What is the value of x? 93
87 78
72

72°

Explanation:

Given that line J and line K are parallel, we can safely assume that line m is the transversal for the following question. We can also remove line l so that we can focus on line m instead.

Using the rule of Alternate Exterior Angle theorem, x would equal to 72°.

Hello!

As the ball was replaced, the denominator in our probabilities will be the same. As the each had a 1/6 chance of getting the ball with the certain number, we just square the number as they both had the same probability.

1/6·1/6=1/36

There was a 1/36 chance of them selecting the same ball. This is also equivalent to about a 2.8% chance of this event occurring.

I hope this helps!