Factor completely, or state that the polynomial is prime.16b2x - 121y - 121x+ 16b2y
A. (4bx - 11y)2
B. (4bx + 11y)(4bx - 11y)
C. (4b + 11)(4b - 11)(x + y)
D. prime
Answer: C
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Graph the function f(x) over the given interval. Partition the interval into 4 subintervals of equal length. Then add to your sketch the rectangles associated with the Riemann sum 
, using the indicated point in the kth subinterval for ck.f(x) = cos x + 1, [0, 2?], left-hand endpoint
A. 
B. 
C. 
D. 
Write a short statement that expresses a possible function between the given variables.(number of SUVs on road, air quality)
A. As the quality of the air deteriorates, the number of SUVs on the road decreases. B. As the number of SUVs on the road increases, the quality of the air generally deteriorates. C. As the quality of the air deteriorates, the number of SUVs on the road increases. D. As the number of SUVs on the road decreases, the quality of the air generally deteriorates.
Add or subtract as indicated.(21x + 10xy - 11y) - (18x - 23xy - 17y)
A. 3x + 33xy + 6y B. 11x - 3xy + 28 C. 42xy D. 3x - 33xy - 28y
Provide an appropriate response.Multiply the fractions and reduce: 
? 
A. 
B. 
C. 
D. 