Answer:
R = 40t + 20
Step-by-step explanation:
We need to use the equation y = mx + b to solve this because it's linear.
"m" is the slope, or the rate. Here, we know that the population increases by 40 rabbits per month, which means m = 40.
"b" usually means that fixed, initial amount. Here, we know that the population begins at 20 rabbits, which means b = 20.
Plug these in:
R = mt + b
R = 40t + 20
The formula for this type of question is z=x-u/y
z=-2 (z-value)
u = 27 (mean)
y = 4 (standard deviation)
Therefore -2=x-27/4
You now figure this out like a normal equation
4x-2=4 X x-27/4
-8+27= x-27+27
19=x
Therefore the data value of x is 19