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]
2 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]2 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]2 years ago
4 0
The answer is b. I just did the question and that is the answer
You might be interested in
How do you find the vertical asymptote of a rational expression?
ElenaW [278]
Here is the answer to the question. Vertical asymptotes a<span>re vertical lines which correspond to the zeroes of the denominator of a </span>rational function. Therefore, in order to find the vertical asymptote of a rational expression, what you are going to do is to <span>set the denominator equal to 0 and solve for x. Hope this helps.</span>
5 0
3 years ago
to construct the midpoint of a segment, fold the paper so that the given line segment lies on itself and
Ludmilka [50]
And the endpoints lie on each other.
5 0
3 years ago
Read 2 more answers
If there are 5 green, 6 yellow, 8 blue, and 7 brown M&amp;M's, what is the probability that you choose a blue?
Alex777 [14]

Answer:

the probability is 69/420

4 0
3 years ago
Read 2 more answers
Tamara invested $15,000 in an account that pays 4% annual simple interest. Tamara will not make any additional deposits or withd
STALIN [3.7K]

In 3 years she will earn 1,800.

15,000 x .12=1,800


5 0
3 years ago
Express the ratio as a fraction in simplest form:<br> 18 ounces to 3 cups
IrinaVladis [17]

Answer:

6 : 1

Step-by-step explanation:

divide by 3 on both sides

18 ÷ 3 = 6

3 ÷ 3 = 1

6:1

8 0
3 years ago
Read 2 more answers
Other questions:
  • An angle measuring 22 degrees is bisected what is the measure of the angle that are formed
    14·2 answers
  • The body of a person who weighs 50 kilograms contains around 2 × 10^2 grams of sodium chloride. How much sodium chloride is cont
    6·1 answer
  • Starting time2:00 pm Ending time 8:30 what was the elapsed time
    9·2 answers
  • (14+3)–7=N<br><br>Perform te indicated operations<br><br>​
    9·1 answer
  • Monica bought a car for $x 3 years ago. Due to an inflation rate of 6% p.a. this car is now worth Mexican peso 50,000. Calculate
    11·1 answer
  • Which of the following is unbalanced?
    8·1 answer
  • What is parallel to y=4x-1
    9·2 answers
  • Given the following formula, with A = 27 and t = 3, solve for r.
    13·1 answer
  • On a coordinate plane, how are the locations of the points (-7 , -2) and (7 , 2) related?
    13·1 answer
  • The manufacturer is considering production quantities of 40,000 units or 80,000 units. For the 40,000 unit plan, assume 95% of p
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!