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3 years ago

I NEED HELP SOMEONE PLEASE

Mathematics

2 answers:

Murljashka [212]3 years ago

8 0

Answer:

73.5 ft^2

<em>Note: ft^2 represents ft squared:)</em>

igor_vitrenko [27]3 years ago

5 0

Answer:

You need to do 9x7. the answer is 63

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What is 12+3? I really need hwelp on this

yaroslaw [1]

Answer:

Step-by-step explanation:

12+3=15

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4 years ago

Amy cut 32 ft of chain into pieces that were each ft long. How many of these did Amy have after cutting the chain?

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How many ft was each piece ? I need to know to help you

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4 years ago

Find the missing angle measurement

HACTEHA [7]

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3 years ago

The computer that controls a bank's automatic teller machine crashes a mean of 0.5 times per day. What is the probability that,

dexar [7]

Answer:

0.3216 = 32.16% probability that, in any seven-day week, the computer will crash less than 3 times

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

In which

x is the number of sucesses

e = 2.71828 is the Euler number

$\mu$ is the mean in the given time interval

Mean of 0.5

7-day week, so $\mu = 7*0.5 = 3.5$

What is the probability that, in any seven-day week, the computer will crash less than 3 times?

$P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2)$

In which

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

$P(X = 0) = \frac{e^{-3.5}*(3.5)^{0}}{(0)!} = 0.0302$

$P(X = 1) = \frac{e^{-3.5}*(3.5)^{1}}{(1)!} = 0.1057$

$P(X = 2) = \frac{e^{-3.5}*(3.5)^{2}}{(2)!} = 0.1850$

$P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2) = 0.0302 + 0.1057 + 0.1857 = 0.3216$

0.3216 = 32.16% probability that, in any seven-day week, the computer will crash less than 3 times

3 0

3 years ago

Clara has 9 pounds of apples. She needs 1 1/4 pounds to make one apple pie. If she sets aside 1.5 pounds of apples to make apple

Mamont248 [21]

She can make 6 pies.

Subtract 9-1.5=7.5

then 7.5/1.25= 6.04

7 0

3 years ago

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