Answer:
Option: C is the correct answer.
C. Periodic with period 4 and amplitude of about 15.
Step-by-step explanation:
We are given the table of values as:
Hour 1 -- 2 -- 3 -- 4 -- 5 -- 6 -- 7 -- 8 -- 9 -- 10 -- 11
Number 24-41-10-32-26-38-9-31-25-39-12
of boats
As we could see that after every 4 value the values are approximately repeating.
Hence,the data set is approximately periodic.
Also, the amplitude is calculated as:
Average of the maximum and minimum value of each set
We divide the set into 3 sets as follows:
Hour 1 2 3 4
Number of boat 24 41 10 32
Here we have amplitude as:
(41-10)/2=15.5
Hour 5 6 7 8
Number of boat 26 38 9 31
Amplitude is:
(38-9)/2=14.5
Hour 9 10 11 12
Number of boat 25 39 12
Amplitude is:
(39-12)/2=13.5
Hence, we see that the amplitude is about 15.
The answer would be (A) 6
Part a:-
7.15 rands = 1 dollar
So we are going to MULTIPLY to find out how many rands there are going to be.
1000 × 7.15 = <span>7150
<span>So, 7150 rands is your answer.
Part b:-
To do this first we will DIVIDE.
6274 </span></span>÷ 7.15 ≈ <span>877.482.......
So, 6274 rands is ABOUT $878.
Par a:- 7150 rands
Part b:- about $878.
Hope I helped ya!!!!!</span>
4y - (3+y) is standard form is: 3y - 3
No triangle 60+40=100 which is the same as one side
