Provide an appropriate response.Use the Binomial Theorem to write the first three terms in the expansion and simplify: (x + 3y2)9.
A. x9 + 27x8y2 + 324x7y4
B. x9 + 27x8y2 + 648x7y4
C. x9 + 30x8y2 + 648x7y4
D. x9 + 30x8y2 + 324x7y4
Answer: A
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Solve the problem. Round to two decimal places unless otherwise indicated.If the average cost per unit C(x) to produce x units of plywood is given by C(x) = 
, what is the unit cost for 50 units?
A. $-4.00 B. $5.00 C. $0.60 D. $6.00
Solve the problem.A balloon (in the shape of a sphere) is being inflated. The radius is increasing at a rate of 11 cm per second. Find a function, r(t), for the radius in terms of t. Find a function, V(r), for the volume of the balloon in terms of r. Find (V ? r)(t).
A. (V ? r)(t) = 
B. (V ? r)(t) = 
C. (V ? r)(t) = 
D. (V ? r)(t) = 
Match the equation to the correct graph.y = (x - 4)2
A. 
B. 
C. 
D. 