Write the standard form of the equation of the circle with the given center and radius.Center (7, -3), r = 
A. (x + 3)2 + (y - 7)2 = 4
B. (x + 7)2 + (y - 3)2 = 2
C. (x - 7)2 + (y + 3)2 = 2
D. (x - 3)2 + (y + 7)2 = 4
Answer: C
Mathematics
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Set up an integral for the length of the curve.y = 2 cot x, 
? x ? 
A. 
B. 
C. 
D. 
Mathematics
Find the center of mass of the thin rod with the given density function.Find the center of mass of a thin rod that lies along the semicircle y = 
if the density of the rod is 
A. 
= 0, 
= 
?
B. 
= 0, 
= 
?
C. 
= 
?, 
= 
?
D. 
= 
?, 
= 
?
Mathematics
Find the distance between the points 
and 
.
What will be an ideal response?
Mathematics
Use the product rule to simplify the expression. Assume that the variables can be any real number.
A. x3 B. x6 C. x4 D. 3x
Mathematics