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Monica [59]
2 years ago
7

xian and his cousin Kai Both collect stamps, xian has 56 stamps, and Kai have 80 stamps. The boys recently joined different stam

p-collecting clubs. Xian's club will send him 12 new stamps per month. Kai's club will send him eight new stamps per month. After how many months will Xian and Kai Have the same number of stamps? How many stamps will each Have?
Mathematics
1 answer:
vladimir1956 [14]2 years ago
8 0
In 6 month they will have the same number of stamps. sorry... idk the other part

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In a reliability test there is a 42% probability that a computer chip survives more than 500 temperature cycles. If a computer c
Strike441 [17]

Answer:

The probability is P(B' n A ' ) =  16%

Step-by-step explanation:

From the  question we are told that  

     A  is the event that  the chip was "made by company A"

      B is  the event that a chip "survives 500 temperature cycles"

    The probability that a computer chip survives more than 500 temperature cycles is

     P(B) = 42% = 0.42

 The  probability that does not survive more than 500 temperature cycles and  it was manufactured by company A is  P(A | B' ) =  0.73

The probability that the  computer chip is not manufactured by company A and does not survive more than 500 temperature cycles is mathematically evaluated as

      P(B' n A ' ) =  P (B' | A' ) P(B ')

Where B' \ and \   A' are a A and B complements and  | represented AND operator  

  So  

        P(B' n A ' ) = [1 -  P (B' | A )] [1 - P(B )]

substituting values

         P(B' n A ' ) = [1 -  0.73] [1 - 0.42 ]

        P(B' n A ' ) = (0.27 )(0.58)

        P(B' n A ' ) =0.16

        P(B' n A ' ) =  16%

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3 years ago
Correct answer gets brainliest and full ratings :)
Tanzania [10]
The answer is C. (-3,3)
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3 years ago
Cos(x)= 40/41 and x lies in Q4. Find sin(x)
notka56 [123]

Step-by-step explanation:

\sin(x)  =  \sqrt{1 -  {cos}^{2}x }

\sin(x ) =   \sqrt{1 -  { (\frac{40}{41} )}^{2} }

\sin(x)  =  \sqrt{ \frac{1681 - 1600}{1681} }  =  \sqrt{ \frac{81}{1681} }

sin(x)=±9/41

As x lies in Quadrant 4 , sin(x) = -9/41

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3 years ago
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Can someone answer this question please answer it correctly if it’s corect I will mark you brainliest
mariarad [96]

Answer:

50%

Step-by-step explanation:

First, find the difference between the two values

1.8-1.2=0.6

Then divide the original value by the difference

difference/original value

0.6/1.2=0.5

0.5*100=50

So, the amount of iron increased by 50%

Hope this helped! :)

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a group of six neighbors hosted a garage sale in which they pooled their items together and equally split the profits. each neig
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Answer:

341.28

Step-by-step explanation:

56.88 x 6 neighbors = 342.28

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