Solve the problem.In a certain animal species, the probability that a female will have 0, 1, 2, 3, or 4 offspring in a given year is .31, .21, .19, .17, and .12 respectively. Find the expected number of offspring.
A. 2
B. 1.38
C. 1.75
D. 1.58
Answer: D
Mathematics
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Sketch the graph of the parametric equations. Then set up the appropriate integral to find the length of the curve and use a computer to evaluate it.x = 2 sin t, y = 2 cos t, 0 ? t ? 2?
A. L = 5?
B. L = 5?
C. L = 2?
D. L = 4?
Mathematics
Given the radius, r, of a circle, find the diameter; or given the diameter, d, of a circle, find the radius.d = 2.6 in.
A. r = 5.31 in. B. r = 1.3 in. C. r = 0.65 in. D. r = 4.082 in.
Mathematics
Find the indicated limit, if it exists.
?
?
A. 
?
B. 
C. 
D. 
E. The limit does not exist.
Mathematics
Solve the system by the elimination method. x + 5y = 45-3x + 6y = 54
A. {(-9, 0)} B. {(0, 9)} C. {(1, 8)} D. ?
Mathematics