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lys-0071 [83]
3 years ago
5

What is the value of x?

Mathematics
1 answer:
nikklg [1K]3 years ago
4 0
It took me a minute, but I understand what it wants you to do.

a^2+b^2=c^2

Find the missing length on that one triangle to the left.

62^2+b^2= 99.2^2

Square the numbers. 

3844+b^2= 9840.64

Subtract 3844 on both sides. 

b^2= 5996.64 

Square root it. 

b= 77. 437975 round down to b= 77.4 

Now, we can find the length of the other missing side. (x+2)

77.4^2+b^2= 112^2

5990.76+b^2= 12,544

Subtract 5990.76 on both sides. 

b^2= 6553.24

Square root it. 

b= 80.952085, round to b=81

Now, plug that in. 

(x+2)= 81

Subtract 2 on both sides. 

x=79 (about)

I hope this helps! Make sure to check my work. 
~kaikers





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Step-by-step explanation:

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175 ways

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Form a partition into 2 or 3 parts and the number of ways.

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I need to work out x
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Answer:

9,765 cm

Step-by-step explanation:

We'll solve out the measurements for triangle ABC then it will be easy to figure out x

For triangle ABC, we have

Angle B = 90 degrees.

Angle A (CAB) = 38 degrees (the angle CAD is 19 and is said to be half of CAB, since the line AD is a bisector).

Angle C = 180 - 90 - 38 = 52 degrees.

To find the measurement of the BC line, which we label a, we know that

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Now we know the segment BC is 19.53 cm.

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So, CD is half of BC.... so 19.53 / 2 = 9.765 cm

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