Based on the figure, select all true equations. A: cos(42°)= b/c
B: cos(48°)= b/c
C: sin(42°)= b/c
D: sin(48°)= b/c
E: tan(42°)= b/a
F: tan(48°)= a/b

Acylinder and its dimensions are shown. which equation can be used to find v, the volume of the cylinder in cubic centimeters?

Parabolas y=−2x^2 and y=2x^2 +k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.

Adesigner charges a one time fee of $200 plus $40 an hour for each project. write an expression to represent how much money the designer will make for a project