x^2-xy+3y^2=15 x-y=2
Make the equation X:
x = y + 2
Plug in and Solve:
(y+2)^2 - y(y+2) + 3(y+2)^2 = 15
y = (√46) - 7/3
y = - 7 + (√46)/3
Answer:
Step-by-step explanation:
Let the number at B be x.
We know that distance between two points on the number line is the absolute value of the difference of numbers at those points.
Then distances representing the lengths of segments AB and BC are:
We are given the ratio of segments:
Substitute and solve for x:
- (x - 9)/(13 - x) = 2/3
- 3(x - 9) = 2(13 - x)
- 3x - 27 = 26 - 2x
- 3x + 2x = 26 + 27
- 5x = 53
- x = 53/5
- x = 10.6
Answer:
The experimental probability of rolling a 2 is
.
Step-by-step explanation:
Since you didn't give any statements, I'll make one myself.
P of rolling a 2 (experimental): 
The experimental probability of rolling a 2 is
.
Reasons for what, I cant see anything?