Find the derivative.y = 
A. 10x9 cos (x5)
B. -10x9 cos (x5)
C. -sin (x5)
D. 1 - cos (x5)
Answer: B
Mathematics
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Use the Gauss-Jordan method to find A-1, if it exists.A = 
A. 
B. 
C. 
D. Does not exist
Mathematics
Solve the problem.There are 7 women running in a race. How many different ways could first, second, and third place finishers occur?
A. 35 B. 210 C. 343 D. 21
Mathematics
For the point given in rectangular coordinates, find equivalent polar coordinates 
for 
and 
(-4, 4
)
A. (16, 120°) B. (4, 300°) C. (8, 160°) D. (8, 120°)
Mathematics
Identify if the whole number is prime or composite.42
A. Composite B. Prime
Mathematics