Solve the system of equations by the addition method.
A. (4, 3)
B. (0, 0)
C. infinite number of solutions
D. no solution
Answer: C
Mathematics
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Factor completely. If the polynomial cannot be factored, say it is prime.2x2 - 16x + 30
A. (x - 5)(2x - 6) B. prime C. 2(x - 5)(x - 3) D. 2(x - 15)(x + 1)
Mathematics
Multiply.(7 + 8i)(2 + 5i)
A. 40i2 + 51i + 14 B. 54 - 19i C. -26 - 51i D. -26 + 51i
Mathematics
Find the derivative.g(x) = 3x5 + x4 - 3x2 + 5, find g'(-5)
A. -470 B. 9405 C. 8875 D. 8905
Mathematics
Solve the problem.Suppose the supply function of a certain item is given by 
and the demand function is given by 
Find the producers' surplus. (Hint: The equilibrium quantity q0 is a perfect cube.)
A. 
B. 32
C. 64
D. 
Mathematics