3x + 2y = 12
(x, y) = (__, 0)
3x + (2 x 0) = 12
3x + 0 = 12
3x = 12
x = 4
(4, 0)
Answer:
21378
Step-by-step explanation:
The confidence level is 90%, which gives us a Z of 1.645.
Our equation is (Z^2*p*q)/e^2
(1.645^2*p*(1-.21))/ (.01^2)
E is the error proportion, .01
Q is 1-p or the proportion
P is the pop you need
With this, we can solve
and get p = 21377.5975 and rounded to 21378
About 2000 people stay in the hospital on average
Half times pie r squared so half times pie times 22 squared so 760
