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Naya [18.7K]
3 years ago
10

Which ordered pair is a solution of the system below?

Mathematics
1 answer:
Makovka662 [10]3 years ago
8 0

Answer:

The solution is B) (3, 1).

Step-by-step explanation:

For the system of equations given, there are few different ways to solve.  Since the second equation y = 2x - 5 is already solved for 'y', we can use substitution and place the expression '2x - 5' in for 'y' in the first equation and solve:

2x - 5 + 2 = x

We can also solve for 'y' in the first equation and then set the two equations equal to each other:

y + 2 - 2 = x -2 or y = x -2  so, 2x -5 = x - 2

Either way, when we solve for 'x', we get:

2x - 3 = x or -3 = -x, so x = 3

Plugging in the value of 'x' into the second equation:

y = 2(3) - 5 or y = 6 - 5 or y = 1

The ordered pair (x, y) would be (3, 1).

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Find the measure of ZDCF. C F mDF = 49 G E MEG = 127 Find the measure of angle DCF​
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Answer:

Step-by-step explanation:

Comment

If two secants intersect outside a circle (as these two do) then the angle at which they meet is 1/2 the difference between the intersected arcs. Put much simpler <DCF = 1/2 (arc EG - arc DF)

Givens

Arc EG = 127

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Solution

<DCF = 1/2(127 - 49)

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<DCF = 39

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Hope this helps you! Have an amazing day :)                                                                                  

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