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wlad13 [49]
2 years ago
13

What kind of shape is this ?

Mathematics
2 answers:
Lemur [1.5K]2 years ago
8 0
Prism because it is a three dimensional shape
Stells [14]2 years ago
5 0

Answer:

prism

Step-by-step explanation:

when all the sides are joined, it will reveal the shape to become a prism.

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A child is observing squirrels in the park and notices that some are black and some are gray. For the next five squirrels she se
slavikrds [6]

Answer:

20.48% probability that she will see exactly two black squirrels out of the five

Step-by-step explanation:

For each squirrel, there are only two possible outcomes. Either it is black, or it is not. The probability of a squirrel being black is independent of other squirrels. So we use the binomial probability distribition to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

20% of squirrels are black.

This means that p = 0.2

What is the probability that she will see exactly two black squirrels out of the five?

This is P(X = 2) when n = 5. So

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 2) = C_{5,2}.(0.2)^{2}.(0.8)^{3} = 0.2048

20.48% probability that she will see exactly two black squirrels out of the five

4 0
3 years ago
It takes billy 6 minutes to walk 1.5 km. How long will it take billy to walk 9km?
Pepsi [2]

Answer:

It will take Billy 36 minutes to walk 9km.

7 0
3 years ago
Read 2 more answers
What fraction is bigger? 3/7 or 5/12. let me know the method.
Dominik [7]

Answer:

3/7

Step-by-step explanation:

3/7 5/12

36/84   35/84

8 0
3 years ago
Find the value of the following:<br><br> a) 25 - 7.36<br><br> b) 8.65 + 4.23 - 3.5
Ede4ka [16]

Answer:

a 25-7.36

=17.64

b 8.65+4.23-3.5

=12.88-3.5

=9.38

5 0
1 year ago
Read 2 more answers
Can i get some help with this?
liberstina [14]

Answer:

Look at the image, pls give brainliest!

Step-by-step explanation:

7 0
2 years ago
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