You and three friends own a paint shop. The shop's profit was $536 in the first month. You always divide the profits equally. In
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Answer:
A line passing through the points (-1,-4),(0,0) and (1,4)
Step-by-step explanation:
we know that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form or
In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin
<u><em>Verify each case</em></u>
Part 1) A line passing through the points (-4,0) and (0,-2)
This line not represent a direct variation, because the line not passes through the origin.
Part 2) A line passing through the points (-5,4) and (0,3)
This line not represent a direct variation, because the line not passes through the origin.
Part 3) A line passing through the points (-4,-6) and (0,3)
This line not represent a direct variation, because the line not passes through the origin.
Part 4) A line passing through the points (-1,-4),(0,0) and (1,4)
The line passes through the origin
Find out the value of k
For the point (-1,-4)
substitute
For the point (1,4)
substitute
The linear equation is
This line represent a direct variation
Complete Question
The complete question is shown on the first uploaded image
Answer:
a
Yes the selection of 15 is a binomial experiment
b
c
d
Step-by-step explanation:
considering question a
Generally for and experiment to be binomial
The trial must be independent
There must be only two outcomes for each trial
Generally given that that the 15 adults are selected randomly which mean that the trials will be independent and that desired outcome is ''ether the adult save something for retirement or the adult saves nothing for retirement ''
Then we can say that the selection of 15 adult at is a binomial experiment
Considering question b
Generally the probability that all of the adults save nothing for retirement is mathematically represented as
Here C stands for combination
r = 15 i.e all the selected adults
n is the sample size with value 15
From the question p = 0.20
and q is calculated as
=>
=>
So
Considering question c
Generally the probability that exactly five of the selected adults save nothing for retirement is mathematically represented as
Considering question d
Generally the probability that at least one of the selected adults saves nothing for retirement is mathematically represented as