What is the x for each problem: x=3 x=11 x=1/2 0.8x + 5 = 0.2(40 - x) 2(x - 5) + 7 = x + 8 6(x + 2) - x = 4(x + 4) + 7 5(x - 1) - 6x = -11x 3x + 3 = 2(x + 7) 1/2(x+8)+3/2x=10 1/2x+1/4= x

dont know

step-by-step explanation:

answer: the angel abc is 30°,and the abc is a triangle where the angel bac is 90°

so ac is the half of 24=12ft,and from the pythagorean theorem we find ba

ba=√bc^2-ac^2=√576-144=√432=12√3ft

so bac is 12+12√3=12(1+√3)ft