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abruzzese [7]
3 years ago
13

Help please really needed

Mathematics
1 answer:
Y_Kistochka [10]3 years ago
5 0

Answer:

the answer is C hope this helps

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Where in the real-world is the Pascal Triangle used? Provide an example.
cupoosta [38]

Answer:

There are many colored pebbles to choose from out of the driveway. Karmin could not decide what one he wanted for his school project. So he took the best looking 4 from the driveway. 3 of them are now his backups.

You use this tequnic (sorry I can't spell) almost everyday. When ever you think about how much of something to take, you could be using this Pascal Triangle.

I hope this helped.

6 0
3 years ago
A committee of 15 members is voting on a proposal. Each member casts a yea or nay vote. On a random voting basis, what is the pr
Igoryamba

Answer:

0.006% probability that the final vote count is unanimous.

Step-by-step explanation:

For each person, there are only two possible outcomes. Either they vote yes, or they vote no. The probability of a person voting yes or no is independent of any other person. So we use the binomial probability distribution 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.

Random voting:

So 50% of voting yes, 50% no, so p = 0.5

15 members:

This means that n = 15

What is the probability that the final vote count is unanimous?

Either all vote no(P(X = 0)) or all vote yes(P(X = 15)). So

p = P(X = 0) + P(X = 15)

In which

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

P(X = 0) = C_{15,0}.(0.5)^{0}.(0.5)^{15} = 0.00003

P(X = 15) = C_{15,15}.(0.5)^{15}.(0.5)^{0} = 0.00003

So

p = P(X = 0) + P(X = 15) = 0.00003 + 0.00003 = 0.00006

0.006% probability that the final vote count is unanimous.

7 0
3 years ago
Express the set of real numbers between but not including 2 and 5 as follows.
Mashcka [7]
2 < x < 5

i think this is the answer
7 0
3 years ago
How do you write 2x^3 + 2x^2 - 3 as a trinomial?
NARA [144]

Answer: =

6x^2−5x−6

Step-by-step explanation:  Multiply each term in one expression times each term in the other, then simplify by combining like terms.  

Here are the like terms :  =(3x+2)(2x−3)=3x(2x+3x(−3)+2(2x)+2(−3)

                                               = 6x^2−9x+4x−6

                                                     =6x2−5x−6

7 0
3 years ago
What is the degree of <br>f (x) = -5x <br>it is a linear function?<br>What is the m and b?​
IRINA_888 [86]

Answer:

The degree is 1

It is a linear function

m = -5 and b = 0

Step-by-step explanation:

Here, we want to get the degree of the equation

As we can see, it is a linear function with the highest power of as 1

That means it is of degree 1

Comparing with the general form;

y = mx + b

m = -5

b = 0

3 0
3 years ago
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