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Thepotemich [5.8K]
3 years ago
12

Please help!!!!!!! I need help

Mathematics
1 answer:
Jlenok [28]3 years ago
6 0

Answer:

12

Step-by-step explanation:

60% of 20 is 12.

I forgot proportions, I think they're making me relearn it this year.

By the way,

Eyyyy, fellow SEA student (:

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Alchen [17]

180 = 93 +3x +18

180 =111 +3x

3x = 180-111

3x = 69

x = 69/3

x = 23

8 0
3 years ago
BRAINLIEST GUARANTEED. Please Answer and show work. I'm not sure if it's correct though.
Sauron [17]

Answer:

They all look right but i'm not sure about the last one?

Step-by-step explanation:

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3 years ago
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based on the experimental probability about how many times will yosef draw a green marble if he draws a total of 75 marbles
Tema [17]
35 if you want to count purple but 12 if your from orange
5 0
2 years ago
State the degree of the polynomial. 2x3 - x4 + 5x2 - x
labwork [276]
The degree is 4 because it is the largest exponent out of all the variables.
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3 years ago
Find the area of each regular polygon. Round your answer to the nearest tenth if necessary.
tatuchka [14]

*I am assuming that the hexagons in all questions are regular and the triangle in (24) is equilateral*

(21)

Area of a Regular Hexagon: \frac{3\sqrt{3}}{2}(side)^{2} = \frac{3\sqrt{3}}{2}*(\frac{20\sqrt{3} }{3} )^{2} =200\sqrt{3} square units

(22)

Similar to (21)

Area = 216\sqrt{3} square units

(23)

For this case, we will have to consider the relation between the side and inradius of the hexagon. Since, a hexagon is basically a combination of six equilateral triangles, the inradius of the hexagon is basically the altitude of one of the six equilateral triangles. The relation between altitude of an equilateral triangle and its side is given by:

altitude=\frac{\sqrt{3}}{2}*side

side = \frac{36}{\sqrt{3}}

Hence, area of the hexagon will be: 648\sqrt{3} square units

(24)

Given is the inradius of an equilateral triangle.

Inradius = \frac{\sqrt{3}}{6}*side

Substituting the value of inradius and calculating the length of the side of the equilateral triangle:

Side = 16 units

Area of equilateral triangle = \frac{\sqrt{3}}{4}*(side)^{2} = \frac{\sqrt{3}}{4}*256 = 64\sqrt{3} square units

4 0
3 years ago
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