A rectangular field has perimeter 600 m and area 21600 m squared. Find the dimensions of the field.​

Answers

Answer 1

Answer:

Let length be x and width be y

[tex]perimeter = 2(l + w) \\ 600 = 2(x + y) \\ x + y = 300 - - - (a) \\ \\ area = l \times w \\ 21600 = xy - - - (b) \\ from \: (a) : \\ y = 300 - x \\ \therefore21600 = x(300 - x) \\ 21600 = 300x - {x}^{2} \\ {x}^{2} - 300x + 21600 = 0 \\ (x - 180)(x - 120) = 0 \\ x = 180 \: \: or \: \: 120 \: m \\ \\ y = 120 \: \: or \: \: 180 \: m \\ \\ { \boxed{ length = 180 \: m}} \\ { \boxed{width = 120 \: m}}[/tex]


Related Questions

H. E. L. P. ! ! ! ! ​

Answers

Answer:

(D) $1 050

Step-by-step explanation:

Simple interest = 7000 × 3 × 5/100 =

70 x 15 = 1 050

If I can travel 35 miles on 1 gallon of fuel and my tank holds 8 gallons, how many miles can I travel on a tank of fuel?


Answers

Answer:

can can travel 280 miles

Step-by-step explanation:

please help me with this

Answers

Answer:

[tex]r^{6}[/tex]

Step-by-step explanation:

Using the rule of exponents

[tex]\frac{a^{m} }{a^{n} }[/tex] = [tex]a^{(m-n)}[/tex] , then

[tex]\frac{r^{9} }{r^{3} }[/tex] = [tex]r^{(9-3)}[/tex] = [tex]r^{6}[/tex]

PLEASE HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP please help please help

Answers

Answer:

Perpendicular and parallel

What is the length of the diagonal of the square shown below? ​

Answers

5√2

Step-by-step explanation:

By the Pythagorean theorem,

A² + B² = C²

5² + 5² = C²

25 + 25 = C²

C² = 50

C = √50

C = √(2 • 25)

C = √2 x √25

C = √2 • 5

C = 5√2

Answer:

5[tex]\sqrt{2\\}[/tex]

Step-by-step expla

chọn  tam giác ==> cạnh huyền là đường chéo của hình vuông  ảg

sin(∝)= đối / huyền

⇒huyền= đối /sin(45°)

⇒huyền=  5/ sin(45°)

⇒huyền=  5[tex]\sqrt{2}[/tex]

Identifying the Input Value of a Function
The tiles on the left contain functions written using function notation. Match each function with its input.
h(g) = -4+9
The input is f.
f(h) = h - 7
The input is h.
g(t) = 21
The input is g.
Done
Intro

Match each function with its impact

Answers

Answer: g(f)= 2f - The input is f

h(g)=-4+g - The input is g

f(h)=h-7 - The input is h

Step-by-step explanation:

The matches are:

h(g) = -4 + 9 corresponds to input g.

f(h) = h - 7 corresponds to input h.

g(t) = 21 corresponds to input t.

We have to given that,

To Match each function with its input.

h(g) = -4+9

The input is f.

f(h) = h - 7

The input is h.

g(t) = 21

The input is g.

Now, We get;

h(g) = -4 + 9 corresponds to input g.

f(h) = h - 7 corresponds to input h.

g(t) = 21 corresponds to input t.

So the matches are:

h(g) = -4 + 9 corresponds to input g.

f(h) = h - 7 corresponds to input h.

g(t) = 21 corresponds to input t.

Learn more about the function visit:

https://brainly.com/question/11624077

#SPJ7

At what percent rate of compound interest p.a will the compound interest on rs343000be rs169000 in 3 years

Answers

Answer:

The money was invested at an interest of 14.28% per year.

Step-by-step explanation:

To determine at what percent rate of compound interest per year will the compound interest on $ 343000 be $ 169000 in 3 years, the following calculation must be performed:

343,000 x (1 + X / 1) ^ 3x1 = 343000 + 169000

343,000 x 1 + X ^ 3 = 512,000

1 + X ^ 3 = 512,000 / 343,000

1 + X ^ 3 = 1.4927

1 + 0.14286 ^ 3 = 1.4927

1.4927 = 1.4927

X = 0.14286 x 100 = 14.28%

Therefore, the money was invested at an interest of 14.28% per year.

Worth 12 points and actually help me with the question plz

Answers

Answer:

(x + 1, y - 3)

Step-by-step explanation:

The translation is 1 unit right and 3 units down.

Answer:

x+1 y-3

Step-by-step explanation:

Because with any of the points it goes to the right 1 and down 3

Help pls and thank uu

Answers

Answer:

[tex]for~x=3[/tex]

[tex]f(x)=-5[/tex]

[tex]So,f(3)=-5[/tex]

--------------------------hope it helps...have a great day!!

State if the triangles in each pair are similar. If so, state how you know they are similar and complete the similarity statement. *

Answers

Answer:

please give me brainliest for quest

Step-by-step explanation:

Which of the following is an equivalent trig ratio for tan 28

Cos 62

1/ tan 62

1/ tan152

Cos 28

Answers

Answer:

B

Step-by-step explanation:

tan28=tan (90-62)=cot 62=1/tan 62

Correct answer gets brainliest!

Answers

Answer:

D

Step-by-step explanation:

YD and TH

TH is in HOT and YD is in DAY

They go from end to the front in the same way

Making a straight line from left to right that are on the same place

A cylinder and a sphere both have the same radius, 4. The height of the cylinder is equal to the diameter of the sphere. Select the expression that describes the volume of the cylinder that is not occupied by the sphere.

Answers

Answer:

134.04 cubic units

Step-by-step explanation:

Step 1

Find the Volume of the Sphere

Formula = 4/3πr³

r= radius = 4

Hence,

Volume = 4/3 × π × 4³

= 268.08 cubic units

Step 2

Find the Volume of the cylinder

Formula = πr²h

r = radius = 4

h = Height = Diameter of the sphere

Radius of a sphere = 4

Diameter = Height of cylinder = 2 × r = 2 × 4 = 8

Hence: π × 4² × 8

= 402.12 cubic units

Step 3

The expression that describes the volume of the cylinder that is not occupied by the sphere = Volume of Cylinder - Volume of sphere

= 402.12 cubic units - 268.08 cubic units

= 134.04 cubic units

The expression that describes the volume of the cylinder that is not occupied by the sphere is 134.04 cubic units

We have given radius of sphere is 4

What is the formula for volume of the Sphere?

[tex]V= 4/3\pi r^3[/tex]

r= radius

We have given that r=4

[tex]Volume = 4/3 \times \pi \times 4^3[/tex]

V= 268.08 cubic units

What is the formula for volume of the cylinder?

[tex]Formula = \pi r^2h[/tex]

r = radius = 4

h = Height = Diameter of the sphere

Radius of a sphere = 4

Diameter = Height of cylinder

= 2 × r

= 2 × 4

= 8

Therefore we get

[tex]V=\pi \times 4^2 \times 8[/tex]

V= 402.12 cubic units

The expression that describes the volume of the cylinder that is not occupied by the sphere = Volume of Cylinder - Volume of sphere

= 402.12 cubic units - 268.08 cubic units

= 134.04 cubic units

Therefore the expression that describes the volume of the cylinder that is not occupied by the sphere is

(402.12  - 268.08) cubic units.

To learn more about the volume visit:

https://brainly.com/question/1972490

what is the correct answer​

Answers

Answer:  54.6 cm   (choice B)

===================================================

Explanation:

Focusing on triangle ACD, we see that AC = 20 is the hypotenuse and AD =  20/2 = 10 is the short leg. The short leg is half that of the hypotenuse when working with 30-60-90 triangles.

Also, for these types of triangles, the long leg is sqrt(3) times that of the short leg. That makes CD = AD*sqrt(3) = 10*sqrt(3)

The opposite sides are the same length, meaning BC = AD and AB = CD.

-----------

The perimeter of rectangle ABCD is

P = AB+BC+CD+AD

P = 10*sqrt(3) + 10 + 10*sqrt(3) + 10

P = 20 + 20*sqrt(3)

P = 54.6410161513776

P = 54.6 cm is the approximate perimeter

Answer:

54.64 cm

Step-by-step explanation:

The perimeter of a rectangle is the total length of all the sides of the rectangle. Hence, we can find the perimeter by adding all four sides of a rectangle. Perimeter of the given rectangle is a + b + a + b.

Length of CD = 17.32 cm from :

[tex] \sin(60) = \frac{cd}{20} \\ then \: x = 17.32 \: cm[/tex]

now CD = BA

Now we must determine length of AD :

[tex] \sin(30) = \frac{ad}{20} \: then \: ad \: = 10 \: cm[/tex]

Now :

perimeter = 17.32 + 17.32 +10+10 = 54.64 cm

can you guys help me please!

Answers

Answer:

Step-by-step explanation:

Evaluate the expression 4q(q + 3w)^2 when q = 2 and w = 3

Answers

if i did it right, it should be 7744, 4(2)(2+3(2))^2

hi please answer me asap I will mark brainlist​

Answers

Answer:

for No1 answer is 0. for no 2 answer is 9.

Step-by-step explanation:

for no 3 answer is 14. no 4 =5,no 5 = 0 ,no 6= -16/3 ,no 7 =-3 ,no 8=180 and no 9 = 3

Pls help me with this!

Answers

Answer:

5 ÷ 1/3

5 × 3/1

5 × 3

=15

Step-by-step explanation:

the answer is 15

5/12,3/8,6,14in ascending or


der​

Answers

I would say the answer is ascending.

Please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!

Answers

The answer is 100.53.

This is the circumference using the formula C=2πr .

Answer:

C = 32π

Step-by-step explanation:

The circumference (C) of a circle is calculated as

C = 2πr ( r is the radius ) , then

C = 2π × 16 = 32π units

A red light flashes every 6 seconds
A yellow light flashes every 4 seconds
They both flash at the same time.

After how many seconds will they next both flash at the same time?

Answers

Answer:

12

Step-by-step explanation:

6 and 4 are factors of 12

6, 12

4, 8, 12

What is 2y+5 = 3y+2 ?

Answers

2y + 5 = 3y + 2

=> 5 - 2 = 3y - 2y

= 3 = y

Answer:

y = 3

Step-by-step explanation:

2y + 5 = 3y + 2

2y - 3y + 5 = 3y - 3 y + 2                  [ subtract both sides by 3y ]

- y + 5 = 0 + 2                                  [ 3y - 3y = 0 ]

- y + 5 - 5 = 2 - 5                              [ subtract by 5 on  both sides ]

- y + 0 = - 3                                      [ -5 + 5 = 0 ]

  - y = - 3                      

     y = 3                                          [ divide by - 1 on both sides ]            

47 randomly selected students were asked how many siblings were in their family. Let X represent the number of pairs of siblings in the student's family. The results are as follows:
# of Siblings 0 1 2 3 4 5 6
Frequency 4 11 8 10 6 5 3

Round all your answers to 4 decimal places where possible.

The mean is:


The median is:


The sample standard deviation is:


The first quartile is:


The third quartile is:


What percent of the respondents have at least 4 siblings?
%

94% of all respondents have fewer than how many siblings?

Answers

mean: 2.238
median: 3
sample standard deviation: 2.531
first quartile: 1
third quartile: 5

what % of respondents have at least 4 siblings?
29.79%

94% of all respondents have fewer than how many siblings?
5

A force of 68 N is applied to an area of 540 cm2. Calculate the pressure in N/m2. Give your answer to the nearest integer.

Answers

Answer:

[tex]P=1259.26N/m^2[/tex]

Step-by-step explanation:

From the question we are told that:

Force [tex]F=68N[/tex]

Area [tex]A=540cm^2=0.054m^2[/tex]

Generally the equation for Pressure is mathematically given by

 [tex]P=\frac{F}{A}[/tex]

 [tex]P=\frac{68}{0.054}[/tex]

 [tex]P=1259.26N/m^2[/tex]

Find area of shaded regioni in pi T):
3 in
120°
area of sector:
pi
Submit

Answers

Answer:

A = 2π in2

Step-by-step explanation:

See the image I have shared

Will give BRAINLIST,

Answers

the bottom one... i think

Answer:

∠ 1 = 53°, ∠ 2 = 37°

Step-by-step explanation:

let ∠ 2 be x then ∠ 1 = x + 16

Complementary angles sum to 90° , then

x + 16 + x = 90

2x + 16 = 90 ( subtract 16 from both sides )

2x = 74 ( divide both sides by 2 )

x = 37

Then

∠ 2 = 37° and ∠ 1 = 37 + 16 = 53°

Peter work three more days than jill. Peter earn $20 day jill earn $40 day. But they earned the same amount of money

Answers

Answer: Wowwww that ain't good at all and sooo not fair if Peter worked three more days than Jill but still only got twenty bucks. That's pretty sad.

Step-by-step explanation:

girl and what is the question

For A = R + PRT/100 make P the subject.

Answers

Answer:

P=100(A-R)/RT

Step-by-step explanation:

A-R=PRT/100

100(A-R)=PRT

100(A-R)/RT=P

P=100(A-R)/RT

The area of a planned garden can be modeled by the equation A= -4w2 + 64w,
where w is the width of the garden in feet. Someone please help

Answers

Answer:

8 feet, 256 ft^2

Step-by-step explanation:

The function of the area can be graphically rapresented with a parabola that opens downwards

in this specific case the vertex is the maximum point of the parabola.

(X) Vertex = -64/-8 = 8 feet

(Y) Vertex = -4(64) + 512 = -256 + 512 = 256 ft^2

Answer:

Maximum Width = 8 feet.

Maximum area = 256 ft^2.

Step-by-step explanation:

Part A.

A = -4w^2 + 64w

Finding the derivative:

dA/dw = -8w + 64 = 0  for maxm/minm, so

-8w  = -64

w = 8

The second derivative is -8 so w = 8 gives a maximum.

Part B.

The maximum area = -4(8)^2 + 64*8

= -256 + 512

= 256 ft^2.

Help
Help
Help
Help
Help
Help

Answers

Answer:

105˚, 75˚

Step-by-step explanation:

<2 is 75˚ by same side angles of a transversal.

<1 is supplementary to <2 so 180-75 = 105˚

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