Question

use 3.2x104 and 1.95 x 106 for steps a,b,c,d. Answers MUST be in correct scientific notation. show work

A. Add 3.2 x 104 and 1.95 x 106


B. Subtract 1.95 x 106 and 3.2 x 104


C. Multiply 3.2 x 104 and 1.95 x 106


D. Divide 1.95 x 106 and 3.2 x 104

Answer 1

A. 3.2 x 104 + 1.95 x 106 = (3.2 + 1.95) x 106 = 5.15 x 106

B. 1.95 x 106 - 3.2 x 104 = (1.95 - 0.032) x 106 = 1.918 x 106

C. 3.2 x 104 * 1.95 x 106 = (3.2 * 1.95) x (104 + 6) = 6.24 x 1010

D. 1.95 x 106 / 3.2 x 104 = (1.95 / 3.2) x (106 - 104) = 0.609375 x 102 = 6.09375 x 101