Solve the formula for the specified variable.S = 2?rh + 2?r2 for h
A. h = S - r
B. h = 
- 1
C. h = 2?(S - r)
D. h = 
Answer: D
Mathematics
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Graph.5x2 + 25y2 = 225 
A. 
B. 
C. 
D. 
Mathematics
Using a sum or difference identity, write the following as an expression involving functions of ?.tan 
A. -tan ?
B. 
C. tan ?
D. 
Mathematics
Factor completely. If the polynomial cannot be factored, say it is prime.20x6 + 12x3 - 15x3 - 9
A. (4x6 - 3)(5x + 3) B. (20x3 + 3)(x3 - 3) C. (4x3 - 3)(5x3 + 3) D. (4x3 + 3)(5x3 - 3)
Mathematics
The marginal cost of producing the xth box of computer disks is 
and the fixed cost is $120,000. Find the cost function 
.
?
A. 
B. 
C. 
D. 
E. 
Mathematics