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Mathematics

2 answers:

soldi70 [24.7K]3 years ago

8 0

AFB is acute. DFB is obtuse. Finally CFD is right. And those are the"right answers" and your welcome hope you get a 100%

Agata [3.3K]3 years ago

3 0

AFB = 48 degrees

DFB = 138 degrees

CFD = 90 degrees

In order to find AFB, we can see that AFC is equal to 90. We then subtract the 42 degree angle on the inside of it.

90 - 42 = 48

For the DFB angle, we know that we have a 90 degree angle plus the 42 degree angle. So we add them together.

90 + 42 = 132

Lastly CFD is a right angle and therefore is equal to 90.

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Radda [10]

Answer:

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Step-by-step explanation:

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4 years ago

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Hunter-Best [27]

Step-by-step explanation:

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Elimination method

Substitution method

Graphical method

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An example of intersecting system of linear equations;

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The two lines will intersect at a particular single point since the slopes are not identical. The attachment below demonstrates this aspect.

ii) A parallel system of linear equations

Two lines are said to be parallel if they have an identical slope but unique y-intercepts. Parallel lines never intersect at any given point since the perpendicular distance between them is always constant.

Thus a parallel system of linear equations has no solution. An example of parallel system of linear equations;

y = 3x - 4 and y = 3x + 8

The attachment below demonstrates this aspect.

iii) A coincident system of linear equations

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Therefore, this system of linear equations will have an infinite number of solutions.