8 units to the right of the axis of symmetry is x = 7, being one of your x-intercepts. Then 8 units to the left would be x = -9. Making x = -9 your missing x-intercept.
withdrawals are when cash is taken out from the account
Flora withdraws an amount of $75 at a time from her bank account
she makes 7 such withdrawals
one withdrawal she takes out - $75
then seven withdrawals leads to - $75 x 7 = $525
then overall change in her account has been a net withdrawal of $525
so the overall change in the account is -$525
Answer:
Step-by-step explanation:
Let X denote the random variable that obeys the normal distribution.
Given that:
<u>For morning flights</u>
Mean = 15
standard deviation = 5
Sample size = 10
The Z - score is calculated as:
Z = 3
<u>For evening flights</u>
Mean = 20
standard deviation = 3
Sample size = 10
Z = 3.33
Hence, from the above z-scores, we will realize that the evening flight is more late than usual.