Answer:
- Mean = 16.9
- Mode = 18
- Median = 17.5
Step-by-step explanation:
<u>Given data:</u>
- 18, 19, 16, 18, 14, 17, 18, 15
<u>The data in the ascending order:</u>
- 14, 15, 16, 17, 18, 18, 18, 19
<u>The mean:</u>
- (14 + 15 + 16 + 17 + 18*3 + 19)/8 = 16.9 (rounded)
<u>The median:</u>
- (17 + 18)/2 = 17.5 (the average of middle terms)
<u>The mode:</u>
- 18 (the most repeated number)
Answer:
C. The ratio of the area to the circumference is equal to half the radius.
Step-by-step explanation:
The area of a circle can be written as;
Area A = πr^2
The circumference of a circle is;
Circumference C = 2πr
Using the formula, w can derive the relationship between the two variables.
A = kC
k = A/C
Substituting the two formulas;
k = (πr^2)/(2πr) = r/2
So,
A = (r/2)C
A/C = r/2
The ratio of the area to the circumference is equal to half the radius.
Given;
Area = 200.96
Circumference = 50.24
Radius = 8
To confirm;
k = r/2 = 8/2 = 4
Also,
A/C = 200.96/50.24
A/C = 4
Answer:
i will say 15 and -7
Step-by-step explanation:
15+-7=8 and 15--7=22
15+-7 so take the negative and take out that mush of the big number
15-7=8
15--7= the subtracting beside a negative makes it changes to positive and addition so 15+7=22
Answer:
the mean of A and C is 10
Step-by-step explanation:
Given;
mean of A and B = 20
mean of B and C = 24
mean of A, B and C = 18
Recall; A = 40 - B
A = 40 - 34
A = 6
Also, C = 48 - B
C = 48 - 34
C = 14
Therefore, the mean of A and C is calculated as;
