The graph of an exponential function is given. Match the graph to one of the following functions.
A. f(x) = 2-x
B. f(x) = -2x
C. f(x) = -2-x
D. f(x) = 2x
Answer: B
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Solve the problem.The half-life of silicon-32 is 710 years. If 50 grams is present now, how much will be present in 700 years? (Round your answer to three decimal places.)
A. 25.245 g B. 0 g C. 0.054 g D. 46.697 g
Find the expected value.Mr. Cameron is sponsoring an summer concert. He estimates that he will make $300,000 if it does not rain and make $60,000 if it does rain. The weather bureau predicts the chance of rain is 0.34 for the day of the concert. An insurance company is willing to insure the concert for $150,000 against rain for a premium of $30,000. If he buys this policy, what are his expected earnings from the concert?
A. $180,000 B. $300,000 C. $270,000 D. $239,400
A toy making company has at least 300 squares of felt, 700 oz of stuffing, and 230 ft of trim to make dogs and dinosaurs. A dog uses 1 square of felt, 4 oz of stuffing, and 1 ft of trim. A dinosaur uses 2 squares of felt, 3 oz of stuffing, and 1 ft of trim.It costs the company $1.34 to make each dog and $1.64 for each dinosaur. The company wants to minimize its costs. What are the coefficients of the constraint inequality for trim?
A. 1, 2 B. 1, 1 C. 4, 3 D. 1.34, 1.64
Factor completely.25x2 + 64
A. (5x - 8)2 B. (5x + 8)2 C. (5x + 8)(5x - 8) D. Prime