Answer:

Step-by-step explanation:
We are given the two functions:

And we want to find:

Recall that this is equivalent to:

Substitute. Hence:

Expand if desired:

Answer:
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Answer:For every right triangle, the circumcenter is always the midpoint of the hypotenuse. All four points of concurrency can themselves be concurrent! Only with an equilateral triangle will the centroid, circumcenter, incenter and orthocenter always be the same point!
Step-by-step explanation:
315 is about 320 which is divisible by 8 320/8 is 40
To get 76% of 75 you turn the fraction to a decimal, then multiply it to the number. 76% as a decimal us 0.76 and 0.76 * 75 = 57
So, Ciaran got 57 out of 75 questions right.