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timofeeve [1]
3 years ago
6

A (1, 1)

Mathematics
2 answers:
Savatey [412]3 years ago
8 0

Answer:

  D(4, 1)

Step-by-step explanation:

The two diagonals have the same midpoint, so ...

  (A+C)/2 = (B+D)/2

  A+C = B+D . . . . multiply by 2

  A+C-B = D . . . . . subtract B

  D = (1, 1) + (5, 3) - (2, 3) = (1+5-2, 1+3-3)

 D = (4, 1)

Andrews [41]3 years ago
4 0

Answer:

D(4 ; 1)

Step-by-step explanation:

vector(AB)=(2-1 ; 3-1) = (1 ; 2)

vector(DC)=(5-x ; 3-y)  and D(x ; y )

ABCD  parallelogram :vector(AB)=vector(DC)

you have the system : 5-x =1

                                       3-y =2

so : x=4 and y=1

D(4 ; 1)

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\frac{1}{3}

Step-by-step explanation:

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1 year ago
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VikaD [51]
To find the missing dimension (the height) you can use the formula A=bh and substitute and let you know. 1/10=3/8h. To find the missing factor (h) you will divide both sides by 3/8. 1/10 divided by 3/8 is the same as 1/10 x 8/3. The answer is 4/15 mile. You show this has h=4/15 mi.
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3 years ago
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dimulka [17.4K]

Answer:

1/4

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3 years ago
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Gemiola [76]

Answer:

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3 0
2 years ago
Please help!<br><br>A: 128°<br>B: 92°<br>C: 36°<br>D: 52°​
insens350 [35]

sum of triangle angles = 180

so

? = 180 - 36 - 92 = 52°   => D

7 0
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