1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
gogolik [260]
3 years ago
10

In Example 3, the track has 6 lanes that are each 1 meter in width. a. What is the outer perimeter of the track? Round your answ

er to the nearest meter. The outer perimeter is about meters.
Mathematics
1 answer:
son4ous [18]3 years ago
5 0

Answer:

Incomplete question, check attachment for the necessary diagram

Step-by-step explanation:

Note in the attachment,

We have two identical straight line of lenght

L1 = L2 = 84.39m

We also have two identical semicircle or radius 36.5m to the first track lane

But this is not the radius of the circle, the radius of the circle will now be 36.5 plus the 6 track lane and we are told that one track lane is 1m, then, the track lane is 6m

So, radius = 36.5+6

r = 42.5m

Then, we need to calculate the perimeter of the semicircle using the formula of perimeter of a circle and dividing by2

P = 2πr/2

P =πr

P = 22/7 × 42.5

P = 133.57 m

Then, the arc 1 is equal to arc 2 which is equal to 133.57 m

A1 = A2 = 133.57 m

Now we have all the dimensions,

Then, the perimeter can be calculated by adding the length of the sides

The perimeter of the field = Lenght of the two straight lines plus the length of the two semicircle arc

P = L1 + L2 + A1 + A2

P = 84.39 + 84.39 + 133.57 + 133.57

P =435.923 m

So, to the nearest meter

P ≈ 436m

The perimeter of the track is 436m

You might be interested in
(01.01 LC)A dancer took forward and backward steps of equal length during a dance. After taking 16 steps total, she was back at
Gennadij [26K]

Since the steps are the same size, and she ended up where she started, she must have taken the same number of steps forward as she took backward.

16/2 = 8

She took 8 steps forward and 8 steps backward.

5 0
3 years ago
Read 2 more answers
Use division to determine whether the ratios form a proportion.
Leya [2.2K]
A. yes. they form a proportion
1/4 and 6/24

6/24=1/4
1/4=.75
1/4=.75
3 0
3 years ago
Read 2 more answers
Find the minimum or maximum value of the function g(x)=−3x2−6x+5
polet [3.4K]

Step-by-step explanation:

g(x) = ax²+bx+c

g(x)=−3x²−6x+5

a = -3, b= -6, c = 5

since a <0 , the function has only maximum value.

=> g'(x) = 0

-6x -6 = 0

-6x = 6

x = -1

the maximum value => g(-1) =

-3(-1)²-6(-1)+5 = -3+6+5 = 9

the domain : {x | x € Real numbers}

the range : {y| y ≤ 9, y € Real numbers}

the function is increasing for x < -1

the function is decreasing for x > -1

4 0
3 years ago
Can you solve number 74 plzzzzzzzzzzzzzzzzzzz
Mila [183]
The answer would be graph b.
It would be graph b because the point would be five to the left(West) and two down(South).
3 0
3 years ago
the ratio of 3 numbers is 2:3:4.the largest number is 10 more than the smallest. what is the middle number
MissTica
See, pls, the offered decision:
1. this ratio has another form: 2x/3x/4x;
2. the difference between the largest and the smallest is 4x-2x=10.
Then x=5, and the sequence of numbers is 10/15/20, where 15 is the middle number.
Answer: 15.
3 0
3 years ago
Other questions:
  • Y+3=1/4x <br> What is the standard form of the following equation
    7·1 answer
  • in an isosceles triangle if a base angle has a measure of 55 degrees then the vertex angle must have a measure of 70 degrees as
    14·1 answer
  • Line w ll segment YZ
    13·1 answer
  • Find the area of a rhombus having perimeter 80 em and one diagonal 24 cm.<br>​
    12·1 answer
  • There are 33 people at the pool. then 19 people go home. how many people are at the pool now
    8·1 answer
  • Please help me with this homework
    13·1 answer
  • Which equation represents the line shown on the coordinate grid? (5,0) (0,-2)
    8·1 answer
  • Hey can yall help me asap
    10·1 answer
  • Is 5z,5x,5y a like terms or unlike terms
    9·1 answer
  • May someone help me please :)
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!