Determine the angle between u and v. Give the angle in degrees rounded to the nearest tenth of a degree.u = 9i + 5j, v = -6i + 7j
A. 101.5°
B. 40.8°
C. 111.5°
D. 50.8°
Answer: A
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Solve the problem that involves probabilities with independent events.A card is drawn from a 
deck and a fair coin is flipped. What is the probability of getting a ten and heads?
A. 
B. 
C. 
D. 
Find the specified quantity.Find the amplitude of y = -2 cos 
.
A. 
B. 2
C. 3
D. -6
Find the median of the random variable x with the probability density function defined on the indicated interval I. The median of x is defined to be the number m such that 
. Observe that half of the x-values lie below m and the other half lie above m.
?
?
__________
Fill in the blank(s) with the appropriate word(s).
In a batch of 13 tires, 3 are known to be defective. If 4 tires are chosen at random, find the probability that all 4 tires are good. ? Please enter your answer as a fraction.
What will be an ideal response?