Use the graph of the parabola to determine the coordinates of the vertex.
A. (3, 0)
B. (0, -3)
C. (0, 3)
D. (-3, 0)
Answer: D
Mathematics
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Decide whether or not the events are commutative.Setting the table and eating dinner.
A. No B. Yes
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Solve.The equation ? = cos-1(R/Z) gives the phase angle between R and Z in an AC circuit. Find ? if R = 40 ohms and Z = 60 ohms.
A. 48.2° B. 0.7° C. 41.8° D. 131.8°
Mathematics
Centripetal acceleration. In circular motion, a centripetal acceleration of a point is inversely proportional to the radius of the circle along which the point moves. Let the centripetal acceleration for some moving point be  figure 1.png)
when the radius of the circle is 6meters. What will the acceleration be if the point moves along the circle of radius 11meters?
 figure 2.png)
Mathematics
Solve the equation. 3(3-x) = -5
Mathematics