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2 years ago

Simplify. Solve as fast as possible.

Mathematics

1 answer:

Rom4ik [11]2 years ago

4 0

Answer:

-5y

Step-by-step explanation:

$\sqrt{y^2}$ = y if x > 0

-5 $\sqrt{y^2}$ = -5y

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0.5757… as a fraction

Radda [10]

Answer:

Your answer is $\frac{19}{33}$

Step-by-step explanation:

That is kind of hard. I have used the internet to help create that repeating decimal to a fraction and got that as your answer.

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A box contains 3 coins. One coin has 2 heads and the other two are fair. A coin is chosen at random from the box and flipped. If

Blababa [14]

Answer: Our required probability is $\dfrac{1}{2}$

Step-by-step explanation:

Since we have given that

Number of coins = 3

Number of coin has 2 heads = 1

Number of fair coins = 2

Probability of getting one of the coin among 3 = $\dfrac{1}{3}$

So, Probability of getting head from fair coin = $\dfrac{1}{2}$

Probability of getting head from baised coin = 1

Using "Bayes theorem" we will find the probability that it is the two headed coin is given by

$\dfrac{\dfrac{1}{3}\times 1}{\dfrac{1}{3}\times \dfrac{1}{2}+\dfrac{1}{3}\times \dfrac{1}{2}+\dfrac{1}{3}\times 1}\\\\=\dfrac{\dfrac{1}{3}}{\dfrac{1}{6}+\dfrac{1}{6}+\dfrac{1}{3}}\\\\=\dfrac{\dfrac{1}{3}}{\dfrac{2}{3}}\\\\=\dfrac{1}{2}$

Hence, our required probability is $\dfrac{1}{2}$

No, the answer is not $\dfrac{1}{3}$

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2 years ago

At which root does the graph of f(x)=(x+4)^6(x+7)^5 cross the x-axis ?

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Answer:

Step-by-step explanation:

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3 years ago

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Kendra types 72 words per minute. At this rate, how long will it take Kendra to complete a letter of 900 words?

riadik2000 [5.3K]

900 ÷ 72 = 12.5 minutes

Thus the correct answer is option A .

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The answer is X-2 ........

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