Find, if possible, AB and BA.A = 
, B = 
A. AB = 
, BA = 
B. AB = 
, BA = 
C. AB = 
, BA = 
D. AB = 
, BA = 
Answer: C
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Find the indicated coefficient or term.The 3rd term in the expansion of (4x + 5)3
A. 600x B. 25 C. 300x D. 240x2
Solve. Write the fraction in simplest form.A restaurant has a capacity of 221 patrons. If the restaurant is 
full, how many patrons are at the restaurant?
A. 52 patrons B. 48 patrons C. 56 patrons D. 13 patrons
Solve the problem.A balloon (in the shape of a sphere) is being inflated. The radius is increasing at a rate of 5 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) = 
Find the derivative.r = 17 - ?8 cos ?
A. 
= 8?7 cos ? - ?8 sin ?
B. 
= 8?7 sin ?
C. 
= - 8?7 cos ? + ?8 sin ?
D. 
= 8?7 sin ? - ?8 cos ?