4x + 5y = 22. ... equation 1
2x + 3y = 12. ... equation 2
Multiple equation 2 by 2, and subtracte equation 1 from it, we get.
=> 4x + 6y - (4x + 5y) = 24 - 22
=> y = 2
Now, put the value of y in equation 1, we get
=> 4x + 5(2) = 22
=> 4x = 12
=> x = 3
So, Ans : (3,2). (option A)
Hope this helps!
Answer:
<em>The percentage of nights does it take employees less than 3 hours to clean the largest building </em>
<em> P( x < 3) = 2.28 hours</em>
<em>Step-by-step explanation:</em>
<u><em>Step(i):-</em></u>
<em>Given mean of the Population = 3.8 hours</em>
<em>Given Standard deviation of the Population = 0.4 hours</em>
Let 'X' be the random variable in Normal distribution
Let 'X' = 3 hours


<u><em>Step(ii):-</em></u>
<em>The probability that nights does it take employees less than 3 hours to clean the largest building</em>
P( x < 3) = P(Z < -2)
= 0.5 -A(-2)
= 0.5 - A(2)
= 0.5 - 0.4772
= 0.0228
<em>The probability that nights does it take employees less than 3 hours to clean the largest building</em>
<em>P( x < 3) = 0.0228</em>
<em><u>Conclusion:-</u></em>
<em>The percentage of nights does it take employees less than 3 hours to clean the largest building </em>
<em> P( x < 3) = 2.28 hours </em>
Answer:
24 and 96
Step-by-step explanation:
3*2=6
6*2=12
12*2=24
24*2=48
48*2=96
Answer:
6 square root 2
Step-by-step explanation:
its the only thing i can think of it to be