The amount of money in Toni's savings account after x weeks is described by the function f(x) = 5x + 20. Which best interprets t
1 answer:
You might be interested in
Answer:
And we can find this probability using the normal standard table with this difference:
Step-by-step explanation:
Let X the random variable that represent the weights of a population, and for this case we know the distribution for X is given by:
Where and
We are interested on this probability
And we can solve the problem using the z score formula given by:
Using this formula we got:
And we can find this probability using the normal standard table with this difference:
Using the definition,
The numerator in the difference quotient is
Multiply the numerator and denominator by the conjugate of this expression,
The modified numerator reduces to a difference of squares,
Simplify this to get
Since x is approaching 4, it never actually takes on the value of 4, so (x - 4)/(x - 4) reduces to 1. Then the limit is equivalent to
and the remaining limand is continuous at x = 4, so that