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VLD [36.1K]
3 years ago
11

The following proof has an error. Find the error and choose the correct replacement.

Mathematics
1 answer:
Dvinal [7]3 years ago
8 0

Answer:

opposite sides of a parallel are congruent.

Step-by-step explanation:

the symbol between AB and DC stands for "equal to", not parallel. boom roasted. (don't hate me if I'm wrong)

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Raghav, Rajit, Junsu, Mia, and Umema were finished with lunch and began playing with drink straws. Each one was making a line de
vodomira [7]

Answer:

x = 25.8^{o} and y = 51.4^{o}

Step-by-step explanation:

Known that he sum of angles on a straight line is 180^{o}. From the diagram;

2y + x + y = 180^{o}

x + 3y = 180^{o} ................ 1

Also,

2x + x + 2y = 180^{o}

3x + 2y = 180^{o} .............. 2

Using the elimination method, multiply equation 1 by 3 and equation 2 by 1

3x + 9y = 540 ............ 3

3x + 2y = 180^{o} ............. 4

7y = 360

y = \frac{360}{7}

y = 51.4^{o}

substitute the value of y in equation 1,

x + 3y = 180^{o}

x + 3(51.4) = 180^{o}

x + 154.2 = 180^{o}

x = 180^{o} - 154.2

x = 25.8^{o}

Thus, x = 25.8^{o} and y = 51.4^{o}

6 0
3 years ago
How many pairs of parallel line segments are shown? <br><br> 1. 8<br> 2. 24<br> 3. 4<br> 4. 18
Burka [1]
For this case what you should see is each of the edges of the prism that are parallel.
 We then have as parallel edges:
 AC and GE
 CG and AE
 CD and GH
 AB and EF
 BD and HF
 DH and BF
 CD and EF
 GH and AB
 Answer: 
 8 pairs of parallel lines
8 0
4 years ago
Read 2 more answers
4y+4=7z, 36-4y=3x <br> thank you so much!!
iogann1982 [59]
Is it supposed to say 7x rather than Z? If so then


If you make both equations = to 4y you can work out the answer so

4y =7x-4
4y = 36-3x

Then you put them equal to each other so

7x-4 = 36-3x
10x = 40
x = 4

You can then find y by doing
4y = 7x4 - 4
4y = 28-4
4y = 24
y= 6

So the answer is x = 4 and y = 6

8 0
3 years ago
Which of the following correctly displays s +u?
DerKrebs [107]

Answer:

Answer: D

Step-by-step explanation: I just took the quiz

5 0
4 years ago
What is the cardinality of the set S = {o,r,a,n,g,e}
rodikova [14]

Answer:

The cardinality is 6.

Step-by-step explanation:

The cardinality of a set is a measure of the number of elements in the set. The set S has 6 elements, characters as listed, therefore we say the cardinality of the set S is 6, or |S|=6.

3 0
3 years ago
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