Question

In scientific notation, 3.0 x 10-5 + 0.0000022 =

A) 3.5 x 10-5
B) 3.22 x 10-5
C) 5.2 x 10-6
D) 3.5 x 10-6
E) 5.2 x 10-11
@PANTIEPOWER please help @_@

Answer 1

Use order of operation to evaluate multiplication and division first from left to right 9 ÷ 3 · 2 = 6
Insert the result in the whole expression 72 - 6 + 2
Evaluate addition and subtraction from left to right to obtain final value of expression 72 - 6 + 2 = 68

Answer 2

wut? `