Answer: x = 27, y = 23
Explanation:
x = chickens
y = horses
║ x + y = 50
║ 2x + 4y = 146
║ 2x + 2y = 100
║ 2x + 4y = 146
(2x + 4y = 146) - (2x + 2y = 100)
2y = 46
y = 23 <span> <<<<<<<< We found y ¯\_(ツ)_/¯
Sub y = 23 into </span> x + y = 50
x+ 23 = 50
x = 50 - 23
x = 27 <<<<<<<< We found x ¯\_(ツ)_/¯
Y=-4/5x+1 is the equation for bc
-4.3g = 25.8
/-4.3 on both sides
g = -6
Answer:
g = -6
Hello there!
The answer is C.
I will explain to you how I came to this answer.
•First of all, I counted the turning points. There are two, so that means this polynomial function has THREE roots. (# of turning points+1=number of roots.)
•Next, look to see how many times the function crosses the x-axis. This is the number of REAL solutions. In this case, there is one point at which the f(x) is crossing the x-axis so there is one real solution.
•Since there is one real solution there has to be 2 imaginary roots. (Total # of solutions-real solutions=imaginary solutions)
NOTE: the turning points are where the increasing intervals change to decreasing and the decreasing change to increasing. The first derivative at these points is 0.
I hope this helps!
Best wishes~
-HuronGirl
Third option is the right answer:
−2x + 4y ≥ 0