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Nata [24]
2 years ago
9

SOMEONE HELP ASAP PLEASE!

Mathematics
1 answer:
Tanzania [10]2 years ago
5 0
I hope this helps you

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The table shows Ava's checking account activity for several weeks. Ava's beginning balance was $685. What was her ending balance
Dafna11 [192]
B. Deposit means she added money to her account so you would add 175 and 180 to 685 (giving you 1040). Withdrawal means she took money out of her account so you would subtract 240, 140, and 350 from 1040 giving you your answer of $310 :)
8 0
3 years ago
Combine like terms in the expression below. <br><br><br>5c + 6 + 8c - 2<br><br>Plz help
Eva8 [605]
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3 years ago
What is the decimal form of -4 7/8
svetlana [45]
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4 0
2 years ago
Suppose you are repeating a classic study of starfish and their impact on the ecosystems of tide pools. Using historic data coll
Travka [436]

Answer:

The probability of the number of starfish dropping below 3 is 0.0463.

Step-by-step explanation:

Let X represent the number of starfish in the tide pool.

X follows a Poisson distribution with mean 6.4.

The formula for Poisson distribution is as follows.

P(X=x) = e^{-6.4} * [6.4^{x} / x!] when x = 0, 1, ...

P(X = x) = 0 otherwise

We need to find the probability that the number of starfish in the tide pool drops below 3.

Therefore, the required probability is:

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

P(X < 3) = e^{-6.4} + (e^{-6.4}*6.4) + (e^{-6.4}*6.4^{2}/2)

P(X < 3) = 0.00166 + 0.01063 + 0.03403

P (X < 3) = 0.0463

4 0
3 years ago
Help Please!!!!!<br><br> Evaluate the expression<br> when n = 4<br> 2n-7
Montano1993 [528]
2•4= 8 8-7= 1
The answer is 1
7 0
3 years ago
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