It’s -4(3x+6) because if you solve it you get a different answer then all of them all over them were the same answer except -4(3x-6)
Answer:
And the 95% confidence interval would be given (0.419;0.481). And the best option would be:
b. .419 to .481
Step-by-step explanation:
We know the following info:
sample size selected
represent the number of people who favored Candidate AT
The sample proportion would be:
![\hat p=\frac{450}{1000}=0.45](https://tex.z-dn.net/?f=%5Chat%20p%3D%5Cfrac%7B450%7D%7B1000%7D%3D0.45)
The confidence interval would be given by this formula
For the 95% confidence interval the value of
and
, with that value we can find the quantile required for the interval in the normal standard distribution.
And replacing into the confidence interval formula we got:
And the 95% confidence interval would be given (0.419;0.481). And the best option would be:
b. .419 to .481
Answer:
x = 12
Step-by-step explanation:
Given the expression
we are to find the value of x;
Step 1; Rearrange the equation:
![\frac{x}{4} + 5 = 8\\](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B4%7D%20%20%2B%205%20%3D%208%5C%5C)
Step 2: subtract 5 from both sides of the equation:
![\frac{x}{4}+5-5 = 8-5\\\frac{x}{4} + 0 = 3\\\frac{x}{4} = 3\](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B4%7D%2B5-5%20%3D%208-5%5C%5C%5Cfrac%7Bx%7D%7B4%7D%20%2B%200%20%3D%203%5C%5C%5Cfrac%7Bx%7D%7B4%7D%20%3D%203%5C)
Step 3: Find the value of x:
![x = 4*3\\x = 12](https://tex.z-dn.net/?f=x%20%3D%204%2A3%5C%5Cx%20%3D%2012)
Hence the solution to the equation is 12 not -72
1. Jamestown
2. Plymouth and Boston
3. Savannah
4. Charleston
5. Providence
6. Philadelphia
7. St. Mary's
8. Hartford
9. New Amsterdam
The given equation is:
x = - 2i – 10
Calculating for values of i = 1 to 12
x (1) = -2 – 10 = -12
x (2) = -4 – 10 = -14
x (3) = -6 – 10 = -16
x (4) = -8 – 10 = -18
x (5) = -10 – 10 = -20
x (6) = -12 – 10 = -22
x (7) = -14 – 10 = -24
x (8) = -16 – 10 = -26
x (9) = -18 – 10 = -28
x (10) = -20 – 10 = -30
x (11) = -22 – 10 = -32
x (12) = -24 - 10 = -34
Getting the sum of all:
<span>12th partial sum = -276</span>