3<em>x</em> ² - 2<em>x</em> + 1 = 2<em>x</em> ² - 3<em>x</em> + 7
<em>x</em> ² + <em>x</em> - 6 = 0
(<em>x</em> + 3) (<em>x</em> - 2) = 0
<em>x</em> + 3 = 0 <u>or</u> <em>x</em> - 2 = 0
<em>x</em> = -3 <u>or</u> <em>x</em> = 2
Answer: 0.0010
Step-by-step explanation:
Given the following :
Population Mean(m) = 4.2 years
Sample mean (s) = 3.9
Standard deviation (sd) = 0.6
Number of samples (n) = 38
Calculate the test statistic (z) :
(sample mean - population mean) / (sd / √n)
Z = (3.9 - 4.2) / (0.6 / √38)
Z = (- 0.3) / (0.6 / 6.1644140)
Z = -0.3 / 0.0973328
Z = - 3.0822086
Z = - 3.08
From the z table :
P(Z ≤ - 3.08) = 0.0010
Answer: The answer is B)
Step-by-step explanation:
The slope of the blue line is
3
4
, and the y-intercept is −1; therefore, the equation for the line is y =
3
4
x − 1.
The slope of the black line is −
4
3
, and the y-intercept is 9; therefore the equation for the line is −
4
3
x + 9. OFF OF USATESTPREP
It is d idk if its d r b idk hope one is right
Just add 0.2 to 3.0 and the number after:
3.0, 3.2, 3.4, 3.6, 3.8
Hope I helped :)
