Determine whether the following is the graph of a function.
A. Yes
B. No
Answer: B
Mathematics
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Write the number in expanded form.8,486
A. (8 ? 104) + (4 ? 103) + (8 ? 102) + (6 ? 101) B. (8 ? 101) + (4 ? 102) + (8 ? 103) + (6 ? 104) C. (8 ? 103) + (4 ? 102) + (8 ? 101) + (6 ? 100) D. (8 ? 100) + (4 ? 101) + (8 ? 102) + (6 ? 103)
Mathematics
Rationalize the denominator of the expression. Assume that all variables represent positive real numbers. 
A. 14
B. 2
C. 7
D. 2
Mathematics
Find the quadratic approximation of f at x = 0.f(x) = tan-1 10x
A. p2(x) = 1 + 10x2 B. p2(x) 1 + 5x2 C. p2(x) = 10x D. p2(x) = 1 - 10x2
Mathematics
Provide an appropriate response.Use a graphing calculator to find all real roots of the given function. Round answers to two decimal places, if necessary: 
Fill in the blank(s) with the appropriate word(s).
Mathematics