Question

The following are possible ways to express the quantity 0.391 (Give ALL correct answers, i.e., B, AC, BCD...) Note: 3.45E-8 is a way you can enter the number 3.45×10-8 in most computers. A) 0.000391E4 B) 39.1 x 10-1 C) 0.391E+1 D) 3.91E-1 E) 0.0391E+1 F) 0.00391 x 102

Answer 1

To answer, evaluate the power of 10 in the given choices. If it is positve, move the decimal n places to the right. If it is negative, move the decimal n corresponding places to the left. From all the choices given, only the choices D, E, and F will give us the correct answer.