Answer:
b. x^2 - 4x + 1
Step-by-step explanation:
Here is the long division.
x^2 - 4x + 1
-------------------------------
x - 3 | x^3 - 7x^2 + 13x - 3
x^3 - 3x^2
-----------------
-4x^2 + 13x
-4x^2 + 12x
------------------
x - 3
----------
0
Answer: b. x^2 - 4x + 1
The radius is approximately 2 93
2/7x +3=9
x=21
Let the unknown be x.
Take 3 to the other side so: 2/7 multiplied by x= 6
Divide 6 by 2/7 to get the answer;
Therefore x=21
Sub back into equation to check answer.
a and d
i hope it helps :)))))))))))