Answer:
a) Mean: 13.25
Variance: 11.02
b)
0 if x below than 7.5
is x in between 7.5 and 19
1 if x higher than 19.
Step-by-step explanation:
This is a problem in which we use the uniform probability distribution.
(a) What are the mean and variance of depth?
The mean is the midpoint of 7.5 and 19. So
The mean is 13.25
The variance is given by the following formula:
In which b and a are the limits of the interval. So 
So
The variance is 11.02.
(b) What is the cdf of depth?
The uniform probability distribution has a cummulative distribution function, of 0 if is below a, 
for x in between a and b and 1 is x is greater than b.
So:
0 if x below than 7.5
is x in between 7.5 and 19
1 if x higher than 19.
Answer:
D is correct
Step-by-step explanation:
A linear expression contains no higher power exponents than 1
Only D satisfies this as 4x+4 is the same as 4x^1+4
Hope this helped!
Given:
Length of the wall = 8 ft
Width of the wall = 6 ft
Length of the window = 2 ft
Width of the window = 18 in
To find:
The square feet Jamin planning to paint
Solution:
Area of the wall = length × width
= 8 × 6
Area of the wall = 48 ft²
Width of the window = 18 in
Convert inch to feet.
1 feet = 12 inch
18 inch = 
ft
Area of the window = length × width
= 2 × 1.5
Area of the window = 3 ft²
Area to be painted = Area of the wall - Area of the window
= 48 ft² - 3 ft²
= 45 ft²
Therefore Jamin planning to paint 45 ft².
If we multiply the first numbers in the three parentheses we get 9*12*2 = 216
then x's come to x to 1 and the y terms come to y^9
so the answer is 216y^9
The information we have is:
So we can find that two coordinates are ( -2,-8 ) and ( 3,7 ) so we can use the equation to find the slope so:
So the equation now will be:
So we can replace one coordinate to find b so:
So the final equation is:
