Polynomials can have double roots, in fact they're pretty common. if you get a reasonable zero it costs very little time to try it again for a double root. answer is the second choice
Answer:
Step-by-step explanation:
a^2+6^2 = 23^2
a^2 = 23^2 - 6^2
a^2 = 529 - 36
a^2 = 493
a = √493
a = 22,20
Conversion factor is the term that is to be multiplied to a variable when converting between units. The conversion factor is: 
Given that:

From standard unit of conversion:

So, we have:


Cross multiply

Divide both sides by 1kg

Rewrite as:

Hence, the conversion factor is: 
Read more about conversion factors at:
brainly.com/question/6988886
There are ⌊ 999 6 ⌋ − ⌊ 99 6 ⌋ numbers between 100 and 999 (i.e. three digit numbers) which are divisible by six.