Determine whether or not the distribution is a discrete probability distribution and select the reason why or why not. x 1 5 8 P
1 answer:
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Answer:
Part a) The quadratic function is
Part b) The value of x is
Part c) The photo and frame together are wide
Step-by-step explanation:
Part a) Write a quadratic function to find the distance from the edge of the photo to the edge of the frame
Let
x----> the distance from the edge of the photo to the edge of the frame
we know that
Part b) What is the value of x?
Solve the quadratic equation
The formula to solve a quadratic equation of the form
is equal to
in this problem
we have
so
substitute in the formula
-----> the solution
Part c) How wide are the photo and frame together?
Answer:
Step-by-step explanation:
Well we can simplify the numerator, by multiplying the 4 by the 6 and the m^3 and m^4 (add the exponents, explained in one of my previous answers I think)
This gives us the fraction:
We can now divide the m^7 by m^2 by subtracting the exponents, and the reason why this works, is you're simply cancelling out the m's, If we express this in expanded form we have the following fraction:
Since there is two m's in the denominator and there is also two (more than two) m's in the numerator, we can cancel those two m's out, and we get the fraction:
which can be simplified in exponent form as:
, now all we have to do is divide the 24 by the 3, to get 8
This gives us the answer: