Find the largest open interval where the function is changing as requested.Decreasing f(x) = x3 - 4x
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Solve the problem.Find all points on the cardiod r = a(1 - cos ?) where the tangent line is horizontal.
A. 
, 
B. 
, 
C. 
, 
D. 
, 
Mathematics
Use Simpson's Rule with n = 4 steps to estimate the integral.
A. 1
B. 
C. 2
D. 4
Mathematics
Evaluate the expression for the given replacement value.x ? 28, for x = 9
A. 252 B. 352 C. 182 D. 197
Mathematics
Find the reference angle for the given angle.
A. 
B. 
C. 
D. 
Mathematics