Answer:
The mean number of the children is 1.2
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Step-by-step explanation:
Given
Children: 0, 1, 2, 1, 2
Required
Determine the Mean number
The mean of a set is calculated as follows;

Where x is the given set and n is the number of sets
In this case, n = 5 children
Hence;



<em>Hence, the mean number of the children is 1.2</em>
Answer:
-3
Step-by-step explanation:
(3x + 10)98°
294x+980
294x=-980
X=-980/294
X=-3
So the value of X is -3
Tan (x) = 0.8. To calculate the angle x, find the tan⁻¹ (0.8) = 38.7°
Answer:
John is 9 and Olivia is 12
Step-by-step explanation:
12+18= 20
36+ (9x8)= 108