Answer:
Step-by-step explanation:
(2x^2-x)+(x^2+3x-1)
2x^2-x+x^2+3x-1
x^2+3x-1
5x^2+2x-1+(4x^2-x+2)
5x^2+2x-1+4x^2+x-2
9x^2+6x-3
(3x^2+2x+1)+(x^2-1)
3x^2+2x+1+x^2-1
4x^2+2x
-x^2-1+(4x^2-x)
-x^2-1+4x^2-x
3x^2-1-x
Answer:
sum of interior angle of triangle is 180°
therefore, 81°+37°+X=180°
118°+X =180°
X=180°-118°
X=62°
k+x=180°
k+62°=180°
k=180°-62°
k=118°
hence proved
OR
the sum of 2 interior angle is equal to a exterior angle,so 81°+37°=k
118°=k
Hope it will help you.
<span>Well divide
<span> 2 x 10^-4 and 1 x 10^-5 </span>to get 2 x 10^1</span>
Answer:
-22
Step-by-step explanation:
-18 - 4 =
We are subtracting both number so add them and then give them a negative sign
-( 18+4)
-22