Branliest to correct answer please explain how you got your answer :)

Mathematics

2 answers:

Elodia [21]3 years ago

8 0

Answer:

2.12%

Step-by-step explanation: So in a 52 card deck, there are 13 hearts, so our probability of drawing a heart on the first try is 13/52, but this 3 decks, so you pretty much just add

xz_007 [3.2K]3 years ago

8 0

Answer:

1.56%

Step-by-step explanation:

there 52 cards in a deck and 13 of those are hearts. 13/52*13/52*13/52 That equals 2,197/140,608. Then divide both by 2,197 and you get 1/64. Turn it into a percent and it's 1.56%

13/52 is also 25% so you could do 25% * 25% * 25% and you get .015625 and move the decimal two places to turn it into a percent 01.5625%

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Let's work on the left side first. And remember that
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Substitute for the tangent:

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Now, work on the right side:

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Multiply that all out, using FOIL:

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So, on the right side, you could write [ sin²(a) ] .

Now look back about 9 lines, and compare that to the result we got for the left side .

They look quite similar. In fact, they're identical. And so the identity is proven.

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