Answer:
see explanation
Step-by-step explanation:
Let u = x² ( choice of variable is flexible ), then
4u² - 21u + 20 = 0 ← expressed as a quadratic
This can now be solved for u and converted back into terms of x
The 2nd part:
( -2,-1)
(0,3)
( -4,2)
Answer: A) 0.016
Step-by-step explanation:
The standard error is also known as the standard deviation of sampling distribution.
Formula : 
Given : The proportion of respondents approve the job that President Barack Obama was doing handling the economy : 
Sample size : n= 1000
Then, the standard error (SE) of
is

Hence, the standard error (SE) of
is 0.016 .
2/30 cause you can simplify easy
Answer:
112 = 1 x 112, 2 x 56, 4 x 28, 7 x 16, or 8 x 14. Factors of 112: 1, 2, 4, 7, 8, 14, 16, 28, 56, 112
Step-by-step explanation: