Which equation describes the nth term of the arithmetic sequence -12,-14, -16,-18,...?

a. An=-2n-10
b. An-12-2n
c. An=10n-2
d. An=-2n+10

PLS HELL

hi there!

the answer to this question is d: 35

step-by-step explanation:

5 to the power of 2 is 25

2 multiplied by 5 is 10

then you add the 2 numbers and you get 35

make sure you have version 2.50

try looking in the very back of the book : )

step-by-step explanation:

you can download it here

center (1,3) with radius 6

step-by-step explanation:

we must complete the square to find the center and radius of the circle.

first make sure the x and y squared terms have 1 as their coefficients. we also make sure x and y terms together.

we now create space between the x and y terms with parenthesis.

we complete the square by taking the middle terms -2x and the -6y - divide each and square them.

we add the squares to both sides.

simplify.

and write the quadratics in factored form.

the center is (h,k) or (1,3). the radius is the square root of 36 which is 6.