Answer:
The given equation is
Which is the definition of the angle of repose.
<em>Remember that the angle of repose refers to the angle between the horizontal plane and the inclined side of the cone formed when we allow to fall freely granular materials.</em>
We know by given
Replacing these values, we have
Therefore, the angle of repose is 38.29° approximately.
Now, if the base diameter is 104 feet, the height would be
Therefore, the height would be 65.8 feet, assuming that the angle of repose is the same.
Part A 60x3=180
5x30=150
150+180=330 sry only doing part A
Answer:
Step-by-step explanation:
First of all I'm going to presume it means an eight-grader chosen at random from the instrument players, if this is incorrect the question should have specified the total amount of students.
You have to add the amount of students of each of instrument to get the total:
5+9+10+9=33
then it says to not include the drum playing students so it goes from
to 
so its 
which we must now turn to a percentage.
so you divide the 23 by the 33:
23/33=0.6969....
then you multiply by 100 as it's a percentage:
0.6969...×100=69.6969...
and finally we round it do the nearest integer/whole number:
70 (we look at the tenths digit and it's a 6 so it's rounded up)
