Answer:
4.25
Step-by-step explanation:
Here in this question, we want to calculate the mean absolute deviation of the data.
The first thing we will do here is to calculate the mean;
= (74 + 79 + 76 + 85 + 87 + 83 + 86 + 78)/8 = 81
Now, the next thing to do here is to calculate how far each of the values have deviated from the mean. This can be calculated by subtracting the mean from each individual value;
This is presented in the table on the attachment, please check attachment for this
Afterwards, we find the absolute value of all these subtractions then divide by 8 which is the number of values in the data.
Mean absolute deviation = Sum of all absolute deviations/number of values in dataset
-3x<18
x> -6 ( it’s x is greater than/ less -6 than I just don’t know how to do that symbol)
Answer: 29 feet (deepest) at 6 am
21 feet (shallowest) at Midnight & Noon
<u>Step-by-step explanation:</u>
y = -4 cos (π/6)t +25
Amplitude (A) = 4
-A means it is a reflection over the x-axis (starts at minimum)<em> </em>
Period = 2π/B → Period = 12
Phase shift = C/B → Phase Shift = 0
Midline (D) = 25
Midline (D) ± Amplitude (A) = Max & Min
Max: 25 + 4 = 29
Min: 25 - 4 = 21
Change the coordinates of y = cos (x) as follows:
- x-value: Add C then divide by B
- y-value: Multiply by A then add D
Note that the equation shows: A = -4, B = π/6, C = 0, D = 25

The answer is 10 9/10 hope this helped
Answer:
Total money earned = £1,947.35
Step-by-step explanation:
Given:
Per ticket cost = £3.95
Number of rows = 17
Number of seats in each row = 29 seats
Find:
Total money earned.
Computation:
Total number of seats = Number of rows × Number of seats in each row
Total number of seats = 17 × 29
Total number of seats = 493 seats
Total money earned = Total number of seats × Per ticket cost
Total money earned = 493 × £3.95
Total money earned = £1,947.35