Find the derivative of the function.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
Answer: E
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The centroid of a triangle lies at the intersection of the triangle's medians, because it lies one-third of the way from each side towards the opposite vertex. Use this result to find the centroid of the triangle whose vertices appear as following.(-2, 0), (2, 0), (0, 7)
A. (0, 
)
B. (0, 7)
C. (0, 
)
D. (0, 
)
Use the graph of the function f(x) to locate the local extrema and identify the intervals where the function is concave up and concave down.
A. Local minimum at x = 3; local maximum at x = -3 ; concave up on (0, -3) and (3, ?); concave down on (-3, 3) B. Local minimum at x = 3; local maximum at x = -3 ; concave up on (0, ?); concave down on (-?, 0) C. Local maximum at x = 3; local minimum at x = -3 ; concave up on (0, -3) and (3, ?); concave down on (-3, 3) D. Local minimum at x = 3; local maximum at x = -3 ; concave down on (0, ?); concave up on (-?, 0)
Solve the polynomial equation.x3 - 9x2 + x - 9 = 0
A. x = 9, -i, i B. x = -9, -i, i C. x = -9, 9, i D. x = -1, 1, 9
Decide whether the given replacement value is a solution of the given equation.Is - 
a solution of 
x = - 
?
A. Yes B. No