Solve the problem.P(x) = -x3 + 
x2 - 60x + 100, x ? 5 is an approximation to the total profit (in thousands of dollars) from the sale of x hundred thousand tires. Find the number of hundred thousands of tires that must be sold to maximize profit.
A. 4 hundred thousand
B. 5.5 hundred thousand
C. 5 hundred thousand
D. 4.5 hundred thousand
Answer: C
Mathematics
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Construct a truth table for the given statement and then determine if the statement is a tautology.( ~ p ? q) ? (p ? q)
A. 
Is not a tautology.
B. 
Is not a tautology.
C. 
Is a tautology.
D. 
Is not a tautology.
Mathematics
Find VPK when VRMS = 60 V.
a. 42.4 V b. 84.9 V c. 94.3 V d. 117.0 V e. 120.0 V
Mathematics
Find the opposite of the polynomial.16a2 - 4
A. -16a2 - 8 B. -16a2 + 4 C. 16a2 - 4 D. 16a2 + 8
Mathematics
Factor out the negative sign with the GCF.-6x3 - 12x2 + 9x
A. -3(2x3 + 4x2 - 3x) B. -3x(2x2 - 4x + 3) C. -3x(2x2 + 4x - 3) D. -6x(x2 + 2x - 3)
Mathematics