Solve the problem.A pulley of radius 15 cm rotates 5 times in 64 sec. Find the angular velocity of the pulley.
A. 
radians/sec
B. 
radians/sec
C. 
radians/sec
D. 
radians/sec
Answer: D
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Evaluate the expression.-(-23)
A. 8 B. -8
Use the determinant feature of a graphing calculator to solve the system by Cramer's rule . (Round to one decimal place.)1.5x - 0.3y - 4.8z = -1.45.4x - 7.0y + 1.7z = -5.04.8x - 1.7y + 0.7z = 11.0
A. {(6.8, 7.2, 2.3)} B. {(13.6, 14.5, 4.5)} C. {(3.4, 3.6, 1.1)} D. {(27.3, 28.9, 9.0)}
Solve.A game show awards points to contestants based on how many rounds the contestants make it through. For the first 15 rounds, contestants get p points per round. After that, they get twice as many points for each additional round they pass. During one episode of the show, x contestants made it through 15 rounds, and y contestants made it through 20 rounds. Find an expression in factored form for the total number of points awarded during that episode.
A. 5p(3yp + 5xp) points B. 5p(3x + 5y) points C. 15p(3x + 2y) points D. 5(3xp + 5yp) points
Refer to right triangle ABC with 
.
?
?
If 
and 
cm, find b.
?
Round the answer to the nearest hundredth.
?
A. 2.12 cm
B. 2.27 cm
C. 2.18 cm
D. 2.21 cm
E. 2.33 cm