Question

Juan is determining the volume of a box using the expression 7.2*8.4*12.8 how many digits will be shown to the right of the decimal in juan final answer

Answer 1

Answer:

Juan will have 3 digits after decimal.

Step-by-step explanation:

A number having one digit after decimal when multiplied by another number having single digit after decimal, we get a number having two digits after decimal.

Example:

0.2 × 0.6 = 0.12

0.3 × 0.3 = 0.09

Now we have to find the volume of a box having dimensions 7.2 units by 8.4 units by 12.8 units.

Volume = 7.2×8.4×12.8 [Each number having one digit after decimal]

             = 774.144 unit³ [Number with 3 digits after decimal]

Therefore, Juan will have 3 digits after decimal in the final answer.