods we have:

`color(purple)("This is a sort of cheat way that gets round the decimal point")`
Breaking this down into parts

`0.41 = 41/100 -> (0.41)^3 =(41/100)^3`

`(41)^3xx(1/100)^3=(41)^3xx1/1000000`

Cubing the 41

`" "41`
`ul(" "41) larr" multiply"`
`" "1640`
`ul(" "41) larr" add"`
`" "1681`
`ul(" "41) larr" multiply"`
`" "67240`
`ul(" "1681) larr" add"`
`" "68921`

Putting it all together:

`68921xx1/1000000 = 0.068921`