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3 years ago

Which equation is NOT written in slope-intercept form? A. y = –9x B. 2x – 5 = 2y + 14 C. y = 7x + 3 D. y = –3

Mathematics

2 answers:

tankabanditka [31]3 years ago

3 0

i think its B because its not arranged to give y=mx+c. if not its probably d

Svetach [21]3 years ago

3 0

Answer:

B. 2x – 5 = 2y + 14

Step-by-step explanation:

Slope intercept form is y = mx+b

A. y = –9x

This is in the form y = mx +b where m =2 and b is zero

B. 2x – 5 = 2y + 14

This is not in the form y = mx +b

C. y = 7x + 3

This is in the form y = mx +b where m =7 and b =3

D. y = –3

This is in the form y = mx +b where m =0 and b =-3

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In one city, the probability that a person will pass his or her driving test on the first attempt is 0.68. Eleven people are sel

kolezko [41]

Answer:

0.0308 = 3.08% probability that among these 11 people, the number passing the test is between 2 and 4 inclusive

Step-by-step explanation:

For each person, there are only two possible outcomes. Either they pass the test on their first attempt, or they do not. Each person 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.

In one city, the probability that a person will pass his or her driving test on the first attempt is 0.68.

This means that $p = 0.68$

Eleven people are selected at random from among those taking their driving test for the first time.

This means that $n = 11$

What is the probability that among these 11 people, the number passing the test is between 2 and 4 inclusive

This is

$P(2 \leq X \leq 4) = P(X = 2) + P(X = 3) + P(X = 4)$ .

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

$P(X = 2) = C_{11,2}.(0.68)^{2}.(0.32)^{9} = 0.0009$

$P(X = 3) = C_{11,3}.(0.68)^{3}.(0.32)^{8} = 0.0057$

$P(X = 4) = C_{11,4}.(0.68)^{4}.(0.32)^{7} = 0.0242$

$P(2 \leq X \leq 4) = P(X = 2) + P(X = 3) + P(X = 4) = 0.0009 + 0.0057 + 0.0242 = 0.0308$ .

0.0308 = 3.08% probability that among these 11 people, the number passing the test is between 2 and 4 inclusive

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3 years ago

Music that has melodies created based on the roll of dice or a random set of numbers is called

maria [59]

Music that has melodies created based on the roll of dice or a random set of numbers is called Aleatoric music .

<h3>Aleatoric music </h3>

Aleatoric music can bed defined as the type of music in which the musician or music artist makes some random selection or probability when creating a music.

Music melodies depend on the roll on dice which means that the composer tend to create or compose a music melody by simply rolling a dice.

Therefore Music that has melodies created based on the roll of dice or a random set of numbers is called Aleatoric music .

Learn more about Aleatoric music here:brainly.com/question/7184603

brainly.com/question/11049079

#SPJ1

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