Determine whether the variation between the indicated quantities is direct or inverse.The time for a person to travel a fixed distance and the average speed at which the person travels.
A. Direct
B. Inverse
Answer: B
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Give the name of the surface.
A. Pentagonal pyramid B. Right pentagonal prism C. Pentagonal cylinder D. Rectangular prism
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
Fill in the blank with one of the words or phrases listed below. 
If a2 = b, then a = 
.
A. (h, k)
B. ±
C. 
D. quadratic
Match the graph to one of the polar equations.
A. r sin ? = -1 B. r = -2 cos ? C. r = -2 sin ? D. r = -1