Solve the problem.A meteorologist records daily low temperatures of 10, 6, 10, 12, 13, 8, 11 and 10 degrees over a period of 8 days. What was the average low temperature for the period?
A. 9 degrees
B. 10 degrees
C. 11.43 degrees
D. 20 degrees
Answer: B
Mathematics
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Use the inverse trigonometric keys on a calculator to find the measure of angle A, rounded to the nearest whole degree.
A. 49° B. 51° C. 52° D. 50°
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Simplify the expression. Assume that all variables are positive.
-1/2
A. 
B. 
C. 
D. 
Mathematics
Simplify.x + 8 + 5
A. 13x B. x + 14 C. 13 D. x + 13
Mathematics
Add or subtract as indicated. Express the answer as a single polynomial in standard form.(2x7 - 19x4 - 13) - (15x4 + 5x7 - 19)
A. -3x7 - 34x4 + 6 B. -3x7 - 14x4 - 32 C. -31x11 D. -3x7 - 34x4 - 32
Mathematics