Solve the problem. Round to the nearest hundredth, if necessary.The average weekly income of teachers in one school district is $760 with a standard deviation of 
Find the percentage of teachers earning more than $820 a week.
A. 78.81%
B. 81.33%
C. 80%
D. 21.19%
Answer: D
Mathematics
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An auxiliary electric power station will serve three communities, A, B, and C, whose relative locations are shown in the accompanying figure. Determine where the power station should be located if the sum of the squares of the distances from each community to the site is minimized. Please round the answer to the nearest hundredth.
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A. 
B. 
C. 
D. 
E. 
Mathematics
Solve the exponential equation. Round to three decimal places when necessary.(3.3)x = 45
A. 3.188 B. 3.312 C. 3.176 D. 3.201
Mathematics
Plot the point.(0, 1)
A. 
B. 
C. 
D. 
Mathematics
For the functions f(x) and g(x), evaluate the indicated function.Find (f ? g)(2) when f(x) = x - 6 and g(x) = -3x2 + 12x - 4.
A. -96 B. 64 C. -128 D. -32
Mathematics