Answer:
2
Step-by-step explanation:
We can first find x:
6 (x - 3) + 3 = 6x - 3 (3 - x)
6x - 18 + 3 = 6x - 9 + 3x
6x - 15 = 9x - 9
We can then islolate x, getting 3x = -6 and x = -2.
We can then plug in -2 for x and solve x^2 - x:
(-2)^2 - 2 = 4 - 2 = 2
Answer:
Step-by-step explanation:
Given that the possible values of X, the number of components in a system submitted for repair that must be replaced are 1,2,3, and 4 with corresponding probabilities 0.15, 0.35, 0.35, and 0.15 respectively.
X 1 2 3 4
p 0.15 0.35 0.35 0.15 1
x*p 0.15 0.70 1.05 0.60 2.50
a)E(x) = 2.50
By linearity property
E(5-x) = 5-E(x) = 2.50
b) If fees it 75 then charges would be
Else repair charges = 
II one is better
First of all, find the first number more than 100 that can divided by 9, and it's 108 (we'll call it as 'a') then, find the number less than 2000 that can divided by 9, it's 1.998 (we'll call it as 'Un')
Un = a + (n-1).b
1998 = 108 + (n-1).9
1998 = 108 + 9n -9
1899 = 9n
211 = n
and the total is
Sn = n/2 (a+un)
s211 = 211/2 (108+1998)
= 222.183
There's a 25 percent chance that they have three cats and 75 percent chance that they have three dogs
Theabsolute value equation that has a solution set of -4 and -8 is |2 - x| = -6
<h3>How to determine the absolute value equation?</h3>
The solution sets on the number line are given as:
x = {-8, -4}
Calculate the average of the solutions
Mean = (-8 - 4)/2
Mean = -6
Calculate the difference of the solutions divided by 2
Difference = (-4 + 8)/2
Difference = 2
The absolute value equation is the represented as:
|Difference - x | = Mean
Substitute known values
|2 - x| = -6
Hence, the absolute value equation that has a solution set of -4 and -8 is |2 - x| = -6
Read more about absolute value equation at:
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