Answer:
u
Step-by-step explanation:
it is undefined because its a vertical line.
25. yes it's direct variation
26. yes
Given:
In triangle ABC, AB = 30, BC = 16, AC = 34 and measure of angle B is 90 degrees.
To find:
The value of Sine of angle A.
Solution:
In a right angle triangle,

In the given triangle ABC,



Therefore, the correct option is A.
m + 4 = 5m - 12
Subtract m from both sides.
4 = 4m - 12
Add 12 to both sides
16 = 4m
Divide both sides by 4
m = 4