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
aleksley [76]
3 years ago
11

The length of a rectangle is twice it’s width if the perimeter of the rectangle is 54 cm

Mathematics
1 answer:
castortr0y [4]3 years ago
7 0

Width = 9cm

Length = 18cm

<u>Explanation:</u>

Let width = b,

So, length = 2b

Perimeter of rectangle = 2x(length + width)

According to the question,

54cm = 2X(2b + b)\\54cm = 2X(3b)\\27cm = 3b\\b = 9cm

Hence,

Width = 9cm

Length = 18cm

You might be interested in
Write out the first 5 outpouts of g(x)=2^x starting with G(1). If only you knew that the value of g(15) how would you determine
gtnhenbr [62]

The first 5 outputs are:

\begin{array}{c|c}x&2^x\\1&2\\2&4\\3&8\\4&16\\5&32\end{array}

As you can see, the outputs keep doubling each time we increment x by 1.

This can be written formally, observing that if you know the value of 2^x, the next value will be

2^{x+1}=2^x\cdot 2

So, again, we've shown that the next value is twice the previous one, so you have

g(16)=2g(15)

4 0
3 years ago
Factorize that x^4+4y^4​
ipn [44]

Answer:

  • (x² + 2y² + 2xy)(x² + 2y² - 2xy)

Step-by-step explanation:

<h3>Given binomial:</h3>

x⁴ + 4y⁴

In order to factorize it, follow the steps:

<h3>Complete the square:</h3>

  • x⁴ + 4y⁴ =
  • (x²)² + 2*(x²)*(2y²) + (2y²)² - 2*(x²)*(2y²) =
  • (x² + 2y²)² - (2xy)² =
  • (x² + 2y² + 2xy)(x² + 2y² - 2xy)

Used identities:

  • (a + b)² = a² + 2ab + b²
  • a² - b² = (a + b)(a - b)
4 0
2 years ago
You have 12 shirts and plan to wear a different one each day from Monday
JulsSmile [24]
It should be 95,040. On the first day, you have 12 choices. On the second, eleven, and so on, until day 5. 12x11x10x9x8.
6 0
3 years ago
Read 2 more answers
How many ways can nine trophies be arranged on a shelf​
irga5000 [103]

Answer:

it depends on the shelf

Step-by-step explanation:

6 0
3 years ago
(6 x2 - 6x + 4) - (x2 – 5x – 9)
DedPeter [7]
The answer is 9x+13
4 0
3 years ago
Other questions:
  • The answers sis i need help
    5·1 answer
  • Solve:<br> -1/2(-12y + 16) = 5y - 9
    13·1 answer
  • Find a formula for a geometric sequence that begins with 7, 35, 175,...​
    14·2 answers
  • Solve the system of equations.<br> 8x + 5y = 24<br> y = -4x<br> x =<br> y =
    14·1 answer
  • What a good men what a ever good men
    9·1 answer
  • Someone help me please!
    11·2 answers
  • Solve x/6 &gt; 7. Graph the solution on a number line.
    7·1 answer
  • The graph shown is y =
    8·2 answers
  • Solve using the quadratic formula. Show all work. Write each solution in simplest form. No decimals.
    14·2 answers
  • 72 times 73? <br>Need help answering​
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!