Multiply the polynomials.(x - 5)(3x + 7)(3x - 7)
A. 9x3 - 45x2 + 49x + 245
B. 9x3 - 45x2 - 49x + 245
C. 9x3 + 245
D. 9x3 + 45x2 - 49x + 245
Answer: B
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Solve the problem.Find the center of mass of the thin semicircular region of constant density 
bounded by the 
and the curve 
.
A. 
= 0, 
= 
B. 
= 0, 
= 
C. 
= 0, 
= 
D. 
= 0, 
= 
Provide an appropriate response.A surveyor sights to a point across a pond, then makes a right angle, measures 50-ft and sights the same point across the pond with a 34° angle. Find the distance across the pond where the surveyor began.
A. 41.45 ft B. 33.73 ft C. 27.96 ft D. 74.13 ft
Find either a linear or an exponential function that models the data in the table.
A. f(x) = 21x + 7
B. f(x) = 
x + 7
C. f(x) = 4(7)x
D. f(x) = 7(4)x
Determine whether the infinite geometric series converges or diverges. If it converges, find its sum.-15 - 3 - 
- ...
A. Converges; 
B. Converges; - 
C. Converges; - 
D. Diverges