Hi Harris
x²=6x-9
First thing we need to do is
subtract 6x-9 from the booth sides
x²-(6x-9)=6x-9-(6x-9)
x²-6x+9=0
Now we gonna factor the left side
(x-3)(x-3)=0
Set factor equal 0
x-3=0 or x-3=0
x=3
I hope that's help !
x² = 6x - 9, or x² - 6x + 9 = 0, or x² - 2*x*3 + 3² = 0, or (x-3)² = 0 => x₁ = x₂ = 3.
Green eyes.
4х – Зу = 18
Solve System Of Equations Using Substitutions
Answer:
x = 3
Step-by-step explanation:
4x - 3(-2) = 18
4x + 6 = 18
4x = 12
4x/4 = 12/4
x = 3
We're solving for x right?
B 0.5643
C 0.9105
D 0.0233
Answer:
And we want this probability:
And using the normal standard distribution or excel we got:
And the best option would be:
D 0.0233
Step-by-step explanation:
For this case we have the following parameters:
And we select a sample size of n=13. And we want to find this probability:
We can assume that the distribution for this case is normal and then we can use the z score formula given by:
And if we replace the data given we got:
And we want this probability:
And using the normal standard distribution or excel we got:
And the best option would be:
D 0.0233
help pl0x
Answer: