Perform the indicated calculation. Express your answer using scientific notation.
-$( 0.0000000064 ) ( 160,000,000,000 )$
A) $1.02 \times 10 ^ { 4 }$
B) $1.02 \times 10 ^ { 3 }$
C) $1.02 \times 10 ^ { - 3 }$
D) $1.02 \times 10 ^ { 2 }$

Question

Quizplus · Accepted Answer

To multiply these numbers in scientific notation, first convert them: $0.0000000064 = 6.4 \times 10^{-9}$ and $160,000,000,000 = 1.6 \times 10^{11}$. Multiplying these gives $6.4 \times 1.6 = 10.24$, and $(-9) + 11 = 2$, so $10.24 \times 10^{2}$, which simplifies to $1.024 \times 10^{3}$, or approximately $1.02 \times 10^{3}$.

Perform the Indicated Calculation (0.0000000064)(160,000,000,000)( 0.0000000064 ) ( 160,000,000,000 )(0.0000000064)(160,000,000,000) A) 1.02×1041.02 \times 10 ^ { 4 }1.02×104

Perform the Indicated Calculation $( 0.0000000064 ) ( 160,000,000,000 )$ A) $1.02 \times 10 ^ { 4 }$