Question

A tape dispenser holds 1.14×10 to the power of 4 mm of tape that is 12.7 mm wide. Multiply the two numbers to find the total area in square millimeters of tape. Write the product in scientific notation.
Responses

a. 1.4478×10 to the power of 5 mm2
b. 14.478×10 to the power of 4 mm2
c. 14.478×10 to the power of 5 mm2
d. 1.4478×10 to the power of 4 mm2

Answer 1

Multiply: 1.14 × 12.7 = 14.478, so area = 14.478 × 10^4 mm^2. Convert to proper scientific notation: 1.4478 × 10^5 mm^2.

Answer: a.