Find the indicated trigonometric function for ?, given that ? is an angle in standard position with the terminal side defined by the given point.(-20, -48); find cos ?
A. - 
B. 
C. - 
D. - 
Answer: D
Mathematics
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Factor the expression completely, if possible.125x3 + 729
A. (5x - 9)(25x2 + 45x + 81) B. (125x + 9)(x2 - 45x + 81) C. (5x + 9)(25x2 - 45x + 81) D. (5x + 9)(25x2 + 81)
Mathematics
Rationalize the denominator.
A. 
B. 
C. 
D. 
- 
Mathematics
Answer the question.The table shows the number of pupils per teacher in selected states.
Which states have a figure that is at most 14.7?
A. Texas, Wyoming, Maine, Missouri B. Alaska, California, Idaho C. Alaska, Texas, California, Idaho D. Wyoming, Maine, Missouri
Mathematics
Write an equivalent expression using negative exponents.
A. 4-x+1 B. x-4 C. 4-x D. x4
Mathematics