You have to use Pythagorean's theorem to find the missing side measure. 41^2=40^2 + w^2. 1681 = 1600 + w^2. 1681-1600=w^2. 81=w^2 and w = 9. That's an odd triangle, but accurate! Now use the cos definition of cos x = 9/41, and cos x = .2195. Now use the inverse function on your calculator in degree mode to see that the angle x is 77.3 degrees.
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Step-by-step explanation:
We do FOIL to solve this
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The Answer is A.
Step-by-step explanation:
I just took the test. ༼ つ ◕_◕ ༽つ
Presumably, the coin tosses are independent of one another, so
But if the coin flips are not independent, then we can't really say anything about this probability without any more information about how the flips are related...
