Answer: The density of a certain material is such that it weighs 9 pounds per cubic foot of
Using the normal distribution, the areas to the left are given as follows:
a) 0.7910.
b) 0.6664.
c) 0.3707.
d) 0.8508.
<h3>Normal Probability Distribution</h3>
The z-score of a measure X of a normally distributed variable with mean
and standard deviation
is given by:

- The z-score measures how many standard deviations the measure is above or below the mean.
- Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X, and is also the area to the left of Z.
Hence:
- The area to the left of Z = 0.81 is of 0.7910.
- The area to the left of Z = 0.43 is of 0.6664.
- The area to the left of Z = -0.33 is of 0.3707.
- The area to the left of Z = 1.04 is of 0.8508.
More can be learned about the normal distribution at brainly.com/question/4079902
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Answer:
Option A. 
Step-by-step explanation:
Point to remember while solving the question of function,

Here, 'f' is the parent function and
is the inverse of the function 'f'.
So for the given function,
f(x) = 2x - 2

For x = -2

Therefore, Option A will be the correct answer.
X=((log(225000/200000)/log(1.03))
X=log(225,000÷200,000)÷log(1.03)
X=3.98 years
It would be 2 height above the x axis
it would be y=2