I believe it’s C. Let me know.
The center-radius form is: (x−h)^2+(y−k)^2=r^2
Knowing this, all we need to do is square root the 64 to get 8 as your radius.
Answer:
There were 120 questions on the test.
Step-by-step explanation:
It is given that:
Number of questions answered = 54
Grade percent = 45%
Let,
x be the total number of questions
45% of x = 54

Dividing both sides by 0.45

Therefore,
There were 120 questions on the test.
A) nth term is n^2 + 1
b) nth term is (n - 1)^2