Solve the problem using your calculator.The paired data below consist of the temperatures on randomly chosen days and the amount a certain kind of plant grew (in millimeters). Use linear regression to find a linear function that predicts a plant's growth as a function of temperature.
A. y = 14.6 + 0.211x
B. y = 7.30 - 0.112x
C. y = -14.6 - 0.211x
D. y = 7.30 + 0.122x
Answer: A
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Solve the problem.In four rounds of a card game, you get scores of -4, -9, -4, and 9. What is your final score?
A. 18 B. 8 C. -18 D. -8
Find an equation for the sphere with the given center and radius.Center (0, 0, 5), radius = 8
A. x2 + y2 + z2 - 10z = 39 B. x2 + y2 + 8 z2 + 10z = 39 C. x2 + y2 + z2 + 10z = 39 D. x2 + y2 + 8 z2 - 10z = 39
Find the probability. Round to the nearest ten-thousandth when necessary.A coin is biased to show 43% heads and 57% tails. The coin is tossed twice. What is the probability that the coin turns up heads on the second toss?
A. 0.1849 B. 0.57 C. 0.2451 D. 0.43
Sketch the graph of the pair of functions. Use a dashed line for g(x).f(x) = |x|, g(x) = 
|x + 6| - 3
A. 
B. 
C. 
D. 