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
Lemur [1.5K]
3 years ago
13

Se desea cortar una tela en pedazos rectangulares cuya área sea igual a 72 cm2 a. Elaborar la tabla que muestra los posibles val

ores para el largo y el ancho de los rectángulos. b. Determinar la relación entre el largo, l, y el ancho, a, de los rectángulos. c. Determinar la expresión matemática que relaciona el largo y el ancho. d. Realizar la gráfica que representa los valores del largo y el ancho
me ayudan por favor!!

Physics
1 answer:
Masteriza [31]3 years ago
6 0

Answer:

the mathematical expression that relates the length and width:

y = 72/x

See explanation and attachments below for other answers to the question.

Question:

You want to cut a fabric into rectangular pieces whose area is equal to 72 cm2

a. Prepare the table that shows the possible values ​​for the length and width of the rectangles.

b. Determine the relationship between the length, l, and the width, a, of the rectangles.

c. Determine the mathematical expression that relates the length and width.

d. Make the graph that represents the values ​​of the length and width.

Explanation:

a) Area of the rectangle = 72cm²

Area of a rectangle = length × breadth = l×b

Let's find the factors of 72:

1,2,3,4,6,8,9,12,18,24,36,72

Since length is longer than width, the length would have the longest side in each possible dimension.

Possible dimensions of the rectangles (width ×length):

1×72; 2×36; 3×24; 4×18; 6×12; 8×9

See the attachment for the table that shows the possible values ​​for the length and width of the rectangle.

Let y = length and x= width

b) The relationship between the length, l, and the width, w, of the rectangles:

Area = l × w

72 = lw

l = 72/w

The relationship between the length, l, and the width, w, of the rectangles: l = 72/w

c) Area = x × y

Since y = length and x= width

72 = xy

y = 72/x

the mathematical expression that relates the length and width:

y = 72/x

d) see attachment for the graph

You might be interested in
Jupiter is a much more massive planet than Earth. What would happen to a person’s mass and weight if he were on Jupiter?
Harrizon [31]
There would be no mass or weight and he would float away
5 0
3 years ago
Read 2 more answers
An apple from the top branch of the tree and an apple from the bottom branch of a tree fall at the same time. Which apple will h
Vedmedyk [2.9K]
B. The apple from the bottom will hit the ground earlier. This is because an increase in height causes an increase in the time that the object will fall, and therefore will affect the final velocity of the falling object. Moreover, the reduction in velocity due to friction from the air should also be considered.
3 0
3 years ago
A lightweight vertical spring of force constant k has its lower end mounted on a table. You compress the spring by a distance d,
shusha [124]

Answer:

v=d\sqrt{\frac{k}{m}}

Explanation:

In order to solve this problem, we can do an analysis of the energies involved in the system. Basically the addition of the initial potential energy of the spring and the kinetic energy of the mass should be the same as the addition of the final potential energy of the spring and the kinetic energy of the block. So we get the following equation:

U_{0}+K_{0}=U_{f}+K_{f}

In this case, since the block is moving from rest, the initial kinetic energy is zero. When the block loses contact with the spring, the final potential energy of the spring will be zero, so the equation simplifies to:

U_{0}=K_{f}

The initial potential energy of the spring is given by the equation:

U_{0}=\frac{1}{2}kd^{2}

the Kinetic energy of the block is then given by the equation:

K_{f}=\frac{1}{2}mv_{f}^{2}

so we can now set them both equal to each other, so we get:

=\frac{1}{2}kd^{2}=\frac{1}{2}mv_{f}^{2}

This new equation can be simplified if we multiplied both sides of the equation by a 2, so we get:

kd^{2}=mv_{f}^{2}

so now we can solve this for the final velocity, so we get:

v=d\sqrt{\frac{k}{m}}

6 0
3 years ago
Rock formed from harden magma that rises to the surface is called ​
salantis [7]

Answer:

Igneous rocks

Explanation:

3 0
3 years ago
Geologists know the past temperature of the planet based on rock and fossil evidence. Why do you think it is difficult to determ
Basile [38]

Answer:

I think it is difficult to determine what has caused climate change in the distant past because it must have been a long time ago so geologists can't carry out different experiments and figure out what gases the planet had conjured, so geologists can only make predictions based off the evidence they currently have from what the planet looked like before. The planet must have changed over the years, therefore the climate has also changed in the future, so they cannot work with how the planet looked in the past.

7 0
3 years ago
Other questions:
  • A 20 kilogram ball rolls down a 10 meter ramp at the rate of 15 meters per second. The kinetic energy is joules
    8·1 answer
  • Which of these temperatures is closest to 100 k?
    5·1 answer
  • Diffuse reflection occurs when the size of surface irregularities is
    8·1 answer
  • Assume the average value of the vertical component of Earth's magnetic field is 42 μT (downward) in some region that has an area
    14·1 answer
  • ____ is rate of change of position.
    6·2 answers
  • 2. How can people know that they've learned?
    5·1 answer
  • Consider this situation: A force is applied to a box to move it
    11·1 answer
  • During the new moon phase, why is the Moon not visible in the sky?
    7·1 answer
  • National Instant Criminal Background Check System is used for a person trying to access a government website.
    7·1 answer
  • HELP ME OUT PLEASE!!!!!
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!