Solve the problem.Given the following revenue and cost functions, find the x-value that makes revenue a maximum. R(x) = 84x - 2x2; C(x) = 22x + 101
A. 21
B. 22
C. 42
D. 20
Answer: A
Mathematics
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Find the extreme values of the function subject to the given constraint.
A. Maximum: 4 at 
minimum: -4 at 
B. Maximum: 18 at 
minimum: -18 at 
C. Maximum: 4 at 
minimum: -4 at 
D. Maximum: 18 at 
minimum: -18 at 
Mathematics
Solve the equation. 
= 5.1
A. -5.1 B. 5.1 C. 2601 D. 5.1, -5.1
Mathematics
Use Gauss-Jordan elimination to find the solution. Write the solution as an ordered pair. x + 7y = -23x + y = 34
A. (7, 12) B. (3, 7) C. (-2, 3) D. (12, -2)
Mathematics
Solve using the quadratic formula.p2 - 
p + 
= 0
A. p = 
B. p = 
C. p = 
D. No real solutions
Mathematics