Find the standard deviation. Round to one more place than the data.17, 12, 10, 13, 5, 17, 7, 6, 9
A. 4.4
B. 1.3
C. 4.2
D. 4.8
Answer: A
Mathematics
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Set up the iterated integral for evaluating 
over the given region D. DD is the right circular cylinder whose base is the circle 
in the xy-plane and whose top lies in the plane 
.
A. 
B. 
C. 
D. 
Mathematics
Simplify the rational expression.
A. 
B. 
C. 
D. 
Mathematics
Find the sign of the six trigonometric function values for the given angle.-4°
A. Positive: sine and cosecant; negative: cosine, tangent, cotangent, secant B. Positive: tangent, cotangent; negative: sine, cosine, secant, cosecant C. Positive: all D. Positive: cosine and secant; negative: sine, tangent, cotangent, cosecant
Mathematics
Find the largest open intervals where the function is concave upward.f(x) = x2 + 2x + 1
A. (-?, -1) B. None C. (-1, ?) D. (-?, ?)
Mathematics