Divide 7 by 32 and go from there
3(5z - 7) + 2(9z - 11) = 4(8z - 7) - 111
15z - 21 + 18z - 22 = 32z - 28 - 111
33z - 43 = 32z - 139
33z - 32z = -139 + 43
z = - 96
Answer:
Step-by-step explanation:
Data given and notation
represent the sample mean
represent the population standard deviation
sample size
represent the value that we want to test
t would represent the statistic (variable of interest)
represent the p value for the test (variable of interest)
Solution to the problem
We need to conduct a hypothesis in order to check if the true mean for the bushlels per acre is not 135, the system of hypothesis would be:
Null hypothesis:
Alternative hypothesis:
And the z statistic is given by:
And replacing we got:
Given: The side of a square is (3x - 6) units.
Note that (a + b)² = a² + 2ab + b².
Part A
The area of the square is
A = (3x - 6)(3x - 6)
= (3x)² + 2(3x)(-6) + (-6)²
= 9x² - 36x + 36
Part B
The area is a 2nd-degree polynomial, or a quadratic function, or parabola.
Part C
A 2nd-degree polynomial is of the form
f(x) = ax² + bx¹ + cx⁰ = ax² + bx + c
where a,b,c are constants (coefficients of the polynomial).
The area obtained in Part A has the coefficients
a = 9, b = -36, c = 36.
The polynomial is closed because it is completely defined by multiply and addition operations.
Answer:
A.> -2,2,3,4
Step-by-step explanation:
