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Dmitrij [34]
3 years ago
6

Hurry quick i have more questions answer then all for a total of about 100 points

Mathematics
1 answer:
kogti [31]3 years ago
5 0

Answer:

1/5

Step-by-step explanation:

.7555555(repeating )

writing as a fraction

x = .755555555

10 x = 7.555555

Subtract the two

10x = 7.555555

-x =     .75555555

--------------------------

9x  =6.8

Divide each side by 9

x = 6.8/9

x = 68/90

Divide by 2

x = 34/45

We do the same  for .555555 repeating

y = .5555 repeating

10 y = 5.5 repeating

10y  = 5.5

-y =       .555

-------------------

9y = 5

y = 5/9

Subtract x - y

34/45 - 5/9

Get a common denominator

34/45 - 25/45

9/45

1/5

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Alexandra [31]

Answer:

1. B) 5.7

2. A) 12

3. A) 11.4

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5. A) 16.2

6. A) 11.2

7. No, they do not form a right triangle

8. Yes, they do form a right triangle

Step-by-step explanation:

Extra tip: The hypotenuse has to be less than both sides added together, but cannot be more than either of the sides alone.

1.

16² + b² = 17²

256 + b² = 289

256 - 256 + b² = 289 - 256

b² = 33

√b² = √33

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2.

16² + b² = 20²

256 + b² = 400

256 - 256 + b² = 400 - 256

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√b² = √144

b = 12

3.

7² + 9² = c²

49 + 81 = c²

130 = c²

√130 = √c²

11.40 or 11.4 = c

4.

7² + b² = 9²

49 + b² = 81

49 - 49 + b² = 81 - 49

b² = 32

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5.

a² + 5² = 17²

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a² + 25 - 25 = 289 - 25

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√a² = √264

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6.

10² + b² = 15²

100 + b² = 225

100 - 100 + b² = 225 - 100

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√b² = √125

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7.

15² + 8² = 16²

225 + 64 = 256

289 ≠ 256

8.

5² + 12² = 13²

25 + 144 = 169

169 = 169

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3 years ago
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azamat

Answer:

9

Step-by-step explanation:

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2 years ago
12. What is the value of x ?
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If that dot in the middle is the middle of the circle, then that should mean the center is 5 away from both of those lines. Therefore, I believe x would 9/2 or 4.5

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