Members of a baseball team raised $1611.75 to go to a tournament. They rented a bus for $791.50 and budgeted $48.25 per player f
2 answers:
You might be interested in
The perimeter of the equatorial triangle is 24 units
<h3><u>Solution:</u></h3>Given that,
An equilateral triangle has an height equal to
The triangle is shown below
From Triangle ABC in the shown figure AD
Let the sides of the equilateral triangle be ‘a’
AB = BC = a
Since, it is an equilateral triangle we get,
BD = DC = a ÷ 2
Now, using Pythagoras Theorem in Triangle ABD,
The Pythagorean theorem is this: In a right triangle, the sum of the squares of the lengths of the two legs is equal to the square of the length of the hypotenuse.
a = 8
Hence, the three sides of the triangle are 8 units each
In equilateral traingle, length of all three sides of triangle are equal
So, Perimeter = 3 (Length of each side of triangle)
Perimeter = 3 8 = 24
Thus the perimeter of the equatorial triangle is 24 units
Answer:
The total number of marbles in the bag is 50.
Step-by-step explanation:
Here, we have n trials, without replacement. So the hypergeometric distribution is used.
The mean of the hypergeometric distribution is:
In which n is the number of items in the sample, k is the number of items in the population that are classified a success and N is the size of the population.
15 marbles are drawn:
This means that
A bag contains some number of marbles. It is known that 20 of them are red.
This means that , since a success is drawing a red marble.
Assuming E(X)=6 red, what is the total number of marbles in the bag?
We have to find N when
So
The total number of marbles in the bag is 50.