Two cells are viewed and measured under a microscope. The approximate diameter of each cell is listed.

Question

Cell P: 5.0×10−4
m

Cell Q: 3.0×10−5
m


What is the difference in the diameters of the two cells?

(1 point)
Responses

0.002 m
0.002 m

0.047 m
0.047 m

0.05 m
0.05 m

0.00047 m

Answer 1

To find the difference in the diameters of the two cells, we subtract the diameter of Cell Q from the diameter of Cell P.

Cell P: \( 5.0 \times 10^{-4} , \text{m} \)

Cell Q: \( 3.0 \times 10^{-5} , \text{m} \)

Now we need to perform the subtraction:

1. Convert \( 3.0 \times 10^{-5} , \text{m} \) to a comparable power of 10: \( 3.0 \times 10^{-5} , \text{m} = 0.00003 , \text{m} \)

2. To make the subtraction easier, we can express both in the same exponent: \( 5.0 \times 10^{-4} = 0.0005 , \text{m} \)

Now we can subtract: \[ 0.0005 , \text{m} - 0.00003 , \text{m} = 0.00047 , \text{m} \]

Thus, the difference in the diameters of the two cells is \( 0.00047 , \text{m} \).

So, the correct response is:

0.00047 m