Answer:
sorry, dont speak spanish
Step-by-step explanation:
Answer:
Domain: The domain is the set of all possible x-values which will make the function "work", and will output real y-values.
Range: The area of variation between upper and lower limits on a particular scale.
Step-by-step explanation:
Width = 70yd
Length = 105yg
2(65+110) = 2(70+105)
But 65*110 = 7150
And 70*105 = 7350
So 70*105 > 65*110
Answer:
The solution set is (-20/9, -95/9)
Step-by-step explanation:
To solve using the substitution method, start by solving the second equation for y.
1/3y = 7/3x + 5/3
y = 7x + 5
Now that we have this, we can plug it in for y in the first equation. Then we can solve for x.
-4x - 2(7x + 5) = 30
-4x - 14x - 10 = 30
-18x - 10 = 30
-18x = 40
x = -20/9
Now that we have the value of x, we can solve for y by inputting the x value into either equation.
-4x - 2y = 30
-4(-20/9) - 2y = 30
80/9 - 2y = 30
80/9 - 2y = 270/9
-2y = 190/9
y = -95/9