The life expectancy of a star is a power function of its mass. The value of the power in this function is 
. If the life expectancy is multiplied by 2.35, how is the mass affected? Round your answer to two decimal places if necessary.
?
A. Mass is multiplied by 0.71.
B. Mass is multiplied by 0.12.
C. Mass is multiplied by 0.51.
D. Mass is multiplied by 1.12.
Answer: A
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Perform the indicated operation by first expressing each number in scientific notation. Write answer in scientific notation.
A. 7.6 × 103 B. 7.6 × 104 C. 7.6 × 106 D. 7.6 × 105
The map below has horizontal and vertical grid markers for ease of use. For example, Newport is located in grid A4. Use the grid labels to indicate the location of the given city.
Capitol City
A. D5 B. F5 C. E5 D. E4
Use the right triangle shown below and find the missing length. Give an exact answer and a decimal approximation rounded to two decimal places. 
b = 5, c = 5
A. a = 30
B. a = -5
? 11.18
C. a = 5
? 11.18
D. a = 5
? 12.25
Solve the problem.Paul has grades of 100 and 67 on his first two tests. What must he score on his third test in order to have an average of at least 80?
A. at most 82 B. at least 73 C. at least 84 D. at most 80