Answer:

Step-by-step explanation:

Answer:
3 1/6
Step-by-step explanation:
4 1/2 - 1 1/3
4 3/6 - 1 2/6
3 1/6
Answer:
Descarte's rule says that the polynomial will have the number of zeroes equal to the number of times the sign off the coefficient changes.
For positive real roots:

The coefficient of polynomial is:
+9 -4 +10
There is 2 time sign in changing in 1st and 2nd term and then in 2nd and 3rd term.
So,there will be 2 positive real roots or less but even.
For negative real roots find P(-x)


So, coefficient of above polynomial is:
-9 +4 -10
There is 2 time sign in changing in 1st and 2nd term and then in 2nd and 3rd term.
So,there will be 2 negative real roots or less but even.
Answer:
No. Southwest flights did not arrive on time.
Step-by-step explanation:
Please see attachment