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Rasek [7]
3 years ago
12

Please help me if you can. Please also write how you got the answer thank you.

Mathematics
1 answer:
Monica [59]3 years ago
7 0

Answer:

or (depends on what your curriculum requires)

Step-by-step explanation:

This question is asking for how many shares this person can buy when they have $2000 and each share costs $237.68

So how many 237.68s go into 2000? Well 2000 divided by 237.68 is roughly 8.14. However, you can not buy .14 of a share, so you round down to 8 full shares.

Now its time to write the inequality. Lets assign "x" as the amount of shares the character can buy. We know that they can buy as much as 8 shares, but remember that they can actually buy less than that, so anything below 8 shares and 8 shares would be x\leq8, indicating that x, the number of shares, can be 8 and anything less than that.

If you want to be really accurate, you could also add that x\geq0, since you cant buy 0 amount of shares. So then your answer would be 0\leq x\leq 8, meaning that they can buy between 0 and 8 shares, including 0 and 8

Lmk if this helped, was incorrect, or if you wanted me to clarify anything :)

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Assume that the number of customers who arrive at a water ice stand follows the Poisson distribution with an average rate of 6.4
Nady [450]

Answer:

18.88% probability that three or four customers will arrive during the next 30 minutes

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.

Average rate of 6.4 per 30 minutes.

This means that \mu = 6.4

What is the probability that three or four customers will arrive during the next 30 minutes?

P = P(X = 3) + P(X = 4)

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

P(X = 3) = \frac{e^{-6.4}*(6.4)^{3}}{(3)!} = 0.0726

P(X = 4) = \frac{e^{-6.4}*(6.4)^{4}}{(4)!} = 0.1162

P = P(X = 3) + P(X = 4) = 0.0726 + 0.1162 = 0.1888

18.88% probability that three or four customers will arrive during the next 30 minutes

4 0
4 years ago
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Answer:

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Area=length\times width\\\\Area=(6x+5)\times (4x-9)\\\\Area=24x^2+20x-54x-45\\\\Area=24x^2-34x-45

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