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3 years ago

I don't really get it plz help tell if it's a regular or not regular polygon

Mathematics

1 answer:

ladessa [460]3 years ago

4 0

So the definition of a regular polygon is that the sides are all equal, the interior angles are all equal, and the exterior angles are all equal.
Notice how with #s 3 and 4, the angles are all shown as equal, as well as their sides. However, #s 5 and 6 have different angles and sides, respectively.
Therefore 3 and 4 are regular, but 5 and 6 are irregular (not regular).

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Answer:

Step-by-step explanation:

2 is 40% of 5, so if we stay within this data, then she will win 40% of the next 20 games she plays. 40% of 20 is 8, so she will win 8 games out of 20

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3 years ago

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Find the approximate surface to area to volume ratio of a softball with a radius of 2inches

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4 years ago

What is the median of the following string of values? 51 22 17 28 98 4 24 83 9 76

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Step-by-step explanation:

4,9,17,22,24,28,51,76,83,98

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4 years ago

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Find the area of the region in the first quadrant bounded on the left by the y-axis, below by the line y equals one third x co

bonufazy [111]

Answer:

The bounded area is: $\frac{73}{6}\approx 12.17$

Step-by-step explanation:

Let's start by plotting the functions that enclose the area, so we can find how to practically use integration. Please see attached image where the area in question has been highlighted in light green. The important points that define where the integrations should be performed are also identified with dots in darker green color. These two important points are: (2, 6) and (3, 1)

So we need to perform two separate integrals and add the appropriate areas at the end. The first integral is that of the difference of function y=x+4 minus function y=(1/3)x , and this integral should go from x = 0 to x = 2 (see the bottom left image with the area in red:

$\int\limits^2_0 {x+4-\frac{x}{3} } \, dx =\int\limits^2_0 {\frac{2x}{3} +4} \, dx=\frac{4}{3} +8= \frac{28}{3}$

The next integral is that of the difference between $y=-x^2+10$ and the bottom line defined by: y = (1/3) x. This integration is in between x = 2 and x = 3 (see bottom right image with the area in red:

$\int\limits^3_2 {-x^2+10-\frac{x}{3} } \, dx =-9+30-\frac{3}{2} -(-\frac{8}{3} +20-\frac{2}{3} )=\frac{39}{2} -\frac{50}{3} =\frac{17}{6}$

Now we need to add the two areas found in order to get the total area:

$\frac{28}{3} +\frac{17}{6} =\frac{73}{6}\approx 12.17$

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4 years ago

Marilyn has 10 caramels, 12 mints, and 14 bars of dark chocolate in a bag. She picks three items from the bag without replacemen

MaRussiya [10]

Marilyn has 10 caramels, 12 mints, and 14 bars of dark chocolate in a bag
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2nd pick a mint: 11/35
3rd pick dark chocolate: 14/34 = 7/17

The exact probability that Marilyn picks a mint, then another mint, and finally a bar of dark chocolate is:

1/3 x 11/35 x 7/17 = 77 / 1785 = 11/255

Answer
11/255

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3 years ago

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