When lines are parallel, they have the same slope, so the statement "line a and line b have the same slope" is TRUE
When lines are perpendicular, the slopes are opposites (the sign and number is flipped)
For example:
slope is 2
perpendicular line's slope is -1/2
slope is -1
perpendicular line's slope is 1/1 or 1
slope is 4/5
perpendicular line's slope is -5/4
When you multiply(the product) perpendicular slopes together, they equal -1. Since line c is perpendicular to line a and line b, the product of their slopes is -1.(so this is true)
The statement "the sum of the slopes of line a and b is 0" is false because if they have the same slope, when added together the result would not be 0. The slopes of line a and line b is -2/3, so the sum would be -4/3.
Add 2x to both sides,
3x+9=18
Subtract 9 from both sides. 3x=9
Divide both sides by 3.
x=3
Answer:
7 hours
Step-by-step explanation:
174/3 is 58 miles per hour so 406/58 is 7 hours
Answer:
9
Step-by-step explanation:
cross multiply 7/63 by 1/x
so, multiply 7 by x and 63 by 1
you get 63=7x
divide by 7 on both sides and you get 9