Calculate the area of triangle CDE with altitude EF, given C (3,-2), D (-1, 2), E (2, 3), and F (0.1).

4 Square Units

6.2 Square Units

8 Square Units

8.7 Square Units

Given a(-12,5) and b(12,29) find the point that divides the line segment ab three-eighths of the way from a to b

Asystem of equations has 1 solution. if 4x-y=5 is one of the equations , which could be the other equation ?

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.