Express each number in decimal notation (i.e., express the number without using scientific notation).

(a) 3.22 × 107

(b) 7.2 ×10−3

(c) 1.18 ×1011

(d) 9.43 ×10−6

Solution 37P

Step 1:

To write in the decimal notation, we follow these rules :

1) If the exponent is positive, move the decimal to the right and write zeros in all the empty spaces created by moving the decimal.

2) If the exponent is negative, move the decimal to the left and write zeros in all the empty spaces created by moving the decimal.