Answer:
{x,y} = {25/9,23/9}
Step-by-step explanation:
// Solve equation [2] for the variable x
[2] x = -4y + 13
// Plug this in for variable x in equation [1]
[1] 5•(-4y+13) + 2y = 19
[1] - 18y = -46
// Solve equation [1] for the variable y
[1] 18y = 46
[1] y = 23/9
// By now we know this much :
x = -4y+13
y = 23/9
// Use the y value to solve for x
If $26 represents the cost of the 5 used CDs, than your formula would be "26+4x" ,x being the amount of extra CDs you purchase.
The number CDs minus 5 is our x value, because the first 5 are the used CDs bundled into the $26 group.
26+4(6-5)
26+4(1)
26+4
30
6 CDs would cost $30
Answer:
Ray : Line NA, Line NB, Line AB
Vertex : Vertex N
Angle: Angle ANB
Parallel Lines: None
Coplanar Points: Points C, A, F, N, B
Collinear Points: Points A, N, B
Segment Addition Postulate: AN + NB = AB
Perpendicular Lines: None
Answer i pick is A. got to MULTIPLE BY 2 FOR X
Answer:
C = 24
Step-by-step explanation:
(x - 6)² - 12 = x² - 12x + c
(x - 6) (x - 6) -12 = x² - 12x + c
x(x - 6) - 6(x - 6) - 12 = x² - 12x + c
x² - 6x -6x + 36 - 12 = x² - 12x + c
x² - 12x +36 - 12 = x² - 12x + c
x² - 12x + 24 = x² - 12x + c
24 = c
