Answer:
Sample size is
Step-by-step explanation:
Given that,
Margin of error %
Confidence level %
Suppose, sample proportion
i.e.
We know that,
Margin of error
∴
squaring on both side,
∴
Hence, the sample size is,
Hence, the correct option is
Answer:
Step-by-step explanation:
Given the function
f(x) = 2x³ -3x²+ 7
putting x=-1 to find f(-1)
f(-1) = 2(-1)³ -3(-1)²+ 7
= -2 + 3 + 7
= 8
putting x=1 to find f(1)
f(1) = 2(1)³ -3(1)²+ 7
= 2 - 3 + 7
= 6
putting x=2 to find f(2)
f(2) = 2(2)³ -3(2)²+ 7
= 16 - 12 + 7
= 11
Therefore,
The increase from 675.20 was 66.50. Expressed as a percentage, that is
.. 66.50/675.20 = .098489 ≈ 10%
Answer:
<h3 />
Step-by-step explanation:
20y
Meaning 20xy
Y=1
So 20 is 20
Answer:
es 8 ksnfjskausksufbab 726+47272774