Solve the problem.From a distance of x feet to a 120-meter-high radio tower, the angle of elevation is ? degrees. Then 
Use a reciprocal identity to rewrite this formula.
A. 120 sec ?
B. 120 cot ?
C. 
D. 
Answer: B
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In the illustration, quadrilaterals ABCD and WXYZ are similar rectangles. AB = 25, BC = 20, and XY = 20. Find YZ.
?
?
A. YZ is equal to 15. B. YZ is equal to 16. C. YZ is equal to 15.5. D. YZ is equal to 21. E. YZ is equal to 19.
Multiply.(3s2 - 5s - 4)(s2 + 4s + 5)
A. 3s4 + 7s3 - 9s2 - 41s - 20 B. 3s4 + 12s3 - 5s2 - 41s - 20 C. 3s4 + 7s3 - 5s2 - 41s - 20 D. 3s4 + 12s3 - 9s2 - 41s - 20
Answer the question or write an explanation.Can an equation of a vertical line be written in slope-intercept form? Why or why not?
What will be an ideal response?
Perform the indicated operations. Write the resulting polynomial in standard form.(2x6 + 2x5 + 3) - (7x6 - 11x5 - 20)
A. -5x6 + 13x5 + 23 B. -5x6 + 13x5 - 17 C. -5x6 + 9x5 - 17 D. 31x11