Name the conic.
A. circle
B. ellipse
C. hyperbola
D. parabola
Answer: C
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Solve the problem.A certain radioactive isotope decays at a rate of 2% per 100 years. If t represents time in years and y represents the amount of the isotope left then the equation for the situation is 
In how many years will there be 88% of the isotope left?
A. 639 years B. 600 years C. 241 years D. 1200 years
Solve.A construction company incurred the following expenses on a job: gravel, $92.48; sand, $51.43; cement, $202.29; bricks, $240.82; and labor, $658.35. If the company charged $1600 for the job, what was the profit?
Fill in the blank(s) with the appropriate word(s).
Determine the area of the triangle. If necessary, round the answer to two decimal places.A = 83°, b = 9, 
A. 3.29 B. 26.80 C. 27.01 D. 53.60
Solve the problem.A life insurance company uses the following rate table for annual premiums for women for term life insurance. Use a graphing utility to fit an exponential function to the data. Predict the annual premium for a woman aged 70 years.
A. y = 0.0000398x4.06, $1233 B. y = 8.94e0.068x, $1044 C. y = 6.367e0.068x, $743 D. y = -9306.4 + 2516.3 ln (x), $1723