Question

7/12/20 - Aleks 4 / 13

Evaluate:

(9.7 x 10^8) - (7.6 x 10^8)

Answer 1

To evaluate the expression (9.7 x 10⁸ ) - (7.6 x 10⁸ ), subtract the coefficients and keep the exponent, resulting in 2.1 x 10⁸ .

Step-by-step explanation:

The question asks us to evaluate the expression (9.7 x 10⁸ ) - (7.6 x 10⁸ ). To solve this, we need to subtract the two numbers while taking into account their scientific notation.

Here is a step-by-step solution:

1. Write down the numbers in scientific notation form, which they already are: (9.7 x 10⁸ ) and (7.6 x 10⁸ ).
2. Since the exponents of 10 are the same, you can directly subtract the coefficients:
3. 9.7 - 7.6 = 2.1

Therefore, (9.7 x 10^8) - (7.6 x 10⁸ ) equals 2.1 x 10⁸ .