Answer: They are neither
Step-by-step explanation:
Parallel lines have the same slope, but different y-intercepts. If they have the same slope and y-intercepts they are the same line.
Perpendicular lines have opposite reciprocal slopes.
Example:
The line perpendicular to this is: 
not 
(y-intercepts don't matter for perpendicular lines)
Answer:
√40 ≈ 6.32
√75 ≈ 8.66
√90 ≈ 9.49
√245 ≈ 15.65
√450 ≈ 21.21
√640 ≈ 25.30
√675 ≈ 25.98
Step-by-step explanation:
You can use your calc or estimate your answer by simplifying (like √640 is 8√10, and estimate the square root of 10). However, getting decimals will require you to use a calc.
Answer:
11x-10y
Step-by-step explanation:
Combine like terms.
(5x+3y)-(2x-7y)+8x
3x + 8x
Remember to distribute the negative.
-(-7y) = +7y
3y +7y
Combine like terms once again.
3x+8x= 11x and 3y+7y= 10y
Answer: I think it is 19.92
He can make 3 packs of 14 baseball cards and 5 packs of 14 football cards.
