Write the expression using scientific notation.

(2.5 • 104)(4 • 103)

A. 10 • 107
B. 10 • 108
C. 1 • 108
D. 10 • 1012

1 answer

To write the expression using scientific notation, we first multiply the coefficients (2.5 * 4 = 10). Then we add the exponents of the powers of 10 (10^4 * 10^3 = 10^(4+3) = 10^7). Therefore, the expression in scientific notation is:

10 • 10^7

Which simplifies to:

1 • 10^8

Therefore, the answer is option C. 1 • 108.