35 + 55 = 90
----------------
Answer:
170
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 of:
Assume:
90% confidence level
So 
, z is the value of Z that has a pvalue of 
, so 
.
What is the smallest sample size required to obtain the desired margin of error?
This is n for which M = 0.03. So
Rounding up, 170.
<span>Simplifying
cos(5x) + cos(2x) = 0
(5x)
cos * 5x + cos(2x) = 0
</span> 5cos * x + cos(2x) = 0
Multiply cos * x
5cosx + cos(2x) = 0
(2x)
5cosx + cos * 2x = 0
5cosx + 2cos * x = 0
Multiply cos * x
5cosx + 2cosx = 0 5cosx + 2cosx = 7cosx
7cosx = 0
Solving
7cosx = 0
Solving for variable 'c'. cosx = 0
Simplifying
cosx = 0
Hope this helps!
In short your answer is 0
Answer:
the slope is 3/2 or 1.5 they are the same
Step-by-step explanation:
