Simplify. Remember that we have assumed that radicands do not represent the square of a negative number.
A. 
+ 
B. 5y - 5
C. 
- 
D. 25y2 - 50y + 25
Answer: B
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Solve.A rock falls from a tower that is 208 ft high. As it is falling, its height is given by the formula 
How many seconds will it take for the rock to hit the ground (h=0)? Round to the nearest tenth.
A. 14.4 sec B. 3.6 sec C. 2,704 sec D. 13 sec
Solve the problem.If sin ? = - 
, and 
< ? < 2?, then find tan 2?.
A. 
B. - 
C. - 
D. 
Write < or > between the pair of numbers to make the statement true.9 0
A. < B. >
Solve the problem. Use 3.14 as the approximate value of ?. Round to the nearest tenth,if necessary.The foundation for a cylindrical flower bed is a cylinder 
in. in diameter and 
in. high. How many cubic in. of concrete are needed to build the foundation?
A. 759.9 in.3 B. 3039.5 in.3 C. 1519.8 in.3 D. 276.3 in.3