Answer:
Step-by-step explanation:
for nr. 1
sum of angles in a triangle=180
x=180-(81+84)=15
acute triangle
for nr.2
x=180-(24+36)=120
obtuse triangle
The anwser is 17 and 3. 17+3=20, and the difference is 14!
Distribute -2(x - 3)
4x - 2x + 6 = 10 + -9
Simplify
2x = -5
x = -2.5
Interval notation
(-infinity sign, 1)
Set-builder notation
{x|x less than equal to 1}
Answer:
What's the question?
Step-by-step explanation: