Question

The size of a cell is typically found by capturing an image under a microscope then using software to measure its diameter. Two cells are measured using this method:
Cell C: 4, point, 1, 6, times, 10, to the power minus 24.16×10
−2
centimeters
Cell D: 9, point, 5, times, 10, to the power minus 49.5×10
−4
centimeters
How much larger is the diameter of cell C than the diameter of cell D? Express your answer using scientific notation.

Answer
Attempt 2 out of 2

Answer:
times, 10×10
centimeters

Answer 1

Interpreting the measurements as C = 4.16×10⁻² cm and D = 9.5×10⁻⁴ cm, the ratio is

(4.16×10⁻²) / (9.5×10⁻⁴) = (4.16/9.5) × 10² = 4.3789… × 10¹.

So cell C is about 4.38 × 10¹ times larger than cell D.