Determine the symmetries of the curve.r = 9 cos 5?
A. y-axis only
B. x-axis, y-axis, origin
C. Origin only
D. x-axis only
Answer: D
Mathematics
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Find all the local maxima, local minima, and saddle points of the function.
A. f
= 15, saddle point; f
= 15, saddle point
B. f
= 15, saddle point
C. f
= - 45, local maximum
D. f
= 15, local minimum; f
= 15, local minimum
Mathematics
Solve the problem. Round to the nearest hundredth, if necessary.The average middle-distance runner at a local high school runs the mile in 5.8 minutes, with a standard deviation of 0.2 minute. Find the percentage of a runners that will run the mile in less than 5.5 minutes?
A. 93.32% B. 6.68% C. 30.85% D. 69.15%
Mathematics
Find the indicated matrix.Let A = 
and B = 
. Find AB.
A. 
B. 
C. 
D. 
Mathematics
Find the slope of the line.
A. 
B. 
C. - 
D. - 
Mathematics