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VashaNatasha [74]
3 years ago
14

You ask an employee to string holiday lights around the perimeter of a circular room. The room is 30 feet in diameter. How many

feet of lights will she need?
Mathematics
1 answer:
Arturiano [62]3 years ago
3 0

Answer: 94.24 feet.


Step-by-step explanation:

1. To solve this exercise you must apply the formula for calculate the perimeter of a circle, which is shown below:

P=2r\pi

Where r is the radius of the circle.

2. You can calculate the radius of the circle by dividing the diameter by 2, as following:

r=\frac{30ft}{2}\\r=15ft

3. Substitute this value into the formula. Then, you obtain that the result is:

P=(2)(15ft)(\pi)\\P=94.24ft


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If x=3 substitute the value of x into the expression and simplify 3x+6
kotykmax [81]

Answer:

15

Step-by-step explanation:

Plug in 3 as x:

3x + 6

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7 0
2 years ago
Using the triangle below, find the ratio please need help answering for a quiz
Murrr4er [49]
<h3>sin22° = 5/4</h3><h3>tan22° = 3/√55</h3>

As we know that , sinA = opposite/hypotenuse & tanA = opposite/adjacent

So here we can find sin22° , because they already given the sides opposite & hypotenuse . And we can't find tann22° because they given the value of opposite but not given the value of adjacent side of the angle 22°

Now finding the adjacent side using

Pythagoras theorem :-

• Hypotenuse² = Base² + Height²

=> 40² = Base² + 15²

=> 1600 - 225 = Base²

=> Base² = 1375

=> Base = √1375

=> Base = 5√55

Now ,

  • tan22° = Opposite/Adjacent = 15/5√55 = 3/√55
  • sin22° = Opposite/hypotenuse = 15/40 = 5/4

8 0
3 years ago
What is the greatest commen factor of 30 and 54
seropon [69]
54. 30
^ ^
27 2. 10 3
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They only have 3 and two in common when you fully factor them. 3×2= 6
6 is the greatest common factor.
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See https://web2.0calc.com/questions/i-m-confused_17.

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