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3 years ago

Hello pls help I'm dumb thx it's pre calc

Mathematics

1 answer:

Bumek [7]3 years ago

3 0

(f-g)(x)=f(x)-g(x)=
$\frac{2x+6}{3x}-\frac{\sqrt{x}-8}{3x}=$
$\frac{2x+6-(\sqrt{x}-8)}{3x}=$
$\frac{2x+6-\sqrt{x}+8}{3x}=$
$\frac{2x-\sqrt{x}+14}{3x}$
answer is A

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Answer:

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4 years ago

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3 years ago

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3 years ago

K/5+14=13<br> what is the answer and how you got the answer.

abruzzese [7]

Answer:

$\frac{k}{5+14} = 13 : k = 247\\$

Step-by-step explanation:

$\frac{k}{5+14} = 13$

Multiply both sides by 19:

$\frac{19k}{5+14} = 13 * 19$

Simplify:

$k = 247$

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3 years ago

According to a study done by Otago University, the probability a randomly selected individual will not cover his or her mouth wh

nirvana33 [79]

Answer:

47.52% probability that among 10 randomly observed individuals fewer than 3 do not cover their mouth

Step-by-step explanation:

For each individual, there are only two possible outcomes. Either they cover their mouth when sneezing, or they do not. The probability of an individual covering their mouth when sneezing is independent of other individuals. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

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And p is the probability of X happening.

According to a study done by Otago University, the probability a randomly selected individual will not cover his or her mouth when sneezing is 0.267.

This means that $p = 0.267$