Answer: a) 15, b) 1.
Step-by-step explanation:
A researcher studying public opinion of proposed social security changes obtains a simple random sample of 35 adult Americans and asks them whether or not they support the proposed changes. To say that the distribution of the sample proportion of adults who respond yes, is approximately normal, how many more Americans does the researcher need to sample in the following cases?
(a) 10% of all adult Americans support the changes
Here, 
And , 
So, consider the equality, to find the value of 'n'.
So, there are 
more adult Americans needed.
(b) 15% of all adult Americans supports the changes
Here, 
So, again we get that
So, there are 
more adult Americans needed.
Hence, a) 15, b) 1.
Since the lines have the same slopes, hence they are parallel lines
<h3>How to determine the relationship between lines</h3>
We can determine the relations by knowing the slopes of the line
For the line with coordinates (9, –5) and (5, –2)
Slope = -2+5/5-9
Slope = -3/4
For the line with coordinates (–4, –2) and (–8, 1)
Slope = 1+2/-8+4
Slope = -3/4
Since the lines have the same slopes, hence they are parallel lines
Learn more on parallel lines here: brainly.com/question/16742265
#SPJ1
85p per (1/2) kg.
1 kg = 1000g, (1/2)kg = (1/2) * 1000 = 500 g
It means:
500g cost 85p
1g would cost 85p/500
100g would then cost (85p/500) * 100 = 19p
Cost of 100g is = 19p
Hope this explains it.
Answer:
Step-by-step explanation:
difference of 10 and u = 10 - u
seven times the sum of twice a number m and 16 is 9 -
7 ( 2m + 16 ) = 9
5x + 6x - sum of 5 times a number and 6 times a number
8 ( x - 7 ) = -35 - 8 times the difference of a number x and 7 is -35
Hope this helps
plz mark as brainliest!!!!!
