Solve the problem. Express the answer in scientific notation to two decimals unless requested otherwise.A light-year is the distance that light travels in one year. Find the number of miles in a light-year if light travels 1.86 × 105 miles/second. (Round to one decimal place, and assume that there are 365 days in a year.)
A. 5.9 × 107 miles
B. 5.9 × 1012 miles
C. 5.9 × 1014 miles
D. 5.9 × 105 miles
Answer: B
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Write a fraction to represent the shaded area of the figure.
A. 
B. 
C. 
D. 
Perform the indicated operation. Write the result in the form a + bi.(3 + 6i) - (-9 + i)
A. -6 + 7i B. 12 + 5i C. 12 - 5i D. -12 - 5i
Use a calculator to find the value of the expression rounded to two decimal places.sin-1 (-0.9)
A. -64.16 B. 2.69 C. 154.16 D. -1.12
Solve the application.On the morning of February 2nd the temperature was 9°F. The next morning the temperature had dropped 15°F. What was the temperature on the morning of February 3rd?
A. The temperature on the morning of February 3rd was 24°F. B. The temperature on the morning of February 3rd was -24°F. C. The temperature on the morning of February 3rd was -6°F. D. The temperature on the morning of February 3rd was -15°F.