Express the terms of the following sequence by giving an explicit formula. A. u(n) = 4 + 6n, where n = 1, 2, 3, 4, . . . B. u(n) = 6 - 4n, where n = 1, 2, 3, 4, . . . C. u(n) = 4n, where n = 1, 2, 3, 4, . . . D. u(n) = n + 4, where n = 1, 2, 3, 4, . . .

use formula for the circle a=3.14

step-by-step explanation:

answer: i'm great at algebra

~coco

step-by-step explanation:

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18