Provide an appropriate response.Tell whether the statement is true or false. If it is false, give the correct answer. Explain your answer. The easiest way to simplify the expression 
is to multiply both the numerator and denominator by 9 + 
What will be an ideal response?
False. The correct answer is to multiply numerator and denominator by the conjugate of the denominator, 9 - 
, so that, by using the product of the sum and difference of two numbers, the "middle term" of the product is zero.
Mathematics
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Provide an appropriate response.Graph y = sin-1(sin x). Explain why the graph looks like it does.
What will be an ideal response?
Mathematics
Use the half-angle formulas to simplify the given expression.
A. 
cos 2x
B. 3 cos 2x
C. 6 cos 2x
D. 3
cos 2x
Mathematics
If a survey determined that the "average" football player in the NFL was a black male, what kind of average is this?
A. mean B. median C. mode D. midrange
Mathematics
Find the sum.70.104 + 20.4 + 4.68 + 14.52
A. 109.704 B. 109.804 C. 110.704 D. 109.714
Mathematics