Answer:
Family A is C=t-7 T=c+7 Family B M=y+5 Y=M+5
Step-by-step explanation:
2 +4 +3 = 9 total balls
if they pick a white one first there would be 8 balls left
there are 2 blue ones so probability would be 2/8 which reduces to 1/4
2n/6- 5n/6=1/3
-3n/6= 1/3
n= -1
I suppose the curve is
.
Tangent lines to the curve have slope
; use the chain rule to get this in polar coordinates.

We have




The tangent line is horizontal when the slope is 0, which happens wherever the numerator vanishes:


(where
is any integer)
The tangent line is vertical when the slope is infinite or undefined, which happens when the denominator is 0:

