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Whitepunk [10]
4 years ago
11

I need help with number 3

Mathematics
1 answer:
Lynna [10]4 years ago
6 0
The hexagon divides the circle into 6 parts. That means the angle projecting each side is: 360°÷ 6 = 60°

The area of a circle is: πr²
78.54 in² divided by pi is 25 making the radius = 5

I would then use SOH CAH TOA to solve for the side.. knowing the hypotenuse is the radius and the angle to split it into a right triangle is 30°

Sin(30) = s/5
5*Sin(30) = s

12*s = perimeter hexagon
(remember s is half the hexagon side)

12*5*Sin(30) = perimeter hexagon
30 inches  = perimeter

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Hello,
Please, see the attached file.
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4 0
3 years ago
G = {(5, 3), (2, 3), (6, 4)} Is G-1 a function and why?
galben [10]
To get G^-1 all we need to do is flip the points around Example for (5,3) make it (3,5)
Here are the points in inverse (3,5); (3,2); (4,6)
To tell if a group of point can be a function we need to 1st look at the x values.  If all the x values are different, then it is a function (the x's are not all different)
If there are x values that are the same, they MUST have the same y value.
look at the points (3,5) and (3,2) those have the same x but they go to different y values so it is not a function.

You can think about it like this.  Can you go to more than 1 place at the EXACT same time?  Obvious answer is no. Can you have multiple people go to the same room?  Sure that is possible.  Same with functions.  An x value can ONLY go to 1 y value, and many different x values can go to the same y value.
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3 years ago
How many roots does y=x*- 4x² + 3x have?
Julli [10]
The answer to your problem is 2
6 0
3 years ago
A school janitor has mopped <br> 1/3 of a classroom in 5 minutes. At what rate is he mopping?
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Step-by-step explanation:

7 0
3 years ago
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o.25 and .8

Step-by-step explanation:

it makes 0.2 so iys smaller than the rest

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