Answer:
Step-by-step explanation:
We know that the heron wingspan follow a normal distribution with an mean of 125 cm.
In this case we seek to find
If X is a random variable that represents the length of the heron wingspan, then X follows a normal distribution and therefore is a continuous random variable.
Then by definition of continuous random variable we have to:
where a is a constant.
That is to say that only the ranges of values can have a different probability of zero. The probability that a continuous random variable is equal to some exact value is always zero.
Finally we can conclude that
Rewrite the equation as
If we choose , the right hand side becomes zero, and so does the left hand side.
If you graph the two functions and , you'll see that there are only two solutions, so the ones we found are the only ones.
Answer:
b is a correct answer
Step-by-step explanation:
that is correct and right answer.
30% = 30/100 = (30 x 3)/(100 x 3) = 90/300
1/3 = (1 x 100)/(3 x 100) = 100/300
As 90/300 < 100/300
Therefore 30% < 1/3
f(x + n) - translate n units left
f(x - n) - translate n units right
f(x) + n - translate n units up
f(x) - n - translate n units down
We translate the graph 1 unit down, therefore we have f(x) - 1. Substitute to the equation of function f(x) = |2x| - 1
f(x) + 1 = |2x| - 1 - 1 = |2x| - 2 = 2|x| - 2