4, because f(x) is basically like you are substituting in what ever value is given for x.
Answer:
Step-by-step explanation:
As square root value is written with both + and - signs
In Given case:
A polynomial has root 
= ±3.316
Also
= ±3.316
Hence is also root of the polynomial!
Nine more than a variable "a".
The square root of 39 = 6.2445
Comparing to the 6.51326, it has a difference of 0.268262. Therefore, 6.51326 is greater than square root of 39.
Answer:
-8.45
Step-by-step explanation:
Look at -10 and 0 on the number line. I used a ruler to help me, and found that A and B were about 1 - 1.3 cm apart. I looked at the options and found that -8.45 was the closest.
However, another way you could of worked this out would be to look at your options and eliminate the ones you know don’t work. Then look at your options available and work it out from there.
