The probability is 0.2005.
We compute the z-score for this time:
z = (X-μ)/σ = (230-184)/55 = 0.84
Looking this up in a z-table (http://www.z-table.com) we see that the area to the left of this (less than this) is 0.7995. We want the area greater than this, so we subtract this from 1:
1 - 0.7995 = 0.2005.
Answer:
.57%
Step-by-step explanation:
if you add $0.91 to $51.09 to get 52, then you divide $52 by $0.91 the divide it by 100.
Answer:
3
Step-by-step explanation:
The average rate of dive is (54.6 / 4) meters per minute.
That improper fraction can be simplified to 13.65 meters per minute.
The average dive rate is not an integer. The nearest integer is 14 m/min.
The area ratio is 1:16 meaning that the old area is 1 while the new area is 16. So this is another way of saying "the area is multiplied by 16"
Take the square root of each part of the ratio of 1:16 and we get 1:4
So this is the scale factor. It tells us how the linear components of the circles relate to one another. If the circumference of the smaller circle is 1,then the larger circle has a circumference of 4.
Therefore, the circumference has been multiplied by 4