The number $12345678910111213..........979899 consists of all the integers from 1 through 99 written back to back. That's a very
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Answer:
<em>The probability of obtaining a score less than 60 is 2.28% </em>
<em>It happens 2 out of 100 times.</em>
Step-by-step explanation:
If the mean μ = 80 and the standard deviation σ = 10, then we need to find the probability that an X value is less than 60.
Then we find
To find this probability we use the Z statistic.
This is the same as
We look for this value in the table for the normal distribution of right queue and we have:
<em>The probability of obtaining a score less than 60 is 2.28% </em>
<em>It happens 2 out of 100 times.</em>
Length of the rectangle is 51 inches
<u>Solution:</u>
Given that
Length of the rectangle in 34 miles less than 5 times its width
Area of rectangle = 867 square inches
Need to determine length of the rectangle.
Let assume width of the rectangle be represented by variable x.
So 5 times width of the rectangle =5x
34 inches less than 5 times width of the rectangle = 5x – 34
As Length of the rectangle in 34 miles less than 5 times its width
=> Length of the rectangle = 5x – 34
<em><u>The formula for rectangle is given as:</u></em>
As given that Area of rectangle = 867 square inches
On solving quadratic equation by using quadratic formula
In our case a = 5, b = -34 and c = -867
On substituting value of a, b and c in quadratic formula we get
Since x represents width, it cannot be negative, so x = 17
Length of the rectangle = 5x – 34 = 5(17) – 34 = 51
Hence length of the rectangle is 51 inches