Find
.v = 5i + 6j + 2k
A.
B.
C.
D.
Answer: D
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Write the phrase as a mathematical expression. Use x as the variable.The difference of some number and 4.7
A. 4.7 B. x + 4.7 C. 4.7x D. x - 4.7
Use Bayes' rule to find the indicated probability.An water well is to be drilled in the desert where the soil is either rock, clay or sand. The probability of rock P(R) = 0.53. The clay probability is P(C) = 0.21. The sand probability is P(S) = 0.26. It if it rock, a geological test gives a positive result with 35% accuracy. If it is clay, this test gives a positive result with 48% accuracy. The test gives a 75% accuracy for sand. Given the test is positive, what is the probability that soil is rock, P(rock | positive)?
A. P(rock | positive) = 0.405 B. P(rock | positive) = 0.385 C. P(rock | positive) = 0.53 D. P(rock | positive) = 0.209
The height y (in feet) of a punted football is given by
?
?
where x is the horizontal distance (in feet) from the point at which the ball is punted.
What is the maximum height of the punt? (Round your answer to two decimal places.)
?
A. 123.61 B. 113.61 C. 103.61 D. 83.61 E. 93.61
Find the equation of the least squares line.The paired data below consist of the temperatures on randomly chosen days and the amount a certain kind of plant grew (in millimeters).
A. y = 14.6 + 0.211x B. y = 7.30 - 0.112x C. y = 7.30 + 0.122x D. y = -14.6 - 0.211x