Answer:
solving the inequality we get:
Step-by-step explanation:
We need to solve the inequality
Solving the inequality and finding value of x:
First we will be switching sides i.e. left hand side will become right hand side and right hand side will become left hand side. In doing so, the inequality sign i.e. > will be reversed and changed with <
Now, for finding value of x, we will be adding 48 on both sides
The value of x is less than 17 i.e.
So, solving the inequality we get:
The tip should be $2.82, making the entire payment $21.62
Answer:
And we can find this probability using excel or the normal standard tabe and we got:
Step-by-step explanation:
Previous concepts
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".
Solution to the problem
Let X the random variable that represent the temperatures 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 the best way to solve this problem is using the normal standard distribution and the z score given by:
If we apply this formula to our probability we got this:
And we can find this probability using excel or the normal standard tabe and we got:
Answer:
The product of two integers is #75# and their sum is #-28#. i dont know if this is helpful