Answer:
Quadrant 2
Step-by-step explanation:
The answer is quadrant two because the answer is in the form of -x,y. When the x is negative and the y is positive, it is always going to be in quadrant 2. As you can see in the image below, quadrant 1 is going to be all positive, quadrant two is going to be negative then positive, quadrant three is going to be all negative, and quadrant 4 is going to be positive then negative. Use this as a guide for the rest of your question. I hope this helps!
Answer:
x = 1.8
Step-by-step explanation:
We have the equation -3x + 18 = 7x. First we do your step 1, and get: 18 = 10x. When doing your step 2, we divide both sides by 10 to isolate x alone. 18/10 = 1.8. X = 1.8
<u>Given</u>:
Given that ABCD is a rectangle.
The diagonals of the rectangle are AC and DB.
The length of AE is (6x -55)
The length of EC is (3x - 16)
We need to determine the length of the diagonal DB.
<u>Value of x:</u>
The value of x can be determined by equating AE and EC
Thus, we have;
![AE=EC](https://tex.z-dn.net/?f=AE%3DEC)
Substituting the values, we get;
![6x-55=3x-16](https://tex.z-dn.net/?f=6x-55%3D3x-16)
![3x-55=-16](https://tex.z-dn.net/?f=3x-55%3D-16)
![3x=39](https://tex.z-dn.net/?f=3x%3D39)
![x=13](https://tex.z-dn.net/?f=x%3D13)
Thus, the value of x is 13.
<u>Length of AC:</u>
Length of AE = ![6(13)-55=78-55=23](https://tex.z-dn.net/?f=6%2813%29-55%3D78-55%3D23)
Length of EC = ![3(13)-16=39-16=23](https://tex.z-dn.net/?f=3%2813%29-16%3D39-16%3D23)
Thus, the length of AC can be determined by adding the lengths of AE and EC.
Thus, we have;
![AC=AE+EC](https://tex.z-dn.net/?f=AC%3DAE%2BEC)
![AC=23+23](https://tex.z-dn.net/?f=AC%3D23%2B23)
![AC=46](https://tex.z-dn.net/?f=AC%3D46)
Thus, the length of AC is 46.
<u>Length of DB:</u>
Since, the diagonals AC and DB are perpendicular to each other, then their lengths are congruent.
Hence, we have;
![AC=DB](https://tex.z-dn.net/?f=AC%3DDB)
![46=DB](https://tex.z-dn.net/?f=46%3DDB)
Thus, the length of DB is 46.
The slope would be 4.33. He sells 13 cars in 3 months, 13/3=4.33 cars each month. While you can't sell 4.33, remember that this is just the slope. The equation would be apprx y=4.33(x)