Answer:
0.3125, 3/8, 9/16, 0.75
Step-by-step explanation:
the order that i put is correct because i divided the fractions to make a decimal then ordered them from least to greatest
The average per page will be given by:
(number of pages)/(time)
number of pages=6 pages
time=2.5 hours
thus
average=(6/2.5)=2.4 pages per hour
The answer is: 2.4 pages per hour
Answer:
9 sqrt(2) /2 = PQ
Step-by-step explanation:
Since this is a right triangle, we can use trig functions
sin theta = opp/ hypotenuse
sin 45 = PQ = 9
9 sin 45 = PQ
9 sqrt(2) /2 = PQ
The variance is the total of the squared distances of the given data from the mean.
This can be calculated through the equation,
σ² = summation of X² / N - μ²
where σ² is the variance X's are the data, N is the number of terms, and μ is the mean.
summation of X² = 100² + 100² + 120² + 120² + 180² = 81200
N = 5
μ = (100 + 100 + 120 + 120 + 180) / 5
μ = 124
Substituting these values to the equation for variance,
σ² = (81200/5) - 124² = 864
Thus, the variance is equal to 864.
