The correct answer is a
(X+1)^2 - x^2=23
X^2 + 2x + 1 -x^2 =23
2x +1 =23
2x =22
X= 11
X+1= 12
The answer is D.(1,-1) the reason is -1(y)-2*1(x)=-3 so, -1-2*1 is less than or equal to -3.
I'm sorry but I don't understand what "distributive property" and "properties of equality" means - English isn't my native language.
But the value of x is 30
0,5 * (30 + 6) = 18
It will be the sum of any two no. Which will give ans as 180 so i will conclude 90+90
Or 90 marks in both exams
