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
URGENT HELP (picture says everything you need to know)
seropon [69]

Answer:

I believe the quiz had 18 questions, with a 14:4 ratio

8 0
3 years ago
WILL GIVE Brainliest!!!!!!!!!!!<br> what is:<br> 8/3 + 2<br> as a fraction
mixer [17]

Answer:

14/3 or 4 2/3

Step-by-step explanation:

Hope it helps :)

Brainliest pls? Have a good day/night

8 0
3 years ago
Read 2 more answers
Problem Solving World
jonny [76]

Answer:

46

Step-by-step explanation:

To solve this, add.

28 + 18 = 46

7 0
3 years ago
Read 2 more answers
Instructions: Select the correct answer.
zepelin [54]
= 18 1/5 + 22 2/5 + 40 1/5
answer is D. last one
5 0
3 years ago
Suppose the sales tax rate is 5% on a $1300 tv how much is is the amount of tax?
shepuryov [24]

Answer:

Therefore, amount of tax is $65.

Step-by-step explanation:

Amount of tax = Tax% of $1300

Amount of tax = 5% of $1300

= (5/100) of $1300

= (1/20) of $1300

= $130/2

= $65

3 0
3 years ago
Other questions:
  • Look at the triangular prism below. Each triangular face or the
    14·2 answers
  • 3/4x-4=1/2 ?????????????????????????????????? what does x equal
    11·2 answers
  • What is the inverse of the function below?
    11·2 answers
  • 10 easy points!!!! What is the x-intercept of the line?
    15·1 answer
  • -1+3-5+7-...+97-99 plz help me
    11·1 answer
  • A pentagonal prism is cut by a plane perpendicular to the base. What is the shape of the cross section that is formed?
    11·1 answer
  • 6 people share 4/5 pound of peanuts equally. What fraction of a pound of peanuts does each person receive?
    5·1 answer
  • The hypotenuse of a right triangle is 13ft long. The longer leg is 7ft longer than the shorter leg. Find the side lengths of the
    15·2 answers
  • The price of a shirt is usually £45. During a sale the prices in the shop are reduced by 2 5 . How much is the shirt in the sale
    8·1 answer
  • Find the surface area of the<br>triangular prism.<br>5 cm<br>8 cm<br>7 cm<br>3 cm​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!