Determine whether the equation defines y as a function of x. -9x + x2 - 97 = y
A. function
B. not a function
Answer: A
Mathematics
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Find the exact circular function value.tan 
A. 1 B. undefined C. 0 D. -1
Mathematics
Find the product.(2x + 5)(5x - 10)
A. 7x2 + 5x + 5 B. 10x2 + 5x + 5 C. 10x2 + 5x - 50 D. 7x2 + 5x - 50
Mathematics
Simplify. Assume that all variables represent positive numbers.
A. 81x4
B. x2
C. 9x2
D. 9x4
Mathematics
Use the meaning of the symbols ? and ? to determine whether the statement is true or false.-32 ? { x | x is a whole number}
A. True B. False
Mathematics