Answer:E'F' and EF are equal in length.
x intercept is where the line crosses the x axis or where y=0
y intercept is where the line crosses the y axis or where x=0
x intercept
set y=0
4x-3y=12
4x-3(0)=12
4x=12
divide by 4
x=3
the x intercept is 3
y intercept
set x=0
4x-3y=12
4(0)-3y=12
-3y=12
divide by -3
y=-4
the y intercept is -4
Answer:
BC ≈ 19.4 cm
Step-by-step explanation:
using the cosine ratio in the right triangle
cos71° = 
= 
= 
( multiply both sides by BC )
BC × cos71° = 6.3 ( divide both sides by cos71° )
BC = 
≈ 19.4 cm ( to 3 sig. figs )
