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2 years ago

10

Which expression is equivalent to -14-6

1 answer:

mezya [45]2 years ago

5 0

Option B should be the correct answer

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A high school debate team of 4 is to be chosen from a class of 35. how many possible ways can the team be formed?

Burka [1]

Imagine there are 4 sits for fill for the debate team
we can fill the first sit in 35 different ways, second sit we only have 34 choices , third sit 33 and last sit 32 ways to possible fill it.
35·34·33·32=1,256,640 possible ways the team could be form

4 0

2 years ago

Let the probability of success on a Bernoulli trial be 0.26. a. In five Bernoulli trials, what is the probability that there wil

andreyandreev [35.5K]

Answer:

0.3898 = 38.98% probability that there will be 4 failures

Step-by-step explanation:

A sequence of Bernoulli trials forms the binomial probability distribution.

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.

Let the probability of success on a Bernoulli trial be 0.26.

This means that $p = 0.26$

a. In five Bernoulli trials, what is the probability that there will be 4 failures?

Five trials means that $n = 5$

4 failures, so 1 success, and we have to find P(X = 1).

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

$P(X = 1) = C_{5,1}.(0.26)^{1}.(0.74)^{4} = 0.3898$

0.3898 = 38.98% probability that there will be 4 failures

4 0

2 years ago

This high school stadium contains a track that surrounds a soccer field. The soccer field is 100 yards long and 70 yards

elena-14-01-66 [18.8K]

Answer:

do 70x70=4,900 than do 100 x100=10,000 than add them to gether and you get 10,4900

Step-by-step explanation:

theres 2 sides not just one

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2 years ago

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Missy and Randy started at opposite ends of Otter Creek Trial and hiked toward each. Missy walked at 2 miles per hour while Rand

andreyandreev [35.5K]

M=-3.5+2t, R=-3t when they meet M=R so

-3.5+2t=-3t

-3.5+5t=0

5t=3.5

t=0.7 hrs (42 minutes)

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2 years ago

Ben was framing a small herb garden for his mother. He

Leto [7]

1350 just multiply 30x45 and that the sender

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2 years ago

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