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Schach [20]
2 years ago
11

Work out the value of angle x ​

Mathematics
1 answer:
kobusy [5.1K]2 years ago
5 0

Answer:

its an equallateral so its 60 degrees

Step-by-step explanation:

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2 over 3 n =-12 what value of n makes the equation true?
galina1969 [7]

Answer:

-1/18

Step-by-step explanation:

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2 years ago
If you borrow $50 from your mom and $50 from your dad it makes $100. So the shirt you buy is $97. Then you have $3 left. So you
Ierofanga [76]
In your pocket that is where the 1$ is
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3 years ago
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Giving brainlist to whoever answers
SpyIntel [72]

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144m2

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I think very carefully on my brain is it cirrect?

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3 years ago
The blood platelet counts of a group of women have a​ bell-shaped distribution with a mean of 256.3 and a standard deviation of
AnnyKZ [126]

Answer:

a) In the interval  (  55,9  ;   456,7 ) we will find 99,7 % of all values

b) In the interval  (  122,7  ;  389,9 ) we find 95,4 % of all values

Step-by-step explanation:

For a Normal distribution N (μ ; σ ) the Empirical rule establishes that the intervals:

( μ  ±  σ  )          contains 68,3 % of all values

( μ  ±  2σ  )        contains 95,4 % of all values

( μ  ±  3σ  )        contains 99,7 % of all values

If   N ( 256,3 ; 66,8 )

σ  =  66,8        ⇒   3*σ  = 3 * 66,8  = 200,4

Then:     256,3 - 200,4  =  55,9

And        256,3 + 200,4 = 456,7

a) In the interval  (  55,9  ;   456,7 ) we will find 99,7 % of all values

b) 2*σ  = 2 * 66,8  = 133,6

Then  256,3 - 133,6  = 122,7

And    256,3 + 133,6 = 389,90

Then in the interval  (  122,7  ;  389,9 ) we find 95,4 % of all values

4 0
2 years ago
ABCD is a parallelogram angle a is equal to (5x-2) and angle c is equal to 48 find x
bulgar [2K]
For a parallelogram, we know that there are to pairs of angles that are the same and that all 4 angles add to 360.

2(5x-2)+2(48)=360
2(5x-2)+96=360
10x-4+96=360
10x+92=360
10x=268
x=26.8

Final answer: x=26.8

Hope this helps!
3 0
2 years ago
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