Factor as completely as possible. If unfactorable, indicate that the polynomial is prime.9x2 + 18x + 8
A. (3x + 4)(3x + 2)
B. (9x + 4)(x + 2)
C. prime
D. (3x - 4)(3x - 2)
Answer: A
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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) = -2x2, [0, 4], midpoint
A. 
B. 
C. 
D. 
Evaluate.
4
A. 1
B. 
C. 
D. 
Match the function f with its graph.f(x) = log2(x - 1)
A. 
B. 
C. 
D. 
The Richter scale converts seismographic readings into numbers for measuring the magnitude of an earthquake according to this function M(x) = log 
, where xo = 10-3.Find the magnitude (to one decimal place) of an earthquake whose seismographic reading is 2000 millimeters at a distance of 100 kilometers from its epicenter.
What will be an ideal response?