Find a parametrization for the curve.The upper half of the parabola x - 9 = y2
What will be an ideal response?
Answers will vary. Possible answer: x = t2 - 9, y = t, t ? 0
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?There are nine red marbles, six green marbles, and seven white marbles in a bag. If a green marble is selected, the payout is $5. If any other color is selected, there is a $2 loss assessed. It takes $2 to pay. What is expected gain or loss for the player? Round off to the nearest cent.
A. ?A loss of $2.07 for the player. B. ?A gain of $2.07 for the player. C. ?A loss of $2.07 for the casino. D. ?A gain of $2.07 for the casino. E. ?a and d only F. ?b and d only
Subtract.-7 - (-7)
A. 0 B. 1 C. 7 D. -7
Sketch the graph and show all local extrema and inflection points.y = x1/3(x2 - 252)
A. Min: (0,0)
No inflection points
B. Local max: (0,0), min: 
Inflection points: 
C. No extrema
Inflection point: (0,0)
D. Local max: 
, min: 
Inflection point: (0,0)
Solve the problem. Round your answer to the nearest whole number, if necessary.The function f(t) = -0.2t2 + 8t approximates the average number of digits that participants in a memorization experiment were able to recall after t minutes. Find the number of digits recalled after 8 minutes.
A. 31 digits B. 71 digits C. 51 digits D. 91 digits