Step-by-step explanation below
Answer:
It would be expected to land on tails 45 times.
Step-by-step explanation:
If there is a 50% chance to land on tails, about half of the time it would land on heads.
Answer:
Use the Pythagorean theorem
Step-by-step explanation:
The pythagorean theorem is
where a is a height, b is a height, and c is the hypotenuse, which is the longest side of a triangle. For example, if the triangle has two side with lengths of three and four we would put them into the equation to get:

Simplify the equation to get:

Add 16 and 9 to get 25 and take the square root of both sides:

The sqrt of 25 is 5. Therefore, the length of the hypotenuse, or c, is 5.
Answer:
1,5
Step-by-step explanation: