The six scores have to average out to the mean, so their sum has to be six times the mean. Since the sum of the first five is 5 more than 5 times the mean, the remaining score must be 5 less than the mean.

Answer: 5 points below the mean

4 0

3 years ago

A kite is flying 70 feet above the ground and is attached to a string tied to a stake on the ground. The angle of elevation form

frozen [14]

If you draw a diagram of this, your given values of the resulting triangle give you the sides opposite and adjacent of the angle. The formula that uses these sides is tangent.

The tangent of an angle is equal to the ratio of the opposite side over the other non-hypotenuse side (adjacent).

Therefore;

$tan(40)=70/x$
$0.83909963117=70/x$
$0.83909963117x=70$
$x=70/0.83909963117$
$x=83.4227514823$

Where x is the length of the string in feet.

3 0

3 years ago

Last month, 349 books were checked out from the school library. This month, 273 books were checked out. Find the Percent of Chan

Alexeev081 [22]

Last month to this month

8 0

3 years ago