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tester [92]
2 years ago
13

Please help I will mark brainlist

Mathematics
2 answers:
IRINA_888 [86]2 years ago
3 0

Answer:

False hope this helps

Step-by-step explanation:

Alexxandr [17]2 years ago
3 0

Answer:

I believe that it is false

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<span><span><span>1. An altitude of a triangle is a line segment from a vertex perpendicular to the opposite side. Find the equations of the altitudes of the triangle with vertices (4, 5),(-4, 1) and (2, -5). Do this by solving a system of two of two of the altitude equations and showing that the intersection point also belongs to the third line. </span>
(Scroll Down for Answer!)</span><span>Answer by </span>jim_thompson5910(34047)   (Show Source):You can put this solution on YOUR website!
<span>If we plot the points and connect them, we get this triangle: 

 

Let point 
A=(xA,yA)
B=(xB,yB)
C=(xC,yC) 



------------------------------- 
Let's find the equation of the segment AB 


Start with the general formula 

 


Plug in the given points 

 


Simplify and combine like terms 

 


So the equation of the line through AB is  


------------------------------- 
Let's find the equation of the segment BC 


Start with the general formula 

 


Plug in the given points 

 


Simplify and combine like terms 

 


So the equation of the line through BC is  




------------------------------- 
Let's find the equation of the segment CA 


Start with the general formula 

 


Plug in the given points 

 


Simplify and combine like terms 

 


So the equation of the line through CA is  




So we have these equations of the lines that make up the triangle 


 



So to find the equation of the line that is perpendicular to  that goes through the point C(2,-5), simply negate and invert the slope  to get 

Now plug the slope and the point (2,-5) into  


 

 Solve for y and simplify 

So the altitude for vertex C is  



Now to find the equation of the line that is perpendicular to  that goes through the point A(4,5), simply negate and invert the slope to get  

Now plug the slope and the point (2,-5) into  


 

 Solve for y and simplify 

So the altitude for vertex A is  




Now to find the equation of the line that is perpendicular to  that goes through the point B(-4,1), simply negate and invert the slope to get  

Now plug the slope and the point (-4,1) into  


 

 Solve for y and simplify 

So the altitude for vertex B is  



------------------------------------------------------------ 
Now let's solve the system 


 

 Plug in  into the first equation 

 Add 2x to both sides and subtract 2 from both sides 

 Divide both sides by 3 to isolate x 


Now plug this into  

 

 



So the orthocenter is (-2/3,1/3) 

So if we plug in  into the third equation , we get 


 


 


 

 

So the orthocenter lies on the third altitude 





</span><span>
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3 0
3 years ago
My mystery number has 5 tens and 29 ones?
Anika [276]
79 is your number.....
6 0
3 years ago
Read 2 more answers
Need help ASAP! Brainliest will be marked for right answer!
choli [55]

Answer:

33^2

Step-by-step explanation:

3 x 5= 15

15+18=33

33^2 because there is two triangles your adding to get the answer

8 0
3 years ago
If I had 34 Hershey bars and I ate 2, but I get 69 more and you divide that by 420 what do you get?
Mariulka [41]

Answer:

0.24

Step-by-step explanation:

also i see what you did there

5 0
3 years ago
What is 18.248287 rounded to the nearest tenth? <br>​
ycow [4]

Answer:

18.248287

8.2

Step-by-step explanation:

7 0
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