Determine whether there is a maximum or minimum value for the given function, and find that value.f(x) = -x2 - 2x - 9
A. maximum: 8
B. maximum: -8
C. minimum: 8
D. minimum: 0
Answer: B
Mathematics
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Solve the problem.In a chemical reaction, the rate at which the amount of a reactant changes with time is proportional to the amount present, such that 
, when t is measured in hours. If there are 
of reactant present when t = 0, how many grams will be left after 
? Give your answer to the nearest tenth of a gram.
A. 2.2 g B. 6.7 g C. 4.5 g D. 0.1 g
Mathematics
Use the principle of square roots to solve the equation.(x - 6)2 = 36
A. 0, -12 B. 42 C. 12, 0 D. 6, -6
Mathematics
Evaluate the definite integral.
A. -21
B. - 
C. 11
D. - 
Mathematics
Provide an appropriate response.
If C(x) = 5x + 1,000 and A(x) = 
, R(x) = $30x, and P(x) = R(x) - C(x), then if x = 100, P(x) =
A. 1,900 B. 1,700 C. 1,300 D. 1,500
Mathematics