3 years ago

Find the circumference of the circle given.

Mathematics

1 answer:

stiv31 [10]3 years ago

7 0

pls explain the question

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Each day, a young person should sleep 9 hours plus 1 4 hour for each year that the person is under 18 years of age. Assuming the

Andre45 [30]

Answer:

$y(x) = 9 + 0.25*(18 - x)$

Step-by-step explanation:

We have the following variables:

y: hours of sleep

x: age

Each day, a young person should sleep 9 hours

This means that y is 9 added to something

plus 1 4 hour for each year that the person is under 18 years of age.

For each year the person is under 18 years of age, she should sleep 1/4 = 0.25h on top of the 9 hours.

So the equation relating hours of sleep y and age x is:

$y(x) = 9 + 0.25*(18 - x)$

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Shkiper50 [21]

Cos(x) = BC/AB = 10.5/20 = 0.525 ⇒ x = 58.3°

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3 years ago

Five times the sum of a number and 6 equals 3

Sever21 [200]

Answer:

5x+6=3

Step-by-step explanation:

"A number" is a variable.

"Sum" is addition.

"Equals 3" is =3.

"and six" relates to "sum".

So when you put these together it would be 5x+6=3

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Step-by-step explanation:

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