Joshua used two wood beams, pc and qa, to support the roof of a model house.
the beams intersect each other to form two similar triangles qrp and arc as shown in the figure below.
the length of segment pr is 1.8 inches and the length of segment cr is 3.3inches. the distance between a and c is 6.6 inches.
what is the distance between the endpoints of the beams p and q? (picture below)
a)0.9 inches
b)1.8 inches
c)2.5 inches
d)3.6 inches

Ftara spends $219 a month for her car payment and she makes $3,200 a month, what percent of her monthly income is spent on her car payment?

On traditional maps, earth is represented in a flat plane, or by euclidean geometry. however, a globe is a more accurate model that comes from elliptical geometry.how does a globe represent the fact that there are no parallel lines in elliptical geometry? the equator is not parallel to any other latitudinal lines. the north and south poles are never connected by a geodesic. the geodesics connecting the north and south poles never intersect. the geodesics connecting the north and south poles intersect at both of the poles.

How can constraints be used to model a real-world situation?