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
laiz [17]
3 years ago
6

a rectangle has a perimeter of 88cm. if the height is three times the length of the width what are the dimensions of the rectang

le
Mathematics
1 answer:
fredd [130]3 years ago
5 0

Answer:

P=88. L=3w

P= 2(w)+2(L)

Then substitute the values into the equation

88=2w+2(3w)

Then solve for w and its length which is 3w

You might be interested in
Solve the following recurrence relation: <br> <img src="https://tex.z-dn.net/?f=A_%7Bn%7D%3Da_%7Bn-1%7D%2Bn%3B%20a_%7B1%7D%20%3D
-Dominant- [34]

By iteratively substituting, we have

a_n = a_{n-1} + n

a_{n-1} = a_{n-2} + (n - 1) \implies a_n = a_{n-2} + n + (n - 1)

a_{n-2} = a_{n-3} + (n - 2) \implies a_n = a_{n-3} + n + (n - 1) + (n - 2)

and the pattern continues down to the first term a_1=0,

a_n = a_{n - (n - 1)} + n + (n - 1) + (n - 2) + \cdots + (n - (n - 2))

\implies a_n = a_1 + \displaystyle \sum_{k=0}^{n-2} (n - k)

\implies a_n = \displaystyle n \sum_{k=0}^{n-2} 1 - \sum_{k=0}^{n-2} k

Recall the formulas

\displaystyle \sum_{n=1}^N 1 = N

\displaystyle \sum_{n=1}^N n = \frac{N(N+1)}2

It follows that

a_n = n (n - 2) - \dfrac{(n-2)(n-1)}2

\implies a_n = \dfrac12 n^2 + \dfrac12 n - 1

\implies \boxed{a_n = \dfrac{(n+2)(n-1)}2}

4 0
2 years ago
Someone plz help me I will give brainliest !!
JulsSmile [24]

Answer:

I think its 8

Step-by-step explanation:

3 0
2 years ago
Of the 60 books on a bookshelf, 24 are nonfiction, 9 are realistic-fiction, 11 are reference, and the remaining books are fantas
luda_lava [24]

Answer:

16

Step-by-step explanation:

You would first add all the diffrent types of books all together.

24+9+11= 44

Next subtract that from the total number of books to get how many fantasy books you have.

60-44= 16

7 0
3 years ago
Read 2 more answers
Evaluate 3 + (a + 4)(8 - b) when a = 5 and b = 6.<br> The value of the expression is
levacccp [35]

Answer:

21

Step-by-step explanation:

you plug in 5 for a and 6 for b and solve.

8 0
3 years ago
Read 2 more answers
45 POINTS!
Nadya [2.5K]

A negative scale factor inverts the original image and scales it to what the number is.

An expansion means the image would get bigger.

For an image to get bigger the scale factor needs be be greater than 1.


-2 means the image would increase in size and be inverted.

2 means the image would increase in size.


The two correct scale factors are -2 and 2.



4 0
2 years ago
Read 2 more answers
Other questions:
  • it's a week before the maths festival a maths exhibition costa £75.40 and so far 12 have been bought. what's the total income so
    13·1 answer
  • A metal strip of 44 inches long is to be cut in 2 pieces. the smaller piece to be 12 inches shorter than the larger piece. find
    12·1 answer
  • If the zeros of a function are = 2 and = 7, what was the function? Could there be more than one answer?
    12·1 answer
  • Write 6,000,370 in scientific notation.
    9·1 answer
  • (1, 1/2, 1/3, 1/4, ...)
    5·1 answer
  • A system of linear equations has been graphed in the diagram. Determine a reasonable solution for the system of equations.
    5·1 answer
  • Please help me! I will give brainly!
    13·2 answers
  • A right rectangular prism has edges of 8 feet, 4 feet, and 1/2 foot. How many cubes with side lengths of 1/2 foot would be neede
    14·1 answer
  • When doing polynomial long division, what is the first step to starting the problem?
    14·2 answers
  • What is the approximate area of the unshaded region under the standard normal curve below? Use the portion of the standard norma
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!