What is the length of Line segment B C? Round to the nearest tenth.

6.(q^9)^2 a. 2q^18 b. q^18 c. q^81 d.q^11 7.(6q^6)^-4 a. 6q^1296 b. 1296q^2 c. 1/1296q^24 d. 6q^-24 8. what is the value of 12x^-3 y^-1 for x = -1 and y = 5? a. -12/5 b.-10 c.-0 d.5/12

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8