Answer:
16
Step-by-step explanation:
-21x+121
x=5
substitute x
-21(5)+121=-105+121=16
A 90º degree angle is a right angle. Anything below is an acute angle and anything more than 90º is an obtuse angle.
So what is the question you are asking here
Answer:
A) -7/9
Step-by-step explanation:
-4(x + 4x) = 2(2 - x) + 10
-4x - 16x = 4 - 2x + 10
-4x - 16x + 2x - 4 - 14 = 0
-18x -14 = 0
-18x = 14
x = - 14/18
x = - 7/9