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Vinvika [58]
2 years ago
5

Guy pls help me!!!!!

Mathematics
1 answer:
sergeinik [125]2 years ago
7 0

Answer:

x = 38

Step-by-step explanation:

180° - 142° = 38 °

....

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An architect wants an artistic flair to the house he is building, so he designs windows that are three fourths of a circle in sh
larisa86 [58]

The amount of rim needed for each window is 141.4 in

<h3>How to find the length of the outer rim?</h3>

Since the outer rim is the length of an arc, we use the formula for length of an arc of a circle.

<h3>What is an arc?</h3>

An arc is part of section of the circumference of a circle

<h3>What is the length of an arc?</h3>

So, length of arc, L = Ф/360 × 2πR where

  • Ф = central angle of arc and
  • R = radius of circle.

Gven that for the window rim

  • Ф = angle of the rim = 270° and
  • R = radius of the rim = 30 in

Substituting the values of the variables into the equation for L, we have

L = Ф/360 × 2πR

L = 270°/360° × 2π × 30 in

L = 3/4 × 2π × 30 in

L = 3/2 × π × 30 in

L = 3 × π × 15 in

L = 45π in

L = 141.37 in

L ≅ 141.4 in

So, the amount of rim needed for each window is 141.4 in

Learn more about length of an arc here:

brainly.com/question/8402454

#SPJ1

7 0
2 years ago
A flag pole is 12 ft high in the air. The Distance from the top of the pole to a point on the ground where Janae is standing is
Tema [17]

Janae is standing at a distance of 9 feet from the bottom of pole

<em><u>Solution:</u></em>

The flag pole, and the point where Janae is standing and the ground forms a right angled triangle

The figure is attached below

ABC is a right angled triangle

AB is the height of pole

AB = 12 feet

C is the point where Janae is standing

AC is the distance from the top of the pole to a point on the ground where Janae is standing

AC = 15 feet

BC is the distance between bottom of pole and the point on the ground where Janae is standing

We have to find BC

We can use pythagoras theorem for right angled triangle

Pythagorean theorem, states that the square of the length of the hypotenuse is equal to the sum of squares of the lengths of other two sides of the right-angled triangle.

By above definition for right angled angle triangle ABC,

AC^2 = AB^2+BC^2

Substituting the values we get,

15^2=12^2+BC^2\\\\225 = 144 + BC^2\\\\BC^2 = 225-144\\\\BC^2=81\\\\\text{Taking square root on both sides }\\\\BC = 9

Thus she is standing at a distance of 9 feet from the bottom of pole

8 0
3 years ago
Please help if you can. If possible please type how you got the answer so I can remember it next time I get a question like this
Gre4nikov [31]

Answer:

(2,3)

Step-by-step explanation:

I did this by using the equation that was given. y=x+1.

This mean that the starting point would be the coordinate (0,1) and the x is the slope, which means that from coordinate (0,1) I will go up one and one to the right until I intersected with coordinate (2,3).

8 0
3 years ago
Read 2 more answers
Find the area of the figure. Use 3.14 for A.
Masteriza [31]

Answer:

38.13 m^2

Step-by-step explanation:

the area of a triangle =b*h/2

b=base

h=height

area triangle=(4m*3m)/2=(12m^2)/2=6m^2

the area of a rectangle =b*h

b=base

h=height

area of a rectangle=6m*3m=18m^2

area of a semi circle=(pi*r^2)/2

r=radius

area of a semi circle==(3.14*(3m)^2)/2=14.13m^2

area of the figure=6m^2+18m^2+14.13m^2=38.13m^2

the answer is 38.13m^2

8 0
4 years ago
Nolan used 4/10 of the dimes I a bag to play a game at the arcade. Erica used 1/2 of the dimes in the bag. Who used less dimes?
melisa1 [442]
I say that Nolan used less
5 0
3 years ago
Read 2 more answers
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