8) The 4x should have been subtracted from the 8x instead of beating added
9) combine the like terms which are -18x and 5x
Answer:
64/8
Step-by-step explanation: If a = 32 and b = 8, then the fraction turns into 2(32)/8.
2*32 is 64.
So, it turns into 64/8
You could also simplify it to 8/1, which is 8.
A(1) = - 3 ;
a(2) = a(1) + ( 2 - 1 )d ;
3 = -3 + d ;
d = 6 ;
a(3) = a(1) + ( 3 - 1)d;
9 = - 3 + 2d ;
12 = 2d ;
d = 6 ;
a(4) = a(1) + ( 4 - 1 )d ;
15 = -3 + 3d ;
18 = 3d ;
d = 6 ;
Then, a(n) = - 3 + ( n- 1 )6 ;
a(n) = - 3 + 6n - 6 ;
a(n) = 6n - 9 is an explicit functin rule for the sequence -3, 3, 9, 15, ...
180 I believe because all angles in a triangles will ALWAYS add up to 180
