In the figure above, right triangle PQR is similar to right triangle XYZ, with
vertices P, Q, and R corresponding to vertices X, Y, and Z, respectively.
If cos R=0.263, what is the value of cos Z?

In pqr the obtuse angle is 105 and the shorter sides measure 4 and 7 units rounded to the nearest tenth what is the area of triangle pqr

Suppose the radius of a circle is 16. what issuppose the radius of a circle is 16. what is its circumference its circumference

Afurniture manufacturer produces chairs and sofas. each chair requires 10 yards of fabric, and each sofa requires 20 yards of fabric. the manufacturer has 300 yards of fabric available. to fulfill orders, the number of sofas must be at least twice the number of chairs. let x be the number of chairs and y the number of sofas. which inequalities are described in the problem? check all of the boxes that apply