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ehidna [41]
2 years ago
14

Give a word problem for multiplying or dividing negative numbers

Mathematics
1 answer:
Nata [24]2 years ago
4 0
If you multiply -222•10 what is the correct answer?
You might be interested in
Ruby has a bird feeder which is visited by an average of 13 birds every 2 hours during daylight hours. What is the probability t
zalisa [80]

Answer:

62.93%

Step-by-step explanation:

We have to solve it by a Poisson distribution, where:

p (x = n) = e ^ (- l) * l ^ (x) / x!

Where he would come being the number of birds that there would be in 40 minutes, we know that in 2 hours, that is 120 minutes there are 13, therefore in 40 there would be:

l = 13 * 40/120

l = 4,333

Now, we have p (x> 3) and that is equal to:

p (x> 3) = 1 - p (x <= 3)

So, we calculate the probability from 0 to 3:

 p (x = 0) = 2.72 ^ (- 4.33) * 4.33 ^ (0) / 0! = 0.01313

p (x = 1) = 2.72 ^ (- 4.33) * 4.33 ^ (1) / 1! = 0.0568

p (x = 2) = 2.72 ^ (- 4.33) * 4.33 ^ (2) / 2! = 0.12310

p (x = 3) = 2.72 ^ (- 4.33) * 4.33 ^ (3) / 3! = 0.17767

If we add each one:

0.01313 + 0.0568 + 0.12310 + 0.17767 = 0.3707

replacing:

p (x> 3) = 1 - 0.3707

p (x> 3) = 0.6293

Which means that the probability is 62.93%

5 0
3 years ago
21 students in a dass wear spectacles. This is 60% of the total number of
wlad13 [49]

Answer:

There are 35 students in the class

Step-by-step explanation:

We would divide 21 by 60%

21/0.6 = 35 students.

7 0
3 years ago
Read 2 more answers
Easy work for extra points
melomori [17]
This ain’t easy for me
7 0
2 years ago
Read 2 more answers
What is 9x6+(5x7+4x3)63x8
irina [24]

Solution:

=9*6+(5*7+4*3)63*8\\=54+(35+12)504\\=54+47*504\\=54+23688\\=23742\\

Answer:

23742

<em>Hope this was helpful.</em>

8 0
3 years ago
Read 2 more answers
Plz help me with this !!
Lubov Fominskaja [6]

Answer:

u have to use the almighty formula

7 0
3 years ago
Read 2 more answers
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