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yanalaym [24]
2 years ago
10

The side lengths of a triangle is 5,10,13, is this a right triangle

Mathematics
1 answer:
STALIN [3.7K]2 years ago
8 0

Answer:

According to the pythogorean theorem, this triangle is not a right triangle.

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How to solve this? Don't just give me the answer help me learn this.
Sphinxa [80]

Answer:

I'm not entirely sure but I think that what is says is that it wants you to find the value of x in (4x+28) to make it 116 degrees because it is that same angle. So what you do is you get (4x+28)=116 and you do this because they are the same angle so you use 116 and get it to solve x. Since I'm lazy, then I go to this website and type the equation in: m a t h w a y . c o m but without all of the spaces, I had to do that so it would let me answer this, but I'll do it the real way this time. (4x+28)=116  Their is a rule in math that as long as you do something to one side of the equal sign in the equation, you have to do it to the other and it will still work. So, you minus 28 from both sides so that you can get rid of it and you now have 4x=88. Now you should know this part but you divide 4 from both sides to make so x is alone. Now you have x=22 because you divided 4 from each side. So their is your answer: x=22.

Step-by-step explanation: If you have the answer key that you can check from to make sure you got it right because I know some teachers let you do that, then you should make sure that is right, but I am pretty sure it is.


6 0
3 years ago
Last year there were 205 ducks living on the pond. This year there are 20% more ducks living on the pond. How many ducks are liv
Rus_ich [418]

Answer:

246

Step-by-step explanation:

3 0
3 years ago
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What is the focus of the parabola? <img src="https://tex.z-dn.net/?f=y%3D%20%5Cfrac%7B1%7D%7B4%7D%20x%5E%7B2%7D%20-x%2B3" id="Te
OlgaM077 [116]
We know that
the equation of the parabola is of the form
y=ax²+bx+c
in this problem
y=1/4x²−x+3
where
a=1/4
b=-1
c=3
 the coordinates of the focus are
(-b/2a,(1-D)/4a)
where D is the discriminant b²-4ac
D=(-1)²-4*(1/4)*3-----> D=1-3---> D=-2
therefore
x coordinate of the focus
-b/2a----> 1/[2*(-1/4)]----> 2

y coordinate of the focus
(1-D)/4a------> (1+2)/(4/4)---> 3

the coordinates of the focus are (2,3)
3 0
3 years ago
Read 2 more answers
Express 0.57 in the form p where p and q are integers o and q # 0
lbvjy [14]

Answer:

57/100

Step-by-step explanation: 0.57 can also be written as 57/100 which is equal to 0.57

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2 years ago
How many names for this ray
docker41 [41]

Answer:

Ray AC and Ray BC

Step-by-step explanation:

5 0
3 years ago
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