TRIG-PLEASE HELP If cos A = 4/5, then what is the positive value of tan 1/2 A, in simplest radical form
with a rational denominator?

Which expression is equivalent to -5(3x - 6/7)

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?

Tamar is measuring the sides and angles of tuv to determine whether it is congruent to the triangle below. which pair of measurements would eliminate the possibility that the triangles are congruent