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2 years ago

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Jason works at least 5 hours but not more than 10. He earns $15.00 per hour. The function f(t)=15t represents the money he earns

for working t hours. What is the practical range? Show all your work!

1 answer:

solniwko [45]2 years ago

5 0

Range (f(5),f(10))
^^^^^^^^^^^^^^^^^

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Answer:

The area of the Iris is 4 times greater.

Step-by-step explanation:

Firstly, we have to realize that we cannot solve this problem without knowing the radius of the iris. because from the information given, the radius of the iris could well be the size of the galaxy and contract from width of 4mm to 2mm and we wouldn't know!

The average radius of the iris is 6mm, so we take this value.

Now, initially the width of the iris is 4mm, that means the radius of the pupil is:

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Therefore it's area $A$ is:

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When the iris contracts to 2mm, the radius of the pupil becomes:

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Then it's area is $A$ :

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To find how many times greater this final area is than the initial area, we just divide it by the initial area:

$\frac{16\pi }{4\pi } =4$

This is 4 times greater than the initial area.

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10, 20 , 30, 45 has 5 as their greatest common factor

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vampirchik [111]

Answer:

Only the second and third statements are correct:

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Step-by-step explanation:

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We can go through each statement and examine its validity.

Statement 1)

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So, compared to the old volume, the new volume is quadrupled the original volume.

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Statement 2)

Using the previous reasonsing, Statement 2 is correct.

Statement 3)

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$V=\pi r^2(2h)=2\pi r^2h$

So, compared to the old volume, the new volume has been doubled.

Statement 3 is correct.

Statement 4)

Statement 4 is not correct using the previous reasonsing.

Statement 5)

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Step-by-step explanation:

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