Express the number -187,000,000 in scientific notation.
A)$- 1.87 \times 10 ^ { 8 }$
B) $- 1.87 \times 10 ^ { 7 }$
C) $- 1.87 \times 10 ^ { 9 }$
D) $- 18.7 \times 10 ^ { 9 }$

Question

Express the number -187,000,000 in scientific notation. 
A)$- 1.87 \times 10 ^ { 8 }$
B) $- 1.87 \times 10 ^ { 7 }$
C) $- 1.87 \times 10 ^ { 9 }$
D) $- 18.7 \times 10 ^ { 9 }$

Quizplus · Accepted Answer

To write a number in scientific notation, we move the decimal point to the right or left so that there is only one non-zero digit to the left of the decimal point. In this case, we can move the decimal point 8 places to the left to get -1.87 and then write this in scientific notation as -1.87 × 10^8. Therefore, the answer is A.

Express the Number -187,000,000 in Scientific Notation −1.87×108- 1.87 \times 10 ^ { 8 }−1.87×108

Express the Number -187,000,000 in Scientific Notation $- 1.87 \times 10 ^ { 8 }$