Write the number in words.64,568,009
A. Sixty-million, five thousand sixty-eight
hundred, nine
B. Sixty million, forty-five thousand, sixty-eight
hundred and nine
C. Sixty-four million, five hundred thousand,
sixty-eight hundred, nine
D. Sixty-four million, five hundred sixty-eight
thousand, nine
Answer: D
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Solve by trial.y ? 2 = 10
A. 6 B. 5 C. 4 D. 0
Find the area of the region specified in polar coordinates.the smaller loop of the curve r = 3 + 6 sin ?
A. 
(2? + 3
)
B. 
(2? + 3
)
C. 
(2? - 3
)
D. 
(2? - 3
)
Solve.A rock falls from a tower that is 107.8 m 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. 2400 sec B. 10.4 sec C. 22.1 sec D. 4.7 sec
Eliminate the parameter t in the following:
?
?
A. 
, 
, 
B. 
, ,
C. 
, ,
D. 
, ,
E. 
, ,