I believe the correct answer would be A.
I assume this because compared to the other given options, this method would target the most diverse audience.
Answer:
15 because 32 - 17 = 15
Step-by-step explanation:
Looks like the equation is
Substitute 
, so that 
. Then the equation is the same as
Integrate both sides to get
Given that 
, we have
so the solution is
Answer:
the number of pensioners in the sample is 40
Step-by-step explanation:
The computation of the number of pensioners in the sample is shown below:
Given that
The Ratio of children to adult visitors is 1:2
The ratio of adults to pensioners is 3:4
And, the total number of seats is 85
Based on the above information,
The common ratios we could write as
1.5 : 3 : 4
Now we doubled it
3 : 6 : 8
So, the number of pensioners in the sample is
= 85 × 8 ÷ (3 + 6 +8)
= 40
Hence, the number of pensioners in the sample is 40
105 degree , I think but not sure
