Answer:
12
Step-by-step explanation:
the angles of a triangle all add up to 180
thus, we can combine every term given and set them equal to 180 and solve for x

R mean radius and d mean diameter so C mean circumference ? please clearifie these - thank you
1. 5x+ 2(x+6)
= 5x+ 2x+ 2*6 (distributive property)
= 5x+ 2x+ 12
= (5x+ 2x)+ 12 (combine like terms)
= 7x+ 12
The correct answer is C. 7x+12~
2. <span> -3m + 3(m + 6)
= -3m+ 3m+ 3*6
= -3m+ 3m+ 18
= (-3m+ 3m)+ 18
= 18
The correct answer is D. 18~</span>
Answer:
X=10
A=84
Step-by-step explanation:
5x+34+2x+76=180
7x+110=180
7x=70
x=10
For A
5(10)+34
84