Solve the problem.Find the centroid of a hemispherical shell having outer radius 6 and inner radius 4 if the density varies as the square of the distance from the base.
A. 
= 0, 
= 0, 
= 
B. 
= 0, 
= 0, 
= 
C. 
= 0, 
= 0, 
= 
D. 
= 0, 
= 0, 
= 
Answer: B
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The limiting value of a rational function can be used to find a horizontal asymptote.
Answer the following statement true (T) or false (F)
Use regression to find a quadratic function that best fits the data. Give results to the nearest hundredth.
A. f(x) = 0.15x2 + 38.67x + 891.67 B. f(x) = 0.05x2 - 13.25x + 790.18 C. f(x) = 0.15x2 - 38.67x + 891.67 D. f(x) = 0.05x2 + 13.25x + 790.18
If a triangle has vertices of 
and 
then the area of the triangle is given by 
Find the area of the triangle with vertices at the given points.(1, -3) (1, 1) (4, 3)
A. 6 B. 2.5 C. 12 D. 5
Using the horizontal-line test, determine whether the function is one-to-one.f(x) = 
A. Yes B. No