Answer:
x<2
Step-by-step explanation:
Your Slope is 2/3
Find one point then find the other, and do how many times you rose to get to the other point, over how many times you ran.
A = s^2 and P = 4s.
So if A = 25, then s^2 = 25 so s = 5. Then 4*s = 4*5 = 20
The perimeter of a square with an area of 25cm^2 is 20cm.
Increase the perimeter by 4 to get 24cm. Then 4s = 24 implies s = 6. Then s^2 = A = 6^2 = 36.
Now the area is 36 cm^2
Answer:
Step-by-step explanation:
Given that an observation from a normally distributed population is considered "unusual" if it is more than 2 standard deviations away from the mean. There are several contaminants that can harm a city's water supply. Nitrate concentrations above 10 ppm (parts per million) are considered a health risk for infants less than six month of age.
We can say 1.59 and 2.52 if taken average would be the mean
Mean = 2.01
The deviations on either side = 2.52-2.01 = 0.41
This can be taken as 2 std dev
So std dev = 0.205
Hence we can take nitrate concentration is normal with mean = 2.01 and std deviation is 0.205
N(2.01, 0.205)
