Calculate the instantaneous velocity for the given value of t of an object moving with rectilinear motion according to the given function relating s (in feet) and t (in seconds).s = t2 + 3t; t = 2
A. 7 ft/s
B. 4 ft/s
C. -4 ft/s
D. 6 ft/s
Answer: A
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Locate and classify all critical points for the given function.A critical point for f(x,y) = xy + 
+ 
is 
Is this a maximum or minimum? What is the value?
A. Minimum value of 3(22/3) B. Minimum value of 3(21/3) C. Maximum value of 3(21/3) D. Maximum value of 3(22/3)
Solve the equation by the quadratic formula.9x2 - 62x - 7 = 0
A. - 
, 
B. - 
, 7
C. -9, 7
D. - 
, 9
Solve the problem.The logistic growth function f(t) = 
describes the population of a species of butterflies 
after they are introduced to a non-threatening habitat. How many butterflies were initially introduced to the habitat?
A. 440 butterflies B. 2 butterflies C. 8 butterflies D. 50 butterflies
Find the integral.
A. - 2 ln 
+ C
B. 2 ln 
+ C
C. 
D. 