The situation would be an example of replication because the company is trying to find out and replicate results that would occur in the general population.
Answer:

Step-by-step explanation:

I believe what we are looking for is area. If so the formula for area of a rectangle is area equals width times length
A=wl
So:
9*13=117
The area would be 117, the amount of wall space needed is 117.
Hope this helps:)
Answer:
3 and a half miles
STEP BY STEP ANSWER:
her pay is two dollars 3 miles would get her up to 3.50$ then half a mile would get her to 3.75$
plz give brainly
Hello,
Use the factoration
a^2 - b^2 = (a - b)(a + b)
Then,
x^2 - 81 = x^2 - 9^2
x^2 - 9^2 = ( x - 9).(x + 9)
Then,
Lim (x^2- 81) /(x+9)
= Lim (x -9)(x+9)/(x+9)
Simplity x + 9
Lim (x -9)
Now replace x = -9
Lim ( -9 -9)
Lim -18 = -18
_______________
The second method without using factorization would be to calculate the limit by the hospital rule.
Lim f(x)/g(x) = lim f(x)'/g(x)'
Where,
f(x)' and g(x)' are the derivates.
Let f(x) = x^2 -81
f(x)' = 2x + 0
f(x)' = 2x
Let g(x) = x +9
g(x)' = 1 + 0
g(x)' = 1
Then the Lim stay:
Lim (x^2 -81)/(x+9) = Lim 2x /1
Now replace x = -9
Lim 2×-9 = Lim -18
= -18