Answer:



Step-by-step explanation:
In this case we can calculate the probability using the binomial probability formula

Where p is the probability of obtaining a "favorable outcome " x is the number of desired "favorable outcome " and n is the number of times the experiment is repeated. In this case n = 10 and p = 0.54.
(a) exactly five
This is:

So:


(b) at least six
This is: 


(c) less than four
This is: 


Answer:
B) Ill only
Step-by-step explanation:
This is because y = arcsin x can be re-written as sin y = x, We then differentiate sin y = x implicitly with respect to z to obtain
d(siny)/dz = dx/dz
(cosy)dy/dz = dx/dz
dy/dz = (1/cosy)dx/dz
2x+2x+60=180 because the angles have to add up to 180
So you have
4x+60=180
4x=120
x=30