Can anyone pls help me in dis

Mathematics

1 answer:

nikklg [1K]4 years ago

7 0

Answer:

10.6 cm to the nearest tenth.

Step-by-step explanation:

If we let one side = x. So as each side of a square are equal, and using Pythagoras we have:

x^2 + x^2 = 15^2

2x^2 = 225

x^2 = 112.5

x = √112.5

x = 10.61.

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Please help me these right now.

Vladimir79 [104]

49. From 3 coin tosses, there are 8 possible outcomes:

... TTT, TTH, THT, THH, HTT, HTH, HHT, HHH

All but the first have at least one head, so 7/8 of the possibilities have at least one head. That's 87.5% (not among your choices).

Likewise, all but the last listed outcome have at least one tail. The problem is symmetrical that way when the coin is fair. 87.5% of outcomes have at least one tail.

___

Perhaps you can tell I read your question as having two parts. If your question is the probability of getting at least one head AND at least one tail, you can see that condition includes 6 of the 8 outcomes, or 75%, matching selection d.

50. See for yourself: the calculator says 66.82%. Your best choice is selection d.