Please help me! I have to sumbmit in 15 minutes!
2 answers:
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The two numbers are illustrations of system of equations
The two numbers are 2.7 and 37.3
<h3>How to determine the two numbers?</h3>Let the numbers be x and y.
So, we have the following equations
x + y = 40
xy = 100
To determine the value of the variables, we simply plot the graph of both equations
From the graph, we have the following result
(x,y) = (2.7, 37.3)
Hence, the two numbers are 2.7 and 37.3
Read more about system of equations at:
Answer:
a
The average cost is
b
The standard deviation of cost is
Step-by-step explanation:
From the question we are told that
The cost of replacing the two component is C = 50 + 2 X + 4 Y
The variance of X is mathematically represented as
V(X) =
Substituting values
The variance of Y is mathematically represented as
V(Y) =
Substituting values
The average of replacing the two component is
substituting value
The variance of replacing the two component is
Note: The variance of constant is zero
and X and Y are independent
=>
substituting values
=>
=>
=>
The standard deviation is
substituting values