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2 years ago

Helppppppppppppp plssssssssss

Mathematics

1 answer:

alisha [4.7K]2 years ago

5 0

Answer:

Step-by-step explanation:

8/12

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Amelia's account balance is $16. If she uses her debit card to buy a $32

zimovet [89]

Answer:

-$16

Step-by-step explanation:

16-32=-16

5 0

3 years ago

Jake’s family is moving to a new home. They packed 22 boxes in \large 1\small \frac{5}{6} hours. What is the average number of b

den301095 [7]

Answer:

12 boxes per hour

Step-by-step explanation:

22 boxes in 1 5/6 hours

22 /11/6

22 *6/11=12

Hope this helps plz hit the crown :D

3 0

2 years ago

Read 2 more answers

what are the answers to this problem that makes cents from these this shouldn't really be easy for you guys

max2010maxim [7]

2,36,4,60 is what I got

5 0

3 years ago

Insanity offers birthday parties for a fee of $160 plus $4 per person. If you can spend no more than $200 on your party, what is

never [62]

Max amount of people who can attend is 10.

200-160=40
40 ÷4= 10

4 0

3 years ago

Grasshoppers are distributed at random in a large field according to a Poisson process with parameter a 5 2 per square yard. How

HACTEHA [7]

In this question, the Poisson distribution is used.

Poisson distribution:

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 interval.

Parameter of 5.2 per square yard:

This means that $\mu = 5.2r$ , in which r is the radius.

How large should the radius R of a circular sampling region be taken so that the probability of finding at least one in the region equals 0.99?

We want:

$P(X \geq 1) = 1 - P(X = 0) = 0.99$

Thus:

$P(X = 0) = 1 - 0.99 = 0.01$

We have that:

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

$P(X = 0) = \frac{e^{-5.2r}*(5.2r)^{0}}{(0)!} = e^{-5.2r}$

Then

$e^{-5.2r} = 0.01$

$\ln{e^{-5.2r}} = \ln{0.01}$

$-5.2r = \ln{0.01}$

$r = -\frac{\ln{0.01}}{5.2}$

$r = 0.89$

Thus, the radius should be of at least 0.89.

Another example of a Poisson distribution is found at brainly.com/question/24098004

3 0

3 years ago