They both are complementary angles i.e their sum must equals 90°
4x+ 31 + 6x + 39 = 90
10x + 70 = 90
10x = 90-70
10x = 20
x = 2
we have to find angle ADC
just put the value of x in that expression for that angle.
angle ADC = 6x + 39 = 6 (2)+39 = 12 + 39 = 51°
Use Pythagoras 6 squared =36-(4x4) =20 square root of 20 then times that by two
(n-4)(n+11) so pretty much B
pretty sure that the answer is 2 cuz
It would be c because you would subtract 13 on both side and the equation would be x - 13 = 16
