Aright triangle △abc with right angle c is inscribed in a circle. find the radius of this circle if:
a
given m∠c = 90°, k(o, r) inscribed in △abc, ac = 8 cm, bc = 6 cm. find r.

The value of x in this system of equations is 1. 3x + y = 9 y = –4x + 10 substitute the value of y in the first equation: combine like terms: apply the subtraction property of equality: apply the division property of equality: 3x + (–4x + 10) = 9 –x + 10 = 9 –x = –1 x = 1 what is the value of y?