Basically you have to prove why it is correct that if two lines are perpendicular to the same line they are parallel. I think I don't remember learning this. Good luck!
Answer:
.2 and 1.8
Step-by-step explanation:
If you graph the quadratic, can find where y = 0 or where the graph intersects the x-axis.
you can also use the quadratic formula to solve this problem.
This situation can be represented by
y = 33x + 223
y = 32x + 239
I still like substitution, so let’s plug in 33x + 223 into the second equation
33x + 223 = 32x + 239
Move the terms into appropriate sides
33x - 32x = 239 - 223
Combine like terms
x = 16
Then plug in x for any equation
y = 32(16) + 239
y = 751
Erin will have to swim 16 laps for a total of 751 meters
if they run 46.93 in 1 second multiply that by 1.8
46.93 x 1.8 = 84.474 feet
round the answer as needed