Given the function, find the indicated value.f(x) = 9 - 3x2; f(7)
A. -138
B. -33
C. -12
D. 156
Answer: A
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Solve the problem.The following table shows the rate of water flow (in gal/min) from a stream into a pond during a 30-minute period after a thunderstorm. Use Simpson's Rule to estimate the total amount of water flowing into the pond during this period. Round your answer to the nearest gallon.
A. 7,733 gal B. 8,850 gal C. 7,050 gal D. 7,725 gal
Subtract.15 - (-7)
A. 8 B. 22 C. -8 D. -22
Use a proportion to solve the problem.A recent advertisement claimed that 2 out of every 5 doctors recommend a certain herbal supplement to increase energy levels. If a local hospital employs 140 doctors, how many doctors would you expect to recommend the supplement? (Round to the nearest whole number, if necessary.)
A. 350 doctors B. 28 doctors C. 56 doctors D. 1400 doctors
Divide. Be sure your answer is simplified.
÷ 
A. 
B. 
C. 
D. 