Express the graph shown using interval notation. Also express it as an inequality involving x.
A. (-4, ?)
x > -4
B. (-?, -4)
x < -4
C. (-?, -4]
x ? -4
D. [-4, ?)
x ? -4
Answer: C
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Solve the problem by writing an appropriate system of equations and using the inverse of the coefficient matrix to solve the system.The sum of the angles of a triangle is 180°. The largest angle is the sum of the smaller two angles and is 30° more than twice the smallest angle. What is the measure of the smallest angle?
A. 45° B. 17° C. 30° D. 90°
Solve the system, if possible.
?
What will be an ideal response?
Find the mean. If necessary, round to one decimal place.30, 51, 73, 14, 140, 66
A. 62.3 B. 74.8 C. 62.8 D. 61.8
Identify the conic section that the polar equation represents. Describe the location of a directrix from the focus located at the pole.r =
A. parabola; The directrix is 1 unit(s) above the pole at y = 1. B. parabola; The directrix is 1 unit(s) to the right of the pole at x = 1. C. parabola; The directrix is 1 units below the pole at y = -1. D. parabola; The directrix is 1 unit(s) to the left of the pole at x = -1.