the size of a certain cell is 2.5 x 10^-9m. another cell is 1.5x10^3 times larger. how large is the larger cell in scientific notation?

To find the size of the larger cell in scientific notation, we multiply the size of the smaller cell by the given factor of 1.5x10^3.

Size of the larger cell = (2.5 x 10^-9 m) x (1.5 x 10^3)
= 2.5 x 1.5 x 10^-9 x 10^3
= 3.75 x 10^-6 x 10^3
= 3.75 x (10^-6 x 10^3)
= 3.75 x 10^-6+3
= 3.75 x 10^-3

Therefore, the larger cell is 3.75 x 10^-3 m in scientific notation.