# Posts by chelsea

Total # Posts: 830

Mr.L would it be: To find the mean you would measure the size of 4 students heads, add the calculations together and divide that by 4?

Mr.L is that correct?

Would it be: To find the mean you would meausure the size of 4 students heads, add the calculations together and divide that by 4?

Explain how to find the mean hat size of four students. I don't understand this question, could I get some help?

Thank you

The mean of five numbers is 60. Four of the numbers are 50, 60, 40, and 80. What is the fifth number.

Math
Why multiply by 1.0835?

Math
Tai went to a shopping mall. He spent \$25.75 on a chirt, \$15.49 on a hat and \$9.95 on a poster, before tax. tax was 8.25% on all purchase. What was the total cost of tai's purchases, including tax? How do I do this?

formal geomerty
A person in a small boat sights the top of a 40-foot lighthouse found on a cliff. The angle of elevation to the top of the lighthouse is 50.2 degrees. If the distance from the base of the cliff to the boat is 75 feet,what is the height of the cliff?

Thank you
Thank you Mrs.Sue

What is the greatest remainder if the divisor is 4?

Social Studies
How did the French and Indian War change Pennsylvania?

math analysis
is (x^2-5) a factor of x^4-3x^2-1?

physics
when a horizontal force of 300N is applied to 75kg crate, it slides on a level floor opposed by a force of friction equal to 95N. what is the acceleration of the crate?

music instruments
A mandolin is a musical instrument in the lute family (plucked, or strummed). It is descended from the mandore, a soprano member of the lute family. It has a body with a teardrop-shaped soundboard, or one which is essentially oval in shape, with a soundhole, or soundholes, of ...

music
well he was a child prodigy because he learned music at a young age and was succelssful and genious just listen/ take a look at his music. he also created various works for different groups of instruments such as songs only for a few woodwind instruments called chamber music.

Vocabulary
How could i use synthetic in a sentence?

AP Chem
CorrecT!

Math
at what temperature is the number of degrees celsius equal tio the number of degrees fahrenheit??

social studies
what are the steps toward democaracy of the early English settlers?

Geography
well i know that one of the answers is the Arizona Caridinals

Grammar
the directions are"Write 3 adverbs to describe each verb noted. Do not use a word more than once." the words are run,dance,tripped,fly,play,jump,read, sing,growl,laugh,write,and eat.What are the answers?

music
time signatures, note divisons, and counting out beats and subdivisions of beats.

Science
1. Which statement about subatomic particles is NOT true? (1 point) Protons and neutrons have almost the same mass. Protons and electrons have opposite charges. Unlike protons and electrons, neutrons have no charge. Protons and neutrons have the same charge. 2. Which of the ...

music
well the pentatonic scale duh? its used in memorizing music and its the first scale kids know. there is a kids song that uses the pentatonic scale but i cant think of it right now.

music
all it is is an extension of th staff.

Vocabulary
How could I use the word charecter in a sentence? Charecter as in a letters characters. And how could I use the word calligrapher in a sentence? And writetecher, pleas don't answer my questions because your not giving me any help at all. And I am a 4th grader.

Vocabulary
How could I use the word calligrapher in a sentence?

Vocabulary
How could I use the word Character in a sentence? Character as in a letters charecters

Vocabulary
How could I use the word charecter in a sentence? Charecter as in a letters charecter

math
y = x ^ 3

Vocabulary
how could i put identity in a sentence?

Vocabulary
how can i put heritage in a sentence?

Vocabulary
How could I put consonant in a sentence?

Vocabulary
How could I put translate in a sentence?

chemistry
How many gallons of distilled water must be mixed with 50 gallons of a 30% alchohol solution to get a 25% solution?

college algebra
the answer is supposed to be 4 but i do not know how they got it. Solve for x. [x-(1/x)]/[1+(1/x)]=3

college algebra
[x-(1/x)] / [1+(1/x)] = 3

Government
I need to write an essay about the best form of government is, and I haven't a clue how to do it.

calculus
identify the conic section. Write in standard form and graph. 5x^2-6y^2-30x-12y+9=0

chemistry
yes

Critical thinking
Could someone please help me I do not know how to figure these problems out: write the names for the compounds as ionic, polar covalent, or non-polar covalent. SO3/CaO/I2... write the names for the compounds with these chemical formulas: Ag2SO4/ Lif/ CS2/ and Ca (OH)2

chemistry
thank you for your help it is greatly appreciated.

chemistry
I need some help with afew questions that I have and I have to go to bed soon for school tomorrow. how are molecules and polyatomic ions similar?

science
If an atom of X reacts with an atom of X what kind of bond forms?

science
Ddraw an electron dot structure for a compound of fluorine and Z?

science
what does fluorine ion have in common with a neon atom and a sodium ion?

science
what would the formula be for a compound containing chromium (III) ions and ions of element 27?

science
element Q forms compounds with the element X and with element Z write the formulas for these 2 compounds?

chemistry
how are molecules and poly atomic ions similar?

8+11+31=50 for 3 weeks and to get 150 cans you would need to collect for 6 more weeks.

homework
what about inventing an electronical way to catch rodents?

Math
The diameter of a cylindrical can of motor oil is 3.5 inches (in). The height of the can is 6.5 in. Approximately how many cubic inches of oil will the can hold?

Physics Help Requested!
QUESTION What is the change in energy of the hydrogen atom as the electron makes the transition from the n=3 energy level to the n=1 energy level? ANSWER xxx eV

Calculus
How do I take the integral of (9t^3 - 3t^2 + t)/3t?

Physics -Relativity
Question: If a muon is traveling at 70% of the speed of light, how long does it take to decay in the observer's rest frame (i.e., what is the observed lifetime of the muon)? Answer: =??? us

Math
How could you use mental math to find 3x122?

Math
How could you use mental to find 5x306?

Math
Yes

math
YEs

Physics
I tried this and it said it was incorrect. Is there another way?

Physics
Given: Two particles are created in a high-energy accelerator and move off in opposite directions. The speed of one particle, as measured in the laboratory, is 0.580c, and the speed of each particle relative to the other is 0.920c. Problem:What is the speed of the second ...

physical health class
wats it called when u get high n u freak out

calculus
I have three questions I'm having a terrible time with: 1)Find, if possible, the absolute maximum value and where it occurs for f(x)=ln(xe^-x) on (0,infinity). 2)Find the value(s) of "c" guaranteed by the Mean Value Theorem for the function f(x)=ln(x^2) on the ...

Calculus (improper integrals)
the integral from 0 to lnx of lnx/(x^1/2) thanks!

algebra
complete the square for the equation x^2-3x+____ how do I figure out what goes there

shakespeare
What is Shakespeare refering to when he says "O thou weed, Who art so lovely fair and smell'st so sweet That the sense aches at thee" in Othello? I havent read this, but I was wondering, is he talking to a person, or a plant?

biology
What are the four basic subunits for each of the four major categories of biochemcials? Better yet... what are the four major categories of biochemicals?! Please help, I can't find the answer anywhere!

SCI
challenges using and managing renewable energy sources, could be making sure that they aren't over used, and that they have enough time to reproduce themselves before we again divulge. For example, trees are cut down to create things for human use. If we don't replant ...

forms of words
Peripheral (n)(1966) A device connected to a computer to provide communication (as input and output) or auxilaray functions (as additional storage) - Merriam Webster Dictionary

inverse of y=ln(x)+4 how would i do this?

thanks

What is the invers of: y=2log(x+1) and please explain this to me..not just an answer.

algebra
What is the invers of: y=2log(x+1) and please explain this to me..not just an answer.

chemistry
Using calories, how much heat will 32 grams of water absorb when it is heated from 25 C to 80 C?

algebra
thanks!

algebra
thanks, but how do i solve them?

algebra
1. logx+log(x+48)=2 14.log50+log(x/2)=2 23.log72-log(2x/3)=0 Could someone please explain to me how to solve these?

Stiochiometry
well.... ive got reallly no clue, so anything u say wld help!

Stiochiometry
Carbon dioxide is released into the air from the combustion of octane (C8H18). How much octane will you need to get 5.00 moles of carbon dioxide? What is the mass of the octane?

social studies
What is the name of a group of officials who make rules or laws?

history
thanks!

history
What was the Columbian exchange and what impact did it have on the Old and New worlds? I left me history book at school...

spanish
preocuparse darse prisa ok what do they mean and would i have to change them if i say like: por la manana no olvidarse de darle de comer al perro??

english/quote
o ok i see going for the other sides point of view hmmm.... i like it thanks love this program!!

english/quote
thanks but i was trying to apply it to the war on terrorism and the different ways people think about it.... So maybe i can say that some people beleive that God knew this would happen and he has already put out a plan to end/not end the war?? idk im soo tongue tied

english/quote
"human beings in their thinking, feeling and acting are not free but are as casually bound as the stars in thier motions." -Albert Einstein ok i was wondering what this means...maybe that humans follow a certain path of the people before them? idk please help thanks

chemistry
Hey, I am having a real hard time getting the answers to the problems. Any help would be greatly aprreciated! 1. When 11 mL of a solution containing 2.9 M AlBr3 is diluted to 33 mL, a dilute solution is formed. What is the Br- concentration in 25 mL of the dilute solution? 2. ...

Chemistry
THERE IS NOTHING WRONG WITH ME!!!!!!!!

Chemistry
ADAM IS MEAN BECAUSE HE THINKS THAT I CANT DO THIS AND IT REALLY HURTS MY FEELINGS. I JUST WANT TO GRADUATE AND GO TO COLLEGE AND SPEND THE REST OF MY LIFE WITH HIM AND MAKE HIM HAPPY. I LOVE YOU BABY

Chemistry
When I listen to my teacher explain things i get headaches and I cant concentrate, I just put dots everywhere on the lewis Dot Structure because its funny!!

lit
ok thank you

lit
We are learning how to put the beliefs and actions of the people during the Salem witch trials in todays terms and i used the war on terrorism...would that be the right idea?? maybe because we are trying to find the poeple that are differant than us &that after 9/11 people def...

spanish
o ok o gosh im sorry i had a major blonde moment

spanish
i mean how owuld i say ( so , i went to)

spanish
so that makes no sense lol how would i ( so i went to )

spanish
ok the question is y tu? adonde fuiste por la noche? and i have to use (ir/oficina de correos/cerrada/cafe)

spanish
what does fui a la oficina de correos cerrada cafe mean?? and does it make sense>?

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