Two petri dishes were on the desktop in Dr. McFarlan's lab.
Dish A had cells with a radius of 2.3 × 10^-14 cm. Dish B had cells that had a radius of 3.5 × 10^-12 cm. What is the sum of the radii of the two types of cells, using scientific notation?
A.
35.23 × 10^-15 cm
B.
3.523 × 10^-12 cm
C.
3.523 × 10^-16 cm
D.
352.3 × 10^-14 cm
The sum of the radii of the two types of cells can be calculated by adding the two radii together:
(2.3 x 10^-14 cm) + (3.5 x 10^-12 cm) = 2.3 x 10^-14 cm + 35 x 10^-14 cm = 37.3 x 10^-14 cm
This can be simplified to 3.73 x 10^-13 cm in scientific notation.
Therefore, the correct answer is:
D. 3.73 x 10^-13 cm