Question

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

Cell P: 5.0×10
−4
m

Cell Q: 3.0×10
−5
m

Which expression would you use to find the difference between the two diameters?

(1 point)

(3.0×10
−5
)(5.0×10
−4
)

(5.0×10
−4
)(3.0×10
−5
)

(3.0×10
−5
)÷(5.0×10
−4
)

(5.0×10
−4
)÷(3.0×10
−5
)

(3.0×10
−5
)−(5.0×10
−4
)

(5.0×10
−4
)−(3.0×10
−5
)

Answer 1

To find the difference between the diameters of Cell P and Cell Q, you would need to subtract the diameter of one cell from the diameter of the other. Since we typically want to find the difference as a positive value, we would subtract the smaller diameter from the larger diameter.

In this case, Cell P has a diameter of \( 5.0 \times 10^{-4} \) m and Cell Q has a diameter of \( 3.0 \times 10^{-5} \) m.

To find the difference, you should use the expression:

\[
(5.0 \times 10^{-4}) - (3.0 \times 10^{-5})
\]

Thus, the correct answer is:

**(5.0×10 −4 )−(3.0×10 −5 )**