Sunday

December 4, 2016
**Elementary mechanics**

A force of 2i+7jN acts on a body of mass 5kg for 10 seconds. The body was initally moving with constant velocity of i-2jm/s.Find the final velocity of the body in m/s, in vector form. (a)5i+12j(b)12i-5j(c)10i-7j(d)7i+10j

*Sunday, July 14, 2013 by jane*

**Elementary mechanics**

(Q1) 2 forces act on a point object as follows: 100 at 170 and 100 at 50.Find the resultant force (a)110N at 50 (b)110N at 100 (c)100N at 110 (d) 100N at 50 (Q2) given 3 vectors a=-i-4j+2k,b=3i+2j-2k,c=2i-3j+k,Calculate a-(b-c) (a)-6(b)6(d)9(d)-9 (Q3)The resultant of ...

*Friday, July 12, 2013 by david*

**elementary algebra**

(3b+1)^2=16

*Thursday, June 6, 2013 by mary*

**Statistics**

In an elementary school, 25% of children wear glasses. Suppose that a random sample of 64 children is selected. Find the mean number of children in the sample who wear glasses. Round your answer to the nearest integer.

*Sunday, June 2, 2013 by Sarah*

**Statistics**

In an elementary school, 25% of children wear glasses. Suppose that a random sample of 64 children is selected. Find the mean number of children in the sample who wear glasses. Round your answer to the nearest integer.

*Sunday, June 2, 2013 by Sarah*

**Statistics**

In an elementary school, 25% of children wear glasses. Suppose that a random sample of 64 children is selected. Find the mean number of children in the sample who wear glasses. Round your answer to the nearest integer.

*Sunday, June 2, 2013 by Sarah*

**Statistics**

In an elementary school, 25% of children wear glasses. Suppose that a random sample of 64 children is selected. Find the mean number of children in the sample who wear glasses. Round your answer to the nearest integer.

*Sunday, June 2, 2013 by Sarah*

**Statistics**

In an elementary school, 25% of children wear glasses. Suppose that a random sample of 64 children is selected. Find the mean number of children in the sample who wear glasses. Round your answer to the nearest integer.

*Sunday, June 2, 2013 by Sarah*

**English Pls Writeacher Help Me by checking my work**

write a news story in inverted-pyramid style. Begin your story with a summary news lead of no more than 20 words and then write a full story using inverted pyramid style. Using the scenario below. A home at 2481 Santana Avenue was burglarized between the hours of 1 p.m. and 4 ...

*Thursday, May 30, 2013 by Mary*

**English (Help Me, Help Me,Please Somebody Help Me)**

write a news story in inverted-pyramid style. Begin your story with a summary news lead of no more than 20 words and then write a full story using inverted pyramid style. Using the scenario below. A home at 2481 Santana Avenue was burglarized between the hours of 1 p.m. and 4 ...

*Wednesday, May 29, 2013 by Mary*

**English (Help Me, Help Me,Please Somebody Help Me)**

write a news story in inverted-pyramid style. Begin your story with a summary news lead of no more than 20 words and then write a full story using inverted pyramid style. Using the scenario below. A home at 2481 Santana Avenue was burglarized between the hours of 1 p.m. and 4 ...

*Wednesday, May 29, 2013 by Mary*

**English**

Rewrite all of the following sentences so they are in the active voice. Some sentences could contain more than one passive verb; correct them all. Convicted murderer Jonathan Walters was walked to the electric chair at 5 a.m. in the company of the warden. Iowa’s state ...

*Monday, May 27, 2013 by Afranko*

**English**

Can somebody please help me write a summary news lead using the story below. The lead may be no longer than 20 words and must be written in the active voice A home at 2481 Santana Avenue was burglarized between the hours of 1 p.m. and 4 p.m. yesterday afternoon. The owner of ...

*Monday, May 20, 2013 by Afranko*

**Writing **

can you check my grammar and spelling? and does it look better? Erin Oldham Calvin Brown 20 March 2013 ASL 2 ASL 2 Research paper I am writing about interviewing three Deaf Persons for my ASL research paper. The first person I interviewed is Christian DeGuzman. He has been ...

*Saturday, May 18, 2013 by Erin *

**Writing**

Advantages and Disadvantages of School Lunches “Never doubt that a small group of thoughtful committed citizens can change the world; indeed, it's the only thing that ever has.” Margaret Mead once said this, which means that we as Americans need to make a ...

*Tuesday, May 14, 2013 by Monae*

**Writing**

Can you proofread my essay? The assignment was to write a problem-solution essay on a big social issue in our world. “Never doubt that a small group of thoughtful committed citizens can change the world; indeed, it's the only thing that ever has.” A quote once ...

*Monday, May 13, 2013 by Monae*

**Elementary algebra multiple choice**

2x^2+3xy-4y^2= (A) 9x^2-4y^2 (B)9x^2+4y^2 (C)9x^2+4y^2-6xy (D)9x^2+4y^2-12xy

*Sunday, April 14, 2013 by Hipolito*

**grammar English**

I am writing about interviewing Deaf Persons for my ASL research paper. The first person is Christian DeGuzman. He is profoundly deaf since birth, and about 2 or 3 years old later they found out that he was deaf that’s why. Christian grew up in Bay Area, went to ...

*Saturday, April 6, 2013 by Erin *

**east brainerd elementary**

Explain It Each video game at an arcade requires 55 tokens. Tom has 100 tokens. He said he can play 2 games. Is he correct? Explain.

*Wednesday, April 3, 2013 by Latha*

**elementary stats**

A binomial random variable is based on n = 28 and p = 0.7. Find x2P(x). (Give your answer correct to two decimal places.) 1

*Saturday, March 30, 2013 by Toni*

**math**

An elementary school collected a total of 240 cans during a food drive. Grade 3 students collected 1/3 of all the cans grade 4 students collected 52 cans, and the rest of the cans were collected by grade 5 students. How many cans did grade 5 collect? A.28 B.80 C.108 D.188

*Friday, March 29, 2013 by elena*

**chem**

(b) (4 pts.) Suppose it is a hot summer day (40.0 degrees C = 104.0 degrees F), and you have left a can of hairspray outside so the gas within it is now at the same temperature of its surroundings. As part of your chemistry lab class, you have to build a safe and effective ...

*Saturday, March 23, 2013 by Anonymous*

**Childhood**

The fundamental purpose of early childhood education should be to a) prepare children for continuing later success in elementary school. B) foster growth of developmental sequences c) foster competence in dealing with life .is letter c) correct?

*Tuesday, March 19, 2013 by Sara*

**Chemistry**

At a given Temperature, the elementary reaction A<--->B in the forward direction is first order in A with a rate constant of 3.90*10^-2s^-1. The reverse reaction is first order in B and the rate constant is 8.20*10^-2s^-1. What is the value at equillibrium for the ...

*Monday, March 18, 2013 by Christina*

**Elementary Algebra**

The manager of a farmer's market has 500lb of grain that costs $1.20 per pound. How many pounds of meal costing $.80 per pound should be mixed with the 500lb of grain to produce a mixture that costs $1.05 per pound?

*Saturday, March 16, 2013 by Takeyia Patrick*

**Chemistry**

Suppose it is a hot summer day (40.0 degrees C = 104.0 degrees F), and you have left a can of hairspray outside so the gas within it is now at the same temperature of its surroundings. As part of your chemistry lab class, you have to build a safe and effective potato gun to ...

*Saturday, March 16, 2013 by Tonya*

**Chemistry**

Suppose it is a hot summer day (40.0 degrees C = 104.0 degrees F), and you have left a can of hairspray outside so the gas within it is now at the same temperature of its surroundings. As part of your chemistry lab class, you have to build a safe and effective potato gun to ...

*Saturday, March 16, 2013 by Anonymous*

**Elementary Analysis**

A company wants to manufacture cylindrical aluminum cans with a value of 1000cm^3 (1 Liter) What radius and height of the can be to minimize the amount of aluminum used? Please help! This is very hard. Thanks.

*Saturday, February 23, 2013 by JEZRELL*

**East brainerd elementary**

reasoning Eric and Madison both measured the same trading card.Eric says the card is about 3inches long.madison says it is about 23/4 inches long.their teacher says both are correct.how is that possible?

*Tuesday, February 19, 2013 by Latha*

**algebra**

Read the article about Body Mass Index (BMI) on page 151 of Elementary and Intermediate Algebra. Use the formula given using pounds and inches for finding the BMI at the end of the first paragraph in order to find the four intervals the article mentions: 17 < BMI < 22 ...

*Sunday, February 17, 2013 by Anonymous*

**math**

Englewood averaged 17 problems right on the math decathlon. Avalon park elementary scored an average of 14 problems right. Which equation shows the difference, (d), between the average points scored by gthe englewood and avalon park? a. d=17 x 14 b. d=17-14 c. d=17+14 d. d=14 ...

*Monday, February 11, 2013 by vera*

**math**

Atdewberry Elementary there are 5 times as many boys than girls. Let (b) represent the number of boys. Which expression shows the number of girls students at the school. a. 5xb b. 5 divided by b c. b divided by 5 d. bx5 my answer is B. Is this correct?

*Sunday, February 10, 2013 by vera*

**MATH**

Englewood averaged 17 problems right on the math decathlon. Avalon Park Elementary scored an average of 14 problems right. Which equation show the difference, (d) between the averaged points scored by the Engelwood and Avalon Park? a. d=17x14 b. d=17-14 c. d=17+14 d. d=14 ...

*Sunday, February 10, 2013 by vera*

**Elementary Algebra**

the width of a garden is 4 times it width the wall of her house forms one width of the triangle he uses 45 feet of fencing for the other 3 sides of his garden what are the length and width of his garden. what is the answer

*Friday, February 8, 2013 by Dena*

**Movement and Music**

Can you please check my semester exam before I turn it in? 1. Children who do poorly in school are primarily ______ learners. a. Auditory b. Kinesthetic c. Spatial d. visual My answer: c 2. A movement program that emphasized divergent problem solving, discovery, and self-...

*Thursday, February 7, 2013 by Cyn*

**elementary math**

i did use my poof to prove. im not sure im doing right. here is exercises: 'Suppose a,b,c are integers if a|b and a|c, then a|(b+c).' my answer: Proof. Suppose a|b ans a|c. By Definition of divisibility. we know a|b means there is an integer x with b= ax. Likewise, a|c...

*Friday, January 25, 2013 by anna*

**elementary**

525 mL= LITERS

*Friday, January 18, 2013 by gaby*

**MATH**

in 2005,Eastside elementary school was built at a cost of $18,000,000.the school it replaced was built in 1935 at the cost of $180,000.explain how the values of the 8 in each number are related

*Wednesday, January 16, 2013 by skylar*

**MATH**

in 2005,Eastside elementary school was built at a cost of $18,000,000.the school it replaced was built in 1935 at the cost of $180,000.explain how the values of the 8 in each number are related

*Wednesday, January 16, 2013 by skylar*

**math**

in 2005,Eastside elementary school was built at a cost of $18,000,000.the school it replaced was built in 1935 at the cost of $180,000.explain how the values of the 8 in each number are related.

*Wednesday, January 16, 2013 by skylar*

**Statistics (Help me please)**

For the following studies, identify the possible target population, elementary unit, sampling frame, sampled population and sampling unit. 1. A doctor wishes to study people working at a hotel in Makati afflicted with hypertension. 2. A researcher would like to estimate the ...

*Tuesday, January 15, 2013 by Cho*

**Statistics (Pls. Help Me)**

For the following studies, identify the possible target population, elementary unit, sampling frame, sampled population and sampling unit. 1. A doctor wishes to study people working at a hotel in Makati afflicted with hypertension. 2. A researcher would like to estimate the ...

*Tuesday, January 15, 2013 by Cho*

**Statistics (Please help me)**

For the following studies, identify the possible target population, elementary unit, sampling frame, sampled population and sampling unit. 1. A doctor wishes to study people working at a hotel in Makati afflicted with hypertension. 2. A researcher would like to estimate the ...

*Tuesday, January 15, 2013 by Cho*

**math**

The principal of Valley Elementary School wants to divide each of the three fourth-grade classes into small same-size groups with at least 2 students in each. If the classes have 18, 24, and 36 students, respectively, what size groups are possible?

*Thursday, December 20, 2012 by zac*

**social**

based on the results of the studies,what should an elementary school teacher do to ensure that a child with an unusual name develops normal intellectual ability? 1)make a special effort to ignore the child. 2) try to give the child a more acceptable" nickname." 3)...

*Wednesday, December 19, 2012 by mirlaine*

**Physics**

If 3.25x10-3 kg of gold is deposited onto the negative electrode of an electrolytic cell in a period of 2.78 hours, what is the current through this cell in amperes? Assume that the gold ions carry one elementary unit of charge

*Monday, December 10, 2012 by Blah*

**Physics**

If 3.25x10-3 kg of gold is deposited onto the negative electrode of an electrolytic cell in a period of 2.78 hours, what is the current through this cell in amperes? Assume that the gold ions carry one elementary unit of charge

*Monday, December 10, 2012 by Blah*

**Elementary**

number sense Edie wanted to subtract 273-188.she began by finding 2-1.what did edie do wrong?

*Wednesday, December 5, 2012 by Latha*

**Math (trigonometry)**

MONDAY December 3, 2012 SCHOOL SUBJECTS Art Business Computers English Foreign Languages Health Home Economics Math Music Physical Education Science Social Studies GRADE LEVELS Preschool Kindergarten Elementary School 1st Grade 2nd Grade 3rd Grade 4th Grade 5th Grade 6th...

*Monday, December 3, 2012 by Sammy*

**elementary**

Draw a picture Draw two ways to show 43 using place-value blocks.

*Monday, December 3, 2012 by Latha*

**elementary**

i need help making a story with these play,fry,stays,fried,spies,spy,stay,cry spelling words

*Friday, November 30, 2012 by Latha*

**elementary**

this ecosystem is very hot and very dry with little or no rain. desert grassland rain forest forest how guess the answer can u explain me

*Wednesday, November 28, 2012 by Latha*

**trouble**

Unlike elementary school, Elvis wasn't popular in high school. He didn't fit in well with the other kids, half due to his weird fashion style, and partly because of his shyness. In his senior year, his high school held a talent show which he entered not knowing what to...

*Monday, November 19, 2012 by Bryce*

**movement and music**

______ should continue to be stressed in a movement program for early elementary. A) cooperation B) competition C) Product D) ability Need help with this question. Just to make sure my answer is right. I believe its A.

*Sunday, November 18, 2012 by Anonymous*

**Chemical Reaction Engineering**

The following elementary first-order reactions occur at constant density: k1 k2 A --> B --> C k1 = 5 hr-1 k2 = 4 hr-1 CA0 = 1 mol/lit CB0 = CC0 = 0 v0 = 20 m^2/min Find the maximum production rate of B in moles per minute and the optimum for (a) a plug flow reactor...

*Thursday, November 15, 2012 by Susan*

**social studies**

base on the results of the studies,what should an elementary school teacher do to ensure that a child with an unusual name develops normal intellectual ability? 1] make a special effort to ignore the child. 2]try to give the child a more acceptable nickname. 3]treat the child ...

*Thursday, November 15, 2012 by mirlaine*

**chem**

Among the elementary subatomic particles of physics is the muon, which decays within a few nanoseconds after formation. The muon has a rest mass 1.126 109 times that of a proton. Calculate the de Broglie wavelength associated with a muon traveling at a velocity of 3.35 104 cm/s.

*Wednesday, November 14, 2012 by Samantha*

**elementary**

Hi, please help me .i don't have how to prepare that science project.how to make dolphins.how to prepare that project.can u please suggest me.

*Monday, November 12, 2012 by Latha*

**Stattistics**

In one elementary school, 200 students are tested on the subject of Math and English. The table below shows the mean and standard deviation for each subject. Mean SD Math 67 9.58 English 78 12.45 One student’s Math score was 70 and the same individual’s English score...

*Sunday, November 11, 2012 by lisa *

**langrange**

Should elementary school children receive material rewards for performance and cooperation? Imagine that you are a parent and that you have a child in the first grade. You have received a notice from the principal of the school that a program of tangible rewards (buttons, ...

*Thursday, November 8, 2012 by Anonymous*

**science(reading)**

"he proved the existence of neutrons - elementary particles devoid of any electrical charge. In contrast with the helium nuclei (alpha rays) which are charged, and therefore repelled by the considerable electrical forces present in the nuclei of heavy atoms, this new tool...

*Friday, November 2, 2012 by Samantha*

**elementary**

please give me response.i don't have any idea from this science project. research graphic organizer we select dolphin.how to prepare that dolphin.which one is the best thing.can u explaine me

*Thursday, November 1, 2012 by swetha*

**elementary**

third grade project in order to enhance our unit on inspired by the sea.home research project on an ocean animal of their choosing.please help me.any links

*Wednesday, October 31, 2012 by swetha*

**elementary**

nuber sense minnie has 6 county cds and 5 rock cds.amanda has 5 rock cds and 6 country cds.who has more cds?explain.

*Wednesday, October 31, 2012 by josh*

**elementary**

explain it jake says that adding 0 does not change a sum.is he correct?explain.

*Wednesday, October 31, 2012 by josh*

**Math Solve the following**

Question: 1.Russell has a pipe that is 150 inches long. it must be cut into 3 1/8 inches segments for project. How many segments will he have? 2. Rebeckah is an elementary school teacher. she is making an individual craft project kits that requires 2/3 of a cup of water to ...

*Wednesday, October 31, 2012 by jessica*

**Math Solve the following**

Rebekah is an elementary school teacher. She is making an individual craft project kits that requires 2/3 of a cup water to complete. How many cups of water will she nee if she i making the craft project kits for each of he24 students?

*Wednesday, October 31, 2012 by jessica*

**Math**

can somebody please help me answer this. Thank you.Rebeckah is an elementary school teacher. she is making an individual craft project kits that requires 2/3 of a cup of water to complete. How many cups of water will she needs if she is making the craft project kits for each ...

*Wednesday, October 31, 2012 by jessica*

**elementary**

write your own sentence using the words: me

*Tuesday, October 30, 2012 by josh*

**elementary**

translating words to expressions twice as many people get on the bus .there were 12 people on the bus

*Monday, October 29, 2012 by swetha*

**elementary**

geometry a figure has 3 more sides than a pentagon.write an expression for the number of sides the new figure has.

*Monday, October 29, 2012 by swetha*

**elementary**

translating words to expressions twice as many people get on the bus

*Monday, October 29, 2012 by swetha*

**elementary**

write a problem write a word problem involving the number of pages in a book.then write the numerical expression that you would need to use to solve your problem.

*Monday, October 29, 2012 by swetha*

**elementary**

Explain it sandy said she could use addition to answer question 1 how could this be done?

*Thursday, October 25, 2012 by swetha*

**Elementary**

number sense fabio said that there are 3 times as many people on a basketball team as on a tennis team.is he correct?why or why not. tennis 2 players basketball 5 players

*Thursday, October 25, 2012 by swetha*

**elementary**

Explain it sandy said she could use addition to answer question 1 how could this be done?

*Thursday, October 25, 2012 by josh*

**elementary**

number sense fabio said that there are 3 times as many people on a basketball team as on a tennis team.is he correct?why or why not. tennis 2 players basketball 5 players

*Thursday, October 25, 2012 by josh*

**elementary**

use, using,eat,eating,close,moan,wave,writing,looking,dream,skate,closing,trading,cleaning,clean,write,skating,waving,look,mail,mailing. write these spelling words vowels&conosonents all spelling words are vowels.no consonents.are u correct

*Wednesday, October 17, 2012 by josh*

**elementary**

explain it josh says that if he divides 50 by 5,he will get 10.jeff says he shhould get 9.who is correct?explain.

*Tuesday, October 16, 2012 by josh*

**elementary**

gabriella and 4 friends shared a pack of 15 glue sticks equally.how many giue sticks did each person get?

*Tuesday, October 16, 2012 by josh*

**elementary**

Draw an array. Then write a fact family to describe your array

*Monday, October 15, 2012 by josh*

**Elementary Statistics**

Compare the 95% and 99% confidence intervals for the hours of sleep a student gets. Explain the difference between these intervals and why this difference occurs.

*Sunday, October 14, 2012 by KAOS*

**Oakton College**

How is dividing a polynomial by a binomial similar to or different from the long division you learned in elementary school? Can understanding how to do one kind of division help you with understanding the other kind? What are some examples from real life in which you might use...

*Saturday, October 13, 2012 by Junkoping*

**Elementary Math**

-0.1<=y<=0.1 <= means less than or equal to So if I break the statement up is y <= -0.1 y>=0.1 Correct? Please help I'm confused.

*Wednesday, October 10, 2012 by Chris *

**ELEMENTARY**

How to prepare PSAT test from 3rd grade

*Monday, October 8, 2012 by josh*

**elementary school math**

Which of the following symbols could you use to complete this number sentence? Explain your reasoning. .= + < # - > 7,000+800+9. 7,000+900+8

*Friday, September 28, 2012 by stephanie*

**elementary and intermediate algebra**

how to write the equation for the following problem: The Post office charges extra for packages that must be processed by hand. Find an equation for the nonmachinable cost n in terms of the machinable cost m. 1 pound is $ 2.74( machinable cost, nonmachinable cost is $ 4.95

*Thursday, September 27, 2012 by alicia*

**education**

Read the following scenario: You are a second-grade teacher at Happy Valley Elementary School. You are teaching language arts and social studies. Your classroom of 21 students consists of 7 white students, 5 Latino students, 4 African American students, 3 Native American ...

*Sunday, September 16, 2012 by kristin*

**English**

1. I have helped an elementary school student to cross a street. 2. I have helped an old man to find a drug store. 3. I have helped an old lady to find her daughter's apartment. 4. I have helped a blind man to buy things at a supermarket. 5. I have helped a drowning boy to...

*Monday, September 10, 2012 by rfvv*

**Intro to Education**

Describe the duties of elementary and secondary school teachers in terms of the recognized criteria for a profession. What are the major differences in duties?

*Saturday, September 8, 2012 by Isabella*

**Economics**

Suppose the U.S government decides that the incomes of dairy farmers should be maintained at a level that allows the traditional family dairy farm to survive. It therefore implements a price floor of $1 per pint by buying surplus milk until the market price is $1 per pint. Use...

*Friday, September 7, 2012 by Cecilia*

**Elementary Statistics**

Heights of women have a bell-shaped distribution with a mean of 161 cm and a standard deviation of 7 cm. Using Chebyshev’s theorem, what do we know about the percentage of women with heights that are within 2 standard deviations of the mean? What are the minimum and ...

*Tuesday, September 4, 2012 by mary*

**statistics**

3. In one elementary school, 200 students are tested on the subject of Math and English. The table below shows the mean and standard deviation for each subject. Mean SD Math 67 9.58 English 78 12.45 One student’s Math score was 70 and the same individual’s English ...

*Monday, September 3, 2012 by Sandra*

**management**

1. Regarding management and leadership, which statement is most accurate? A. Leaders can be good managers, and good managers can be leaders. B. Leaders aren’t managers, and managers aren’t leaders. C. Leadership and management are entirely unrelated. D. Most ...

*Wednesday, August 22, 2012 by kim*

**Elementary Algebra**

Can you help me solve this problem by elimination? 4x-2y=16 5x+7y=1

*Wednesday, August 8, 2012 by Wanda*

**Elementary Algebra**

How do I figure out whether or not (-1,-2) is a solution for the system. y=3x-1 2x+y=4

*Tuesday, August 7, 2012 by Wanda*

**Elementary Algebra**

I need help setting this problem up? AT&T one rate 10cents nation wide direct plan for $2.99 a month plus 10cents per minute. Quest 5cent long distance plan for $4.99 per month plus 5cents per minute. For what number of minutes per month will the two plans cost the same?

*Monday, August 6, 2012 by Wanda*

**Elementary Algebra**

How do you solve by elimination this linear equation? 8x-3y=-6, 5x+6y=75

*Monday, August 6, 2012 by Wanda*

**Elementary Algebra**

The perimeter of a soccer field is 280yd. The width is 5yd more than half the length. Can you help me with the formula to solve this problem?

*Sunday, August 5, 2012 by Wanda*

**math**

An elementary school has a large lunch room containing many tables. One day at lunch, the children at one table decide to see how long it will take to spread a rumor throughout the entire room. Each minute, the number of tables that know the rumor doubles in size. If it takes ...

*Friday, August 3, 2012 by Anonymous*