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
wlad13 [49]
3 years ago
10

Find the dimensions of a rectangle with area 343000 m2 whose perimeter is as small as possible.

Mathematics
1 answer:
SOVA2 [1]3 years ago
6 0
LB = 343,000 

<span>B = 343,000 / L </span>

<span>minimizing perimeter is same as minimizing semi-perimeter S </span>
<span>S = L + B = L + 343,000 / L </span>

<span>S' = 1 - 343,000 /L^2 </span>

<span>setting S' to zero & taking the +ve value, </span>

<span>L = sqrt(343,000) = 585.66 m </span>

<span>since a rectangle with integer sides is wanted, </span>

<span>dimensions = 585 m x 586 m </span>
<span>------------------- --------------------</span>
You might be interested in
Mr.Nelson bought a coat on sale for $27 less than third its original price . He paid $54. What was the original price?
MAVERICK [17]

Answer:

$243.

Step-by-step explanation:

We can use algebra here.

Let x = the original price.

Then  1/3 x - 27 = 54

1/3x = 54 + 27 = 81

x = 81 /  1/3

x = 81 * 3

x = $243  (answer).

6 0
4 years ago
Read 2 more answers
Please its really urgent, step by step working out
Karo-lina-s [1.5K]

Answer:

70.99

Step-by-step explanation:

Use Pythagorean Theorem to find the shortest distance.

80^2-50^2=3900

Square rt= 62.44

Subtract by 15

47.44

Next find half of the circular path it is (3.14 x 15)/2

23.55

Add 47.44+23.55=70.99

Hope this is correct

8 0
3 years ago
If 40% of a number is 56 what was the original number
svp [43]
Percent is pars out of 100
40%=40/100=4/10=0.4
'of' means multiply
0.4 times something=56
divide both sides by 0.4
something=140

th enumber is 140
5 0
3 years ago
(please show work!!!)
dmitriy555 [2]
The variable “x” can be defined as the price of regular gas.
The equation is x = x - (.02)7
x = x - (.02)7
(.02)7 = .14
x = x - .14
 X - X = nothing so it just leaves you with -.14
The answer is that the gas price changed by a total of - 14 cents or -0.14
7 0
3 years ago
Round to the nearest degree<br> Find the value of x
Vladimir79 [104]

Answer:dk

Krk

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • What is 6y-(2y-5)=29
    12·2 answers
  • The base ticket price for a football game is modeled by the function p(x) = 15x + 10, where x is the years since the team starte
    7·2 answers
  • A piece of metal with a mass of 140. g is placed in a 50 mL graduated cylinder. The water level rises from 20. mL to 41 mL. What
    15·1 answer
  • Graph the function. Then state the domain and range.
    12·1 answer
  • Select the situation in which one quantity is changing at a constant rate in relation to another quantity
    7·1 answer
  • Solve. 24:126 = 48:X
    9·2 answers
  • -4b + 10 = -2<br><br> What is b
    15·1 answer
  • In which example are the events independent? A) Ariel has a standard deck of 52 cards. She draws one card from the deck and then
    10·2 answers
  • What is the value of x in the equation 3 x minus 4 y equals 65, when y equals 4?
    7·2 answers
  • Find the distance between the origin and the point ,(8,3)​
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!