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Harrizon [31]
2 years ago
13

Let x represent BC. Using either ABC or CAB and trigonometric functions, solve for x to three decimal places in at least three d

ifferent ways.
Show your work for each way you find x.
Mathematics
1 answer:
mezya [45]2 years ago
5 0

Answer:

Step-by-step explanation:

plato answer

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I need help with #8. I need to use the quadratic formula. I have a calculator that is programmed for the quadratic formula so al
GuDViN [60]

Answer:

  x = 14

Step-by-step explanation:

Extend line AB so that it intersects ray CE at point G. Then angles BGC and BAD are "alternate interior angles", hence congruent.

The angle at B is exterior to triangle BCG, and is equal to the sum of the interior angles at C and G:

  138 = (376 -23x) +(x^2 -8x)

Subtracting 138 and collecting terms we have ...

  x^2 -31x +238 = 0

For your calculator, a=1, b=-31, c=238.

__

<em>Additional comment</em>

You will find that the solutions to this are x = {14, 17}. You will also find that angle BCE will have corresponding values of 54° and -15°. That is, the solution x=17 is "extraneous." It is a solution to the equation, but not to the problem.

For x=14, the marked angles are A = 84°, C = 54°.

8 0
3 years ago
Hey im back with this map i need help
Katena32 [7]

Answer:

m<5= 46 degrees

m<8= 134 degrees

Step-by-step explanation:

m<5: all you need to do is subtract 134 from 180

m<8: m<2 and m<8 have the same angle

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2 years ago
What is the next sequence 3.1 3.1 1 33.11 33.111
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Answer:

32

Step-by-step explanation:

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