In Binomial distribution, the expected value or mean is given by,
E(X) = np
where, p = probability of success and n=number of sample size.
E(X) = 100×0.4 = 40
The number of hours required for 3 tractors to plow the field is 2.4 hours
<em><u>Solution:</u></em>
Given that 5 tractors can plow a field in 4 hours
We have to find out number of hours required for 3 tractors to plow the field
5 tractors can plow a field in 4 hours, So time taken for 1 tractor
<em><u>So time taken for 3 tractors is given as:</u></em>
time taken for 3 tractor = time taken for 1 tractor x 3
So number of hours required for 3 tractors to plow the field is 2.4 hours
Answer:
(6, 3)
Step-by-step explanation:
How to Calculate Midpoint?
The x-coordinate of the midpoint M of the segment 
is the arithmetic mean of the x-coordinates of the endpoints of the segment . Similarly, the y-coordinate of the midpoint M of the segment is the arithmetic mean of the y-coordinates of the endpoints of the segment .
Answer:
I believe it is 14226.3
Step-by-step explanation:
You didn't say what shape it is or which ones are length, width, etc. But to find area(in most cases) multiply all the dimensions together.
Hope this helps!
Answer:
No solution
Step-by-step explanation:
A = (b1 + b2)h/2
A = 35 cm²
h = 16 cm
b1 = 25 cm
b2 = ?
35 = (25 + b2)(16)/2
70 = (25 + b2)(16)
70 = 400 + 16b2
16b2 = 330
b2 = 330/16 = -20.625
The answer is a negative number. Since the base of a trapezium cannot have a negative length, there does not exist a trapezium with the given information.
