Question

Convert 145.0 mm to meters and express the answer to the correct number of significant digits.
a.
0.1450 m
b.
0.145 m
c.
145,000 m
d.
1.450 m


Please select the best answer from the choices provided

A
B
C
D

Answer 1

A

145.0 mm = 145.0 × 10^−3 m = 0.1450 m, and 145.0 mm has four significant figures so the meter value must be 0.1450 m.