Find the area of a rectangle with a length of 10cm and a width of 7cm.

A.70cm
B.17 cm
C.17cm2
D.70cm2

Answers

Answer 1

Answer:

D

Explanation:

You would do 10*7 witch would be 70 then cm2 so the answer is 70cm2

Answer 2
The answer to your question is D so 70cm2 good luck

Related Questions

43. Why is the geometric structure of a molecule
important, especially for biological molecules?

Answers

Answer:

Structure is particularly important for biological molecules because a slight change in the structure of a large bio molecules like nucleic acids, proteins, enzymes, carbohydrates and lipid molecules can completely destroy its usefulness to a cell and may even change the cell from a normal one to a cancerous one.

Answer:

A slight change can change the molecule’s usefulness to the cell.

Explanation:

What effects do mutations have? Check all that apply.

Answers

A mutation in DNA can be dangerous if it is a deletion!! Hope this helps you out!!! Can u please mark me brainliest? Thanks!!! :)

Answer:

A,C,E,F

Explanation:

what do you think would be a good science fair project for an 8th grade advanced class?​

Answers

Answer:

maybe something about planets or the solar system and they have to make them

Explanation:

Answer:

create a rainbow of flames or build an infinty mirror

Explanation:

who Organized elements into four groups based on propertie

Answers

The answer to this is Mendeleev

What is a Physical reaction?

Answers

a reaction to something physical

Na + HCI → H2 + NaCl​

Answers

Answer: 2Na + 2HCl —> H2 + 2NaCl

If I walk 10 meters down the hallway, then 2 meters into a classroom, what is my total distance walked in meters(write the number)

Answers

12 meters in total because if u add those two number u get 12

Answer:

12 meters

Explanation:

Explain why the gamma rays do not bend.

Answers

they are electrically neutral, they are not deflected by magnetic fields

6. How is energy transferred to the earth?I

Answers

Answer:

Energy is transferred between the earths surface and atmosphere.Energy move place to place

Use the picture to answer the question.
Name at least three physical properties of the bowling
ball.

Answers

Answer:

The physical properties is hardness shape and color, I choose hardness because I have grabbed bowling balls before and they are very hard well there could be different types of bowling balls made of different things but I have never seen one or toughed a bowling ball that is not hard. Another physical property  I chose for the bowling ball was shape, The reason I chose shape was because the bowling ball is circle, the actual name for a 3-D circle is sphere. The last physical property for a bowling ball is color because mostly all bowling balls have color for example the one in the picture it is red with a little bit of pink, there is many different bowling balls that have different color different hardness but NOT different  shape. That is the physical properties of a bowling ball.

Explanation:

Hope this helps everyone who needed help with this :)

which sample is a pure substance?
a. a test tube of zinc oxide
b. a container of zinc and oxygen
c. a flask of pond water
d. a jar of soil

Answers

Answer:

The answer is A. Test Tube of zinc oxide

The number of protons in an element can be found by looking at the
symbol
atomic number
O average atomic mass
O name

Answers

Answer:

atomic number if it's a answer

Answer:

I think its the average atomic mass.

Explanation:

A basketball weighs approximately 1.35 kg. What is this mass in grams (g)?

step by step

Answers

Answer:

1350 g

Explanation: just add a 0

Science investigation skills

(I need to have 5 answers )


Answer 1.

Predict



Answer 2.

Use variable


Answer 3.

Plan and conduct investigations

Answer 4.
Draw conclusions


Answer 5.

Hypothesize


Answer 6.

Measure


Answer 7.

Classify and order




Answer 8.

Record and display data


Answer 9.

Use time and space relationships




Answer 10.

Use numbers

Answers

Answer:

Explanation:

-------Choices  ---------------

Predict

Use variable

Plan and conduct investigations

Hypothesize

Measure

Classify and order

Record and display data

Use time and space relationships

Use numbers

=================

Selection:

These are in approximate order:

Hypothesize:  Build an explanation of the observation.  The hypothesis should be done after a thorough review of existing information.  Library database searches and researcher interviews are suggested.Predict:  prediction of what would happen if the explanation were correct.  E.g., If an atom is homogenous and has no internal structure, then bombarding it with with neutrons will result in most neutrons going right through the atom, and none would be reflected backwards.

Plan and conduct investigations:  Design experiments that test the hypothesis.  E.g., see if any neutrons are reflected backwards.  If they are, the hypothesis needs to be changed.

Measure:  Do the work.  Calibrate the equipment and record everything.

Record and display data:  Publish the results and conclusions for peer review.  Seek other's input in order to generate general agreement that the data, procedure, and conclusions are warranted.

===

Use numbers?  Nah.  Not if they are not required to reach a conclusion.(e.g., the precipitate will be pink or the reaction will stink).

Use Time and Space Relationships:  Yes, but only if the hypothesis depends on them.

Classify and Order:  OK, especially if you are a biologist, but not always necessary.

Use variable:  usually, but what and how depends on the experiment.

Blame:  Place blame on the lab partner (Just kidding).

Which statement best describes a physical change?

Changes can occur to certain chemical properties of the substance, but the overall shape of the substance will remain the same.
Changes can occur to certain physical properties of the substance, but the overall shape of the substance will remain the same.
Changes can occur to physical properties of a substance, but the chemical composition of the substance remains the same.
Changes can occur to chemical properties of a substance, but the chemical composition of the substance remains the same.

Answers

Answer:

Changes can occur to physical properties of a substance, but the chemical composition of the substance remains the same.

Explanation:

Answer:

Changes can occur to physical properties of a substance, but the chemical composition of the substance remains the same.

Explanation:

im smart

A chemist is studying an unknown substance. He can break it into its elemental components only by using chemical means.

Based on this observation, how should the unknown substance be classified?
impure substance
solution
mixture
pure substance

Answers

Answer:

C, Mixture

Explanation:

Answer:

the correct answer is actually D pure substance

Explanation:

If you worked at a job for 9.00/hour, what type of correlation is the number of hours worked and your take-home pay?

Answers

Answer:

There is a linear correlation between the number of hours worked and take-home pay. And more exactly, a direct proportionality. [tex]C = 9\cdot t[/tex]

Explanation:

From statement we deduce that amount of hours worked ([tex]t[/tex]) (Independent variable, measured in hours) is directly proportional to take-home pay ([tex]C[/tex]) (dependent, measured in monetary units), since proportionality ratio is constant and, therefore, there exists a linear correlation between both variables. That is:

[tex]C \propto t[/tex]

[tex]C = k\cdot t[/tex] (Eq. 1)

Where [tex]k[/tex] is the proportionality ratio, measured in monetary units per hour. If we know that [tex]k = 9\,\frac{m.u.}{h}[/tex], then the resulting correlation is:

[tex]C = 9\cdot t[/tex]

There is a linear correlation between the number of hours worked and take-home pay.

PLEASE HELP I'LL GIVE U BRAINLIEST

Answers

Answer:

files  

Explanation:

i had to answer the same question

HELP ASAP WILL MARK BRAINLIST The diagram below shows what happens during the formation of a compound. The diagram shows two substances joining together to form a third substance.



Which of these substances is a compound?

Group of answer choices

C

A

B

Both B and C

Answers

Answer:

C is the answer..

The equation is showing how it is formed, so the answer is on the other side of the equal sign.

There are two types of chemical compound one is covalent compound and other is ionic compound, covalent compound formed by sharing of electron and ionic compound formed by complete transfer of electron. Therefore, diagram C shows the final compound.

What is chemical Compound?

Chemical Compound is a combination of molecule, Molecule forms by combination of element and element forms by combination of atoms in fixed proportion.

An ionic compound is a metal and nonmetal combined compound.  Ionic compound are very hard. They have high melting and boiling point because of strong ion bond.

The diagram below shows what happens during the formation of a compound. The diagram shows two substances joining together to form a third substance. Diagram C shows the final compound.

Therefore, diagram C shows the final compound.

To learn more about chemical compound, here:

brainly.com/question/26487468

#SPJ2

PLEASE ANSWER
A train travels 200 miles at an average speed of 50 miles per hour. How long does it take the train to travel this distance?

Answers

4 hours. Divide 200 by 50

Look for other families of ions in the table that follow a pattern similar to that of the polyatomic chlorine ions. Then complete the statement to describe what you find. Select the correct answer from each drop-down menu. Families of ions that contain hydrogen pattern similar to that of the polyatomic chlorine ions. then complete the statement to describe what you find ​

Answers

Answer: Families of ions that contain NITROGEN, SULFUR, and CARBON follow a pattern similar to that of the polyatomic chlorine ions.

Explanation: Plato

Answer:

Answer: Families of ions that contain NITROGEN, SULFUR, and CARBON follow a pattern similar to that of the polyatomic chlorine ions.

Explanation: Plato

Elements in group 16 of the periodic table usually

Answers

Answer:

The oxygen family, also know as the chalcogens, consists of the elements found in Group 16 of the periodic table and is the main group elements.

Elements: oxygen, sulfur, selenium, tellurium and polonium.

Hope this helps! :D

What did you find out from this investigation? Be thoughtful in your answer.

Answers

What’s the invistagation about????

How many days will pass between a new moon and a full moon?

Answers

Answer:

30

Explanation:

im smart

Answer:

The longest duration between full moon to new moon (or new moon to full moon) lasts about 15 days and 14.5 hours, while the shortest duration between full moon to new moon (or new moon to full moon) lasts only about 13 days and 22.5 hours. New Moon appears higher on summer solstice than on winter solstice.

Which roller coaster
car has the least potential energy due to gravity

Answers

Answer:

the roller coaster car with the least potential energy would be the one at the bottom of the roller coaster

Explanation:

Hope this helped

Which of the following is always involved in a scientific inquiry? A. conducting experiments based on scientific questions B. guessing what would happen instead of doing experiments C. knowing the correct answer before you start D. conducting surveys to ask people's opinions on various subjects​

Answers

Answer:

I'm pretty sure it's a I'd its wrong I'm sorry

Answer:

developing solutions to questions through scientific research

Explanation:

Scientific inquiry involves coming up with questions based on observation and reasoning, conducting experiments based on scientific questions,and developing solutions to questions through scientific research.

The Periodic Table of elements is arranged by:
O atomic mass
O number of neutrons
O number of electrons
O atomic number

Answers

Answer:

atomic number

Explanation:

Answer:

number of electrons and number of neutrons

Structural differences between different chemicals can be represented in models of the particles. Which drawing best represents a compound?

Answers

Answer:

this is about that.

Answer:

C.

Explanation:

what is extremely lightweight and exists in a cloud orbiting the nucleus

Answers

Answer:

atomic particles

Explanation:

electrons are extremely lightweight and exist in a cloud orbiting the nucleus period the electron cloud has a radius 10,000 times greater than the nucleus according to the Los Alamos national laboratory.

Electrons is the answer. Hope that helped

How many atoks are in each element sampke? 16.5 g Sr, 26.5 g Fe, 7.73 g Bi, 36.4 g P​

Answers

Answer:

16.5gm of Sr(strontium) has 1.12 x10^23 atoms...26.5 gm of Fe(iron) has 2.84 x10^23.... 7.73 gm of Bismuth has 2.22 x10^22.....36.4gm of  Phosphorus has 7.06 x10^23

Explanation:

by the formula,

                          Moles=[tex]\frac{no of atoms}{Avogadro's No}[/tex]

you could find moles by

                                      Moles = given mass/atomic mass

Put the value of moles and multiply it by Avogadro's no you will get the following answers

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