Solve the equation.
+ 
= 4
A. {-2}
B. {2, -2}
C. {
, -2}
D. {0}
Answer: A
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Express the set using set-builder notation. Use inequality notation to express the condition x must meet in order to be a member of the set.A = {400, 401, 402, . . ., 4000}
A. {x | x ? N and x ? 400 } B. {x | 400 < x < 4000} C. {x | x ? N and x ? 4000} D. {x | x ? N and 400 ? x ? 4000}
Write a system of equations associated with the augmented matrix. Do not try to solve.
= 
A. 2x + y = -3 x + 2y = 2 -5x - 5y = 2 B. 2x + y + z = -3 x - 5y = 2 C. 2x = -3 x + y = 2 -5x - 5y = 2
Solve the problem.A ball on the end of a string is spinning around a circle with a radius of 5 centimeters. If in 
a central angle of 
radian has been covered, what is the angular speed of the ball?
A. 3 radians per sec
B. 
radians per sec
C. 75 radians per sec
D. 
radian per sec
Simplify:
