Answer:
The proportion of the population which is infected is =0.07692
Step-by-step explanation:
Let the events be,
A: a person is infected.
B: the test result is positve
According to the question we have,
So
Hence,
Now
The probability that a person is infected is
So the probability that a person is infected is =0.07692.
The proportion of the population which is infected is
Hence the proportion of the population which is infected is =0.07692
It is just 6 because make a number line to -22 and to 22 then you start negative 7 then move up 22 and then go down 9 THE ANSWER IS 6
Answer:
f(-10) = 186
Step-by-step explanation:
Sub in -10 to the x - values:
f(x) = 2 + - 4
f(-10) = 2(-10)^2 - 10 - 4
f(-10) = 200 - 10 - 4
f(-10) = 186
Answer:
Number of workers = 20.
Step-by-step explanation:
p = - 4w^2 + 160 w
We need to find the value of w when p is a maximum.
We need to convert the equation to vertex form:
p = -4w^2 + 160w
p = -4(x^2 - 40w)
p = -4 [ (x - 20)^2 - 400]
p = -4(x - 20)^2 + 1600.
So the vertex is at (20 , 1600)
The maximum profit is 1600 and the number of workers = 20.
You should use a calculator for this type of problem, but the answer would be 6.816