Homework Help: 2nd Grade

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Physics 11th grade
1) A racing car has a mass of 1525 kg. What is its kinetic energy if it has a speed of 35 m/s? 2) How much potential energy does Tim,with mass 60.0 kg, gain when he climbs a gymnasium rope a distance of 3.5 m? -Benchmark Review-
Sunday, March 10, 2013 at 4:29pm

Education
Hello! I'm working on a lesson plan on the Sum of the Angles of a Polygon. I know the whole process involves finding how many triangles there are (#of sides minus 2) and then multiplying by 180degrees. But my focus on this lesson plan is on 5th grade students. How much ...
Sunday, March 10, 2013 at 12:13pm

ENGLISH/MATH/SCIENCE HELP!
Is there any websites for teens to read short stories (or long), then you answer ONLY multiple choice questions, grade you, and to have a profile or something to see all of your grades if your making progress each time (to see if your improving). I want to improve my reading ...
Saturday, March 9, 2013 at 12:22pm

5th grade math (word problems)
I got these problems wrong in class. but, think i have the right answer now. Can you check? 1. Jim's mother made pizzas for his birthday. SHe sliced the pizzas into 50 slices. She served Jeff and his 7 guests the same number of slices and she ate the rest. How many pieces ...
Saturday, March 9, 2013 at 11:15am

Lang. Arts
4. Identify the appositive phrase in the following sentence. Mrs. Talavera, an eighth grade teacher at Rosewood Middle School, led the community meeting about childhood obesity. A.Mrs. Talavera B.an eighth grade teacher at Rosewood Middle School C.led the community meeting D....
Saturday, March 9, 2013 at 10:48am

algebra
Last semester, a certain professor gave 11 As out of 226 grades. If one of the professor's students from last semester were selected randomly, what is the probability that student received an A? (Assume that each student receives one grade.)
Saturday, March 9, 2013 at 12:52am

ALL subjects..
Hi!! Well,I'm in tenth grade And I was wondering if there are any practice test websites for the 10th grade Test.. I believe Pct? Please!! Help..
Friday, March 8, 2013 at 8:22am

5th grade math (word problems)
I'm not sure how to solve the following problem. I don't think i have enough information. Ali deposited $120 in her savings account. This represents 75% of the money she received for her birthday. She pent the rest of her money on a lego toy. How much did the lego cost...
Thursday, March 7, 2013 at 6:36pm

math
suppose you won a contest at the start of 5th grade that deposited $3000 in an account that pays 5% annual interest compounded continuously. how much will you have in the account when you enter high school 4 years later? round to nearest dollar how much will be in the account ...
Thursday, March 7, 2013 at 6:30pm

help
can someone help me with the pythagorean theorem? VERY HARD IM IN 7TH GRADE AND THIS IS SOME 7TH GRADE MATH HOMEWORK THAT I NEED HELP WITH!!!!!!!!!!!
Thursday, March 7, 2013 at 5:26pm

4th grade Algebra
Evaluate the expression 15 - n when n= 9 I am not sure but is it 6?
Thursday, March 7, 2013 at 4:02pm

math
what is 31/3 simplified by idk(im in 5th grade)
Wednesday, March 6, 2013 at 10:35pm

maths
The mean grade of 10 students was 72.if 2 of the students with grades of 53,75 are cancelled. What should be the mean grade of the remaining?
Wednesday, March 6, 2013 at 8:57pm

4th grade Algebra
What is another way to write the expression 44n? What is another way to write the expression 44 divided by n?
Wednesday, March 6, 2013 at 4:48pm

Math(problem solving)
Four darts are thrown at this dartboard. If all four darts hit the board, how many different point totals are possible? there are 4 circles with point totals: working out from the middle bulls eye.. bulls eye = 9 2nd circle = 7 3rd circle = 4 outter circle = 1 please help, i&#...
Wednesday, March 6, 2013 at 6:10am

Math
Write the following number in standard form (4X10 4th power)+(3X10 3rd power)+(2X10 2nd power)+(5X1)=
Tuesday, March 5, 2013 at 9:41pm

Data Management Grade 12
A survey of 1000 television viewers conducted by a local television station produced the following data: •40% watch the news at 12:00 •60% watch the news at 18:00 •50% watch the news at 23:00 •25% watch the news at 12:00 and at 18:00 •20% watch the ...
Tuesday, March 5, 2013 at 8:20pm

3rd grade math
there are 6 teams in the youth basketball league. during the season, each team plays 15 games.how many total quarters of basketball are played in all of the teams games during the season. each game made up of 4 quarters.
Tuesday, March 5, 2013 at 6:57pm

3rd grade math
yolanda plays basketball in a youth league. each game is made up of 4 quarters, and each quarter is 8 minutes long. if yolanda plays every quarter during 7 games, how many minutes does she play in all.
Tuesday, March 5, 2013 at 5:45pm

Math 6th grade
The base of the skateboard ramp has an area of 2.3 m square meters the height of the ramp is 1.2 m find the volume of the rectangular prism?Please help!
Tuesday, March 5, 2013 at 3:33pm

Pre-Algebra
Grade 7 students were surveyed to determine how many hours per day they spent on various activities. Eating is 8%, homework is 8%, sleeping is 33%, TV is 13%, socializing 13%, and school is 25%. About how many hours per day altogether were spent on watching TV and homework?
Tuesday, March 5, 2013 at 8:51am

Soc. Studies - Help please
2nd time asking this question - need further clarification - please What was the outcome of the Alliance for Progress? A.Americans opposed Kennedy’s policies. B.Relations between the United States and Latin America improved. C.Relations between the United States and Latin...
Tuesday, March 5, 2013 at 12:13am

Reading
What is a 2nd grade pronoun definition
Monday, March 4, 2013 at 8:59pm

Stat
1. For the following scores, X Y 1 6 4 1 1 4 1 3 3 1 Sketch a scatter plot and estimate the value of the Pearson correlation. b. Compute the Pearson correlation 2. For the following set of scores, X Y 6 4 3 1 5 0 6 7 4 2 6 4 a. Compute the Pearson correlation. b. Add 2 points ...
Monday, March 4, 2013 at 1:06am

Math
Elaine has a customer who needs a box with a volume of 12 cubic inches. The customer want to know what size box is the least expensive to buy. .the price will be based on surface area. the supplier charges 1/2 cent persquare inch. .the dimensions of the box are whole numbers ...
Sunday, March 3, 2013 at 10:10pm

Math 7th grade
Katya bought 2 gallons of juice. she drank 2 quarts. how much was left?
Sunday, March 3, 2013 at 9:09pm

Math
elaine is stocking a new box that is 24 inches long, 12 inches wide, and 10 inches high. Make a recommendation to elaine regarding a price for this box size. remember that her box supplier charges her 1/2 cent per square inch of surface area for each box explain your answer? I...
Sunday, March 3, 2013 at 2:17pm

7th grade science
Q: a species of rodent lives in a moist forest. over time, the climate changes and becomes drier and more desert-like. which of these adaptations is most likely to improve the chances that the species will survive as its environment changes? Answer choices: ---------------- A...
Sunday, March 3, 2013 at 12:22pm

Urgent
draw an angle x in the 1st quadrant with sinx=3/5, and an angle y in the 2nd quadrant with cosy=-12/13, then determine the exact value of tan(x+y).
Friday, March 1, 2013 at 12:46pm

Math (2nd Try)
A rectangle has a length of 6x^3 y^2 - 1 and a width of 3xy + 2. The formula for the perimeter of a rectangle is P=2l + 2w, where l is the length and w is the width. What is the perimeter of the rectangle? Simplify your answer.
Friday, March 1, 2013 at 8:50am

Devry
1. You are part of a team given the task of designing an application to determine a students letter grade for a short course. The application will process a quiz, a project, a midterm exam and a final exam to determine the total score. The result of dividing the total score by...
Friday, March 1, 2013 at 1:42am

3rd grade
Jan's parents gave her $12. each week after that they give her $5. how much money withh jan have at the end of four weeks? A. $20 B. $32 c. $28 D. 436
Thursday, February 28, 2013 at 10:10pm

Grade 11 english
I have a take over the world assignment to do.. Come up with a way to create a long term, stable dictatorship in Canada. However you have seen what happens in dictatorships when the population becomes dissatisfied. How are you going to ensure that the population remains ...
Thursday, February 28, 2013 at 5:20pm

Writing
2nd grade opinion pieces
Thursday, February 28, 2013 at 9:44am

LA
What are some tips to help me write better. I'm in 5th grade an i'm still writing run-ons.
Thursday, February 28, 2013 at 7:34am

Similarity
What is one similarity between 4th grade and 5th grade?
Wednesday, February 27, 2013 at 8:53pm

writing
For my writing, it has to be a three paragraph essay.I have to include 2 differences and 1 similarity about 4th grade vs. the 5th grade. How do I start my paragraph?
Wednesday, February 27, 2013 at 8:11pm

Reading
Is these answers correct? condone, pathetic, feign, precedent, comtemplate gape furtive feasible, fiscal, punitive 1-2. "Would it be__ for us to buy a new copy machine?" Hal asked at the office budget meeting. The boss replied, "Unfortunately, our __situation is...
Wednesday, February 27, 2013 at 5:41pm

6th grade Algebra
Power Standard Form 10^1 10 10^2 100 10^3 1000 10^4 10000 10^5 100000 Write a rule for the number pattern.
Wednesday, February 27, 2013 at 12:16pm

4th grade grammar
1. clean the campsite well or good 2. eat well or good
Wednesday, February 27, 2013 at 9:28am

3rd grade
you have 3 dimes. you need a quarter to use a public telephone. what can you do?
Tuesday, February 26, 2013 at 3:51pm

3rd grade math
one 10 is regrouped as 10 ones in each number. work backwards. write the number with 10 ones grouped as 1 ten again. 1.tens ones 5 15
Tuesday, February 26, 2013 at 3:50pm

6th grade math
n/4+32=72
Tuesday, February 26, 2013 at 7:36am

6th grade math
n/4 +32=32 I can get it n/4=40 but not sure how to get n by itself????
Tuesday, February 26, 2013 at 7:25am

6th grade math
Unable to help my child with this problem... 71.33=9/5k-459.67 solving for k
Monday, February 25, 2013 at 10:20pm

Math 6th grade
I am having trouble with Input output for this problem, I can't figure out the function rule input x= output y= 2 1 3 0 4 -1 Please Help!
Monday, February 25, 2013 at 9:51pm

phy
A bicycle and its rider together has a mass of 62 kg. What power output of the rider is required to maintain a constant speed of 4.6 m/s (about 10.3 mph) up a 5.0% grade (a road that rises 5.0 m for every 100 m along the pavement)? Assume that frictional losses of energy are ...
Monday, February 25, 2013 at 9:03pm

5th grade math
Is 3/9 <,>,= to 9/14?
Monday, February 25, 2013 at 7:13pm

grade 9 english
My question is about the story a midsummer nights dream, in act one 1. Why does helena wish her 'tongue should catch(hermia's) tongue's sweet melody'(189)
Monday, February 25, 2013 at 10:35am

math
I dontunderstand this question can you please help me. "Explain why 3 separate lines can all be parallel to each other,but 3 separate lines cannot all be perpendicular to each other. Use a drawing to show your answer."
Sunday, February 24, 2013 at 7:53pm

TOURISM GRADE 12
influence of recent global event on tourism
Sunday, February 24, 2013 at 6:30am

grade 11 math
Determine two angles between 0°and 360°that have a secant of -4. Round your answers to the nearest degree. There are tw answer 104°( I got this one but there is also 256° I dont have anyidea for this one please explain to me I appreciate your time thankyou sooo...
Saturday, February 23, 2013 at 12:42pm

United States Constition
Details: Part I: Principles of the Constitution Create a chart or a matrix outlining the following primary principles of the Constitution: 1. Self-Government 2. Separation of Powers 3. Checks and Balances Write an analysis of 250-500 words on the effectiveness of the checks ...
Saturday, February 23, 2013 at 3:05am

Chemistry :) simple question
When an acid reacts with a metal such as zinc, whats released? Where does the product come from? I answered: a gas hydrogen is released and it comes from the bubbles formed when an acid is added to a metal' is the 2nd part of the q correct??
Thursday, February 21, 2013 at 10:49am

7th grade math
there are 5 times as many tomato plants.in the gatden as there ate cucumber plants. the number of pepper plants is 7 more than the sum of the number of tomato and cucumber plants. there are 19 pepper plants in the garden. how many cucumber plants are there? how many tomato ...
Wednesday, February 20, 2013 at 9:34pm

math
What is a decimal for 21/33??? I really need help on this one!!!! I'm in fith grade so it's probably easy to help me!!! I also have a quiz tomorrow and I don't get decimals at all because I was out from school for 2 days because I was in the poconos. Thanks guys ...
Wednesday, February 20, 2013 at 3:53pm

7th Grade Math
5. Park Rangers wanted to estimate the total number of wild mustangs in Central Oregon. They tagged 30 wild mustangs and sent them back to the herd. They recorded the mustang population once a month for the next three months as shown below. Month 1 Month 2 Month 3 tagged ...
Tuesday, February 19, 2013 at 10:22pm

reading
(1) After my interview with these four young people, I reflected on the quiet sense of "difference" I sensed with many of these Upward Bound students. (2) As a college teacher who has also taught seventh-grade science, I have some experience with the faces and ...
Tuesday, February 19, 2013 at 8:14pm

math
In third grade... Write an equation comparing test scores of 88 and 97. (Use a box for missing number) do you know how to answer this?
Tuesday, February 19, 2013 at 7:43pm

math
In third grade... Write an equation comparing test scores of 88 and 97. (Use a box for missing number) do you know how to answer this?
Tuesday, February 19, 2013 at 7:21pm

Statistics
In your biology class, your final grade is based on several things: a lab score, scores on two major tests, and your score on the final exam. There are 100 points available for each score. However, the lab score is worth 15% of your total grade, each major test is worth 22.5...
Tuesday, February 19, 2013 at 5:06pm

Math 6th grade
Story Problem - Factoring An "A" train leaves a subway station every 13 minutes. An "E" train leaves evry 9 minutes. If both trains just left the station on parallel tracts, when will both leave the station together again?
Tuesday, February 19, 2013 at 3:46pm

Principles of Management
Riya, a manager, calls a meeting of her subordinates to tell them about the new benefits package.Riya is performing the _______role. A. Disseminator B. Monitor C. Spokeperson D. Negotiator My answer: A 2nd question: Namibia has a law that prohibits foreign companies from ...
Tuesday, February 19, 2013 at 1:04pm

math
1:how do you order 3/4 , 7/8 ,and 13/6 from least to greatest. 2:how do you convert 2 2/4 ito an improper fractin. 3:how do you convert 3% into a decimal and how do you convert 4.56 into a percent ... i am in 6th grade by the way and make sure you provide the answer
Monday, February 18, 2013 at 4:50pm

grade 9 english
questions for short story Stones by sandra birdsell. 1) in two sentences retell the story. 2a) Compare the descriptions of the two woman's laughter in paragraph three. Explain how the similes capture the personalities of each of these characters. 2b) consider why the ...
Monday, February 18, 2013 at 3:27pm

AP English 11
I have to write a paper for english, i keep getting bad grades and i use the paper rater sight always to make sure i do my best. it shows i get a 95 and my teacher gives me 30-20 points less and i dont under stand what im doing wrong. i need help on my next paper which is ...
Monday, February 18, 2013 at 2:31pm

Algebra
Can you please give me some real life examples of using variables and solving equations. These are 6th grade students and I need to show real-life experiences. Thanks!
Monday, February 18, 2013 at 9:59am

7th Grade Math
I do know how to find the area of a square and rectangle, but how do you fing the area of a rhombus. (that is at least what it looks like.) The shape I'm talking about is like a rectangle but it looks like one side got stretched to the left. (sorry if I made that even more...
Friday, February 15, 2013 at 2:42pm

Education/Technology
What software features are important in selecting classroom management software, based on the classroom academic software evaluation rubric? A) The list includes grade level, documentation, cost, help features, and ease of installation. B) The list includes ease of updates, ...
Thursday, February 14, 2013 at 6:49pm

3rd grade math
A 16 wheler truck has 16 tires. The cab of a 16 wheeler has 6 tires. how many tires are on 11 truck cabs?
Thursday, February 14, 2013 at 6:39pm

3rd grade math
write greater than, lesser than, or equal: 25 cents --------------- 3/10 of a dollar.
Thursday, February 14, 2013 at 6:35pm

7th grade math Ms. Sue please last questions!
15. Find the area of a triangle with a base of 9.3 ft. and the height is 3.5 ft. 32.55 ft² 24.81 ft² 16.275 ft² 11.0 ft² 16. Find the area of a parallelogram with a base of 15 in. and the height is 7 in. 105 in² 110 in² 52.5 in² 210 in² ...
Wednesday, February 13, 2013 at 9:40pm

7th grade math please help Ms. Sue ASAP
14. Find the value of the missing angle. (It is a hexagon. In the picture, going counter-clockwise, the angles are: 152, 85, 125, 135, 85, and "x" degree angles) 720º 120º 128º 138º I need help finding "x"! So far, the angles they have ...
Wednesday, February 13, 2013 at 9:19pm

7th grade math please help Ms. Sue
9. Name the triangles that are classified by angles. (1 point) right, scalene, isosceles scalene, isosceles, equilateral acute, right, obtuse obtuse, isosceles, acute 11. Name the quadrilaterals that have four equal sides. (1 point) rhombus, square square, rectangle ...
Wednesday, February 13, 2013 at 8:28pm

science
what is food vacuole and contractile vacuole 4th grade
Wednesday, February 13, 2013 at 6:40pm

6 grade math
(100-7•2+3)÷10 =
Tuesday, February 12, 2013 at 10:33pm

7th grade social studies
I am doing a research on diamonds and need help. I am having trouble finding a source that answers my questions besides Wikipedia. My teachers will not let us use Wikipedia. Can you please provide links to these questions? 1. Where is the natural resource (diamonds) located? ...
Tuesday, February 12, 2013 at 8:33pm

math
A fifth grade class collected data about class spending per month on various items. Below are some of the results. A median amount of $6 per month was spent for books and magazine. A median amount of $10 per month was spent for tapes and CDs. A median amount of $8 per month ...
Tuesday, February 12, 2013 at 5:25pm

math 4th grade
will those same steps work if the problem is x/12=2/6 will the answer be 4/12
Tuesday, February 12, 2013 at 4:45pm

5th grade math
adam read a 360 page book in 3 days. he read twice as many pages on the middle day as he did on the first day or last day. How many pages did he read on the LAST day.
Tuesday, February 12, 2013 at 4:43pm

math 4th grade
my mistake will it be 8
Tuesday, February 12, 2013 at 4:36pm

math 4th grade
now is the correct answer 4
Tuesday, February 12, 2013 at 4:34pm

PLEASE HELP 5th grade math
There are 28 students in zacks class.one forth are absent how many students are present? Answer choises a.16 b.7 c.9 d.21
Tuesday, February 12, 2013 at 4:32pm

math 4th grade
So Alyonka will the correct answer be 10
Tuesday, February 12, 2013 at 4:23pm

math 4th grade
Find the missing number 2/5 = /20 could you explain the steps I take to find the answer
Tuesday, February 12, 2013 at 4:16pm

POS-301-0101 arizona government
Using 750-1,000 words, create a chronological narrative delineating the significance of the documents/events listed below that impacted the evolution of the United States Constitution. In your narrative, discuss each of the documents and/or events listed below, then analyze ...
Tuesday, February 12, 2013 at 12:24am

7th Grade Math
The area of a certain rectangle is 288yd^2.the perimeter is 68yd.if you double the lengths and widths,what will be the new area and perimeter of the new rectangle be?
Monday, February 11, 2013 at 8:58pm

5ht grade math word problems
sue baked chocolate chip cookies. although the recipe said it would make 5 dozen, she actually made 4 less than that. if there were slightly more than 500 chips in the package what is the average number of chips for each cookie?
Monday, February 11, 2013 at 7:30pm

3rd grade math
enzo and eric are a sharing a pie. if enzo eats 1/3 of the pie and eric eats 1/5 of the pie, is there more than 1/2 of the pie remaining.
Monday, February 11, 2013 at 6:55pm

statistics
this is a problem in my statistics class, and I am lost to me, it is confusing or missing something here is the problem please help grade points are assignede as follows: a=4,b=3,c=2,d=1,f=0. grades are weighted according to credit hours. if a student receives an A in a four-...
Sunday, February 10, 2013 at 10:42pm

Physics Grade 11
12kg box is placed on a rough surface. A force of 20N is applied at an angle of 30 degrees. Calculate the magnitude and direction of the normal and friction forces
Sunday, February 10, 2013 at 2:51pm

Science (8th grade)
I still am confused about the snail lab things... Ms. Sue helped me with the calculate, but I still have a question... Calculations: .136 cm/s .000136 m/s .4896 m/h Calculate how long it will take your snail to cross a sidewalk(2m) cross a road(20m). How would I do that?
Sunday, February 10, 2013 at 11:59am

Science (8th grade)
I am doing a lab and I really need help! I calculated that my snail traveled as his average speed of .136 cm/s, 1.36m/s, and 4896 m/hr. Does that sound right? Also I need help on another thing. My paper says Calculate how long it will take your snail to cross a sidewalk (2m) ...
Saturday, February 9, 2013 at 4:36pm

Math
Instructions Suppose we have a sequence (1), (2, 3), (4, 5, 6). (7, 8, 9, 10), (11, 12, 13, 14, 15), ... where (1) is the first element of the sequence, (2, 3) is the second, etc. What is the first number in the 100th element of the sequence? Be sure to do more than answer the...
Saturday, February 9, 2013 at 4:04pm

statistics
the mean scale score on the mathematics examination of ninth grade students in new york state was 86 with a standard deviation of 5 points. Given a student was selected at random what is the probabilty that his score was 91 or higher?
Saturday, February 9, 2013 at 3:43pm

stats
suppose you are to form a scatterplot oby collecting data for the given pair of variables. determine the likely direction form and strngth. Student: high grade point average, student: studying consistency
Saturday, February 9, 2013 at 1:36pm

7th grade language arts Ms. Sue please
1. Which of the following is not a part of evaluating sources? (1 point) checking the author's credentials questioning possible bias making sure the information is current agreeing with the author's opinions 2. Which of the following websites would you most likely use ...
Friday, February 8, 2013 at 5:47pm

7th grade science help ASAP 2 questions!
4. Most digestion takes place in the _____. (1 point) large intestine mouth small intestine stomach 5. The large intestine maintains ___________ by absorbing water from the _______, or undigested mass. (1 point) homeostasis; chyme digestion; saliva mechanical digestion; ...
Thursday, February 7, 2013 at 10:35pm

3rd grade Math
Explain It How can you suse a multiplication fact to find a division fact?
Thursday, February 7, 2013 at 8:18pm

Algebra 2
A teacher announces that exams count 20% of the 1st quarter's average. If a student has a 75 average, what must he get on his exam in order to bring his grade to at least to an 82?
Thursday, February 7, 2013 at 7:04pm

Environmental Science 11th grade
The process of separating 238-U to produce material containing a higher concentration.
Thursday, February 7, 2013 at 12:35pm

Environmental Science 11th grade
If half of a quantity of radioactive material decays in 10 years, in another 10 years?
Thursday, February 7, 2013 at 12:34pm

Education/Technology
In selecting software for the classroom, it is first necessary to ensure that A) the software features both text and colorful graphics. B) the software is at the correct grade level for your students. C) the software addresses diverse learning styles. D) the software is ...
Thursday, February 7, 2013 at 12:21pm

Math grade 8 (algebra)
The perimeter of the square is 2cm longer than the perimeter of the triangle.Write an equation for the perimeter of the square and then determine the length of each side of the square. Thank you in advance.
Thursday, February 7, 2013 at 7:55am

7th grade math please help Ms. Sue
4. Find the area for a triangle: base 14, height 5.5. (1 point) 19.5 cm² 77 cm² 38.5 cm² 770 cm² 5. Find the area of a parallelogram: base 5.2, height 2.3. (1 point) 10.6 cm² 12.96 cm² 5.98 cm² 11.96 cm² My answers: 4. 38.5 cm² 5. ...
Wednesday, February 6, 2013 at 9:26pm

math 4th grade
I donot under stand about decomposing these 7/9 and 4/10 please help
Wednesday, February 6, 2013 at 9:23pm

Statistics
A study of reading ability in schoolchildren chose 60 fifth-grade children at random from a school. The researchers had children's scores on an IQ test and on a test of reading ability. An eccentric professor has his own idea of the relationship between IQ and reading ...
Wednesday, February 6, 2013 at 9:22pm

math 4th grade
Sue, we are trying to understand this ordering fractions from least to greatest, 1/2 3/4 4/6 . I don't understand about change the denominator to 12?
Wednesday, February 6, 2013 at 9:21pm

7th grade health please help Ms. Sue!
1. Which substance found in tobacco is a drug that speeds up the heartbeat? (1 point) Tar Carbon monoxide Nicotine Emphysema 2. Which substance found in tobacco causes emphysema, a disease of the lungs? (1 point) Tar Carbon monoxide Nicotine Secondhand smoke 3. Which substance...
Wednesday, February 6, 2013 at 6:37pm

Chemistry
This isn't exactly a homework question, I'm just trying to understand the concept we learned today... So say we had: 4Fe + 3O2 → 2Fe2O3 + 1.65 x 10^3 kJ Does that mean for every 4 mol of Fe, 3 mol of O2, and 2 mol of Fe2O3 we have 1.65 x 10^3 kJ? And if I were to...
Wednesday, February 6, 2013 at 4:39pm

Maths
Thato caught 4 snails and placed them all in the same small circle on the ground and organised a race......1st snail travelled 24cm in 4minutes,2nd snail travelled 35 cm in 7minutes,3rd snail travelled 33cm in 5minutes and the 4th snail travelled 39cm in 6minutes..... (1)how ...
Wednesday, February 6, 2013 at 6:32am

math
1.As the 1st quantity increases, the 2nd quantity also increases. 2.As the 1st quantity increases, the second quantity decreases.
Wednesday, February 6, 2013 at 5:40am

math
Can someone please show me how to estimate mixed numbers. An exsample like 6 and two thrids times 4 and one fifth. Also estimate by rounding to 0, 1/2, or 1. Exsample...5/8x9/10. I would appreciate any help I am in the 6th grade and me and math are not doing so well.....Thanks!
Tuesday, February 5, 2013 at 11:40pm

7th grade math please help Ms. Sue ASAP
12. Write a sequence of transformations that maps triangle ABC onto triangle A''B''C''. It is a graph, so here are the coordinates: A is 1,8 B is 3,12 C is 4,4 A'' is 3, -3 B'' is 5, -6 C'' is 6, 2 Please help! I have no idea how...
Tuesday, February 5, 2013 at 9:36pm

stats
Relatively speaking, which statistics exam did you do better on? On your first statistics exam you scored a 72 and on the second exam you scored an 89. Hey, you’re improving! Or are you? On the first exam, the class mean was 71 with a standard deviation of 15. On the ...
Tuesday, February 5, 2013 at 9:21pm

7th grade math Ms. Sue please
2. Find the sum of the interior angles of a nonagon. (1 point) 140° 1,620° 1,260° 1,450° 4. Find the measure of each interior angle of a polygon with 12 sides. (1 point) 1,800° 150° 180° 145° 5. Four of the angles of a pentagon measure 85°, ...
Tuesday, February 5, 2013 at 8:21pm

5th grade math
Alicia has 4 yards of ribbon. She needs 1/3 yard to make 1 bow .How many bows can Alicia make?
Monday, February 4, 2013 at 11:55pm

5th grade math
Tavon has 5 yards of ribbon. He needs 1/6 yard to make 1 bow. How many bows can Tavon make?
Monday, February 4, 2013 at 10:36pm

5th grade math
Alicia has 4 yards of ribbon. She needs 1/3 yard to make 1 bow .How many bows can Alicia make?
Monday, February 4, 2013 at 10:29pm

5th grade math
Joshua has 3 yards of ribbon. He needs 1/4 yard to make 1 bow. How many bows can Joshua make? Break down problem.
Monday, February 4, 2013 at 10:23pm

math 5th grade
A rectangle with a length of 4/9 foot and a width of 2 feet
Monday, February 4, 2013 at 8:35pm

3rd grade math
There are 30 books in a bookcase. The books in the bookcase are all poetry, history, and art books. Ten of the books are art books. There are 6 fewer poetry books than history books. How many poetry books are in the bookcase?
Monday, February 4, 2013 at 8:30pm

7th grade math Ms. Sue please
4. List all of the quadrilaterals with exactly one pair of parallel sides. (1 point) parallelogram; trapezoid rhombus; parallelogram; rectangle trapezoid rhombus;, square; rectangle 5. List all of the quadrilaterals with four right angles. (1 point) trapezoid; rectangle; ...
Monday, February 4, 2013 at 8:20pm

Math-grade 4
what is the estimated quotient of 6 divided into 75?
Monday, February 4, 2013 at 8:06pm

7th grade language arts Ms. Sue pleaselast queston
3. Which of the following words shares the base word of "destination"? (1 point) destroy destiny destabilize destruction Is the answer "destiny"?
Monday, February 4, 2013 at 6:43pm

4th Grade Math
The chickens on a farm eat 3 times as much grain as the turkeys do per week. The chickens and turkeys eat a total of 52 pounds of grain every week. How much grain do the chickens and turkeys each eat every week? Any help would be appreciated, thank you in advance!
Monday, February 4, 2013 at 6:37pm

7th grade language arts Ms. Sue please
5. Which of the following describes the underlined part of this sentence from "LAFFF"? In spite of all I could do, my grades were nothing compared to Peter's. (1 point) simple sentence compound sentence independent clause dependent clause 6. Which of the ...
Monday, February 4, 2013 at 6:28pm

math
I need help teaching my 2nd grader how to come up with the answer. Easy for an adult..difficult to explain to a child. I am thinking of 2 numbers who sum is 15. One of the numbers is 9 more than the other. Got the 12 plus 3 part. Help me explain it in its simplest terms
Monday, February 4, 2013 at 5:47pm

math average!
My average is a 74 right now. My grades are 70( which counts as 60% as my grade and i have 2 more major test coming up) 94, 60 (which counts as 25% and i have about 5 more of this coming up) 90,100,83,91,71( i have about 3 more of these and they count as 15%) This was an ...
Monday, February 4, 2013 at 4:35pm

Environmental Science 11th grade
Discuss economic reasons that have caused many utilities to opt for coal-burning, rather than nuclear-powered, plants
Monday, February 4, 2013 at 12:09pm

Environmental Science 11th grade
What problems are associated with the long-term containment of nuclear?
Monday, February 4, 2013 at 10:47am

Trigonometry
Mountain Descent A road sign at the top of a mountain indicates that for the next 4 miles the grade is 12%. Find the angle of the grade and the change in elevation for a car descending the mountain.
Monday, February 4, 2013 at 1:45am

7th grade Language (probably easy to answer)
In the sentence ' Andy has driven many types of vehicles that have various controls.' What would many types, be? (Adverb,verb,pronoun,ect.) Also... In the sentence ' The car has a lot of blind spots which make it difficult to turn safely.' What would lot, which...
Sunday, February 3, 2013 at 5:20pm

Grade 10 Math
The Brooklyn Bridge in New York City is a suspension bridge that crosses the East River and connects Brooklyn to the island of Manhattan. If the origin is placed at the top of one of the cable suport towers, as shown, the shape of a cable that supports the main span can be ...
Sunday, February 3, 2013 at 12:33pm

8th grade science
Good hypothesis for does the human tongue have definite areas for certain tastes
Sunday, February 3, 2013 at 10:19am

math
franklin school has 3 boys for every 4 girls in the fifth grade.there is 140 students in the fifth grade. A. how many are boys and how many are girls??? pleassseee helpppp meeeeee!!!!
Saturday, February 2, 2013 at 12:12pm

3rd grade math
use a table and play money to solve the problems. item prices: postcard($1.13), keychain($3.87), park ranger patch($5.33) and stuffed animal($8.79). Jamie spent $5.00 on postcard and key chain, Darla sepent $9.20 on park ranger patch and key chain and Abraham had $5.10. Who (...
Thursday, January 31, 2013 at 6:24pm

math 4th grade
adding and subtracting mixed numbers in lowest terms; 5 1/2 - 2 4/5, I got as far as 3 46/10 but don't know how to break it down into lowest term.
Thursday, January 31, 2013 at 4:02pm

math 4 th grade
In which total oes the digit 3 represent 3 tenths? a. 12 quarters, 2 dimes, 3 pennies b. 3 quarters, 5 nickles, 3 pennies c. 2 quarters, 3 dimes, 5 pennies d. 2 quarters, 8 dimes, 5 pennies
Wednesday, January 30, 2013 at 9:04pm

7th grade math
what is the function of the following table: a tree that has a height of 12 feet will have a shadow of 10 feet
Wednesday, January 30, 2013 at 7:31pm

Physics (As Level) 12 Grade
2) An aircraft lands on a runway at a speed of 40 meters per second (ms^-1) and brakes to a halt in a distance of 860m. Calculate a) The Braking time. B) The deceleration of the aircraft.
Wednesday, January 30, 2013 at 6:07pm

4th grade math
In helping my 4th grade grandson last night with his math, he had problems like this 93 * 18. I asked what the asterisk meant and he said the teacher said to "figure it out"
Wednesday, January 30, 2013 at 11:38am

Math 6th grade
What is the largest fraction that can be made out of these numbers? 4,7,9
Wednesday, January 30, 2013 at 11:32am

Math 4th Grade
200 coins are sorted and kept 3 bags. The first bag has 20 more coins than the second bag. The second bag has twice as many coins as the third bag. How many coins are there in the third bag?
Tuesday, January 29, 2013 at 9:31pm

math 4th Grade
a dictionary and a calculator cost $80. If the calculator cost $20 more than the dictionary, find the cost of the dictionary.
Tuesday, January 29, 2013 at 9:20pm

Math (9th grade)
Write an equation in point slope form of a line parallel to 12x-2y=6 and passes through the point (-4,-3)
Tuesday, January 29, 2013 at 6:44pm

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