Solve the problem.A summer camp wants to hire counselors and aides to fill its staffing needs at minimum cost. The average monthly salary of a counselor is $2400 and the average monthly salary of an aide is $1100. The camp can accommodate up to 35 staff members and needs at least 20 to run properly. They must have at least 10 aides, and may have up to 3 aides for every 2 counselors. How many counselors and how many aides should the camp hire to minimize cost?
A. 8 counselors and 12 aides
B. 13 counselors and 16 aides
C. 13 counselors and 17 aides
D. 19 counselors and 23 aides
Answer: A
Mathematics
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Write the numeral as a traditional Chinese numeral.620
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.For the surface z = f(x,y), show that the surface integral 
d? = 
dxdy.
What will be an ideal response?
Mathematics
Solve the problem.Use the binomial series and the fact that 
tanh-1 x = 
to generate the first four nonzero terms of the Taylor series for tanh-1 x. Use the first three terms of the series to estimate tanh-1 (0.5).
A. 1 + x2 - x4 + x6; 0.688
B. x - 
+ 
- 
; 0.535
C. x + 
- 
+ 
; 0.535
D. 1 - x2 + x4 - x6; 0.813
Mathematics
Perform the indicated operations and simplify the result. Leave the answer in factored form.
+ 
+ 
A. 
B. 
C. 
D. 
Mathematics