Question

evaluate. express your answer in scientific notation.
$6.3 \times 10^{7} - 4.7 \times 10^{6}$
answer attempt 1 out of 2
answer: $\square \times 0^{\square}$
submit answer

Explanation:

Step1: Rewrite to same exponent

$6.3 \times 10^7 = 63 \times 10^6$

Step2: Subtract the coefficients

$63 \times 10^6 - 4.7 \times 10^6 = (63 - 4.7) \times 10^6 = 58.3 \times 10^6$

Step3: Convert to proper scientific notation

$58.3 \times 10^6 = 5.83 \times 10^7$

Answer:

$5.83 \times 10^7$