<u></u><u>The correct answer is 47.5%, or 0.475.</u>
Explanation:
The empirical rule states that in any normal distribution:
68% of data will fall within 1 standard deviation of the mean;
95% of data will fall within 2 standard deviations of the mean; and
99.7% of data will fall within 3 standard deviations of the mean.
The mean is 500 and the standard deviation is 100. This means that 700 is 2 standard deviations away from the mean:
(700-500)/100=200/100=2.
We know that 95% of data will fall within 2 standard deviations from the mean. However, included in the 95% is data less than the mean and greater than the mean. Since we are only concerned with the scores from 500 to 700, we only want the half that is greater than the mean:
95/2 = 47.5%, or 0.475.
The largest two digit prime number is 97
Answer:
The correct answer is Total Cost Payable = $Exp + $15, where $Exp is the total price of the groceries bought by Barbara
Step-by-step explanation:
Barbara orders her groceries. Let us consider that she orders groceries worth $Exp from a store.
Extra charges levied by the store for delivering the groceries to Barbara's house is $15.
Thus the total payable charge by Barbara for her groceries should include the total price of the groceries and the delivery charges levied by the store.
Thus the Total Cost Payable by Barbara is the sum of the total expenditure by her on the groceries and the delivery charge.
∴ The total cost payable = $Exp + $15.
A = length x width
15,000 = (w + 30) x w
15,000 =

+ 30w
0 =

+ 30w - 15,000
Use quadratic formula to find that w= -15 + or - 5

. Because distance cannot be negative, the width is -15 + 5

meters or approximately 108.39 meters. This means that the length is approximately 138.39 meters.
The given sides are 12 cm, 15 cm and 21 cm
Shortest side is 12 cm
As given that in real the shortest side is 200 m
So 12 cm=200 m
then 1 cm = 
Hence 15 cm =
m
21 cm =
m
So,,
15 cm in the photograph is 250 m long
.
21 cm in the photograph is 350 long.