Solve the problem.Let y(t) be the concentration of a substance in a chemical reaction. The change in the concentration, under appropriate conditions, is modeled by the equation 
where k > 0 is a rate constant and the positive integer n is the order of the reaction. Solve the initial value problem for a third-order reaction 
, assuming y(0) = 5 and k = 0.1.
A. y = - 
B. y = 
C. y = 
D. y = 
Answer: C
Mathematics
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Choose the graph of the equation.z = x2+ y2
A. 
B. 
C. 
D. 
Mathematics
Use the given zero to find the remaining zeros of the function.f(x) = x3 + 5x2 + 7x - 13; zero: -3 + 2i
A. 2 - 3i, 1 B. -3 - 2i, 1 C. -3 - 2i, -1 D. 2 - 3i, -1
Mathematics
Find the period.y = 3 sin
A. 3?
B. 2?
C. 
D. 4?
Mathematics
The graph of a function is given. Find the indicated function value.f(-0.9)
A. 2.1 B. 2.641 C. 1 D. -1.34
Mathematics