Use scientific notation to perform the following operations. Leave your answer in scientific notation.
-$\left( 20 \times 10 ^ { 5 } \right) \div \left( 4 \times 10 ^ { 6 } \right)$
A) $5.0 \times 10 ^ { 1 }$
B) $- 5.0 \times 10 ^ { 1 }$
C) $5.0 \times 10 ^ { - 1 }$
D) $- 5.0 \times 10 ^ { - 1 }$

Question

Quizplus · Accepted Answer

Divide the coefficients: $20 \div 4 = 5$. Subtract the exponents: $10^5 \div 10^6 = 10^{-1}$. The result is $5.0 \times 10^{-1}$.

Use Scientific Notation to Perform the Following Operations (20×105)÷(4×106)\left( 20 \times 10 ^ { 5 } \right) \div \left( 4 \times 10 ^ { 6 } \right)(20×105)÷(4×106)

Use Scientific Notation to Perform the Following Operations $\left( 20 \times 10 ^ { 5 } \right) \div \left( 4 \times 10 ^ { 6 } \right)$