Determine whether the sequence is geometric.an = 4
n
A. Geometric
B. Not geometric
Answer: A
Mathematics
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Simplify the expression. Assume all variables represent nonnegative real numbers. Write the answer in exponential form when necessary.(x-5/4y5/7)1/2
A. x5/8y5/14
B. 
C. x-3/4y17/2
D. -x5/8y5/14
Mathematics
If possible, evaluate the expression by hand. If not, approximate the answer to the nearest hundredth.
A. 3.47 B. 3.87 C. -45 D. 2.47
Mathematics
The vectors u, v, and w are drawn below. Sketch the given vector. 
u - w
A. 
B. 
C. 
D. 
Mathematics
Find all solutions to the equation.cos x = sin x
A. 
B. 
C. 
D. 
Mathematics