Formula applied: p+/- Z*sqrt (p(1-p)/N)
Where
p=probability of those who will vote for candidate a = 120/400 = 0.3
Z = Critical value at 95% confidence interval = 1.96
N = Size of the sample = 400
Substituting;
Interval = 0.3+/- 1.96* sqrt (0.3(1-0.3)/400) = 0.3+/-0.045
Interval of population who will vote for candidate a at 95% confidence interval
= 0.3+0.045 to 0.3-0.045
=0.345 to 0.255 of the total population
11 ft/s
1800000 mL/h
89.6 oz/gal
Answer is 12 to your question
Answer:
![5x^{2} +3x^{3} +15-9x](https://tex.z-dn.net/?f=5x%5E%7B2%7D%20%2B3x%5E%7B3%7D%20%2B15-9x)
Step-by-step explanation:
1) Remove Parentheses:
![5x^{2} -3x^{3} +15-9x](https://tex.z-dn.net/?f=5x%5E%7B2%7D%20-3x%5E%7B3%7D%20%2B15-9x)
Hello,
So if we have the equation: -7y^3(4y + y - 3), we're essentially distributing "-7y^3" to everything of what's in the parenthesis. When you distribute -7y^3, know that you add exponents but you multiply the numbers. After simplifying you get:
-28y^4 - 7y^4 + 21y^3
**We can still simplify this expression because there are still like terms:
-35y^4 +21y^3
Hope this helps!
May