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
dem82 [27]
3 years ago
5

A primary school has a running track.

Mathematics
1 answer:
Paraphin [41]3 years ago
5 0

Answer:

Distance around the track = 194.3 metres.

Step-by-step explanation:

Given: The two straight sides are of the track are 50 metres each

          Diameter of each bend = 30 metres

Thus;

radius of the bends = \frac{diameter}{2}

                                  = \frac{30}{2}

                                  = 15 metres

So that,

length of the semicircular bend = \frac{1}{2} x 2\pir

                                   = \pir = \frac{22}{7} x 15

                                   = 47.143

length of each semicircular bend is 47.14 metres.

Distance around the track = addition of the length of each straight sides + addition of the length of the bends

                                 = 50 + 50 + 47.14 + 47.14

                                 = 194.28

Therefore,

Distance around the track = 194.3 metres.

You might be interested in
Which angles are supplementary angles?
Tpy6a [65]

Answer:

Supplementary angles are two angles with a sum of 18 0 ∘ 180 ^\circ 180∘ . A common case is when they lie on the same side of a straight line.

Answer - KJM and KJH

If i'm wrong please tell me

5 0
3 years ago
What do you call to the set of ordered pairs
satela [25.4K]

Answer:

A relation is a set of ordered pairs. The set of all first components of the ordered pairs is called the domain of the relation and the set of all second components of the ordered pairs is called the range of the relation.

Step-by-step explanation:

6 0
4 years ago
Read 2 more answers
find the local and/or absolute extrema for the function over the specified domain. (Order your answers from smallest to largest
Arlecino [84]

Answer:

Minimum 8 at x=0, Maximum value: 24 at x=4

Step-by-step explanation:

Retrieving data from the original question:

f(x)=x^{2}+8\:over\:[-1,4]

1) Calculating the first derivative

f'(x)=2x

2) Now, let's work to find the critical points

Set this

2x=0\\x=0    

0, belongs to the interval. Plug it in the original function

f(0)=(0)^2+8\\f(0)=8

3)  Making a table x, f(x) then compare

x|  f(x)

-1 | f(-1)=9  

0 | f(0)=8   Minimum

4 | f(4)=24 Maximum

4) The absolute maximum value is 24 at x=4 and the absolute minimum value is 8 at x=0.    

5 0
3 years ago
I need help please!!
Sergio039 [100]

Answer:

16 cm2

Step-by-step explanation:

By equa tion of area of triangle: S = 1/2 * height * base

Triangle B: 32  = 1/2 * 8 * x --> x = 8 (cm)

The base of triangle A is half of the base of triangle B so it is 4 cm.

The area of triangle A = 1/2 * 8 * 4 = 16 (cm2)

5 0
3 years ago
What is √10/√3 in simplest radical form?
kotykmax [81]
(√10)/(√3)*(√3)/(<span>√3); multiplied by the conjugate which is = (</span><span>√30/3)</span>
7 0
3 years ago
Other questions:
  • the combined weight of an older sister and her baby brother is 74 pounds. The weight of the older sister is 2 pounds less than t
    5·1 answer
  • In Morristown, the library is 3 kilometers south of the courthouse and 4 kilometers west of the community swimming pool. If a bi
    12·1 answer
  • Help please............
    14·1 answer
  • The product of k and 6
    5·1 answer
  • What is the area of parallelogram abcd? HELP THIS IS TIMED​
    5·1 answer
  • Please help me! Thank you!
    12·1 answer
  • In kite WXYZ, mZWY = 41° and mXYW = 11°<br><br><br> What is mWZY?
    5·1 answer
  • In need help <br> Relationships in Triangles
    8·1 answer
  • Please help <br>__________________​
    12·2 answers
  • 2а + 20 = -3а - 5 pls help
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!