f(x) = -5x - 15
Let y = f(x)
y = -5x - 15
Switch the x and y places, and solve for y:
x = -5y - 15
-5y = x + 15
y = (x + 15)/-5
y = -(x/5) - 3
So the inverse of : f(x) = -5x - 15 is
-x/5 - 3
Answer:
Step-by-step explanation:
Let X be the monthly count of salmonellosis cases in South Dakota.
And X has Poisson(A 1.62)
E(X) = \lambda = 1.62
Var(X) = \lambda = 1.62
Standard Deviation (X) = \sqrt{\lambda} = \sqrt{1.62} = 1.27
c)
Mean of salmonellosis cases in South Dakota over a six month period is = 6*1.62 = 9.72
standard deviation of salmonellosis cases in South Dakota over a six month period is = 6*1.27 = 7.62
Using 2 + .025x, the 2 represents the fixed rental rate per book, and 0.25 is the late fee per day
Answer:
a) .2 hours per dollar
b) 3 pages per minute
Step-by-step explanation:
a) The hours per dollar means take the hours and divide by the dollars
7 hours/ 35 dollars = 1/5 = .2 hours per dollar
b) pages per minute means take the pages and divide by minute
9 pages/3 minutes = 3 pages per minute
