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kvv77 [185]
4 years ago
11

A triangle is drawn on a coordinate plane. Point A is at (2,6), Point B is at (4,10), and Point C is at (8,5). What is the midpo

int of side AB
?
Mathematics
1 answer:
juin [17]4 years ago
5 0

Answer:

I(3,8)

Step-by-step explanation:

to answer this question we must use this relation :

  • let I be our midpoint
  • I(\frac{2+4}{2};\frac{6+10}{2})
  • I(3,8)

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7x + 2y =10<br> -7x+y=-16 <br> Using elimination method
tatiyna
First, I would write the problem vertically because it just helps me better.

7x+2y=10
-7x+1y=-16  

Then, I would add downwards.

    7x+2y=10
+ -7x+1y=-16
-------------------
    0x+3y=-6

Now, divide 3 from both sides.

3y=-6
---  ---
3     3

y=-2 

Now, plug in -2 for y in any equation to get x.

7x+2(-2)=10

Combine like terms

7x-4=10

Add 4 to both sides

7x-4=10
   +4  +4
-------------
7x=14

Divide each side by 7.

7x=14
----  ---
7    7

x=2 

So your solution is
(2,-2)

To check the solution, plug in the x and y values in both equations.

7(2)+2(-2)=10
14-4=10
10=10 

-7(2)-2=(-16)
-14-2=-16
-16=-16 

Therefore, the solution works.
<u>You must always plug in the x and y values into both equations to check the solution because sometimes the solution will work for one and not the other.</u>
The solution must work to both equations in other for it to be right.




8 0
4 years ago
Drag each number to the box on the right so it matches the value of the expression on the left. Each number may be used once, mo
ladessa [460]

Answer:

[4*(4+3)]-3 = 25

[(7-5)-: 1/2]*2 = 8

((5.4+3)*(6-2)) = 33.6

(9)/(3)+6)*3 = 27

(4+3.2)*[(9-2)+2.5] = 68.4

Step-by-step explanation:

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3 years ago
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omeli [17]
2/3 of 800

The word 'of' generally means multiply, so then

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800 is like 800/1, the fraction, and when multiplying fractions we multiply the top of the first and the second together, and multiply the bottom of the first and second together (numerator, denominator).

\frac{2}{3} * \frac{800}{1}&#10;=\frac{1600}{3}&#10;=533.333333333333

You don't really need the 800/1, but that might make it more clear exactly what's happening.

Edit: So I'm not sure if it's just me or that LaTeX formatting actually doesn't render. If not,

(2\3)*(800/1) = 1600/3 = 533.333333
5 0
3 years ago
Find the slope of the line that passes through the pair of points.<br> (-8, – 15), (-2, 5)
kolezko [41]
The slope of the line 3.33 or 3 1/3

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3 years ago
Simplify: i137 + i1003
ruslelena [56]
The correct answer would be 0
5 0
4 years ago
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