Answer:
option B
x = 1 + 3√6 or x = 1 - 3√6
Step-by-step explanation:
Given in the question an equation,
3(x-1)² - 162 = 0
rearrange the x terms to the left and constant to the right
3(x-1)² = 162
(x-1)² = 162/3
(x-1)² = 54
Take square root on both sides
√(x-1)² = √54
x - 1 = ±3√6
x = ±3√6 + 1
So we have two values for x
x = 3√6 + 1 OR x = -3√6 + 1
Answer:
The correct answer is 32.5
Let's use pi
irrational times rational=irrational
pi≈3.14
so double that is
2pi≈6.28
that's beteween 5 an d7
so an irrational number between 5 and 7 is 2pi
we could also do
remember that square roots of non-perfece square numbers are usually irraitonal
5²=25
7²=49
so an irrational number could be √c where 25<c<49
example, √40
some irrational numbers are 2π nd √40
Answer:
9) 30 years
10) line passing through points AB and BC are perpendicular
Step-by-step explanation:
9) p = 5t + 150
Current pop. (in thousands) is 150
Double pop. (in thousands) is 300
300 = 5t + 150
150 = 5t
t = 30
10) line passing through points AB and BC are perpendicular because their slopes are opposite and reciprocal
slope of AB = 3
slope of BC = -1/3
Answer:
the bring them to my house kidding its 118
Step-by-step explanation: