Solve the rational inequality. Write the solution set in interval notation.
> 0
A. (20, -?)
B. (-?, 20)
C. (-20, ?)
D. [20, ?]
Answer: C
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Solve the problem.A spotlight has a parabolic cross section that is 6 ft wide at the opening and 2.5 ft deep at the vertex. How far from the vertex is the focus? Round answer to two decimal places.
A. 0.21 ft B. 0.52 ft C. 0.90 ft D. 0.26 ft
Solve the problem.A certain radioactive isotope has a half-life of 231 years. Determine the annual decay rate, k.
A. 0.135% B. 0.265% C. 0.195% D. 0.3%
Solve.Jeremy has traveled 
of his total trip. He has traveled 460 miles so far. How many more miles does he have to travel?
A. None of these B. 92 miles C. 575 miles D. 115 miles
A triangular region of farmland has become overrun with deer and will be open to the public for hunting to reduce the population. In order to know how many hunters to allow on the land at one time, you need to know the area of the region in square miles. In order to estimate the area of the region, you travel from the southernmost vertex C north 20 miles then west 24 miles (for vertex B), and from the southernmost vertex C you travel 54 miles north then 7 miles east (for vertex A). Use a graphing utility to approximate the number of square miles of land.
A. 578 square miles B. 51 square miles C. 119 square miles D. 429 square miles E. 718 square miles