1/3x - 2/3 = -18
1/3x = -18 + 2/3
x = -54 + 2
x = -52 answer
Answer:
x² - 20 = 0
Using the quadratic formula
a = 1 b = 0 c = -20
So we have
Hope this helps you.
Answer:
No This is an unique triangle.
Step-by-step explanation:
Given that:
- Two side lengths of 6 inches
=> it is an isosceles triangle
According to the property of an isosceles triangle, the measurements of the two non-included angle are equal.
- In this situation, a non included angle of 60°
=> This is an equilateral triangle because the two non-included angles and include angle ( 180° - 2 *60°) are 60° .
This is an unique triangle.
0.3 is repeating as a mixed number.
We have that
t²<span> – 81
</span>
we know that
A difference of two perfect squares, <span> (A</span>²<span> - B</span>²)<span> </span><span>can be factored into </span><span> (A+B) • (A-B)
</span> let
A²-------> t²
B²-------> 9²
then
(t² – 9²)------->(t+9)*(t-9)
the answer is
(t+9)*(t-9)
