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Rama09 [41]
3 years ago
7

Find the exact value of x

Mathematics
2 answers:
Galina-37 [17]3 years ago
5 0

Answer:

8.94 (Rounded would be 9)

Step-by-step explanation:

By using the Pythagorean Theorem formula,

A^2+B^2 = C^2

You have the hypotenuse (c)  = 12

and you have a leg (a) = 8

and you're trying to find another leg (b) = x

In order to find this, you'll have to change up the formula in order to find (B) instead of (C)

B^2 = C^2 - A^2

(B) = (12)^2 - (8)^2

(B) = 144 - 64

(B) = 80

Square root of 80

B = 8.9

nikitadnepr [17]3 years ago
4 0
Answer: 8.94 (pretty sure)
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c. 2.85

Step-by-step explanation:

A) 1. subtract -x on both sides              2. to get 3x-1/2=7  

3. Add 1/2 on both sides                    4. to get 3x=7.5    

5. divide 3 on both sides                   6. To get... x=2.5

B)1. Same process.                               2. x+2=13/3        

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C) 1. same process.                           2. 2x-x/3=3+7/4

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7. -x=14.25-6x                                      8. 5x=14.25

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* remember to distribute the 3 to each variable.

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3 years ago
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