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3 years ago

If you flip three fair coins, what is the probability that you'll get at least two heads?

Mathematics

2 answers:

Naya [18.7K]3 years ago

7 0

3 coins have 3 heads and 3 tails. The chance of getting 2 heads is 3/6 or 1/2

crimeas [40]3 years ago

4 0

Answer:

the odds of it landing on heads two out of the 3 times is fair and ultimately and even 1/2 chance it will land on heads, as it has a 1/2 chance it will land on tails.

Hope this helps

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Step-by-step explanation:

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Step-by-step explanation:

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3 years ago

(ab^2 x -b^4a^3)^2 What is the answers

Umnica [9.8K]

Answer:

$\left(ab^2x-b^4a^3\right)^2:\quad a^2b^4x^2-2a^4b^6x+a^6b^8$

Step-by-step explanation:

Given the expression

$\left(ab^2\:x\:-b^4a^3\right)^2$

solving the expression

$\left(ab^2\:x\:-b^4a^3\right)^2$

$\mathrm{Apply\:Perfect\:Square\:Formula}:\quad \left(a-b\right)^2=a^2-2ab+b^2$

$a=ab^2x,\:\:b=b^4a^3$

so the expression becomes

$=\left(ab^2x\right)^2-2ab^2xb^4a^3+\left(b^4a^3\right)^2$

$=a^2b^4x^2-2a^4b^6x+a^6b^8$

Thus,

$\left(ab^2x-b^4a^3\right)^2:\quad a^2b^4x^2-2a^4b^6x+a^6b^8$

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2 years ago