Work out the area of a rectangle with base, b=20mm and perimeter, p=50mm

Answers

Answer 1

Answer:

100mm²

Explanation:

the other side: (50 - 20 × 2) ÷ 2 = 5

5 × 20 = 100

Answer 2

Answer:

Subtract given lengths: 50 - 20 = 30

Divide by 2 since there are 2 missing sides that need a length: 30 divided by 2 = 15

With the given side lengths multiply all of them to get your area.

15 x 20 = 300 is your area I am pretty sure.


Related Questions

Question 4 of 25
Which statement correctly compares nuclear fission with nuclear fusion?

A. Nuclear fission forms a larger nucleus, and nuclear fusion forms
smaller nuclei.

B. Nuclear fission uses a common isotope, and nuclear fusion uses a
rare isotope.

C. Nuclear fission reactions demonstrate the conservation of atomic
number, and nuclear fusion reactions do not.

D. Both nuclear fission and nuclear fusion produce energy from
matter


Help please

Answers

Answer:

Both nuclear fission and nuclear fusion produce energy from

matter

:D

Both nuclear fission and nuclear fusion produce energy from matter is the statement correctly comparing nuclear fission with nuclear fusion.

What is nuclear fusion?

The process by which two or more tiny nuclei unite to generate a bigger nucleus is known as a nuclear fusion reaction.

The more energy it takes to liberate an electron from a smaller atom. This is referred to as binding energy.

As a result, when two little nuclei fuse together, there is more binding energy than when two big nuclei fuse together.

For example, the fusion of two hydrogen atoms produces more energy than the fusion of one helium atom, and surplus energy is expelled into space upon binding.

Both nuclear fission and nuclear fusion produce energy from matter is the statement correctly comparing nuclear fission with nuclear fusion.

Hence option D is correct.

To learn more about nuclear fusion refer to the link;

https://brainly.com/question/14019172

formula for linear expansity ​

Answers

...................................

a battery causes a current of 2.0 A to flow through a lamp. the power used by the lamp is 12 watts. what is the voltage (i asked this before and never got the answer, i need the answer soon)

Answers

Answer: 6V

Explanation:

The diagram below shows a light ray striking a plane mirror surface at an angle of 40° to the normal.
Which of the following diagrams shows the ray that is reflected from the plane mirror surface?

Answers

Answer:

we need to see all of the options

Explanation:

An archer shoots an arrow 75 m distant target; the bull's-eye of the target is at the same height as the release height of the arrow. If d = 75 m and v = 37 m/s. At what angle must the arrow be released to hit the bull's-eye if its initial speed is 37 m/s?

Answers

Answer:

[tex]16.25^{\circ}[/tex]

Explanation:

R = Horizontal range of projectile = 75 m

v = Velocity of projectile = 37 m/s

g = Acceleration due to gravity = [tex]9.81\ \text{m/s}^2[/tex]

Horizontal range is given by

[tex]R=\dfrac{v^2\sin2\theta}{g}\\\Rightarrow \theta=\dfrac{\sin^{-1}\dfrac{Rg}{v^2}}{2}\\\Rightarrow \theta=\dfrac{\sin^{-1}\dfrac{75\times 9.81}{37^2}}{2}\\\Rightarrow \theta=16.25^{\circ}[/tex]

The angle at which the arrow is to be released is [tex]16.25^{\circ}[/tex].

Which force is always attractive and has a very small range? strong nuclear O weak nuclear O gravitational electromagnetic​

Answers

Answer:

Strong nuclear

Explanation:

Took a quiz on this and got it right

Answer:

Strong nuclear

Explanation:

Of the following metals, which one is the BEST conductor of electricity?
Iron
Steel
Aluminum
Silver

Answers

Silver

Take a look at the chart attached for most conductive

More people die cach year in the U.S. as a result of

Answers

I would say the Common Cold because it's the main reason why kids and adults miss school or work.

I hope this helps <3 :)

(also  please mark brainliest if you want to)

Answer:

For more than a decade, heart disease and cancer have claimed the first and second spots respectively as the leading causes of deaths in America. Together, the two causes are responsible for 46% of deaths in the United States. There is donation center's to help fight back against cancer and heart diseases, There are also of course places you can go to become a organ donner if there is no saving you from something... Hope this helps^_^

Explanation:

plz give brainliest and rating

What will be the mass of a body at the center of the earth as compared to other places on
the earth?

Answers

The mass of the object does not change by moving it to another place. ... At the center of the earth the net gravitational force is zero, so the weight will be zero, but its masses will remain same. Hence the mass at the centre of earth will be equl to 50 kg.

Answer:

The mass of the object does not change by moving it to another place. ... At the center of the earth the net gravitational force is zero, so the weight will be zero, but its masses will remain same. Hence the mass at the centre of earth will be equl to 50 kg.

Explanation:

It's because the mass of the object doesn't change by moving it to next place.

The speed of light is 300,000,000 m/s. Red light has a wavelength of 0.0000007 m. What is its frequency?

Answers

Answer:

2.33..

Explanation:

f = wavelength/speed

= 0.0000007/300000000

= 2.333...

who needs more body building food, a father or a child? Why?​

Answers

Answer:

A Child has a fast metabolism since it is growing fast it needs Food, Liquids, Sleep.

Explanation:

A father has already Grown and is only gaining age.

So we can Conclude that A child needs more body building food.

A double slit produces a diffraction pattern that is a combination of single and double slit interference. Find the ratio of the width of the slits to the separation between them, if the first minimum of the single slit pattern falls on the fifth maximum of the double slit pattern. (This will greatly reduce the intensity of the fifth maximum.)

Answers

Answer:

The ratio of the width of the slits to the separation between them is 1:5

Explanation:

For this set of question

n = 1, m = 5

As we know for nth minimum

[tex]D sin\theta =n \lambda[/tex]

For mth Maximum

[tex]d sin\theta =m \lambda[/tex]

From the above two equations we get

[tex]Sin\theta = \frac{1*\lambda}{D} \\d * \frac{1*\lambda}{D} = 5 *\lambda\\\frac{D}{d} = \frac{1}{5}[/tex]

The ratio of the width of the slits to the separation between them is 1:5

100 cm cubic of water is mixed with 50 centimetres cubic of concentrated acid of density 1.2 gram per centimetre cube assuming no change in volume find the average density of the mixture the density of water is 1.0 gram per centimetre cube​

Answers

Answer:

Average Density = 1.07 g/cm³

Explanation:

The average density of the whole mixture is given by the following formula:

[tex]Average\ Density = \frac{mass\ of\ whole\ mixture}{volume\ of\ whole\ mixture}[/tex]

where,

volume of whole mixture = volume of water + volume of acid

volume of whole mixture = 100 cm³ + 50 cm³ = 150cm³

mass of whole mixture = mass of water + mass of acid

mass of whole mixture = (volume of water)(density of water) + (volume of acid)(density of acid)

mass of whole mixture = (100 cm³)(1 g/cm³) + (50 cm³)(1.2 g/cm³)

mass of whole mixture = 160 g

Therefore,

[tex]Average\ Density = \frac{160\ g}{150\ cm^3}[/tex]

Average Density = 1.07 g/cm³

Two objects collide. One of the objects deforms upon collision. What type of collision is this?

Select one:

A: Elastic collision, because energy is used to defom the object.

B: Inelastic collision, because energy is conserved.

C: Inelastic collision, because kinetic energy was lost when the object was deformed.

D: Elastic collision, because momentum is conserved.​

Answers

Answer:

D Elastic collision because momentum is conserved

Explanation:

this is the answer may i be marked brainliest?

Which shows transformation of energy in a working television?


A. mechanical energy to sound and light

B. electrical energy to light and sound

C. light to electrical energy to mechanical energy

D. electrical energy to light to sound to heat energy

Answers

Explanation:

the answer is b I think.......

do electronics harm our mental physical and social health

Answers

Answer:

(I will talk in my opinion only)

electronics do harm our mental health but they are also helpful ones like mobile both a boon and a curse

physical health is greatly affected and it's something no need to explain

social ( for me ) my only place to be social and talk people is brainly so for me mobile is very important

Answer:

Just a little bit. You should not be on electronics all the time. I know some people that are so addicted to there electronics that they won't even hang out with people. If you are at the point where you think about things other than school, friends, and family...you should think about getting off of your electronics and go play with a neighborhood friend outside, or have a sleepover! Your whole life should not count on your phone, iPad, or your laptop.

Explanation:

Hope this helps! No recorces included in this writing.

) The unsaturated hydrocarbons whose structures contain a carbon -carbon triple
bond are called ……..
a) Alkenes b) Alkanes c) Alkynes d) Alcohol

Answers

Answer:

C. Alkynes

Explanation:

Define the term ‘lower fixed point’.​

Answers

Answer:

The lower fixed point, or ice point, is the temperature of pure melting ice at normal atmospheric pressure. Hopes this helps.

Explanation:

can someone help me???

Answers

Answer:

heliocentric is when the earth and the other planets revolves around the sun.

Explanation:

I'm not sure about which one but I do know what heliocentric is.

19. Two waves traveling in opposite directions on a rope meet and undergo complete destructive interference.
Which of the following best
describes the waves a moment after the waves meet and coincide?
The waves no longer exist.
The waves continue unchanged.
The waves reflect and travel backward.
A single wave continues along the rope.
a.
b.
c.
d.

Answers

Answer:

B

Explanation:

the pair of elements with the most similar chemical properties are
a. Na and F
b. O and Kr
c. Ne and Ar
d. Mg and Cl

Answers

answer: i believe that the answer is

c

Select all of the mixtures:
oxygen
gold
trail mix
soup
air

Answers

Answer:

trail mix, soup, and gold

hope this helps

have a good day :)

Explanation:

Answer:

1: gold 2: trail mix because its a combo of MnM's nuts rasins and whatever else might be in it lastly soup there can be anything in soup

Explanation:

may i be marked brainliest

please answer this time question in do not send a link to an unknown website or you are getting reported.

Answers

(1) Use Newton's second law: The force F required to accelerate a mass m with acceleration a satisfies

F = m a

So the force needed to accelerate the lion-stretcher system is

F = (175 kg) (2 m/s²) = 350 N

(2) Average speed is defined as the ratio of distance traveled to the time it takes to travel that distance, so in this case the bus's average speed is

(280 km) / (4 h) = 70 km/h

(3) The vertical lines in the plot split up the distance function into 5-minute chunks. The one with the highest average speed is the one over which the distance changes the most. Roughly, the average speeds over each of the given choices is

• 0 to 5 min : (1500 m - 0 m) / (5 min) = 300 m/min

• 10 to 15 min : (3250 m - 2500 m) / (5 min) = 150 m/min

• 15 to 20 min : (3750 m - 3250 m) / (5 min) = 100 m/min

• 25 to 30 min : (4500 m - 4250 m) / (5 min) = 50 m/min

(4) Velocity is a vector, so it has both magnitude and direction. A car moving at constant velocity would be traveling at the same magnitude and direction. But a car on the circular track is constantly turning and changing direction.

What would happen if we do not eat body building food?​

Answers

Answer:

you would die and be dead.....

Explanation:

Answer:

You may suffer from muscle weakness.

If you want to build muscles, protein is the way to go.

This picture clicked by me
How's it​

Answers

Answer:

Hey dear

U are a Nice photographer

The pic I awesome.

wow that looks really cool! 9/10

Two cars of the same mass have different velocities. Which car has more momentum?

Answers

Answer:

The car with the higher velocity would have a more impactful momentum.

This important factor of survival for the coral reef is
a:symbiotic
b: abiotic
c: biotic
D:parasitic

Answers

Answer: biotic

Explanation:

How many joules are utilized when
warming 5g of steam from 100°C to 120°C?

Answers

Answer:

Q=mc(T2-T1)

Explanation:

Ti is the temperature

m is mass

c is specific heat capacity for steam

Q is heat, [Q]=J

How would doubling the mass of Earth affect the gravity we experience?​

Answers

The strength of the gravitational force between two objects depends on two factors, mass and distance. the force of gravity the masses exert on each other. If one of the masses is doubled, the force of gravity between the objects is doubled. increases, the force of gravity decreases.

5. What is the frequency of a sound wave when the speed of the sound is 340 m/s and has a wavelength of 1.21 m?​

Answers

Explanation:

v = f × /\

340 = 1.21f

f = 280.99Hz

Other Questions
How did France and Great Britain respond to economic downturns that began in the 1970 and 1980 The Declaration was written to provoke the British to war.TrueFalse Which of the ratios below is equivalent to 1:8? Select all that apply.A) 16:2B) 3:24C) 4:12D) 5:40E) 7:56 Which of the pairs (2, 3), (1, 2.5), (6, 1), or (2, 2) is the solution to the equation 4yx= 10? Draw a line tangent to the circle at the point (0, 4). Write an equation for this tangent line. Explain your work.PLEASE HELP Which of the following best describes the graph of the logarithmic functiongiven below? Which of the following best describes the Iditarod?AIt happens in very sunny weather.BIt only takes a week to complete.CIt is a long and difficult race.DIt requires people to eat gruel and mush. Easton needed to get his computer fixed. He took it to the repair store. The technicianat the store worked on the computer for 3.25 hours and charged him $196 for parts.The total was $342.25. What was the cost of labor, per hour? Help me find the answer Tan 0 and Cot O Please help! 20 points and brainliest :D Which of the following is a part of a land-based carbon cycle? determine length of RT A 1200 kg car and a 2400 kg car are lifted to the same height at a constant speed in a auto service station. Lifting the more massive car requires ____ work. need help i will give you thanks:) All of the following statements about exit in monopolistic competition are true, except: Select the correct answer below: When economic losses induce firms to leave the industry, demand for the original firm decreases. As long as a monopolistic competitive firm is earning positive economic profits, new competitors will continue to enter the market, Even though a monopolistically competitive firm may earn positive economic profits in the short term, the process of new entry will drive down economic profits to zero in the long run. In an environment with monopolistic competition, economic losses induce firms to leave the industry. A change in supply is illustrated by a movement along an existing supply curvetrue or false Read the passage and answer the question,According to the president, who is responsible forensuring equality for African Americans?This is an excerpt from a speech given by PresidentJohnson when he introduced the Voting Rights Act inCongressWhat happened in Selma is part of a far larger movementwhich reaches into every section and State of America. Itis the effort of (African Americans] to secure forthemselves the full blessings of American life.Their cause must be our cause too. Because it is not just[African Americans) but really it is all of us, who mustovercome the crippling legacy of bigotry and injustice.And we shall overcome.- President Lyndon Johnson, 1965the African American communityO Southern cities like Selmagovernment leadersall Americans In the process of photosynthesis, how do plants obtain the water, carbon dioxide, and energy they use for this process? Hailey is designing a new board game, and is trying to figure out all the possibleoutcomes. How many different possible outcomes are there if she rolls a fair die inthe shape of a pyramid that has four sides labeled 1 to 4 and spins a spinner with fourequal-sized sections labeled Red, Green, Blue, Orange? please answer if you know the answer