Answer: The rational expression that is needed is z^5/8.
In the problem, we are starting with 4z^5/7 and multiply by something. Then, we have z^10/14.
First, let's deal with the variables. We go from z^5 to z^10, so we had to multiply by z^5.
Second, our fraction went from 4/7 to 1/14, the missing factor would be 1/8 because 4/7 times 1/8 equals 1/14.
Using sampling concepts, it is found that the sampled is biased because only parents who attend the school's musical show are surveyed, hence they are not very likely to support the decrease, and the population proportion should be greater than the one found in the show.
<h3>How are samples classified?</h3>
Samples may be classified as:
- Convenient: Drawn from a conveniently available pool.
- Random: All the options into a hat and drawn some of them.
- Systematic: Every kth element is taken.
- Cluster: Divides population into groups, called clusters, and each element in the cluster is surveyed.
- Stratified: Also divides the population into groups. Then, a equal proportion of each group is surveyed.
A sample has to take into account all aspects of the population, otherwise it is biased. In this problem, either people support the decrease, or they do not. Only people that went to the show were surveyed, that is, people who are unlikely to support the decrease, which generates bias, as the population proportion should be greater than the one found in the show.
More can be learned about sampling concepts at brainly.com/question/25122507
<h2>
The required "option A) " is correct.</h2>
Step-by-step explanation:
We have,
To find, the value of = ?
∴ , where a, b and x are positive
a ≠ 1 and b ≠ 1
We know that,
The logarithm identity,
∴ =
Where, b is the common base of logarithm
∴ The value of =
Thus, the required option A) is correct.
Answer:
2nd number is correct
Here's your solution
=> 2p(-3p^2 + 4p - 5)
=> multiple 2p with whole
=>. -6p^3 + 8p^2 - 10p
this is your answer
hope it helps