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
horsena [70]
3 years ago
11

Doblando un alambre de 40 cm formamos un rectángulo. Hallar la expresión algebraica que define el área del rectángulo y calcula

su valor para x=4.
Mathematics
1 answer:
Lady bird [3.3K]3 years ago
5 0

Answer:

A = 128\,cm^{2}

Step-by-step explanation:

El área del rectángulo se halla a través de la siguiente fórmula: (The area of the rectangle is obtained by the following formula:)

A = (40\,cm - 2\cdot x)\cdot x

Donde el área y x se miden en centímetros cuadrados y centímetros, respectivamente. (Where area and x are measured in square centimeters and centimeters, respectively)

Ahora, x se reemplaza y se encuentra el valor numérico del área: (Now, x is substituted and numerical value of area is finally determined:)

A = [40\,cm - 2\cdot (4\,cm)]\cdot (4\,cm)

A = 128\,cm^{2}

You might be interested in
What is the value of x in the solution to this system of equations?
liberstina [14]

Answer:

x = 11

Step-by-step explanation:

Given the expression;

5x+2y=67 ...1

x=3y−7 ....2

Substitute 2 into 1

5(3y-7)+2y = 67

15y - 35 + 2y = 67

17y = 67+35

17y = 102

y = 102/17

y =6

Recall that x = 3y - 7

x = 3(6) - 7

x = 18 - 7

x = 11

Hence the value of x is 11

6 0
3 years ago
Match the input values on the left ( X ) with the output values on the right ( Y ). y = 2 x + 7 1 . 9 3 2 . 13 4 3 . 15 1 4 . 11
KIM [24]

Answer:

wow let me try

Step-by-step explanation:it is a 90% sure

3 0
3 years ago
What is the degree of the polynomials w3-2w+w-5
yuradex [85]
16w because you need to add it up
7 0
3 years ago
By rounding to 1 significant figure work out 54×82​
pav-90 [236]

Answer:

4000

Step-by-step explanation:

5 0
3 years ago
A.Find the L.C.M of 18, 40, and 75.<br>​
Slav-nsk [51]

Answer:

1800

Step-by-step explanation:

→ First of all we need to find the prime factorisation of the numbers.

18 = 2 × 3 × 3 or 2 × 3²

40 = 2 × 2 × 2 × 5 or 2³ × 5

75 = 3 × 5 × 5 or 5² × 3

→ Now find the number that appear twice or more and write them down

3 and 3 from 18

2, 2 and 2 from 40

5 and 5 from 75

→ Now multiply all of these numbers together

3 × 3 × 2 × 2 × 2 × 5 × 5 = 3² × 2³ × 5² = 1800

5 0
3 years ago
Read 2 more answers
Other questions:
  • $1,000,000 Question: Answer these algebra problems
    15·1 answer
  • BRAINLIESSSTTT!!!
    15·2 answers
  • A line has a y-intercept at (0,4) and an x-intercept at (6,0). What is the slope of the line?
    13·1 answer
  • Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the corre
    5·1 answer
  • Solve for the indicated variable
    12·1 answer
  • Help please show the work if you can
    11·1 answer
  • This then, plz? how about this it blurry?
    14·2 answers
  • Convert 3.5 into fraction​
    9·1 answer
  • Of the 17 students in a programming class, 6 own 1 computer, 3 own 2 computers, 3 own 3 computers, 2 own 4 computers, and 3 own
    15·1 answer
  • In Passage 2, the author claims that freedoms granted
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!