Write the function that describes the following scenario: A company makes computer chips that sell for $200 each. The cost of installation of one chip is $64.
?
A. ?f(x) = 64x + 200
B. ?f(x) = 200x
C. ?f(x) = 200x + 64
D. ?f(x) = 64x
E. ?None of the above.
Answer: E
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Use a calculator to approximate the number. (Round your answer to three decimal places.)
?
A. 3.624 B. 3125.000 C. 25.000 D. 125.000 E. 630.000
A container contains a large unspecified number of ping-pong balls. A student takes 80 balls from the container, marks them with a blue dot, returns the marked balls to the container, and thoroughly mixes the balls. She then takes 80 balls again from the container. Of these, 16 have blue dots. She now wants to use this data to estimate the total number of ping-pong balls in the container.The best estimate for the percentage of ping-pong balls in the container that are marked is
A. 15%. B. 5%. C. 10%. D. 20%. E. none of these
Use similar triangles and the fact that corresponding sides are proportional to find the length of the side marked with an x.
A. 39 in. B. 156 in. C. 4.3 in. D. 0.9 in.
Solve the system.
A. x = 1, y = -1, z = 1 B. x = -1, y = 1, z = 1 C. x = 0, y = 1, z = 0 D. x = 0, y = 0, z = 1