Solve the problem.The annual rainfall in Maine is a random variable with probability density function defined by 
for x in 
Find the probability that the rainfall is greater than the mean.
A. 0.553
B. 0.512
C. 0.500
D. 0.549
Answer: A
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Write an equation to represent the problem.Markus Lawson is 2 years older than three times Pam Lincoln's age. The sum of their ages is 64. Let a represent Pam's age.
A. a - (3a + 2) = 64 B. a + (3a + 2) = 64 C. a + (3a - 2) = 64 D. a + (a + 32) = 64
Solve the problem.The following data represents the normal monthly precipitation for a certain city in California. 
Draw a scatter diagram of the data for one period. Find a sinusoidal function of the form 
that fits the data. Draw the sinusoidal function on the scatter diagram. Use a graphing utility to find the sinusoidal function of best fit. Draw the sinusoidal function of best fit on the scatter diagram.
What will be an ideal response?
Find the length of the arc intercepted by a central angle ? in a circle of given diameter or radius. Round your answer to as many places as your calculator will allow.Radius 23.4 m, ? = 
radians
A. 29.4053072 m B. 9.36 m C. 58.5 m D. 183.78317 m
Fill in the blank with one of the words or phrases listed below. 
If a2 = b, then a = 
.
A. (h, k)
B. ±
C. 
D. quadratic