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]


Related Questions

Stephen was thinking of a number. Stephen adds 2, then divides by 7 to get an answer of 11. What was the original number?

Answers

Answer:

75

Step-by-step explanation:

Let x = number thought of

(x + 2) / 7 = 11

multiply both sides of the equation by 7

11 x 7 = x+ 2

collect like terms

77 - 2 = x

x = 75

NEED HELP PLEASE ASAP! please don’t waste my time i need this grade.

Answers

Hmm I think the answer is 95%
1 standard deviation is 13
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.
To find the range of scores that are 2 standard deviations from the mean take away and add 26 to the mean (133) which gives a range of 107-159. This is the correct answer.
2 standard deviations represents 95% of the data. That’s why I think the answer is 95%.

**Will mark brainliest**
Find the Volume of the Cylinder. Use 3.14 for pi. Round your answer to the nearest whole number.

Answers

Answer:

V≈67958.90

Step-by-step explanation:

Answer:

Step-by-step explanation:

[tex]V=\pi r^{2}h\\V=\pi *26^{2} *32[/tex]

i think im gonna buy human flesh off the darkweb today​

Answers

Answer:

i- alrighty then

Step-by-step explanation:

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

Answers

No idea
Step by step explanation

You randomly choose one of the tiles and flip the coin. Find the probability of the compound event. The probability of choosing a blue tile and tails

Answers

Answer:

2/7

Step-by-step explanation:

The probability of getting tails is 1/2 or 50%;

There are 7 tiles, 4 of them are blue; getting a blue tile has a 4/7 probability.

Multiply the fractions:

1/2*4/7= 4/14 or 2/7

Help me please ! Please

Answers

Answer:

maybe 36

Step-by-step explanation:

3 shirts 4 pants 3 shoes it maybe 3*4*3

Aimee lives 8/9 mile of the park. She has walked 3/5 of the way to the park. How far Aimee walked? is it multiplying or adding

Answers

Answer:

Yesterday,Annie walked 9/10 mile to her friend's house.Together,they walked 1/3 mile to the library.Which is the best estimate for how far Annie walked yesterday? a)about 1/2 mile b)about 1 mile c)about 1 1/2 miles d)about 2 miles ===== 0.9 + 0.333 = 1.233 miles

Step-by-step explanation:

PLEASE HELP 35 POINTS
Find the value of x in the triangle shown below.

Answers

Answer:

B sqrt(17)

Step-by-step explanation:

Using pythagoras theorem

The solution to the system is (3,4):
3x – 2y = 1
4y = 7+3x
Pizz help mee

Answers

Answer:

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

Step-by-step explanation:

The given equations are :

3x – 2y = 1 ....(1)

4y = 7+3x

4y-3x = 7 .....(2)

Put x = 3 and y = 4 in equation (1).

3(3) – 2(4) = 9-8

= 1

So, (3,4) is the solution of the equation (1).

Again put x = 3 and y = 4 in equation (2).

4(4)-3(3) = 16-9

= 7

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

Find the surface area of the triangular prisms below.

Answers

Surface are is the following
10.) 730 m^2
11.) 57.1 mm^2

Find a:c and a:b:c of the following
b) a:b = 4:5,b:C = 3:5​

Answers

Answer:

look at the picture i sent

Which of the following is equivalent to 3^4?
1. 12
2. 81
3. 7
4. 64

Answers

i think the answer is 12 because 3 times 4 is 12

Answer:

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:-

3 x 3 = 9

9 x 3 = 27

27 x 3 = 81

So, [tex]3^{4}[/tex] would be 81, Option 2.

Q23. Look at the image

Answers

Answer:

B. First term = 5, Common difference = -3

Step-by-step explanation:

The first term is f(1) = 8 - 3(1) = 8 - 3 = 5.

The common difference is the coefficient of  n.  Another way to see this is to compute the second term, f(2) = 8 - 3(2) = 8 - 6 = 2.  The second term is 3 less than the first.  The common difference is -3.

The sequence goes 5, 2, -1, -4, ...

What is 0.75 = 0.4 + 100

Answers

Answer:

0.75≠100.4

Step-by-step explanation:

Which kind of chart/graph should be used
to represent a turtle's movement over the
course of an hour?
A. bar graph
B. pie chart
C. line graph
D. pictograph

Answers

A line graph because it shows you the increasing and decreasing rates

Please help ASAP!! It’s due tomorrow please!!

Answers

Answer:

250 lifeguards

(P.S, i dunno if i got it right or not should be correct tho)

Step-by-step explanation:

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

There will be 9 lifeguards

.6 x 15 = 9

0.06 x 15 = 0.9

0.9 as a whole number = 9

Therefore There will be 9 lifeguards

find simple interest
Rs.6500 for 2years 3months at
6percent per annum

Answers

Question:

find simple interest

Rs.6500 for 2years 3months at

6percent per annum

Solution :

To find the simple interest , We'd use the following formula:-

P×R×T/100P= 6500R=62.25 (2 years+ 3 month)

.°.

S.I = 65×13.5

S.I = Rs.877.50

Hope it helps

-------☆゚.・。゚ᵴɒƙυᴚᴀ_ƨȶäᴎ❀

CAN SOMEONE DO THIS FOR ME I WOULD REALLY APPRECIATE IT

Answers

Answer:

ugh

Step-by-step explanation:

Which of the following is a geometric series?
a 6 + 13 + 20 + 27
b 7 + 21 + 35 + 45
c 14 + 24 + 28 + 35
d 2 + 14 + 98 + 686 ​

Answers

Answer:

Answer is D

Step-by-step explanation:

Got 100%

Answer:

D: 2+14+98+686

Step-by-step explanation:

Correct on edge quiz.

John is putting a fence around his garden that is shaped like a half circle and a rectangle.How much fencing will John need? Use for .32 ft39 ft46 ft57 ft

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.

To find - How much fencing will John need? Use  22 over 7 for Pi.

A. 32 ft

B. 39 ft

C. 46 ft

D. 57 ft

Solution -

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

Now,

Given that,

Length of Rectangle = 14 feet

Breadth of Rectangle = 7 feet

Now,

Sum of three sides of Rectangle = 14 + 14 + 7

                                                    = 35

Now,

Circumference of Semicircle = (1/2)[tex]\pi[/tex] D where D is the diameter

So,

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

                                                = 11

⇒Circumference of Semicircle = 11

So,

The perimeter of the garden = 35 + 11

                                                = 46 ft

The perimeter of the garden = 46 ft

If you conducted a survey on the distribution of M & M colors in 20 packages chosen at random, what type of graph would be best for displaying your results and why?

Answers

Answer:

A bar graph is the best graph to use

The circus admits children for $2 each and adults for $5 each. How many of each ticket were sold if 160 total tickets were sold for $476?

Answers

Basically you solve this by elimination or substitution
So you first make an equation where
c represents numbers of children tickets and ‘a’ represents adult tickets
a+c= 160
2a+ 5c=476


Multiply first equation by -2 to cancel out the a after addition
-2a-2c =-320
When you add the above equation with 2a +5c=476 you get 3c=156 which means that c=52 so the number of children tickets sold = 52
Now you substitute this answer to any of the equations and work out the value of a
a+52=160
a= 108

what is 35 x 345? Solve and I will give you money

Answers

Answer:

12075

Step-by-step explanation:

35 x 345 = 12075

Answer:

12075

Step-by-step explanation:

1. Jim's vegetable garden looks like this
quadrilateral.
T
2. Which kind of triangle has
no congruent sides?
A equilateral
B horizontal
c isosceles
D scalene
What type of quadrilateral is it?
A trapezoid
B square
c rhombus
D rectangle

Answers

Number 2 is D. Scalene

1. 6 times a number is 30, what is the number?

2. 5 less than twice a number is 19, what is the number

Answers

5 for the first one and 7 for the second hope this helps

i need help with this problem

Answers

Answer:

evaluate parenthesis first:

67/100(consider 67% out of 100) x 119 = 79.73

Answer:

79.73

Step-by-step explanation:

First, it would be finding 67% of 119

Then we find 10% = 11.9   and 1% = 1.19

The 11.9 multiplied by 6 to equal 71.4 and 1.19 multiplied by 7 to equal 8.33

Then add 71.4 and 8.33 to get the answer of 79.73.

What is the area 15mm 10mm

Answers

Answer:

15mm x 10mm = 150mm

Step-by-step explanation:

Simplify.
16 3/8 - 6 7/8

Answers

19/2 decimal for 9.5

find the missing side length of the right triangle below. Round your answer to the nearest tenth.

Answers

Answer:

24.4

Step-by-step explanation:

14² + 20² = c²

196 + 400 =  596

√596 = 24.4

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