59. parabolic reflector a lamp with a parabolic reflector is shown in the figure.
the bulb is placed at the focus, and the
focal diameter is 12 cm.
(a) find an equation of the parabola.
(b) find the diameter d(c, d) of the opening, 20 cm from the vertex.

Question 13 (1 point) jerome is starting a new job. his contract states he will earn $42,000 the first year, and will get a 4% raise per year. which function s(x) represents jerome's salary after a certain number of years, x?

How can writing phrases as algebraic expressions you solve problems?

Afarmer has decided to divide his land area in half in order to plant soy and corn. calculate the area of the entire area so he knows how much soil is needed. each bag of soil covers 20 square yards. how many bags should the farmer purchase? (4 points) 1 bag 2 bags 3 bags 4 bags