Use the slopes of UQ, UR, US, and UT to estimate the rate of change of y at the specified value of x.x = 3
A. 0
B. 2
C. 6
D. 4
Answer: D
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A company installs 5000 light bulbs, each with an average life of 500 hours, standard deviation of 100 hours, and distribution approximated by a normal curve. Find the percentage of bulbs that can be expected to last the period of time. Round to the nearest hundredth, if necessary.Greater than 500 hours
A. 50% B. 52% C. 80% D. 40%
Convert the angle in radians to degrees.- 
A. -227° B. -225° C. -224° D. -226°
Use the pictograph to answer the question.This pictograph shows projected sales of compact disks (CDs) for a popular rock band for seven consecutive years. 
? = 100,000 CDsIn which year will the greatest number of CDs be sold?
A. 2011 B. 2014 C. 2009 D. Not enough information is given.
Factor completely. If the polynomial cannot be factored, say it is prime.x2 + 6x - 27
A. (x - 3)(x + 9) B. (x + 3)(x + 1) C. (x + 3)(x + 9) D. prime