it is b -30 plz give me brainlist
d) x=-12 because x/-3=4 can be rearranged as x=4x-3 so x=-12
Answer:
D
Step-by-step explanation:
Ladder makes a right triangle with the wall and ground. The hypotenuse = length of the ladder = 10 ft
Let the height be h
By Pythagorean theorem
10^2 = 3^2 + h^2
h^2 = 10^2 - 3^2 = 100 - 9 = 91
h = sqrt( 91) = 9.54 ft
