Answer:
95% confidence interval: (2.784,3.176)
Step-by-step explanation:
We are given the following information in the question:
Sample size, n = 25
Sample mean = $2.98
Standard error = $0.10
Alpha = 0.05
95% confidence interval:
Putting the values, we get,
Answer:
1. 8x2 - 7x + 4x3 - 2-3x2 + 9x - 4 = 16+2x
Step-by-step explanation:
1. Multiply all the multiplication problems (should look like this --> 16-7x+12-2-6+9x-4)
2. Calculate the sum or difference (should end up looking like this --> 16-7x+9x) and then into this (16 +2x)
Bringing us to the answer → <u>16 + 2x!</u>
<u></u>
Answer:
(2x+1)(x+3)
2x(x+3)+1(x+3)
2x2+6x+x+3
2x2+7x+3 (2x2 means two x square)
if you want you can also multiply 2x+3 by x+3
like this:
(2x+1)(x+3)
x(2x+1)+3(2x+1)
2x2+x+6x+3
2x2+7x+3 (2x2 means two x square)
They will both give you the same answer.
Answer:
C, None of the above
Step-by-step explanation:
Step 1: Expand the brackets
-7 - 3(-4e-3)
-7 + 12e + 9
Step 2: Collect like terms
12e + 2
Because the answer is not a or b the answer is 'None of the Above'
