Christian worked for eight weeks over the summer as a landscaper. The pay he earned for each of the eight weeks is shown in the data table.
1. Determine the mean of the data.
2. Determine the difference of each weekly pay from the mean.
3. Calculate the square of each difference.
4. Add the squares of the differences.
5. Calculate the variance by dividing the sum of the squares by "n-1". Round to the nearest cent.
6. Determine the sample standard deviation. Round to the nearest cent.
Difference from the mean
(Difference from the mean)
Money Earned
X-
X-X
255
-7.5
56.25
300
37.5
1406.25
260
-2.5
6.25
200
-62.5
3906.25
250
- 12.5
156.25
235
-27.5
756.25
275
12.5
156.25
3906.25
325
Mean
262.5
62.5
Sum of (differences from mean)
(x-x)
Standard Deviation: 3(x-x)
Variance: 3(x-)
n-1
n-1

-4

step-by-step explanation:

do 6-10=

if u need it to be negative.

answer: b. f(x) = (x + 2)^3 (x^2 - 7x + 3)^4

step-by-step explanation:

polynomials always have as many roots as their order. this is a 4th order polynomial- hence 4 roots!

complex roots of polynomials always come in pairs. the quadratic equation has the "+/-" in that will alwaysgenerate m+ni amd m-ni, so 7-2i must be a root of this polynomial equation.

the order of the numerator and denominator are both 2. so the horizontal asymptote is y=a2/b2 =7

verticle asymptotes are the forbidden x-values. f(x) becomes undefined at x=-3 because this value will cause a zero denominator.

a graph of r(x) will have vertical asymptotes at ±1 because these values will make the denominator zero. so the domain of the function cannot include ±1.

you 're wlecome! : )

cretdit to source

111

step-by-step explanation: