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Tema [17]
2 years ago
10

Think for a situation or application in which proportion is evident/useful

Mathematics
1 answer:
Marina CMI [18]2 years ago
8 0

Answer:

Dieting (?) since proportions of the food can affect you're diet and it's also useful to stay on track.

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Each cone of the hourglass has a height of 12 millimeters. The total height of the sand within the top portion of the hourglass
Harman [31]

The solution would be like this for this specific problem:

Volume of a cylinder = pi * r^2 * h 

Volume of a cone = 1/3 * pi * r^2 * h 

Total Height = 47

Height of the cone = 12

Height of the cylinder = 35

If the top half is filled with sand, then:

volume (sand) = pi * 4^2 * 36

volume (cone) =  1/3 * pi * 4^2 * 12

Total volume = 1960.353816 cubic millimeters

353816 / (10 * pi) = 62.4 seconds.

It will take 62.4 seconds until all of the sand has dripped to the bottom of the hourglass.

7 0
3 years ago
What is the value of F(x)=3x-12forx=9?
GrogVix [38]

Answer:

15

Step-by-step explanation:

3(9)=27

27-12=15

7 0
3 years ago
It walks at a speed of
aleksklad [387]
It walks for 1.6 minutes or 1 min and 36 secs

6 0
3 years ago
Dante and Tania are both math tutors. The amount Dante charges for a session h hours long is represented by the function (h) =
Ksivusya [100]

Answer:

D

Step-by-step explanation:

5 0
3 years ago
What is the radius of the smallest circle that encloses an equilateral triangle with 12 inch sides? What is the radius of the la
melamori03 [73]
This is geometry through and through.  Plus a little trig thrown in for fun.  If you inscribe an equilateral triangle inside a circle and the triangle has side lengths of 12, you have part of what you need to use Pythagorean's Theorem to find the hypotenuse of the triangle which is also the radius of the circle. First, use the formula 360/3 to find that the central angle measure of each angle INSIDE a triangle is 120. So you have 3 triangles within the large one, each with a top angle of 120 and a base of 12. If you extract that one triangle and then split it in half, you have a right triangle with a base of 6. This is a 30-60-90 triangle and this is important so you can check your work. Now use the apothem formula for a right triangle as it relates to a side in an equilateral triangle, which is a = sqrt3/6 * s. Our values are a = sqrt3/6(12) which simplifies to 2sqrt3. That's our apothem. If you're familiar with a 30-60-0 triangle, you could check this to see it's correct. Now you have the base leg of 6 and the height of 2sqrt3, now use Pythagorean's Theorem to find the hypotenuse, which is also the radius of the circle. This was really a difficult one to explain.
6 0
3 years ago
Read 2 more answers
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