Answer:
= 28/3
Step-by-step explanation:
Let's solve your equation step-by-step.
x(3)−(8)(2)−9x+72=0
Step 1: Simplify both sides of the equation.
x(3)−(8)(2)−9x+72=0
3x+−16+−9x+72=0
(3x+−9x)+(−16+72)=0(Combine Like Terms)
−6x+56=0
−6x+56=0
Step 2: Subtract 56 from both sides.
−6x+56−56=0−56
−6x=−56
Step 3: Divide both sides by -6.
−6x
−6
=
−56
−6
x=
28
3
Answer:
x=
28
3
A = 8B
A + B = 180
8B + B = 180
9B = 180
B = 20
A = 8 * 20 = 160
Answer:
e) The mean of the sampling distribution of sample mean is always the same as that of X, the distribution from which the sample is taken.
Step-by-step explanation:
The central limit theorem states that
"Given a population with a finite mean μ and a finite non-zero variance σ2, the sampling distribution of the mean approaches a normal distribution with a mean of μ and a variance of σ2/N as N, the sample size, increases."
This means that as the sample size increases, the sample mean of the sampling distribution of means approaches the population mean. This does not state that the sample mean will always be the same as the population mean.
If its from one test it doesnt always affect your grades but if you are continuously getting 28% then it will badly affect your grades
Answer:
<em>a</em><em>}</em><em>4</em><em>/</em><em>3</em>
<em>b</em><em>}</em>
<em>c</em><em>}</em><em>-</em><em>1</em><em>/</em><em>4</em>
Step-by-step explanation:
a}4-c/4-(2+b)
putting the values of b and c n its place
4-(-4)/4-(2-4)
4+4/4-(-2)
8/4+2
8/6
4/3 or 1.33
b}IDK SORRY
c} y-x+5+y/4
-1-4+5-1/4
-6+5/4
-1/4
