Question

Two cells are viewed and measured under a microscope. The approximate diameter
of each cell is listed below.
• cell P: 5.0 x 10-4 meters
• cell Q: 3.0 x 10-6 meters
What is the approximate difference, in meters, between the diameter of cell P and
the diameter of cell Q?
A
B
c
D
2.0 x 10-5
2.0 x 10-4
4.7 x 10-5
4.7 x 10-4

Answer 1

Answer:

option D. 4.7 x 10-4 m

Step-by-step explanation:

The correct question is

• cell P: 5.0 x 10-4 meters

• cell Q: 3.0 x 10-5 meters

we have            

The diameter of cell P is  $5*10^{-4}\ m$

The diameter of cell Q is  $3*10^{-5}\ m$

Rewrite the diameter of cell P as    

$5*10^{-4}\ m=5*10^{-4}(\frac{10}{10})=50*10^{-5}\ m$

Find the difference

$50*10^{-5}\ m-3*10^{-5}\ m=47*10^{-5}\ m$

Rewrite the difference as

$47*10^{-5}\ m=47*10^{-5}}(\frac{10}{10})=4.7*10^{-4}\ m$