A fan oscillates 250* and can be felt from a distance of 4 feet away . To the nearest tenth what area of the room can feel the wind from the fan? Use 3.14 for pi .

Answers

Answer 1

Answer:

[tex]A=256.67ft^2[/tex]

Step-by-step explanation:

From the question we are told that:

Fan oscillates [tex]\theta=250[/tex]

Distance [tex]d=>Raduis\ r=4 feet[/tex]

Since

 [tex]250\textdegree =180\textdegree +70\textdegree[/tex]

Generally the equation for the area A is mathematically given by

 [tex]Area=Area\ of\ semi\ circle\ + area\ of\ 70\textdegree sector[/tex]

 [tex]A=A_{sm}+A_{70\textdegree}[/tex]

Where

 [tex]A_{sm}=\frac{1}{2} \pi r^2[/tex]

 [tex]A_{sm}=\frac{1}{2} 3.14 4^2[/tex]

 [tex]A_{sm}=25.12ft^2[/tex]

 [tex]A_{70\textdegree}=\frac{1}{2}r^2 \frac{70\textdegree}{360\textdegree}[/tex]

 [tex]A_{70\textdegree}=\frac{1}{2}*4^2* \frac{70\textdegree}{360\textdegree}[/tex]

 [tex]A_{70\textdegree}=1.55ft^2[/tex]

Therefore the area A is given as

 [tex]A=A_{sm}+A_{70\textdegree}[/tex]

 [tex]A=25.12ft^2+1.55ft^2[/tex]

 [tex]A=256.67ft^2[/tex]


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Answer:

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Answer:

79.73

Step-by-step explanation:

First, it would be finding 67% of 119

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Answers

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81, Option 2.

Step-by-step explanation:

[tex]3^{4}[/tex] means 3 x 3 x 3 x 3, that is 3 multiplied 4 times with itself.

Here's how to do it:-

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27 x 3 = 81

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Answer:

12075

Step-by-step explanation:

35 x 345 = 12075

Answer:

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Step-by-step explanation:

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Answers

Answer:

75

Step-by-step explanation:

Let x = number thought of

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Step-by-step explanation:

15 km divide 0.06 for every life guard. therefore, there are 250 lifeguards

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0.06 x 15 = 0.9

0.9 as a whole number = 9

Therefore There will be 9 lifeguards

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Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

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Answers

Question:

find simple interest

Rs.6500 for 2years 3months at

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-------☆゚.・。゚ᵴɒƙυᴚᴀ_ƨȶäᴎ❀

An object moves in simple harmonic motion with amplitude 15m and period 4 minutes. At time t=0 minutes, its displacement from rest is , and initially it moves in a negative direction. Give the equation modeling the displacement d as a function of time t

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Answer:

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Answers

Answer:

The perimeter of the garden = 46 ft

Step-by-step explanation:

The exact question is as follows :

Given - John is putting a fence around his garden that is shaped like a half circle and a rectangle.

A rectangle has a length of 14 feet and width of 7 feet. A semicircle with diameter of 7 feet is on top of the rectangle.

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The figure is as follows :

The perimeter of the garden is equal to sum three sides of the rectangle plus the circumference of a semicircle

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So,

Circumference of Semicircle = (1/2)(22/7)(7)

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Step-by-step explanation:

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T
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Answers

Answer:

(3,4) is the solution of both equations.

Step-by-step explanation:

The given equations are :

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Hmm I think the answer is 95%
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To find out the range of scores that fit 1 standard deviation from the mean, you would have to take away and add 13 from the mean (133) this gives a range of 120-146 which isn’t right because you’re looking for 107-159.
Next, look for 2 standard deviations from the mean which is just 13 x 2=26.
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Answers

Basically you solve this by elimination or substitution
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Multiply first equation by -2 to cancel out the a after addition
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a+52=160
a= 108
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