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Katyanochek1 [597]
4 years ago
7

Find the measure of the third angle of a triangle given the measure of two angles are 86º and xº.

Mathematics
2 answers:
ioda4 years ago
6 0
The correct answer would be A, 86-x

the sum of a triangle will always be 180 the grease.
astra-53 [7]4 years ago
4 0
The total degrees in a triangle is 180. if you add the angles up, it should equal. if we say that the angle of the third angle is y, our equation looks like this
y+x+86=180
if we solve for y, we get
y=180-86-x, which you can solve for for your answer
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4,000-135,000=131,000 amount of interest paid
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1/2 and 1/2  so both are equal 

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7 0
3 years ago
HELPPP DUE TODAY AT 11AM QUESTION 45 AND 46
Katarina [22]
Answer:
45) Option A
- This is because every option has different modes and 70 is the mode and only one option has the mode as 70.
Hence, option A is correct.

46) Option B
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Hence, option B is correct.
8 0
2 years ago
I do not understand this at all, and they get worse. Equations are hard for me, Fractions are hard for me and don't start me wit
trapecia [35]
These problems take a little longer as you have to solve for more than one variable but her is the idea:
I want to get only one variable so I am going to find what other variables are in terms of that variable(z is in all three so it would be easiest to do this problem by finding the others in terms of it)
if 2x-6z=1 add 6z to both sides to give you 2x=1+6z
divide by 2 to get x=1/2+3z

we do the same with 3y+8z=4
subtract 8z from both sides to get 3y=4-8z
then divide by 3 to get y=4/3-8/3z 

Now I will plug them both into my middle equasion (x+3y+2z=3)
to get (1/2+3z)+3(4/3-8/3z)+2z=3 
the threes cancel out and because all we have is addition and subtraction you can now get rid of the parenthesis 1/2+3z+4-8z+2z=3 
combine like terms to get 9/2-3z=3 (i wrote the 4 1/2 as 9/2)
subtract 9/2 to get -3z=-3/2
multiply by a negative to get 3z=3/2
Divide by 3 and you get z=1/2

Now you have to find the other two variables to do this I would just plug z into the other equations a solve

2x-6z=1
2x-6(1/2)=1 plug in z to get 2x-3=1
add the three to both sides to get 2x=4
divide by two to get x=2

Finally the last equation:
3y+8z=4
plug in z to get 3y+8(1/2)=4 or 3y+4=4
subtract the 4 from both sides to get 3y=0
divide by 3 and you get y=0

So overall we have z=1/2, x=2, and y=0

To check that we did nothing wrong I would recommend plugging it back into our equation (use one that includes all three variables)
x+3y+2z=3
(2)+3(0)+2(1/2)=3
simplify 2+0+1=3  So your values should be correct.

Hope this was helpful! :)
6 0
3 years ago
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