Answer: 
Step-by-step explanation:
We can rewrite the left hand side as a perfect square, more specifically
So, taking the square root of both sides,
Answer:
the second one to the right
Step-by-step explanation:
the first one makes a square
the third sides are too tiny
the last one just doesnt make anything
Answer:
You would just plug in the x’s for the equations above and that will equal your x
Step-by-step explanation:
for example x=1
the equation is x+5
so y equals 1+5=6
y=6
Answer:
0.5 and 2?
4
mph
1.5 and 2.5?
5
mph
Base on these results, the runner ran at a rate between 0.5 and 2 hours than between 1.5 and 2.5 hours.
slower
Step-by-step explanation:
