Mathematics Middle School

The diagram shows a track composed of a rectangle with a semicircle on each end. The area of the rectangle is 6,600 square meters. What is the perimeter of the​ track? Use 3.14 for pi

The Diagram Shows A Track Composed Of A Rectangle With A Semicircle On Each End. The Area Of The Rectangle

Answers

Answer 1

Answer:

The perimeter of the track is the two circumferences of the semicircles (when combined, they form one circle, so we can just find the circumference of the circle) added to the lengths of the rectangle (160 meters).

To find the circumference of the circle, we need to know the diameter.

Circumference of a circle: dπ or 2rπ, where d represents diameter and r represents radius

The diameter of the circle happens to be the same as the width of the rectangle. We know that the area of a rectangle is found by multiplying its length by its width. We know that the area is 14400 and that its length is 160.

Width: area divided by length

14400160=90

The diameter of the circle and the width of the rectangle is 90 meters.

Circumference:

90⋅π=90π→ If you are using an approximation such as 3.14 for π, multiply that by 90

Add 160⋅2 to the circumference since the lengths of the rectangle are also part of the perimeter.

160⋅2=320

90π+320

Answer link

Related Questions

PLEASE HURRY ILL MARK BRAINLIEST
Which of the following rules is true for all
values in the input-output table below?
Inpur Output
.
TO
20
A. x + 1 y
B. x + 2 - y
C. 2xy
D. 3x - 2y

Answers

Answer:

c

Step-by-step explanation:

Write out the algebraic expression given in each written expression.
16 subtracted from the sum of 48 and bequals 129
A ( 16 - b) + 48 = 129
B (48 + b ) - 16 = 129
C.16 - (48 + b ) = 129
D 48 +(b - 16 ) = 129

Answers


B (48 + b ) -16 = 129
the answer is B (49 + b) - 16 = 129

middle school mathematics....

Answers

Answer:

Step-by-step explanation:

Im sure your done with this and don't need anyone to answer this anymore

Water flows back and forth between a small and large tank. When water is moving into a tank the flow rate is positive, and when water is moving from a tank the flow rate is negative. The large tank begins with 300 gallons of water, and the small tank begins with 200 gallons of water. After a period of 5 minutes, the large tank has the same amount of water as the small tank. Which statement describes the flow rate?

Answers

I really need points sorry but it’s a

What 138738262837187173628182636648282727 divided by 718172628382728473e + 7282828368199182727374992826272 divided by 6378191826463 plus -123415192 + 17181827291?

Answers

Answer:

Step-by-step explanation:

1.2129006e+18

What is the measure of each angle in a hexagon if the lengths of all six sides are equal?

Answers

degrees = (# of sides – 2) * 180. Then degrees = (6 – 2) * 180 = 720 degrees. Each angle is 720/6 = 120 degrees. I hope it helps

find the volume of the cylinder using the given formula

Answers

Answer:

B. 1469.52 cubic units

Step-by-step explanation:

6 squared is 36, 36 x 13 is 46s, 468 x 3.14(pie) is 1469.52

Can sum1 give me the right answer pls like seriously

Answers

The person above me is incorrect.
ANSWER: -77 5/8

HELP PLSS (NO LINKS)

Answers

61/8 or 7 and 5/8. I would try either one

Answer:

I believe that it is 8

Step-by-step explanation: You add the lines in between them and then you do the same then you add them all together to get your answer.

Will BAINLIST!!!!
The circle with center C was used as a model for a hot tub. The length of is 2 m. What is the circumference of the hot tub?

Answers

Answer:

6.283 m

Step-by-step explanation:

2m is the length so half is the radius

the radius is 1

so if c=2[tex]\pi[/tex]1

and [tex]\pi[/tex] 3.14159

u get 6.283

2(3.14159) x 1 = 6.283

brainliest pls i was first

I need help with all of it pls

Answers

A. (For Claire’s gross income) is 3,725.

B. (For Tina’s net income) is 2,100.

D. (For Jie’s net income) is 48.6, or 243/5.

During the last few months, Maria has seen deer in her backyard on 13 days and no deer on 52 days. What is the approximate probability that she will see deer in her yard tomorrow?
A) 0.25
B)1/5
C) 33.3 %
D) 2/3

Answers

The answer is going to be d

Answer:A

Step-by-step explanation:

(95+78+89+98)÷4=90 written in a inequality equation

Answers

Answer:

90 ≥ (95+78+89+98) ÷ 4

Step-by-step explanation:

It shows that to get 90, it has to be greater than or equal to (95+78+89+98) ÷ 4

4x4 Thhhhhhaaannkkkk uuuuu

Answers

Answer:

16

Step-by-step explanation:

4+4+4+4

     or

8+8

Answer:

16

Step-by-step explanation:

The level of water in a tank decreased steadily for a few weeks and then increased greatly for about a week. After this increase, the water level in the tank remained at its greatest level, for many weeks which of the graphs below could represent the water level In the tank during this time.

Answers

Answer:

D

Step-by-step explanation:

I hope this helps

PLZ PLZ PLZ PLZ PLZ PLZ PLZ PLZ PLZ PLZ PLZ HELP I WILL BE POSTING A LOT OF THESE

Answers

Answer:

i cant see the pic either

Step-by-step explanation:

HELP ASAP ASAP!! NO LINKS PLEASEEEE OR U WILL BE REPORTED, I NEED AN ANSWER WITH EXPLANATION AND WORK SHOWN OR EXPLAINED, WILL GIVE BRAINIEST!!

Answers

graph these numbers and then connect at the end.


3. y (6,-3). x (2,-4) z (5,-7)

4. U (5,4). T (5,1) S (1,0) V(-3,4)

i hope these help.

If angle A measures 40° what is the measure of angle B?

Answers

the cap is at 360*

so you can find the difference

360 - 40.

and the solution should get you the answer which is 320*
The answer would be 320 degree angle

PLEASE ANWSER FAST!!

Answers

What am I answering exactly?

!!TSAF RESWNA ESAELP

plsss help (will report if scam)

Answers

Answer:

9.) I 5/14 * 4/13 10.) H 45

Step-by-step explanation:

For 9.) the probability the first time to get a red marble is 5/14 because there are 5 red marbles and 14 total marbles. The probability the second time she picks, if a green one was chosen, one is 4/13 because one green marble needs to be missing and because one marble is missing 14-1=13 so there are 13 total marbles. You would multiply the two probability (5/14 and 4/13) to find the probability of drawing two green marbles in a row

For 10.) I found that 2/5= .4 and 5/8= .625 so I multiplied both fractions by 200

.4 * 200= 80

.625 * 200= 125

These are the numbers of games both people won

Subtract the two and you get 125-80= 45 which is how many more games Tyrell would win.

HELP FAST


Simplify:

6s – (3s – 2)
A. 3s + 2
B. 3s – 2
C. -3s – 2
D. -3s + 2

Answers

Answer:

3s + 2

Step-by-step explanation:

Answer:

Hi! The answer to your question is A. 3s+2

Step-by-step explanation:

☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆

☆Brainliest is greatly appreciated!☆

Hope this helps!!

- Brooklynn Deka

Find the surface area of the prism or pyramid. Round to the nearest hundredth if necessary.

Answers

Answer:

sorry if this is wrong

Step-by-step explanation:

SA=1 square + 4 triangles

SA (square)=9

SA (triangles)=3(bh/2)

SA=4(3(6)/2)

SA=4(9)

SA=36

36+9=45

The correct answer is that the surface area is 45

Circumference (Level 2)

Answers

Answer:

radius r = 2.38732415 m

diameter d = 4.77464829 m

circumference C = 15 m

area A = 17.9049311 m2

A triangle has side lengths 7 and 4. How long is the third side, c?

Answers

Answer:

5,7, or 9

Step-by-step explanation:

a,b and c are the sides of a triangle if it satisfies:

a<b+c  , b<a+c and c<b+a

Here, a=4 and b=7

We have to find c

i.e. all those c which satisfies:

4<7+c , 7<4+c and c<4+7=11

Answer:

9

Step-by-step explanation:

Help ASAP, please!!! >`<


The top of the Washington Monument is a triangular pyramid with a triangular base. Each triangular face is 24 feet high with a base that is 16 feet wide. The lateral faces of the pyramid are covered with white marble. About how many square feet of marble cover the lateral faces of the pyramid

Answers

Answer:

3944ft^2

Step-by-step explanation:

o 4 triangular faces of the pyramid will have total area

= 4 ×12 × base × height = 4 × 12 × 34 × 58ft^2 = 3944ft^2

So 3944ft^2 of marble cover the faces of the pyramid.

ಠ_ಠ plss help(will report if a scam)

Answers

Answer:

.

Step-by-step explanation:

21 POINTS!
Jeff had $20. He spent 3/8 of his money on lunch. How much money does jeff have left?

Answers

Answer:

$12.50

Step-by-step explanation:

3/8 x 20/1 = 7.5

20 - 7.5 = 12.50

Jeff has $12.50 left after spending 3/8 of his money on lunch.

What is Equation?

Two or more expressions with an Equal sign is called as Equation.

Given that Jeff had $20.

Jeff spent 3/8 of his money on lunch.

To find the money he left after spending on lunch we get by subtracting three by eight from one.

1 - 3/8

=8-3/8

= 5/8 of his money left.

To find out how much money Jeff has left, we can multiply the remaining fraction by his initial amount of money:

Intitial amount is 20

The money left is 5/8.

Multiply five by eight with twenty.

Money left = (5/8) × $20

Five divided by eight times of twenty.

=100/8

When hundred is divided by eight we get twelve point five.

= $12.50

Therefore, Jeff has $12.50 left after spending 3/8 of his money on lunch.

To learn more on Equation:

https://brainly.com/question/10413253

#SPJ2

one soccer team played 45 games throughout their entire season if this soccer team won 35 of those games than what percentage of their games did they win?

Answers

they won 77% because you do 35/45 and get .777
I think the answer is 77%

Which types of graphs are best used when representing individual data points rather than categories?

line graph
bar graph
line plot
stem-and-leaf plot

Answers

I’m not sure but this is what i would use,
answer:stem-and-leaf plot!

A rectangle measures 2 4/5 inches by 2 4/5 inches. What is its area? Answer in a mixed number. WILL MARK BRAINLIEST

Answers

7 21/25

2 4/5 x 2 4/5 = 7 21/25

Other Questions
3. Maria is in charge of consolidating the names of the participants of the two-day virtualseminar. She wants to arrange the names alphabetically using MS Excel. Which of the following isthe correct sequence of steps in sorting text?1. Click the Sort & Filter command. A drop down menu appears.11. Choose Sort A to Z.III. Select the cell range needed to be sorted.IV. Go to the Editing Styles group of Home Tab.A. I, II, III and IVC. III, IV, I and IB. II, II, IV and ID. IV, l, ll and I Please answer quickly!! There may be be more than one answer!! Five of every six gifts were wrapped in blue paper. If there are 25 gifts wrapped in blue paper, how many gifts are there altogether? A rectangular prism has a length of 9 in., a width of 4 in., and a height of 112 in.The prism is filled with cubes that have edge lengths of 12 in.How many cubes are needed to fill the rectangular prism? NEED HELP ASAPComplete the next equation to show the relationship between the number of ounces of oil and vinegar in the recipe. PLEASE HELP!!!!(this is science btw)What is a physical change? Give 2 examples.What is a chemical change? Give 2 examples. A developer wants to divide an 84 acre parcel of land into lots in the ratio 6:2:4. How many acres are each land division. WILL AWARD BRAINLIEST. Stress is our bodies' biological reaction to danger or threat. Early humans developed astress response that helped them get out of harmful situations. When the brain sensesdanger, it releases stress hormones like adrenaline and cortisol. These hormones causechanges in the body to prepare us for "fight or flightto tackle the problem with extrastrength, or run away fast. For example, if your ancestor spotted a dangerous animal, shemay have felt her stomach sinking as her blood left her digestive system and went to her legsso she could run faster. She would breathe faster to get more oxygen for running. Extrasweat would help cool her down as she ran. Her pupils would get bigger to help her see inthe darkWhich of these is not a physical stress response?ABlood redirects to the legs to increase running speed and strength.B.Breathing becomes faster to get more oxygen into the lungs.Pupils dilate to let in more light.DSweat production decreases to create less resistance when running. WILL GIVE BRAINILEST!! 1. Al and Viola Speer were granted an $80,000 mortgage.At the closing, they will have to pay the closings costsshown plus real estate taxes of $1,230. What are thetotal costs? 4. The Maya *A)had no major citiesB)invented the wheelC)lived in South AmericaD)sought captives in war to later offer their lives to the godsNEED THIS ASAP Which of the following is equal to the expression listed below? 70+30A.(10x7)(10x3)B.10+(7x3)C.(10+7)(10+3)D.10(7+3) A triangle has a slant of 8yd, a height of 6.5yd, and a base of 4yd. What is its area?A. 6.5yd^2B. 13yd^2C. 26yd^2D. 52yd^2 Which of the following would not be a good supporting sentence for anillustration paragraph with the following topic sentence?I have a long fuse, but when I lose my temper, I really loseit.O A. When I saw the kids outside egging my house for the fifth timethat week, I lost control.B. Controlling your temper is probably a good thing to learn.C. Yesterday, I really lost it.D. I stormed out into the yard with my own eggs and started hurlingthem at the intruders. At his favorite restaurant, Dylan orders a soda with his dinner. The ice in his drink has a mass of 6 g and a volume of 20 cm3. What is the density of the ice? Explain the steps you took to solve this problem. Write any two irrational numbers between 0.7575496 and 0.784218972. Whats the thing in the picture? Its a part of a computer. this is reading misplaced modifiers if your good at this help me quick Compare and contrast the accomplishments of the first three kings of the Israelites. What crops did Europeans return homewith? Select ALL that apply. what are the impact in increasing number of social grant on the teenage motherd