(11,1) because if you plug in x and y this answer is the only one that gives you 18 in the end
Step-by-step explanation:
1.3×2×a×b
=6ab
2.c5×c
=c5+1
=c6
3.2y4×5y3
=10y4+3
=10y7
4.3gh2×4g3h3
=12g1+3h2+3
=12g4h5
Let's use a formula in order to find how much the interior angles are supposed to add up to.
(n-2)×180; n is the number of angles.
(5-2)×180= 3×180=540
We need for the interior angles to add up to 540. Let's make an equation.
100+102+108+121+x=540
431+x=540; let's find x.
540-431= 109
So, X= 109°
Step-by-step explanation:
-9×(-87)=783
783÷(-9)=-87
Answer:
-t
Step-by-step explanation:
t - 5 - 2t + 5 =
t - 5 + 5 - 2t =
t - 2t =
-t
