Solve the problem. Round to tenths where necessary.P(x) = -x3 + 12x2 - 21x + 100, x ? 4 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. 13 hundred thousand
B. 7 hundred thousand
C. 4 hundred thousand
D. 10 hundred thousand


Answer: B

Mathematics

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Determine the indicated component or components of the vector. Round to an appropriate number of significant digits.Magnitude = 35.5, ? = 296.8°Find the horizontal and vertical components of V.

A. 16, 31.7 B. -31.7, 16 C. 16, -31.7 D. 31.7, 16

Mathematics

Write the first four terms of the sequence.an = 

A. a1 = , a2 = , a3 = , a4 = 
B. a1 = , a2 = , a3 = , a4 = 
C. a1 = , a2 = , a3 = , a4 = 
D. a1 = , a2 = , a3 = , a4 = 

Mathematics

Construct a truth table for the statement.~((w ? t) ? q)

A.

TTTF
T T F F
T F T F
T F F T
F T T F
F T F T
F F T F
F F F T
B.
TTTT
T T F F
T F T T
T F F F
F T T T
F T F F
F F T T
F F F F

Mathematics

Multiply.(-9)

A. - 
B. - 
C.
D.

Mathematics