Solve the problem.A student is told to work any 7 out of 10 questions on an exam. In how many different ways can he complete the exam? (The correctness of his answers has no bearing.)
A. 120
B. 10,000,000
C. 720
D. 21
Answer: A
Mathematics
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Write the equation of a sine function that has the given characteristics.The graph of y = 
, shifted 3 units downward
A. y = 
B. y = 
+ 3
C. y = 
D. y = 
- 3
Mathematics
Perform the indicated operation and simplify. 
+ 
A. 
B. 3
C. 
D. 
Mathematics
Determine whether the graph represents a function.
A. Yes B. No
Mathematics
Simplify the expression. Assume that all variables represent positive real numbers.(-64)2/3
A. -4 B. -16 C. 16 D. Not a real number
Mathematics