Answer:
Step-by-step explanation:
Sin80° = opp/hyp
Sin80° = 21/y
ysin80° = 21
y = 21/sin80°
y = 21.3
4y - 1 = 7 / + 1 ;
4y = 8 /÷4 ;
y = 2 ;
Answer:
Step-by-step explanation:
Use the slope formula:

where m = slope
Given the coordinates
(-4, 4) ---> this means x1 = -4 , y1 = 4
(2, -5) ---> this means x2 = 2 , y2 = -5
Substitute these values into the slope formula:


Answer:the first one is ten And the last one is the first one on top
Step-by-step explanation:
Use the point-slope formula, y-y1=m(x-x1) to find the equation of the line
The answer is y=3x-1. Hope this helps!