Answer:
b) -2/3
Step-by-step explanation:
2X + 3Y = - 12
3Y = -2X - 12
Y = - 2/3X - 6
SLOPE = - 2/3
Answer:
n=9
Step-by-step explanation:
when you add 49 and 5 you get 54 then you need to divide it by 6
Answer:
(4,-6)
Step-by-step explanation:
1) First, let's find the slope of the line between the two points. Use the slope formula
, substitute the x and y values of (-2,9) and (2,-1) into it, then solve:
![m = \frac{(-1)-(9)}{(2)-(-2)}\\m = \frac{-1-9}{2+2} \\m =\frac{-10}{4} \\m = -\frac{5}{2}](https://tex.z-dn.net/?f=m%20%3D%20%5Cfrac%7B%28-1%29-%289%29%7D%7B%282%29-%28-2%29%7D%5C%5Cm%20%3D%20%5Cfrac%7B-1-9%7D%7B2%2B2%7D%20%5C%5Cm%20%3D%5Cfrac%7B-10%7D%7B4%7D%20%5C%5Cm%20%3D%20-%5Cfrac%7B5%7D%7B2%7D)
So, the slope of the line is
.
2) Now, using that slope, let's find another point on the line. You can do this by drawing the two points on a graph (picture below). Now, remember that the slope is
. So, starting from any of the two points (I chose (2,-1), as seen below) count 5 units down, then 2 units to the right. This gives an answer, (4,-6).
B yes both triangles have an obtuse angle
Answer:
12:13
Step-by-step explanation:
The ratio of x to y is x:y
12 boys : 13 girls = 12:13
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