Answer:
((√x) - 1 )/-2 = y (3rd answer)
Step-by-step explanation:
Swap the x and y in the original equation:
x = (-2y+1)^2
√x = -2y + 1
((√x) - 1 )/-2 = y
I believe the final answer is the third answer.
It is given that getting boy or girl is equally likely. The chance of getting boy or girl on birth is 1/2
P(Boy) = P(Girl) =0.5
If a couple plans to have 8 children then probability of getting at least one girl is
P(Al least one girl out of 8 children) = 1 - P(No girl in 8 children)
= 1 - P( Getting all boys in 8 children)
= 1 - (0.5)^8
= 1 - 0.0039
P(At least one girl out of 8 children) = 0.9961
The probability of getting at least one girl out of 8 children is 0.9961.
The probability 0.9961 is high enough for the couple to be very confident that they will get at least one girl in 8 children
Answer:
45 , 135
Step-by-step explanation:
As we know the property of interior angle if there are two parallel lines i.e The sum of two angle is 180.
Let the First angle be x then other angle 3x
So
x + 3x= 180 [ By the interior property the sum of two angle is 180]
4x=180
Therefore Other angle is 3*45= 135
Answer:
step by step method for solving your equations -2x-3y=-17;7x+5y=21 so that you understand better. [1] -2x - 3•(-7x/5+21/5) = -17 [1] 11x/5 = -22/5 [1] 11x = -22.
Step-by-step explanation:
Answer: 8270
Step-by-step explanation: 1kg=1000 grams