Solve the problem.The formula P = 0.68x2 - 0.048x + 1 models the approximate population P, in thousands, for a species of fish in a local pond, x years after 1997. During what year will the population reach 33.984 thousand fish?
A. 2005
B. 2003
C. 2006
D. 2004
Answer: D
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Use the decibel scale to answer the question.How does the intensity of sound form a concert speaker at a distance of 1 meter compare to the intensity at a distance of 900 meters?
A. Factor of 2700 weaker at 900 m. B. Factor of 10900 weaker at 900 m. C. Factor of 900 weaker at 900 m. D. Factor of 810,000 weaker at 900 m.
Use the formula for the nth term of a geometric sequence to find the indicated term of the sequence with the given first term, a, and common ratio, r.Find a10 when a = 6, r = -2.
A. -12 B. 6144 C. -3072 D. -3068
Which of the following securities is an appropriate investment to include in the marketable securities account?
A. Common stock B. Long-term corporate bonds C. Preferred stock D. Mortgages E. Treasury bills
As astronomer observes that at point A on the planet Mercury at a particular time the sun is directly in line with point A and the center of the planet. At the same time, the sun’s rays form an angle of 5 with the vertical at point B on the surface of the planet. She determines that point B is roughly 213 km south of point A. Using this data, what will she calculate Mercury’s diameter to be? (See sketch.)
