Multiply.(2x + 8)(2x - 8)
A. 4x2 - 64
B. 4x2 - 32x - 64
C. 2x2 - 32x - 64
D. 4x2 + 32x - 64
Answer: A
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Find dr/d?.r
= 4
A. 
B. - 
C. 
D. - 
Because of new, lower standards, experts in a study conducted in early 2000 projected a rise in the market for cholesterol-reducing drugs. The any market (in billions of dollars) for such drugs from 1999 through 2004 is given in the following table (
represents 1999):
Year, x199920002001200220032004Market, y10.2212.4114.8417.5720.0221.81? Find an equation of the least-squares line for these data. Please round coefficients to the nearest hundredth if necessary. Estimate the market for cholesterol-reducing drugs in 2005, assuming the trend continued. ? A. $24.52 billion B. $28.15 billion C. $27.89 billion D. $26.32 billion E. $20.11 billion
Simplify the expression. Assume that all variables are positive when they appear.(
+ 3)(
- 3)
A. 8 - 2
B. -1
C. 5
D. 17
Factor the trinomial completely.56m2n2 - 37mn + 6
A. (8mn + 3)(7mn + 2) B. (8mn - 3)(7mn - 2) C. (8mn - 3)(7mn + 2) D. (8m2 - 3)(7n2 - 2)