Solve the problem.Find the sum of the infinite series 1 + 9r + 4r2 + 9r3 + r4 + 9r5 + 4r6 + 9a7 + r8 ... for those values of r for which it converges.
A. 
B. 
C. 
D. 
Answer: D
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Which students in the Watson and Moritz (2000) study were at times indifferent about the sizes of samples used for statistical investigations?
a. Samplers with primitive random selection b. Samplers with preselection of results c. Samplers with random or distributed selection d. Equivocal samplers
Factor using the trial and error method.9x2 + 24x + 16
A. (9x - 4)(x - 4) B. (3x + 4)(3x + 4) C. (3x - 4)(3x - 4) D. (9x + 4)(x + 4)
Find the area under the curve over the indicated interval.
y = 2/x; [1,4]
Solve.A box is constructed by cutting out square corners of a rectangular piece of cardboard and folding up the sides. If the cutout corners have sides with length x, then the volume of the box is given by the polynomial 
Factor out the greatest common factor for this expression.
A. 4x(x2 - 18x + 45) B. 4(x3 - 18x2 + 45x) C. 4x(x2 + 18x + 45) D. 2x(2x2 - 36x + 90)