Question

What is the result of the subtraction (in scientific notation) : (8.8 ×10^7) - ( 6 ×10^7)?

a) 2.8 ×10^7
b) 2.2 ×10^7
c) 2.8 ×10^-7
d) 2.2 ×10^-7

Answer 1

The subtraction (8.8 × 10^7) - (6 × 10^7) results in 2.8 × 10^7, which matches choice a).

Step-by-step explanation:

The result of the subtraction (8.8 × 10^7) - (6 × 10^7) is found by subtracting the coefficients (8.8 - 6) and keeping the exponent part unchanged, since both terms have the same power of ten.

The subtraction of the coefficients gives us 2.8, and since the exponents are the same, the result is 2.8 × 10^7, which corresponds to choice a) 2.8 × 10^7.