10th Grade

10th grade
a solution of 30 percent by weight has a density of 0.96g/mL at 25 degree celcius.find the molarity and molality.

10th grade
A metroid entering Earth's atmosphere has a speed of 70.0 km/s and a kinetic energry of 2.56 X 10^15 J. What is the mass of the meteroid?

10th grade
A rational number is ____ a real number. a. always b. never c. sometimes its always ???????

10th grade math
Which expression repeersents the phrase'' twice the quotient of 50 and the sum of a number y and 8?''

10th grade
i want to make an project on safer construction practises for tsunami only want 10questions on this topic


10th grade social studies
i have to make a project on safer construction practises for flood help me but want only 10 questions on this topic

alg
The 10th grade raffle sold 127 tickets. If they award 1st and 2nd prize, how many different pairs of winners are possible? a) 16,129 b) 254 c) 16,002 d) 8,001 the answer i picked was c

10th grade
compare and contrast the two prevailing winds that blow over Afica in June and September?

10th grade
Bert viewed the hot dog provincial, beliving that to eat such a disgusting food was beneath him

10th grade algebra 2
the third root of 3, times the square root of 9

10th grade
how can i make an easy working model in physics for class 10 holiday home work

chemistry!!! /10th grade
How many molecules of hydrogen are produced if 13.05 g of Zn reacts with excess hydrochloric acid equation Zn plus HCL equals ZnCl2 plus H2?

10th grade
Triangle ABC is an equilateral triangle.AD=10 What is the length of CD? Give your answer to the nearest whole number.

10th grade
a rhombus has a perimeter of 44 centimeter and a diagnol 12 centimeters long. wat the area?

10th grade
the circle is circumscribed by the pentagon as shown (not drawn to scale). If QZ=10, YX=9, XW=9, UW=17, and SU=10, find the perimeter of the pentagon.


10th grade
The addition of which nitrate salt will cause a decrease in the concentration of I(aq)? Pb(NO3)2 Ca(No3)2 LiNo3 KNo3

10th grade Biology
Why is diffusion insufficient to meet the oxygen requirement of multicellulars like us?

Geometry
I have a project due this week and I have to make a board game, so I need 15 questions about right triangles. I already have about 7, so is there a website with some examples? This is 10th grade geometry.

10th Grade Honors Chemistry
volume of 8.00 grams of hydrogen gas at 32.0 degrees celcius and 1.50 atm

10th grade Math
Triangle POB has vertices: P(0 , 4) O(3 , 0) B(3, 0). Determine the orthocentre of the triangle.

10th grade
What were the effects of the Balkan Wars that led to the Revolution during the Age of Nation States? (OTTOMAN EMPIRE)

10th grade
What were the complications of decrees in the Ottoman Empire during the Age of Nation States?

10th grade chemistry
I need help on solving: How many grams of water are obtained if 487.8 grams of carbon dioxide are formed?

10th grade, spanish three
how would i answer this question with direct object pronoun? quien te habla por la telefono todos los dias?

10th grade
I need to unscramble the letters to this word from the renaissance. The letters are NWIHZGLCIRULI


10th grade
A piece of metal has a mass of 200 g and a volume of 40 cm3. What is its specific gravity? What is its density? g/cm3

10th grade
Analogy: despair:hope::permanenace______________ Answer Chocies... transience acquisition chauvinism infinity

10th grade Literature
Can someone tell me the Simularitys and Nonsimularitys of these too books Baldwins account of the Titanic and Rosenthal's avvount of his visit to auschwitz, Please and thank you

10th grade
How did early labor unions in the United States differ in their organization and in the methods they used to achieve their goals?

10th grade
What element, found in all plants and animals, is used by scientists to determine approximate dates for an artifactâ€™s age?

american lit. [[10th grade]]
i need to write an essay about how holden caulfield from the catcher in the rye is fascinated with childhood and innocence. what can i include as examples for that?

10th grade social studies
How does trade and offering cominly diverse choices INCREASE diversity? Thanks Ms.Sue for answering my last question! ^^

10th grade social studies
I don't get what "What message do these 2 sources present about the impact of globalization on identity?" means..

10th grade algebra
the volume of a pyramid with a rectangular base is v=1/3LWH. find W if V=500 L=15 and H=4. a) W=25 b) W=20 c) W=18 d) W=15

10th grade algebra
kim had a meal at the downtown diner which cost $14.98. if she tips 15%, how much tip should she leave? round to the nearest cent.


10th grade algebra
How many kg of pure salt must be added to 8 kg of a 30% solution to obtain a 35% soltution? Round to the nearest tenth.

10th grade
a 0.25kg ball is traveling at a velocity of 45.0m/s. find the frequency at which the ball osicillates

10th grade
On very hot days or when you are exsercising, it is better to drink tap water than sugary drinks. Explain why.

10th grade
Find the coordinates of the centroid of the triangular metal part with verticies at A(12,18) B(18,6) C(3,12)

10th grade english( the kite runner)
What is a good example of assonance and alliteration from the the runner iin exact quotes?

10th grade math
How do I factor 4x^212x+8? so far I took out the Greatest Common Factor. 4(x^23x+2) What next?

10th grade english
what is the climax in the book the bass the river and shelia mant by w d wenthrell

10th grade Pre APworld history
WHAT TYPE OF GOVERNMENT DID SHANG HAVE DURING 8000 B.C.E600 C.E

10th grade
How many unit volume cubes of 1cm squared will fit into a 3cm x 4cmx 10cm shape?

10th grade punctuation
Ed and Jim's essays were both titler Kwazaa: A Special Time for African Americans.


10th grade Physics
What experiment(apparatus can be made) can be used to determine the relationship between period and frequency of vibration?

10th grade english
Ok, I need help on the book "The Road" By cormac McCarthy. I need to know 3 themes, the plot, the setting and how it affects the story, and Literary devices used in the story! Thanks so much!

10th grade american lit.
Do the letters "UDM" stand for "Usage Determines Message?"

10th grade
what characteristics of life do viruses have?describe the ways in which viruses differ from living cells.

10th grade
what kinds of clues can fosslrs provide about the past , inclding climate ,what organisms ate ,and the enviroment in which they lived?

10th grade Living Environment
The unknown genotype of an individual with a dominant phenotype can be determined using what? Is it a test cross???? Please help!

10th grade CIVICS!!!!
being informed n getting involved means people communicate about and participate in important issues... i need a picture that represents or fulfills this. thanks

10th grade
I HAVE TO WRITE AN ARTICLE ON " SOCIAL IMPACT OF THE DIGITAL AGE " PLEASE TELL ME SOME BASIC POINTS ABOUT THIS ARTICLE .

10th grade Living Environment
Why would someone choose to propagate a particular plant for commercial purposes by using vegetative structures instead of seads?

10th grade chemistry
How many molecules of Hydrogen gas formed when 48.7 grams of sodium added to water


10th grade math
Factor by Grouping. PLEASE SHOW ME THE STEPS! 1.) 6x221xy+8xz28yz just to make it clear,the 2 infront of 21 is actualli an Exponent 2. 2.) x2+5x+7x+35

10th grade Living Environment
What causes an increase in the diameter of woody dicot stems?

10th grade Living Environment
Explain the roles of helicase and polymerase in DNA replication.

10th grade History
What were Caesar's reasons for attacking Gaul? (Be Specific) What was his "Campaign against the Helvetti" and what did he do during his years in Gaul?

10th grade Chemistry
A chemial test to distinguish between iron(Fe) and iron sulphide(FeS)..without using a magnet

10th grade
Assign oxidation numbers to each atom in the following compounds: HI, PBr3, GeS2, KH, As2O5, H3PO4 (the numbers should be subscripts)

10th grade English
Persuasive writing. How to write a persuasive paragraph about women choosing their own destiny to a person of the jewish faith

10th grade
bob accidently falls out of a helicopter that is traveling horizonally at 160m/s. he plunges into the water below 4s later. assuming there is no air resistance, what is the horizontal distance he travels while falling

10th grade/ business studies and communication sym
difference between formal and informal mettings?

10th grade
The ratio of the measures of three sides of a triangle are 1/2:1/3:1/5, and its perimeter is 6.2 centimeters. find the measure of each side of the triangle


10th grade Mythology
what would be placed in Sir Lancelot's and Eragon the dragon rider qualities for;bravery,sense of justice and consideration for others. If know please tell me THANK YOU

10th grade
A car crashes into a wall a 25m/s and is brought to rest in 0.1s. Calculate the average force exerted on a 75kg test dummy by the seat belt. What is the formula to solve this problem.

10th grade
how does the individual influence world events?give a current event example

10th grade
Whatis the difference between the Hudson Bay Lowlands and the Arctic Lowlands?

general
Some states have high school starting at 9th grade while some start only in 10th. so when are the kids ready for AP classes? is this school dependent?

10th grade
Carlos invested $10,000. part ot 5% and the rest at 6%. His total annual income from these investments was $575. How nuch did he invest at each rate?

10th grade math
solve each equation for y. do x and y vary directly? if so indentify the constant of variation. 1.4x=5y 2.2x+3y=6

10th grade
how does steinbeck prapare the reader for curleys wifes death by leenie

10th Grade English
what is the central human tradgedy of the Iliad? what is its most important theme?

10th Grade Math
Why is it important to understand rational exponents? How does it work with radicals?


10th grade
How do I represent the following to 3 significany figures and express the answer in SI units using an appropriate prefix? or Can you give me an example? 45 320 kN

10th grade
Engineering Foundations 2 Calculations converstions How do I put this combination in the correct SI form? MN/ks2 kN/ms

10th grade
WHAT GOES AFTER GEIORGE, THOMAS, ABE, ALEXANDER IN A PATTERN THE NEXT TWO NAMES? MATH:GEOMETRY

10th grade
wats a abstract noun for these: 1.quaterback 2.scream 3.perfume 4.pepper 5.bruise 6.dog 7.binoculars 8.teeth 9.lamb 10.book

10th grade math
1.548937075 x 10 to the 12th. round the number to 3 significat figures. I thought I would respost this because the other one was getting confusing

10th grade math
How would you figure out 1.45386759 x 10 to the 12 and round to the significant figure? thanks

Math
I am tring to finish my 10th grade. I got hurt last Jan. 2007. And was force to quit public school. In short of every. I started online schooling and I have to write an essay for a final grade in Math compare three college to each other and make a graph telling which school ...

math
On Wednesday you drove from home to work at 65 mph and got there in 28 minutes. On Thursday you drove at 78 mph. Round answers to nearest 10th. Use: R1T1=R2T2 (double click this to see clearer) Round to the nearest 10th and Use Unit Abbreviations for Units. How long does the ...

math
At the end of the 8th grade,Lin was 3.6 feet tall.Over the next two years he grew 1.2 feet tall. How tall was Lin at the end of the 10th grade

Algebra II
If one leg of a right triangle is 5 times the square root of 3 centimeters, and the hypotenuse is 2 more than the other leg, what is the length of the other leg? While it does say please show my work, I literally have NO idea how to solve this, and this is one of my last ...


math
The students at Millerville High School were surveyed about their favorites type of music. The results are in the table. to the nearest whole percent, what percent of the students who chose country as their favorite are in 9th grade? a.63%,b.39%,c.24%,d.20% Favorite type of ...

chemistry
Dr Bob, Thanks for your help. Ihad googled for 3 hours before asking you. For future reference, if anyone asks this question again, 10th grade chemistry, I found a video on You Tube that makes it easy to understand. It is, The Sci Guys, Ph indicator, acidbase indicator. ...

math
The 5th and 10th terms of A. P are  12 and 27 respectively. Find the A. P and its 15th term. (B) The first three terms of an A. P are x and the 10th term.

English
How many sentences should a short essay have? I need to write a short essay for my world history class...I'm in 10th grade btw

10th grade physics
What speed must a bucket of water have to complete a circle with a radius of 1.2 m without spilling any water? My answer: this seems to be an incomplete question, not solvable without the weight of the bucket

algebra
how many tiles 10cm by 25cm on each side is needed for a bathroom 8m by 10m? I need help on how to solve it... I learned how to do this in 8th grade but I'm now in 10th and I forgot how to do it. I'm preparing for the highschool exit exam and I need to do this problem but the ...

math
In new Your a taxi costs 72 cents for the first 1/10th of a mile and 15 cents for every additional 1/10th mile. How much does it cost to drive 6 miles? Set up and solve? I do not understand how you got this answer...can you explain? .72+ .15(6.1).1 = $9.57 When I work the ...

10th grade Science
Explain how a drug sits on acetylcholine receptors will affect muscle function? Is it because the drug would act as a blocking agent to prevent the receptors from gathering information on what to do?

10th grade Science
Explain, physiologically, how you would decide to use ice or heat on an injury? My book doesn't have any good info on this question. Is there a reputable website or article to get info to answer this question?

math
ok i have 10th grade math next year and i don't even know half the stuff for this year and its summer brake and im worrying about math..what do i do


c++
Write a program that asks the user to input a grade that he or she received on an exam. The grade is an integer from 0 to 100 inclusive. The program should convert the numeric grade into the equivalent letter grade. Do the conversion by using a function Letter_Grade () that ...

10th Grade PreCalc
The demand equation for a handheld electronic organizer is... P=5000(1(4/4+e^.002x)) Find the demand x for a price of (a) P=600? So strange. Thx for help

Chemistry
How is Surface catalyst(heterogeneous) and homogeneous catalyst different? I'm in 10th grade chemistry and I don't understand it.

10th Grade Algebra
Please help me with these factorise algebra questions!!! 1. 9c squared + 30c + 25  4d squared 2. 12 + 89  4a squared 3. 5x squared + 27x  10 4. If A= 15x squared  20x +11 and B= 1 + 9x+ 5x squared, then AB when factorised is...

5th math
what is the least common multiple (LCM)for 15 and 45? There are 16 girls in a class of 36 student. which expression could be used to determine the number of boys (b) in the class? please! help i think this too hard for 5th grade math. this suppose to be for 10th or college ...
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