Answer: (0.760, 0.820)
Step-by-step explanation:
Let p be the population proportion of all adults feel that "education and our schools" is one of the top issues facing California.
Given : 79% (actual results are 400 out of 506 surveyed) of California adults feel that "education and our schools" is one of the top issues facing California.
i.e.Sample size : n= 506
Sample proportion : 
Critical value for 90% confidence interval ( Using z-value table) :

Now, the 90% confidence interval for the population proportion will be :

i.e. 
i.e. 

Hence, the 90% confidence interval for the population proportion= (0.760, 0.820)
Answer:
<em>7</em>
Step-by-step explanation:
You need to solve for z
Add 7 to both sides
3z = 21
Divide by 3
z = 7
Answer:

Step-by-step explanation:
we know that
---> by addition angle postulate
we have
----> given problem
----> given problem
substitute in the expression above

Divide by 2 both sides

Answer:
Explanation is in a file
Step-by-step explanation:
The zeros are 3 and -5. Hope this helps!