Question

31) Find the sum in scientific notation, and then write the answer in standard form.

(3.49x10^-2)+(4.39×10^-2)


32) Find the difference in scientific notation, and then write the answer in standard form
(8.75×10^-8)-(3.75×10^-8)

Answer 1

Sum: (3.49x10^-2) + (4.39x10^-2) = 7.88x10^-2

In standard form, this can be written as 0.0788.

Difference: (8.75x10^-8) - (3.75x10^-8) = 5x10^-8

In standard form, this can be written as 0.00000005.

Explanation: