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3 years ago

6

omplete the following sentence: You can verify the zeros of the function y = x2 + 6x - 7 by using a graph and finding where the

graph _______.

1 answer:

Svet_ta [14]3 years ago

6 0

Crosses the X-axis

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Based on a poll, among adults who regret getting tattoos, 16% say that they were too young when they got their tattoos. Assum

e-lub [12.9K]

Answer:

The problem is incomplete, but it is solved using a binomial distribution with $n = 8$ and $p = 0.16$

Step-by-step explanation:

For each adult who regret getting tattoos, there are only two possible outcomes. Either they say that they were too young, or they do not say this. The answer of an adult is independent of other adults, which means that the binomial probability distribution is used 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.

16% say that they were too young when they got their tattoos.

This means that $p = 0.16$

Eight adults who regret getting tattoos are randomly selected

This means that $n = 8$

Find the indicated probability.

The binomial distribution is used, with $p = 0.16, n = 8$ , that is:

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

$P(X = x) = C_{8,x}.(0.16)^{x}.(0.84)^{8-x}$

3 0

3 years ago

Please help and thx <br><br>I will mark brainlest <br><br><br>And don’t just guess <br><br>Answer #4

Effectus [21]

Answer:

4. D

Step-by-step explanation:

$y=-5$ is just a graph of a constant, meaning that it has a slope of 0 and does not change.

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3 years ago

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Jeans: $25, 45% markup (show work)

storchak [24]

Hello! There is a markup, so the price goes up. We add 1 to the percentage rate in decimal form, then we multiply that by the original price to go straight to the new price. 45% in decimal form is 0.45. 1 + 0.45 is 1.45. 25 * 1.45 is 36.25. There. The new price of the jeans is $36.25.

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3 years ago

Please help I’ll give brainliest

Tanzania [10]

Answer:

it answer would be 50% coz we take out percentage from 100.

Step-by-step explanation:

first add 17% and 33% it would be 50%

then subtract 50%from 100%

answer would be 50%

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3 years ago

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Find the sum 12x²+9x²

DIA [1.3K]

21x squared, just add the numbers together

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3 years ago

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