<span>Which of the following is not an acceptable form of proof
a. two-column proof
b. indirect proof
c. conjecture proof
d. flowchart proof
</span>....
. It would be an indirect proof that is not an acceptable form of proof. This is because this type proof is not used by any problem (B) is the answer
Answer:

Step-by-step explanation:
If train arrives between 2:00 to 3:00 (60min) and waits for 20 min and leaves, probability of finding train in that 60 min is
.
Probability of finding John is
can arrive any minute.
now the probability of finding both john and train is
*
=
.
This is compound Probablity Problem.
Answer:
x= -4
Step-by-step explanation:
Because both equations equal y, we can set them equal to each other and solve
y= 3/2x+3
y=-3
3/2x+3 = -3
To solve, we need to isolate the variable, x
Subtract 3 from both sides
3/2x= -6
Divide both sides by 3/2
x= -4
Annie = 3*sister -2
annie = 3*5-2=13