The figure is a circle with centre O and a chord PQ subtending an angle of 70° at the centre, O.
The value of the angle marked θ is:
20°.
55°.
35°.
70°.
The figure represents a Cartesian plane.
The quadrant in which Q is found is:
3rd quadrant.
4th quadrant.
2nd quadrant.
1st quadrant.
The lines with equations y = m₁x + c and y = m₂x + k are perpendicular if:
2m₁ = m₂.
m₁m₂ = 1.
m₁ = m₂.
m₁m₂ = -1.
The y-intercept of the line 3y + 4x = 12 is:
7.
-4.
3.
4.
The middle quartile of a cumulative frequency curve is at the:
100th percentile.
50th percentile.
25th percentile.
75th percentile.
