A different wind turbine, shown in the diagram on the next page, has the centre of its blades, F.75 m from the base of the turbine, D.
Point E is on sloping ground, 180 m from F and 130 m from D.
Calculate the angle of depression of E from F.
75
180
130
Answer

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.

Solve each quadratic equation by factoring and using the zero product property. x^2 - 8x + 30 = 3x

3women sell hats at a craft fair weekly. the money they make at the fair is split into categories. 9% goes to pay taxes. $55 goes to pay rent for the space they sell in. the rest is split between the women. if the group make $706 at the fair, how much does each women get paid once the money is divided