Answer:
2
Step-by-step explanation:
change it to slope intercept form
2x-y=1
add y
2x=y+1
subtract 1
2x-1=y
reorder
y=2x-1
so the slope is 2
Answer:

Step-by-step explanation:
Given
tan x =
, then
x =
(
) = 60° ← related acute angle
Since 180° < x < 270° and tan x > 0 then x is in third quadrant
x = 180° + 60° = 240°
and
sin(x - 210)°
= sin(240 - 210)°
= sin30°
= 
Answer:
84 km
Step-by-step explanation:
you times 7 by 4 and get 28 then you times 3 by 28 and get 84 km