Answer:
0.972 = 97.2% probability that a 10-cubic-foot block of the wood has at most 4 knots.
Step-by-step explanation:
In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:
In which
x is the number of sucesses
e = 2.71828 is the Euler number
is the mean in the given time interval.
Average of 1.7 knots in 10 cubic feet of the wood.
This means that .
Find the probability that a 10-cubic-foot block of the wood has at most 4 knots.
In which
0.972 = 97.2% probability that a 10-cubic-foot block of the wood has at most 4 knots.
Let x be how many erasers Sari has and y be for Sam's.
x = 3y
x + y = 28
y = 28 - x
x = 3(28 - x)
x = 84 - 3x
4x = 84
x = 21
Answer: Sari has 21 erasers
Answer:
h(t) = –5t + 500
Step-by-step explanation:
Answer:
The slope of the a straight line is given by the ratio of the Rise to the Run
of the line. The rise between the given points is zero.
The slope of the line that passes through the points (4, 10) and (1, 10) is zero.
Step-by-step explanation:
The given points are; (4, 10) and (1, 10)
The slope of a line, m, is given by the following formula;
Where;
(x₁, y₁) = (4, 10) and (x₂. y₂) = (1, 10), we get;
The slope of the line that passes through the points (4, 10) and (1, 10) is 0.
The answer is 24. it works like this. you subtract 2 from 12 and get 10. then add 5 to 10 to get 15. then subtract 2 from 15 and get 13. 13+5 is 18. and so on