4/5 would equal in decimal form as .8
so there are 8 tenths in 4/5 :)
Answer:
We need a sample size of at least 657.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of
, and a confidence level of
, we have the following confidence interval of proportions.

In which
z is the zscore that has a pvalue of
.
The margin of error is given by:

45 percent of its claims have errors.
So 
99% confidence level
So
, z is the value of Z that has a pvalue of
, so
.
What sample size is needed if they wish to be within 5 percent of the actual
This is a sample size of at least n, in which n is found when M = 0.05.







We need a sample size of at least 657.
To help answer the questions
Is all you need to solve the equation or is there more to it?
Answer:
2 and 5 for sure. I think 4 is correct, but your teacher may not.
Step-by-step explanation:
The given expression reduces down to -7m - 8 = m - 4
1 cannot give -15m on the right. One seldom sees that mistake on Brainly.
3 does not do that. - 3m is not - 7m
4 has it's sides reversed. I would count it is right, others may not. I'm trying to say the left side is on the right side and the right side is on the left. That to me is OK.
5 is Ok as well the left is written as -8 - 7m which is -7m - 8. and with -4 and m
6 has been reduced on the left incorrectly. the right is it's signs backwards
2 4(?) and 5