Question

Compute. Round your answer to match the least precise measurement. 31.7 m 18 m a. 13 m c. 13.70 m b. 13.7 m d. 14 m

Answer 1

d

Answer 2

your question is unclear, I just "guess" 31.7 - 18 = 13.7 . Since it is addition, the result follow the least significant figure number rule. It's 18 ( 2 significant figures). Therefore, your result is 13 or 14 only ( 2 significant figures) . However, the result is 13.7, that 7 makes your number is rounded to 14.

Answer 3

it is Find each product or quotient. Use significant digits.

0.405 m × 553 m

a.
224 m2
b.
223.97 m2
c.
223.965 m2
d.
223.9m2

Answer 4

To product or quotient, the rule of result is that: follow the least number of digit AFTER decimal point.
Yours is 0.405 * 553 = 223.965