Answer:
a. 41.5
b, 26.5
Step-by-step explanation:
a.
2x + 6 = 180
2x = 172
x = 86
b.
2x+ 90 +26+11 = 180
2x+127 = 180
2x = 53
x = 26.5
Answer:
1,YES 2,NO 3,YES 4,YES 5,NO 6,NO
☘️HOPE THIS HELPS! ☘️
Step-by-step explanation:
Triangle ABC is equilateral, because AB=BC=AC=a. Then
m∠A=m∠B=m∠C=60°.
Let point D lie on the ray BC to the right from points B and C and let CD=x. Then BD=a+x, AB=a.
Consider triangle ACD. In this triangle, m∠ACD=180°-m∠ACB=180°-60°=120°.
By the cosine theorem,

Since
then

and

Therefore, you get double inequality
or 
Factored Form:
f(x) = (x - 2) (x - 8)
Standard Form:
f(x) = x^2 - 10x + 16
Answer: I think its 2.29
Step-by-step explanation: