Answer: 6 inches.
Step-by-step explanation:
<h3>
Answer: Yes, those sides form a right triangle</h3>
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Work Shown:
a^2+b^2 = c^2
15^2+20^2 = 25^2
225+400 = 625
625 = 625
Since the last equation is true, this makes the first equation true for those a,b,c values. Therefore, by the pythagorean theorem converse, this is a right triangle.
Side note: c is always the longest side.
Answer:
Step-by-step explanation:
If it is a fair coin, he should expect heads about 1/2 the time.
1/2 of 30 = 15
He should expect 15 heads.
Answer:

Step-by-step explanation:
First, we have to write 8 + x, but since it's half of that we write it as a fraction with a 2 on the bottom to halve it.