A computer is purchased for $1,200 and depreciates at $140 per year. Write a linear equation that
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The expression that represents the ratio of the difference of the two means to Sidney’s mean absolute deviation is given by: Option B: 4/3.28
<h3>What is mean absolute deviation?</h3>Mean absolute deviation is the average of the absolute deviation of each observation from their mean, for a considered set of observations.
For this case, the table of mean and mean absolute deviation is given as:
(M.A.D refers to Mean Absolute Deviation).
So, difference in their mean is 82 - 78 = 4
Absolute deviation for Sidney is 3.28
Thier ratio is: 4/3.28
Thus, the expression that represents the ratio of the difference of the two means to Sidney’s mean absolute deviation is given by: Option B: 4/3.28
Learn more about ratio here:
x=-3 then y= 27
x= -2 then y= 9
x=2 then y:
x=3 then y:
The graph of the function decreases from left to right.
Option C is correct.
Step-by-step explanation:
We are given the function:
and we need to fill the table
if x = -3 then y=?
Putting value of x in the given function:
Applying exponent rule a^-b= 1/a^b
if x = -2 then y=?
Putting value of x in the given function:
Applying exponent rule a^-b= 1/a^b
if x = 2 then y=?
Putting value of x in the given function:
Applying exponent rule a^-b= 1/a^b
if x = 3 then y=?
Putting value of x in the given function:
Applying exponent rule a^-b= 1/a^b
So, x=-3 then y= 27
x= -2 then y= 9
x=2 then y:
x=3 then y:
Graph of the function is shown in figure attached.
The graph of the function decreases from left to right.
Option C is correct.
Keywords: Solving Equations
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