Answer:
y = 1/2x - 7/2
Step-by-step explanation:
y = 1/2x + b
-3 = 1/2(1) + b
-3 = 1/2 + b
-7/2 = b
2414 total seats.......221 reserved.....x = non-reserved.....y = remaining seats
y = 2414 - (x + 221)
y = 2414 - x - 221
y = 2193 - x <=====
Answer:
-3
Step-by-step explanation:
5y-5y^2-5+2+2y+3y^2-1
collect like terms
7y-2y^2-4
reorder the terms
-2y^2+7y-4
-2y^2+7y-4 is your final answer, I hope this helps!
Answer:

Step-by-step explanation:
In the triangle,
Hypotenuse = 13
Opposite = Perpendicular = 5
Adjacent = Base = 12
Now,
Cos B = 
Cos B = 12/13
If the triangle is just like in the attached file!