Answer:
#3- a^2 +2ab +b^2
#4- a^2 -b^2
Step-by-step explanation:
Answer:
-2 , 0 , 2
Step-by-step explanation:
HOPE THIS HELPS
PLZZ MARK BRAINLIEST
523.6 m3 i hope this helps mark me as brainliest
First set up your two equations:
x + y = 90
x = 2y - 30
Then substitute what x equals in the second equation into the first equation:
(2y -30) + y = 90
Now solve for y:
3y -30 = 90
3y = 120
y = 40
Then use y = 40 and substitute the value for y into one of your original equations and solve for x. I'll choose the first one, but either one will work.
x+ 40 = 90
x = 50
So your solution is x = 50 and y = 40
Answer:
16
Step-by-step explanation:
adding any two sides of a triangle is allways greater than the third side
