Assume that male and female births are equally likely and that the birth of any child does not affect the probability of the gen
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2x+5y=20
X=10-2.5y
-2(10-2.5y)+20y=-90
-20+5y+20y=-90
25y=-70
Y=2.8
2(2.8)+5y=20
5.6+5y=20
5y=14.4
Y=2.88
CHECK:
2(2.8)+5(2.88)=20
X=10-2.5y
-2(10-2.5y)+20y=-90
-20+5y+20y=-90
25y=-70
Y=2.8
2(2.8)+5y=20
5.6+5y=20
5y=14.4
Y=2.88
CHECK:
2(2.8)+5(2.88)=20
Answer:
The area under the function .
Step-by-step explanation:
We want to find the Riemann Sum for with 4 sub-intervals, using right endpoints.
A Riemann Sum is a method for approximating the total area underneath a curve on a graph, otherwise known as an integral.
The Right Riemann Sum is given by:
where
From the information given we know that a = 1, b = 3, n = 4.
Therefore,
We need to divide the interval [1, 3] into 4 sub-intervals of length :
Now, we just evaluate the function at the right endpoints:
Next, we use the Right Riemann Sum formula