Answer:
x=(3,1/4)
Step-by-step explanation:
Be sure to use the formula...
- First, move all variables to one side (left) of the equation. You want one side to be equivalent to zero.
-Next, you need to find a, b, and c. This should be...
a=4
b=-13
c=3
- Knowing this, fill in these variable to go along with the formula. I cannot do this for you, as you should try it on your own. But, you should end up with the solution x= (3,1/4).
- Hope this helps! If you need a further explanation or help on any more problems please let me know, as I would be glad to help anytime.
For line B to AC: y - 6 = (1/3)(x - 4); y - 6 = (x/3) - (4/3); 3y - 18 = x - 4, so 3y - x = 14
For line A to BC: y - 6 = (-1)(x - 0); y - 6 = -x, so y + x = 6
Since these lines intersect at one point (the orthocenter), we can use simultaneous equations to solve for x and/or y:
(3y - x = 14) + (y + x = 6) => 4y = 20, y = +5; Substitute this into y + x = 6: 5 + x = 6, x = +1
<span>So the orthocenter is at coordinates (1,5), and the slopes of all three orthocenter lines are above.</span>
Answer:
The age of the person who entered the room is 15
Step-by-step explanation:
We are given:
Ages of 5 people in a room are:
17, 16, 15, 17, 22
A person enters room, and then the mean age of 6 people is 17.
We need to find the age of person who entered the room.
The formula to calculate mean is: ![Mean=\frac{Sum\:of\:all\:data\:values}{Number\:of\:data\:Values}](https://tex.z-dn.net/?f=Mean%3D%5Cfrac%7BSum%5C%3Aof%5C%3Aall%5C%3Adata%5C%3Avalues%7D%7BNumber%5C%3Aof%5C%3Adata%5C%3AValues%7D)
Now, in question we are given mean of 6 people that is 17
The age of 5 people are given while age of one person who enters the room is unknown.
Let age of person whose age is unknown= x
Now finding x using mean formula
![Mean=\frac{Sum\:of\:all\:data\:values}{Number\:of\:data\:Values}\\17=\frac{17+16+ 15+ 17+ 22+x}{6}\\17=\frac{87+x}{6}\\17*6=87+x\\102=87+x\\x=102-87\\x=15](https://tex.z-dn.net/?f=Mean%3D%5Cfrac%7BSum%5C%3Aof%5C%3Aall%5C%3Adata%5C%3Avalues%7D%7BNumber%5C%3Aof%5C%3Adata%5C%3AValues%7D%5C%5C17%3D%5Cfrac%7B17%2B16%2B%2015%2B%2017%2B%2022%2Bx%7D%7B6%7D%5C%5C17%3D%5Cfrac%7B87%2Bx%7D%7B6%7D%5C%5C17%2A6%3D87%2Bx%5C%5C102%3D87%2Bx%5C%5Cx%3D102-87%5C%5Cx%3D15)
So, The value of x: x=15
Hence, the age of the person who entered the room is 15