Solve the problem.P(x) = -x3 + 15x2 - 48x + 450, x ? 3 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. 5 hundred thousand
B. 3 hundred thousand
C. 8 hundred thousand
D. 10 hundred thousand
Answer: C
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Solve the equation.
a = 0
A. {19} B. {-19} C. {1} D. {0}
Factor the expression. Express your answer so that only positive exponents occur. (3m + 1)-2/5 + (3m + 1) 1/5 + (3m + 1) 7/5
A. (3m + 1)-2/5 [1 + (3m + 1) 3/5 + (3m + 1) 9/5] B. (3m + 1)-2/5 [1 + (3m + 1)-3/5 + (3m + 1) -9/5] C. (3m + 1)-2/5 [1 + (3m + 1) 4/5 + (3m + 1) 7/5] D. (3m + 1)-2/5 [1 + (3m + 1) 3/5 - (3m + 1) 9/5]
Find a polynomial of degree 3 with real coefficients that satisfies the given conditions.Zeros: -2, 1, 0; f(2) = 40
A. 5x2 + 5x - 10 B. 5x3 + 15x2 - 10x C. 5x3 - 5x2 - 10x D. 5x3 + 5x2 - 10x
Express the product as a sum containing only sines or cosines.sin(8?) cos(4?)
A. sin cos(32?2)
B. 
[sin(12?) + cos(4?)]
C. 
[cos(12?) - cos(4?)]
D. 
[sin(12?) + sin(4?)]