42.57s >_12000
42.57 is the amount spent per shopper and s stands as the variable which is the number of shoppers. multiply them and it must get at least 12000
Answer:
94.716
Step-by-step explanation:
CAH
cos=adj/hyp
cos 63= 43/r
rcos63=43
r=43/cos63
r=43/0.453399
r= 94.716
Answer:
9.53674E+13
Step-by-step explanation:
given that 20 different comic books will be distributed to five kids.
Also given that there are no restrictions on how many go to each kid (other than the fact that all 20 will be given out)
Hence each kid can get any number of books and there is no chance a kid does not get any book also.
There are 5 kids.
Take the first book. It can be given to any one of the 5 kids in 5 ways
Now second book can be similarly given to any one of the 5 kids in 5 ways
this continues for all 20 books
Total no of ways = 
The stock market increased 75 point: = +75 or 75
Answer:
The volume of the hollow ball will be equal to the difference between the volume of a sphere with the outer radius and the volume of a sphere with the inner radius.
Remember that the volume of a sphere of radius R is given by:
V = (4/3)*pi*R^3
where pi = 3.14
Then if R is the outer radius, and r is the inner radius, the volume of the hollow ball is:
V = (4/3)*pi*( R^3 - r^3)
In this case, we have:
R = 200m
r = 100m
Then the volume of the hollow ball is:
V = (4/3)*3.14*( (200m)^3 - (100m)^3)
V = 29,306,666.67 m^3
Now, if this hollow ball is made of iron, we want to find the mass.
Remember the relation:
Mass = Density*Volume.
We know that the density of the iron is:
D = 7300 kg/m^3
Then the mass of this hollow ball is:
M = (7300 kg/m^3)*(29,306,666.67 m^3) = 213,938,666,666.6 kg
