2 ok I am doing this cause I can not answer with out 20 words so that should be good now
4x3=12 the poster is 12 feet^2 but now you have to convert it into inches. 12 inches=1 foot so you multiply 12x12 =144 so the poster is 144in^2
Answer:
The value of 11+x at x=12 will be 23.
Step-by-step explanation:
Given the expression
As we have to evaluate the expression at x=12
so substitute the value x=12 in the expression



Therefore, the value of 11+x at x=12 will be 23.
Answer:
αβ=c/a
α+β=-b/a
α+β=-k/2
-(α+β)²=k
-α²-2αβ-β²=k
-α²-2(1/2)-β²=k
-α²-1-β²=k
Step-by-step explanation: