Solve using the quadratic formula.4x2 + 10x = - 1
A. 
, 
B. 
, 
C. 
, 
D. 
, 
Answer: B
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Use the shell method to find the volume of the solid generated by revolving the region bounded by the given curves and lines about the y-axis.y = 3ex2, y = 0, x = 0, x = 1
A. 6(e - 1) ?
B. 6e ?
C. 3(e - 1) ?
D. 
(e - 1) ?
Solve the problem.
= ky + f(t) is a population model where y is the population at time t and f(t) is some function to describe the net effect on the population. Assume k = .02 and y = 10,000 when t = 0. Solve the differential equation of y when f(t) = -21t.
A. y = -1050t - 52,500 - 42,500e.02t B. y = 1050t + 52,500 - 42,500e-.02t C. y = -1050t + 52,500 - 42,500e-.02t D. y = 1050t + 52,500 - 42,500e.02t
Let A = {6, 4, 1, {3, 0, 8}, {9}}. Determine whether the statement is true or false.{9} ? A
A. True B. False
Solve the formula for the specified variable.
+ 
= c for b
A. b = 
B. b = 
C. b = 
- a
D. b = ac - 