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
taurus [48]
3 years ago
16

A "golden rectangle” is a rectangle where the ratio of the longer side to the shorter side is the "golden ratio.” These rectangl

es are said to be visually pleasing. An example of a "golden rectangle” has a length equal to x units and a width equal to x – 1 units. Its area is 1 square unit. What is the length of this golden rectangle?
Mathematics
2 answers:
Dahasolnce [82]3 years ago
5 0

Answer:

length of golden rectangle = 1.618

Step-by-step explanation:

It is given that the length (L) of golden rectangle is x

And width (W) of rectangle is x-1

so we have

L = x

W= x-1

Now we have area of rectangle given by

Area = L × W

Area = x(x-1)                             ( we plug L= x and W= x-1)

It is given that area of rectangle is 1 square unit.

So we have

x(x-1)=1\\

x^2 -x=1       ( distribute x and remove parenthesis )

x^2 -x-1=0    ( subtract 1 from both sides )

Now to solve for x we need to use the quadratic formula

For quadratic equation ax^2 +bx+c=0

The quadratic formula is given by x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}

Here we have a= 1 , b=-1 c=-1 , so we have

x=\frac{-(-1)\pm\sqrt{(-1)^2 -4(1)(-1) }}{2(1)} \\x=\frac{1\pm\sqrt{1+4} }{2} \\x=\frac{1\pm\sqrt{5} }{2}

x= \frac{1\pm2.236}{2} \\x=\frac{1+2.236}{2}  or  x=\frac{1-2.236}{2}\\

x= 1.618 or x=-0.618

We can not have length negative

hence

length of golden rectangle = 1.618

kari74 [83]3 years ago
4 0
The answer is b. I just did the question and that is the answer
You might be interested in
Please help thank you
worty [1.4K]

Answer:

Pythagoras theorem states that “In a right-angled triangle, the square of the hypotenuse side is equal to the sum of squares of the other two sides“. The sides of this triangle have been named as Perpendicular, Base and Hypotenuse. Here, the hypotenuse is the longest side, as it is opposite to the angle 90°.

7 0
3 years ago
1. i’ll give you brainliest if u get this right
Allisa [31]

Answer:

Step-by-step explanation:

34 and m=7

6 0
2 years ago
Write each number in scientific notation
Sophie [7]

1. 6x10^6

2. 5.4x10^-6

3. 6x10^-1

4. 9x10^3

5. 6.7x10^1

6.  2x10^6

7. 2x10^1

8. 71,000

9. 4.89x10^4

10. 9x10^7

11. 63

11. 3.3

12. 3

13. 2.16x10^4

14. 4.2x10^3

15. 015

16. 4.8x 10^0


hope it helps!

8 0
3 years ago
Read 2 more answers
Solve the system of equations. <br><br> y=x+5 <br><br> y=-x+7
spin [16.1K]

Answer:

(1,6)

x = 1, y = 6

See attachment for the graph

Step-by-step explanation:

y=x+5  

y=-x+7

Using the elimination process

     y=x+5  

-     y=-x+7

----------------

     0=2x-2

     2=2x

      1=x

      x=1

Substitute x = 1

y = x + 5

y = 1 + 5

y = 6

4 0
3 years ago
Read 2 more answers
Which represents a quadratic function y=2(x+2)(x-1) in standard form
ale4655 [162]

answer: y= 2x^2+2x-4
steps:
y= (2x+4)(x-1)
*FOIL method* y= (2x^2-2x+4x-4)
*simplify* y= 2x^2+2x-4
4 0
3 years ago
Other questions:
  • If <br><img src="https://tex.z-dn.net/?f=v%20%3D%20%20%28%7B%5Cpi%20%20%5Ctimes%20r%7D%5E%7B2%7D%20%29h%20" id="TexFormula1" tit
    7·2 answers
  • What’s the ratio of 42¢ to $1.25? (Change dollars to cents)
    15·1 answer
  • Given the following equation of an exponential function determine the decay rate.
    6·1 answer
  • Over a 6 week period, the price of a gallon of gas increased by 18 cents.
    6·1 answer
  • Taylor is making a cookie cake that has a diameter of 13 in. What is the area of a fourth of the cookie cake?
    5·2 answers
  • Help on math? Thanks
    15·1 answer
  • What is 43.29 rounded to the nearest tenth
    10·1 answer
  • Natalie is rounding some numbers to the nearest tenth. Select the number that will have a 7 in the tenths place after rounding.
    10·1 answer
  • Kane's Furniture Store advertised a table at a 13% discount. The original selling price was $113, and the sale price was $100. W
    13·1 answer
  • A. (-10,-10)<br> B. (-1 /12, 9 1/2) <br> C. (1/2, 4) <br> D. (1,8)
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!