Plot the point having the given polar coordinates.(-2, 180°)
A. 
B. 
C. 
D. 
Answer: A
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Solve the problem.Robert has built a mechanical model solar system with three balls representing planets at the ends of rods attached to the center representing the sun. The planets are aligned when he turns on the motor. The innermost planet makes a revolution in 12 seconds, the middle planet makes a revolution in 20 seconds, and the outermost planet makes a revolution in 28 seconds. After how many seconds will the planets be aligned again?
A. 210 seconds B. 630 seconds C. 420 seconds D. 840 seconds
Determine whether the statement is true or false.
?
?The circle with equation
lies inside the circle with equation
provided
.
Answer the following statement true (T) or false (F)
Solve the problem.From 9 names on a ballot, a committee of 5 will be elected to attend a political national convention. How many different committees are possible?
A. 126 B. 3,024 C. 7,560 D. 15,120
Find the equation of the line through the given pair of points in standard form using only integers.(-5, 3) and (1, 6)
A. 3x - 6y = -33 B. 3x - 5y = -33 C. 6x - 6y = -33 D. 3x - 6y = -31