Perform the indicated calculation. Express your answer using scientific notation.
-$$\left( 9.24 \times 10 ^ { 5 } \right) \div \left( 4.4 \times 10 ^ { - 6 } \right)$$
A) $4.2 \times 10^{11}$
B) $2.1 \times 10 ^ { - 1 }$
C) $2.1 \times 10^{11}$
D) $4.2 \times 10 ^ { - 1 }$

Question

Quizplus · Accepted Answer

To divide two numbers in scientific notation, we need to divide the significant figures and subtract the exponents. Therefore, we have
$$ \frac{ 9.24 	imes 10 ^ { 5 } }{ 4.4 	imes 10 ^ { - 6 } } = \frac{ 9.24 }{ 4.4 } 	imes 10 ^ { 5 - ( -6 ) } = 2.1 	imes 10^{11} $$
Therefore, the answer is choice C) $2.1 	imes 10^{11}$.

Perform the Indicated Calculation (9.24×105)÷(4.4×10−6)\left( 9.24 \times 10 ^ { 5 } \right) \div \left( 4.4 \times 10 ^ { - 6 } \right)(9.24×105)÷(4.4×10−6)

Perform the Indicated Calculation $\left( 9.24 \times 10 ^ { 5 } \right) \div \left( 4.4 \times 10 ^ { - 6 } \right)$