42
1- 6+6+6+6+6+6+6
2-7+7+7+7+7+7
3- 7 TIMES 6
4- 6 TIMES 7
5-
Answer: B. 130
Step-by-step explanation:
answer is 11.78
Step-by-step explanation:
using this
angel/360=arc/circumference
Answer:
The series must be decreasing, and the limit as the n-th term goes to infinity should be 0.
Answer:
C, E
Step-by-step explanation:
Here, we want to change the equation of a circle from general form to standard form. This is done by making the leading coefficients 1, completing the squares, and then rewriting the equation in standard form.
The leading coefficients of the given equation are 2, so we first want to divide by 2. This gives ...
x² +y² -4x -6y +8 = 0
Subtracting 8 puts us in better position to complete the squares.
x² +y² -4x -6y = -8
Now, we can add the squares of half the coefficients of the linear terms.
(x² -4x +4) +(y² -6x +9) = -8 +13 . . . . . . matches C
And we can simplify this to the standard form equation:
(x -2)² +(y -3)² = 5 . . . . . matches E
