Question

Dish A had cells with a radius of 4.7 × 10^-14 cm. Dish B had cells that had a radius of 4.4 × 10^-12 cm. What is the sum of the radii of the two types of cells, using scientific notation?

Answer 1

try again

Answer 2

To add the radii of the two types of cells, we first need to convert both radii to the same power of 10:

Dish A: 4.7 × 10^-14 cm = 0.000000000000047 cm
Dish B: 4.4 × 10^-12 cm = 0.000000000044 cm

Now we can add the radii together:

0.000000000000047 cm + 0.000000000044 cm = 0.000000000000091 cm

Converting back to scientific notation gives us:

9.1 × 10^-14 cm

Therefore, the sum of the radii of the two types of cells is 9.1 × 10^-14 cm.

Answer 3

Let's try again with a different approach.

Dish A: 4.7 × 10^-14 cm = 4.7 × 10^-14 cm
Dish B: 4.4 × 10^-12 cm = 4.4 × 10^-12 cm

Adding the radii together:

4.7 × 10^-14 cm + 4.4 × 10^-12 cm = (4.7 + 0.44) × 10^-14 cm = 5.14 × 10^-14

Therefore, the sum of the radii of the two types of cells is 5.14 × 10^-14 cm.