130k views
4 votes
100 PTS

Find the difference between (1.3 × 108) and (3.8 × 107). Write the final answer in scientific notation.

User Nad Pat
by
8.2k points

2 Answers

1 vote

Answer:

9.2 × 10⁷

Explanation:

Exponent Rule:


\boxed{a^(b+c)=a^b \cdot a^c}


\begin{aligned}(1.3 * 10^8)- (3.8 * 10^7)&=(1.3 * 10^(7+1)) - (3.8 * 10^(7))\\&=(1.3 * 10^7 * 10^1) - (3.8 * 10^(7))\\&=(1.3 * 10^1 * 10^(7)) - (3.8 * 10^(7))\\&=(13* 10^(7)) - (3.8 * 10^(7))\\&=(13-3.8) * 10^(7)\\&=9.2 * 10^(7)\end{aligned}}

User Daniel Li
by
8.0k points
6 votes

Answer:

  • 9.2 × 10⁷

------------------------------

Find the difference in below steps:

  • 1.3 × 10⁸ - 3.8 × 10⁷ =
  • 1.3 × 10 × 10⁷ - 3.8 × 10⁷ =
  • 13 × 10⁷ - 3.8 × 10⁷ =
  • (13 - 3.8) × 10⁷ =
  • 9.2 × 10⁷
User Mohsin Qureshi
by
8.0k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories