The first given equation is:
x - 7y = -20
We can rewrite this equation as follows:
x = 7y - 20 ...........> equation I
The second given equation is:
-3x + 9y = 36 ..........> equation II
Substitute with equation I in equation II to get the value of the y as follows:
-3x + 9y = 36
-3(7y-20) + 9y = 36
-21y + 60 + 9y = 36
-12y = 36-60 = -24
y = (-24) / (-12) = 2
Now use the value of the y and substitute in equation I to get the value of the x as follows:
x = 7y - 20
x = 7(2) - 20 = 14 - 20 = -6
Based on the above calculations:
x = -6
y = 2
Answer:
Step-by-step explanation:
First verify that they are similar by comparing the ratio of known sides
7/5 = 1.4
(7/2)/ (5/2) = 1.4
As these two are identical, we have similar triangles and the third sides will have the same ratio
6/h = 7/5
h = 6(5/7) = 30/7 = 4 2/7
Answer:
lol
Step-by-step explanation:knjnhbgvfcdxefcvgbhnjhbgvtcrftgbhnj
Answer: 1. Function
2. NOT Function
Step-by-step explanation:
Each x value has one y value
Two x values
