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What are the coordinates of the midpoint of the line segment joining P(-15, 17) and Q(23, 15)?

Solve by factoring: 3×2 +6x – 24 = 0

Solve the system. 3x + 4y = 55x – 4y = -13

To solve an acute triangle given 3 sides, you would use the

The sum of the interior angles of a triangle is

A line perpendicular to a line with the equation y=-4x+2, would have a slope of

Find the equation of the circle with a centre (0, 0) and a radius of 8 units.

If three sides of one triangle are respectively equal to three sides of a second triangle, the triangles are

An underground cable is going to be laid between points A(8, -21) and B(-10, 11). a)  If each unit represents 1 m, what length of cable will be needed?  Round your answer to the nearest metre. b)  An access point will be located halfway between the endpoints of the cable.  At what coordinates should the access point be built?

A triangle has vertices at P(1, 2), Q(-3, -1) and R(0, -5).  Use analytic geometry to show that the triangle is a right-angled triangle.