1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
marishachu [46]
3 years ago
12

31)

Mathematics
2 answers:
kifflom [539]3 years ago
5 0
It is 70 I believe you could check with an online calculator
lilavasa [31]3 years ago
5 0

Answer:

IT IS NOT 70!!!

Step-by-step explanation:

You might be interested in
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
Please*** I need help with this basic algebra problem.<br> FILL IN THE MISSING STEPS.
Oduvanchick [21]

Answer:

6(2x-3)= -9               given

12x-18= -9                distribute

12x-18+18= -9+18      addition

12x= 9                       division

x= 3/4                        solution

Step-by-step explanation:

5 0
2 years ago
There are n apples in a box; this is 3/7 of all the fruits in it. How many fruits are there in the box? (n=21)
Morgarella [4.7K]

Answer:

49

Step-by-step explanation:

n is 3/7 of total fruit

n=21 apples

Here they are just telling us that the apples make up a total of 3/7 percent of the total fruit in the box. So to find the total amount of fruit from this information we just simply take the n number of apples and divide that by the percent that it represents. So basically just this;

n=21 and (n)/(3/7)=total fruit

(21)/(3/7)=21*7/3=147/3=49 total fruit and 21apples make up (3/7)% of the total fruit in the box.

Hope this helped some. Any questions please feel free to ask. Thanks!

4 0
3 years ago
HELP! IS THIS PROPORTIONAL
MAXImum [283]

Answer:

Yes

Step-by-step explanation:

3 0
2 years ago
Can someone help me please
antoniya [11.8K]

Answer:

6

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • Write the point-slope form of the equation of the line that passes through the points (-8, 2) and (1, -4). Include your work in
    8·2 answers
  • For each store what is the ratio of cans to price
    11·1 answer
  • What is the midpoint of of VX, find the length of VX
    15·1 answer
  • Can anyone help me?<br><br>Find the exact variable.<br><br>Thank you so much!​
    14·1 answer
  • How do I do this? <br> Tell me how you got the answer
    12·1 answer
  • 50 Divided by 950 long division
    12·2 answers
  • Can someone help me plz
    10·1 answer
  • Please help ASAP !<br> Please help ASAP !
    13·2 answers
  • Identify the slope &amp; y-intercept for the following equation: y=-5x-3
    13·2 answers
  • Can someone please help me with this?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!