zairam2002
18.05.2021 •
Mathematics
Can some one lifed me up and help find my love that i dont have
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Ответ:
huh???
Step-by-step explanation:
Ответ:
hey ...I would but I need comfort for my slef
Step-by-step explanation:
my grandpa just died
Ответ:
Part A: Answer in explanation area. Picture 2 is the final solution.
Part B: No. It is not in the shaded region (orange) or either line in quadrant 1. I also provided an algebraic reason in the explanation.
Part C: Answer in explanation. (I chose (3,0) and provided a picture of the chosen point in picture 4).
Step-by-step explanation:
Part A:
I'm going to solve both inequalities for y.
Subtract on both sides:
Reorder right side:
Divide both sides by 3:
So this means I will shade below the line since we have y is less than.
I'm going to graph using the x- and y- intercepts.
To find the x-intercept set y=0 giving you which implies x=8[/tex].
To find the y-intercept set x=0 giving you which implies giving us .
So I graphed the two points (8,0) and (0,2.7) roughly on my coordinate plane.
Remember I'm going to shade below it.
I graphed those 2 points in blue. The line (in dark green) was solid because of the equal part of the inequality.
I symbolized the shading for this inequality in light green.
Subtract on both sides:
Reorder right hand side:
So the y-intercept is 2 and the slope is -1 (-1/1=down 1/right 1).
I'm going to graph (0,2) in red and the point (0+1,2-1)=(1,1) in red.
This line is also solid and I will connect them with a dark purple line.
The shading is above because it said y greater than.
The intersection of the the shaded regions along with the boundary lines in quadrant 1 are a solution to the inequality. So where you see purple and green is the area we are talking about.; the area, between the lines in quadrant 1.
Part B:
(8,2) is in picture 3.
(8,2) is not on either line in Quadrant 1 and it is also not located between them in the shaded region.
Therefore, it is not a solution.
We can also verify this algebraically.
In order for it to be a solution it must satisfy both inequalities.
with :
is not true so (8,2) is not a solution and we don't even have to check the second inequality as it had to be a solution to both.
Part C:
Let's choose (3,0).
x represents the number of dry food.
y represents the number of wet food.
So this means we just but 3 things of dry food and no wet food.
3 things of dry food will feed 2 dogs plus 1 more.
This will also cost us 3+3(0)=3 dollars which is less than 8 dollars.