The normal range for a white blood cell count is 4,000 cells/?l to 18,000 cells/?l. Write these numbers in scientific notation.
A) 4 × 10 $3$ cells/?l to 1.8 × 10 $5$ cells/?l
B) 4 × 1 $3$ 0 $4$ cells/?l to 1.8 × 10 $4$ cells/?l
C) 4 × 10 $5$ cells/?l to 1.8 × 10 $3$ cells/?l
D) 4 × 10 $3$ cells/?l to 1.8 × 10 $4$ cells/?l
E) 4 × 10 $4$ cells/?l to 1.8 ×
10 $3$ cells/?l

Question

The normal range for a white blood cell count is 4,000 cells/?l to 18,000 cells/?l. Write these numbers in scientific notation.
A) 4 ×  10 $3$ cells/?l to 1.8 × 10 $5$ cells/?l
B) 4 × 1 $3$ 0 $4$ cells/?l to 1.8 × 10 $4$ cells/?l
C) 4 × 10 $5$ cells/?l to 1.8 × 10 $3$ cells/?l
D) 4 × 10 $3$ cells/?l to 1.8 × 10 $4$ cells/?l
E) 4 × 10 $4$ cells/?l to 1.8 ×
 10 $3$ cells/?l

Quizplus · Accepted Answer

4,000 is 4 × 10^3 and 18,000 is 1.8 × 10^4 in scientific notation.

The Normal Range for a White Blood Cell Count Is 333

The Normal Range for a White Blood Cell Count Is $3$