Use the stay, change, flip method.
keep the first fraction the same, change the division to multiplication and flip the last fraction. you may then have the opportunity to cross simplify.
Answer:
1/3
Step-by-step explanation:
slope of line f (m) = -3
Slope of perpendicular line to f m1 = -1/m = -1/-3 = 1/3
Answer:
B
Step-by-step explanation:
Triangle B because 128°>90°
The slope-point formula:

We have (3, -5) and (-8, 4).
Substitute:

Answer:
1.7
Step-by-step explanation: