Answer:
15
Step-by-step explanation:
3 2/4+ 2 3/4+ 2 3/4+ 2 1/4+ 1 1/4+ 1
first add the whole numbers so 3+2+2+2+1+2=12
then we are left with the fractions. 11/4 divides into 2 with a remainder of three so we add it to the top.
From here we have 2/4+3/4+3/4+1/4+3/4
add them together and we get 12/4=3. Then add back our whole numbes to get 12+3=15
(f - g(x) = 2x -2x squared
(sorry didn't know how to do the squared sign )
Answer:
Pythagorean theorem 
Step-by-step explanation:
Answer:
The unknown angle is 80
Step-by-step explanation:
The sum of the angles of a triangle add to 180 degrees
Let the unknown angle be x
20+80+x = 180
Add like terms
100+x = 180
Subtract 100 from each side
100-100+x=180-100
x = 80
