Since we want to estimate the percentage of adults in the town who belong to a gym. We should take a random sample from the town itself because a store’s adult customers, or their friends, or first 20 customers every day for one week, or adults at the local park might not represent better sample for survey.
Therefore, Take a random sample of adults in the town, and ask each person whether he or she belongs to a gym. Calculate the percentage of the total who say “yes.”
Hence, option D describes a method that will help the marketing department accurately estimate this percentage.
40/100 x 70
= 2800/100
Cancel out the 0’s
Ans: 28 beads
Answer:
The relation is a function
Step-by-step explanation:
Given
Required
Determine if the points is a function or not
A relation can be expressed as: 
Where
When any domain element occurs more than once, then the relation is not a function.
The domain of the above points are:
In this case, no domain occur more than once; in other words, no x value occur more than once
<em>Hence, the relation is a function</em>
Answer:
a = -9/20
Step-by-step explanation:
We can evaluate what’s on the left hand side of the equation to get what a is.
The numerator can be expressed as x^(4/5)
The denominator is x^5/4
we use the law of indices to finish this off
That would be;
x^(4/5) ÷ x^(5/4)
Using the second law of indices;
x^(4/5-5/4) = x^-9/20
Since the bases are now equal, then we equate the powers
Thus a = -9/20
8 is the greatest common factor
