Solve for the specified variable. Assume that all other variables are nonzero.P = 
; for Q
A. Q = 
B. Q = ± 
C. Q = ± 
D. Q = 
Answer: B
Mathematics
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Solve the problem.Scores on a test are approximately normally distributed with a mean of 70 and a standard deviation of 9. The teacher wants to give A's to the top 10% of students. What is the bottom cutoff for an A grade? Round your answer to the nearest whole number.
A. 80 B. 90 C. 79 D. 82
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Solve the problem.Find the surface area of a cube with an edge length of 2
yd.
A. 60 yd2
B. 12
yd2
C. 12
yd2
D. 37
yd2
Mathematics
Solve the problem.Write 220 out of 500 college students as a decimal and as a percent.
A. 0.44, 44% B. 0.44, 440% C. 0.44, 4.4% D. 4.4, 440%
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Find the area of the square.
A. 392 sq cm B. 196 sq cm C. 191 sq cm D. 56 sq cm
Mathematics