Answer:
6 roots
Step-by-step explanation:
we know that
The number of roots is determined by the degree of the polynomial. They may be real or complex.
In this problem we have

The degree refers to the highest exponent of the polynomial
Since this is a 6th degree polynomial, it will have 6 roots
Answer:
Converting the equation
into completing the square method we get: 
Step-by-step explanation:
we are given quadratic equation: 
And we need to convert it into completing the square method.
Completing the square method is of form: 
Looking at the given equation 
We have a = x
then we have middle term 20x that can be written in form of 2ab So, we have a=x and b=? Multiplying 10 with 2 we get 20 so, we can say that b = 20
So, 20x in form of 2ab can be written as: 2(x)(10)
So, we need to add and subtract (10)^2 on both sides

So, converting the equation
into completing the square method we get: 
Answer:
The answer is D.
Step-by-step explanation:
Time = Distance / Speed
Distance = 12 *10 =120
Time = 120 / 12
Time = 10
Please correct if me if I'm wrong
Answer:

Step-by-step explanation:
2 more than 3 time mean 3n+2
"is atleast 8" means it can be 8 or more so c. is right answer