Answer:
x = 9
Step-by-step explanation:
since the terms are in AP then there is a common difference between consecutive terms, that is
a₂ - a₁ = a₃ - a₂ ( substitute values )
x - 7 = 11 - x ( add x to both sides )
2x - 7 = 11 ( add 7 to both sides )
2x = 18 ( divide both sides by 2 )
x = 9
The slope of the graph is 1/2
( square root 2) + 2
= 2+ square root 2
I hope that's help ! If you have questions please just let me know
I figured out that number 4 is probably alternate angles. Sorry I couldn't be much help :)
Step-by-step explanation:
The answer is 72
