If
3y + 1
2
= 5,

4x
3
= 8

and
z
3

+ 
z
4
= 2

If P(A) =
5
8

and P(A and B) =
1
4
,what is P(B)?

x  1  2  3  4 
y  3  7  11  15 
x  1  1  2  4 
y  3  7  11  15 
sin(C) =
AB
BC

cos(B) =
AB
BC

sin(C) =
AB
AC

cos(C) =
AC
BC

5
√32

 3
√2

x  y 
0  4 
6  5 
12  6 
24  7 
Simplify
x  6
x^{2}  x

÷
x^{2}  4x  12
3x^{2}  3x
