Simplify. Assume that all variables represent positive real numbers.
A. -9
B. -81
C. 9
D. 81
Answer: A
Mathematics
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Solve the problem.Molly has $13.30 in coins. She has five more nickels than dimes. She has seven fewer quarters than dimes. How many quarters does she have?
A. 42 quarters B. 37 quarters C. 30 quarters D. 35 quarters
Mathematics
Simplify by factoring out the given factor.x-7 - 7x-5; x-7
A. x-7(1 + 7x4) B. x-7(x - 7x3) C. x-7(x - 7x2) D. x-7(1 - 7x2)
Mathematics
Solve the equation for x, where x is restricted to the given interval.y = 3 tan 2x - 1, for x in 
A. x = 
arctan 
B. x = 
arctan (3y + 3)
C. x = 2 arctan (3y + 3)
D. x = 2 arctan 
Mathematics
State whether the graph is that of an arithmetic sequence or a geometric sequence.
A. Arithmetic B. Geometric
Mathematics