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wlad13 [49]
2 years ago
13

Midpoint of the line with endpoints of (-1,2) and (7,3)

Mathematics
1 answer:
cricket20 [7]2 years ago
7 0
To find the mid point you must

x = (x1 + x2) / 2
y = (y1 + y2) / 2

(3,2.5)
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Select the equation that contains the point (3, -9), and in which the graph of the line has a positive slope.
Kamila [148]
First thing to do is to solve each of these for y.  The first one is y=-4x-3; the second one is y=4x-21; the third one is y=4x+21; the fourth one is y=-4x+3.  From that you can tell the positive slopes are found in the second and third equations.  Those are the ones we will test now for the point (3, -9).  y=-9 and x=3, so let's fill in accordingly.  The second equation filled in is -9=4(3)-21.  Does the left side equal the right when we do the math?  -9=12-21 and -9=-9.  So the second one works.  Just for the sake of completion, let's do the same with the third: -9=4(3)+21.  Does -9=12+21?  Of course it doesn't.  Our equation is the second one above, y+9=4(x-3).
7 0
3 years ago
I need answer fast..
Novosadov [1.4K]

Answer:

a. Portrays the case of two triangles being equal if two angles and the line between them are equal

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c. The case of two triangles being equal when all lines are equal, compared 2 by 2

5 0
3 years ago
Multiply 15×2.23**
kkurt [141]

Answer:

33.45

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2 years ago
A student who is 5 ft 6 in. tall measured shadows
irakobra [83]

Answer:

lunar model

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3 years ago
sophia got 8 presents for her birthday . There were 3 shirts in each present. she wants to organize her new shirts and will put
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Answer:

6 drawers

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