Express the number -174,000,000 in scientific notation.
A) $- 1.74 \times 10 ^ { 9 }$
B) $- 1.74 \times 10 ^ { 8 }$
C) $- 17.4 \times 10 ^ { 9 }$
D) $- 1.74 \times 10 ^ { 7 }$

Question

Express the number -174,000,000 in scientific notation. 
A) $- 1.74 \times 10 ^ { 9 }$
B) $- 1.74 \times 10 ^ { 8 }$
C) $- 17.4 \times 10 ^ { 9 }$
D) $- 1.74 \times 10 ^ { 7 }$

Quizplus · Accepted Answer

To convert the number to scientific notation, we need to move the decimal point 8 places to the left and multiply by 10 to the power of 8. This gives us $-1.74 \times 10 ^ { 8 }$. Choice A is incorrect because it would mean moving the decimal point 9 places to the left. Choice C is incorrect because the coefficient should be between 1 and 10. Choice D is incorrect because it would mean moving the decimal point 7 places to the left.

Express the Number -174,000,000 in Scientific Notation −1.74×109- 1.74 \times 10 ^ { 9 }−1.74×109

Express the Number -174,000,000 in Scientific Notation $- 1.74 \times 10 ^ { 9 }$