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Chem Lab
I did a chem lab and have to figure out some stuff off of some data I found during the lab Weight of empty crucible and cover: 19.74 g Weight of crucible, cover and hydrated salt: 22.74 g Weight of crucible, cover and hydrated salt after 1st heating: 22.13 g Weight of crucible...
Monday, October 8, 2012 at 9:52pm
7th grade math ASAP quick please
1. If a ping pong ball falls from the top of a building that is 168 feet high, how many seconds will it take the ball to hit the ground? Remember, the formula for distance is d = 16t^2. (1 point) 1 3.2 10.5 16 2. The volume of a box can be found by multiplying the length times...
Monday, October 8, 2012 at 9:09pm
Finite Math
A biology quiz consists of 10 multiple -choice questions. 7 must be answered correctly to receive a passing grade. If each question has 4 possible answers, of which only one is correct, what is the probability that a student who guesses at random on each question will pass the...
Monday, October 8, 2012 at 8:15pm
Algebra Grade 7
suppose you have ABC with AB=5, BC=7, and CA=10, and also EFG with EF=900, FG=1260, and GE=18/00. are these triangles similar, and if so what is the scale factor?
Monday, October 8, 2012 at 8:08pm
ELEMENTARY
How to prepare PSAT test from 3rd grade
Monday, October 8, 2012 at 7:43pm
7th grade math
Q:William practiced guitar 1 1/3 hours on monday and 5/6 hour on tuesday. How many total hours did he practice? A: A) 1 1/2 B) 1 2/3 C) 2 1/3 D) 2 1/6
Monday, October 8, 2012 at 2:57pm
Math
In a middle school 5th grade class there are 5 girls for every 4 boys. all together the class has 27 students. How many boys are in the class?
Monday, October 8, 2012 at 2:44pm
fractions 7th grade
ty's football practice lasted 2 1/2 hours. if 1/4 of the time was spent catching passes, how much time was spent catching passes?
Sunday, October 7, 2012 at 7:52pm
algebra 2
i'm trying to solve this system of equations with 3 variables 5a-b+3c=5 2a+7b-2c=5 4a-5b-7c=-65 i tried to make the first equation like a=something so i could substitute it in to the 2nd equation, however i get decimals so it doesnt work how do i do this problem?
Sunday, October 7, 2012 at 1:29pm
writing (persuasive essay)
Hi. I'm in 10th grade and our teacher assigned us a persuasive essay to write in class over a topic that we debated about for the last two weeks. Every team had a different topics (mine was school should start from 11 am. to 5 pm), but now we're going to write a ...
Sunday, October 7, 2012 at 1:21pm
math
Of 55 students in the fifth grade, 43 are fans of the local basketball team and 35 are fans of the local hockey team. Twenty - three students are fans of both teams. How many students are fans of the hockey team but not the basketball team?
Saturday, October 6, 2012 at 8:08pm
please help
HI, MY dughter is studying 3rd grade.how to prepare Tsat test in math,english.can u tell me .can u send me links.Tennese state.that links is not working.can u send me another links
Saturday, October 6, 2012 at 5:05pm
English
I'm a 7 Letter Words, You Read me daily, My 5, 6, 7th Letter increases every Year. 3rd and 4th Letter are the Same. My 3rd, 2nd and 5th Letter Covers 75% of the World. What am i?.
Saturday, October 6, 2012 at 4:03am
that link is not working
HI, MY dughter is studying 3rd grade.how to prepare Tsat test in math,english.can u tell me .can u send me links.Tennese state
Friday, October 5, 2012 at 11:25pm
elementery
HI, MY dughter is studying 3rd grade.how to prepare Tsat test in math,english.can u tell me any links
Friday, October 5, 2012 at 10:34pm
Fifth grade English
What is the plural form of staff? Not sure if it should be staff or staffs. Thank you for helping. Britt
Friday, October 5, 2012 at 10:28pm
7th grade math Ms.Sue please
1. Which of these numbers can be classified as both real and irrational? 5.858585858 63.4 square root 21 square root 36 2. Which is both a real number and an integer? 23 1 over 4 square root 27 3.402538 3. Which of these numbers is classified as both real and rational? square ...
Friday, October 5, 2012 at 7:26pm
Chemistry
Muriatic acid is the common name of industrial-grade hydrochloric acid (HCl). One of its uses is to clean or etch concrete in preparation for sealing or painting. It is typically sold in 5.00 gallon buckets, with a concentration of 11.7 M. a.What volume of concentrated ...
Friday, October 5, 2012 at 11:01am
Math
A piece plywood 24 inches wide is cut into strips 2 and a half inches wide, how many strips of this with can be cut. Please help,7th grade.
Friday, October 5, 2012 at 12:12am
7th grade art ms.sue asap please
1. The ingredients, or building blocks, of an artwork (1 point) studies of art principles of art categories of art elements of art 2. The name of a color (1 point) value intensity hue fue 3. The arrangement of hues in a circular format (1 point) color circle color sphere color...
Thursday, October 4, 2012 at 9:59pm
7th grade math question ms. sue
the area of a square boxing ring is 484^2. What is the perimeter of the boxing ring? Isn't the answer 121????
Thursday, October 4, 2012 at 9:29pm
Algebra Grade 7
Pentagon ABCDE ~ Pentagon FGHIJ. Find BC for GH =12, IJ = 15 and DE = 10
Thursday, October 4, 2012 at 7:57pm
Algebra Grade 7
What would be the scale factor if an airplane is 87 feet long; 2 inches = 15 feet
Thursday, October 4, 2012 at 3:38pm
statistics
You are given the following data. Number of Absences Final Grade 0 95 1 91 2 82 3 69 4 67 5 58 - Find the correlation coefficient for the data. - Find the equation for the regression line for the data, and predict the final grade of a student who misses 3.5 days.
Thursday, October 4, 2012 at 11:05am
Intergated chemistry/physics
A 200 pound go-kart with a speed of 20 miles/hour collides with a 2nd go-kart (that was at rest) and causes it to move at a speed of 15 miles per hour. What is the mass of the 2nd cart if the first kart came to a stop upon collision?
Thursday, October 4, 2012 at 9:36am
Intergated chemistry/physics
A 10 pound bowling ball with a speed of 2.0 meters/second hits a 6 pound bowling ball. If the 10 pound bowling ball stops after the collision, what is the resulting speed of the 2nd ball in meters/second
Thursday, October 4, 2012 at 9:34am
7th grade math help
I need help figuring out the square roots of: 1/36 1/121 4/24
Wednesday, October 3, 2012 at 9:24pm
7th grade math help square roots
4. Wei-Min makes a square quilt that has an area of 100 square feet. It has 25 square blocks, each the same size. What is the length of each side of a block? 2 feet 4 feet 6 feet 10 feet What is the value of "x" if 25^2 = x? 125 0 625 5
Wednesday, October 3, 2012 at 9:21pm
7th grade math Ms. Sue
I still cannot figure this one out can you please tell me... 11/12 + (-2/3) = ? The answer choices are 1/4 13/12 -1/6 -7/12
Wednesday, October 3, 2012 at 8:58pm
7th grade math help quick
11/12 + (-2/3) = ?
Wednesday, October 3, 2012 at 8:42pm
7th grade fraction subtracting ms. sue help asap
10 5/18 – 8 5/6 (1 point) 2 5/9 2 13/18 1 4/9 1 11/18
Wednesday, October 3, 2012 at 8:41pm
7th grade math - can't figure this out!
A certain computer can perform 10^5 calculations per second. How many calculations can it perform in 10 seconds? I just cannot seem to solve this problem can somebody explain how to do this step by step?
Wednesday, October 3, 2012 at 8:11pm
7th grade Math quick help Ms. Sue
Can you check to see if tese are right? 1. What is 0.68 written as a simplified fraction? 68/100 17/25 100/68 34/25 2. Mrs. Whimsey’s class is having a pizza party. If there are 16 students and 4 pizzas cut into 8 slices, what answer choice represents the fraction of one ...
Wednesday, October 3, 2012 at 7:37pm
7th grade math help asap please
1. -1/9 + (-5/7) = ? 2. 11/12 + (-2/3) = ? 3. What is the difference between an irrational number and an integer? 21. A length of ribbon is three and one-half yd long. How many pieces one and five-ninths yd long can Joy cut from the length of ribbon? (1 point) 1 2 3 4 How do ...
Wednesday, October 3, 2012 at 6:39pm
Math
There are twice as many girls as boys in the 4th grade classes at Joe's school. There are a total of 81 4th graders. How many boys and girls are there in the 4th?
Wednesday, October 3, 2012 at 6:07pm
Geography(Eighth Grade)
How did Europeans feel about Columbus's first voyages to america? Were they happy because they found new land or?
Wednesday, October 3, 2012 at 3:56pm
English 11th grade
Analyze the sentence to select the adverb clause, subordinating conjunction, and the word(s) modified in the appropriate boxes below. Please get to bed early since you have a test tomorrow.
Wednesday, October 3, 2012 at 9:35am
3rd grade Math
California has more national parks than many other states. The sum of the two digits in its number of parks is 6. Both digits are even. If California has fewer than 30 national parks, how many does it have?
Tuesday, October 2, 2012 at 11:35pm
math 8th grade
10(square root400 - 15) 10(20-15) 10(5)= 50 would this be correct?
Tuesday, October 2, 2012 at 9:45pm
7th grade social studies
1. In 1300, the Holy Roman Empire included parts of all the following modern countries EXCEPT (1 point) Italy. France. Spain. Germany. My answer is 1. Germany Is this correct?
Tuesday, October 2, 2012 at 8:44pm
Ap world history, 10th grade
What was the most important "stepchild" of the Byzantine civilization? Poland, the middle east, Italy, or russia
Tuesday, October 2, 2012 at 7:08pm
Math
the average for a grade on a test taken by 20 students was 75. When one more student took the test the class average became a 76. What score did the student make?
Tuesday, October 2, 2012 at 6:51pm
3rd Grade Math
There are 25 students in Mrs. Roberts 3rd grade class. There are 9 more boys than girls in the class. How many boys and girls are in Mrs. Robert's class? How can I explain this to my 8yr old in 3rd grade? I've got myself so confused in the process of trying to figure ...
Tuesday, October 2, 2012 at 5:57pm
math
Math word problem: There are 25 students in Mrs. Roberts 3rd grade class. There are 9 more boys than girls in the class. How many boys and girls are in Mrs. Robert's class.
Tuesday, October 2, 2012 at 5:40pm
Science
Can you check my answers for me? The answers I picked have a check mark next to them. Thank you. 1. Darwin’s theory of evolution by means of natural selection proposes that changes happen from generation to generation from ____________ of an organism to the environment. (...
Tuesday, October 2, 2012 at 10:40am
college stats
can someone please explain the steps: suppose that the grade point average,denoted by X,of a university student is Normally distributed with the mean 2.786 and standard deviation 0.375 A). a student is on the deans list if her GPA exceeds 3.746. What percent of the students ...
Monday, October 1, 2012 at 11:47pm
hard 5th Grade Math
Two 5th grade classes raised money for their local animal shaelters.There are 20 students in Class A. Each student raised 12$. There are 26 students in Class B raised 1.5 times as much as each student in Class A. A. How much money was raised altogether in both classes? Show ...
Monday, October 1, 2012 at 9:46pm
6th grade math
how many hours dose it take for a rino to run 158,400 feet
Monday, October 1, 2012 at 9:01pm
math
there are 15 boys and 18 girls in fifth grade. Find the ratio of boys to girls in fifth grade.(how do I get the answer) can someone show me how to work the problem
Monday, October 1, 2012 at 8:52pm
MATH
tHERE ARE 4 FIFTH GRADE CLASSES IN A SCHOOL. EACH CLASS Has 24 STUDENTS. fOR EACH GYM PERIOD, TWO FIFTH GRADE CLASSES TAKE GYM TOGETHER. tHERE ARE 10 GYM PERIODS IN ALL DURING SCHOOL WEEK. wHAT INFORMATION IS NOR NEEDED TO FIGURE OUT HOW MANY TOTAL STUDENTS TAKE A GYM PERIOD ...
Monday, October 1, 2012 at 8:01pm
7th grade science Ms. Sue
Violent storms generally form along _____. (1 point) occluded fronts cold fronts warm fronts stationary fronts 2. Areas of low pressure usually have _____. (1 point) cloudy weather good weather descending air none of the above These are my answers. Are they correct? 1. cold ...
Monday, October 1, 2012 at 7:32pm
7th grade math
I need help on these two questions because i have no clue what to say.... What caused the rise of the feudal system in Japan? More than 100 years after Akbar's death, the Mughal Empire began to fall apart. What were two of the reasons that caused this to happen? Thanks, -...
Monday, October 1, 2012 at 7:27pm
math 7th grade
so is it okay if you explain to me why we multiply first and then divide???
Monday, October 1, 2012 at 7:23pm
Math 7th grade
1) of the dolls in mo's doll collection, 1/5 have red hair. of these 3/4 have green eyes. what fraction of Mo's dolls collection have both red hair and green eyes? 2) ( Use measurement conversions) find 1/2 of 1/4 of a gallon. 3) Cheryl is organizing her movie ...
Monday, October 1, 2012 at 7:04pm
history
What are three good points to talk about in a research paper about child labor in the 1800s? 10th grade level please.
Monday, October 1, 2012 at 5:43pm
7th grade math
What is three-eighths written as a decimal? (1 point) 2.3 repeating 0.375 .3 repeating 2.667
Monday, October 1, 2012 at 5:37pm
7th grade math help please
12. Which of the following numbers is an example of an integer? square root of five square root of nine one-third 0.8 13. Which number is equivalent to 4/5? 25/100 0.2 16/100 0.8 14. Riding the bus, Jasmine uses two-thirds of her money for bus fare. What is this number as a ...
Monday, October 1, 2012 at 5:29pm
MATH 4TH GRADE
THINK OF ALL THE WAYS TO BREAK 10 X 6?
Monday, October 1, 2012 at 5:27pm
7th grade math help quick please
Which is irrational? 0.117117117 . . . 0.8596873205 . . . 0.812812812812 . . . 0.605605605 . . . 6. If there is 1/2 of a pizza and Jonas wants only 1/3 of it, how much of the pizza will he eat? (1 point) one-fifth two-fifths one-sixth two-sixths One nanometer is about 0....
Monday, October 1, 2012 at 5:24pm
7th grade math ms. sue please help
If Fran’s fudge recipe calls for 2 and 1/2 cups of sugar and she increases it by 2/5 of a cup, how much sugar does she use? a. 2 2/10 b. 2 3/7 c. 2 4/9 d. 2 9/10 is the answer d because 2 1/2 plus 2/5 equals 2 9/10? If it is incorrect, then why? Thanks!
Monday, October 1, 2012 at 5:19pm
math
Two friends decide to cycle to a picnic spot the first person cycles 5 and a 1/2 km/hour and 2nd cycles 6 and a3/4 km/hour to make up for being slow the first person starts out two and half hour earlier after how much time and distance will the 2nd person catch up with the ...
Monday, October 1, 2012 at 11:28am
Pre-Algebra(7th Grade)
I dont know how to do area on a shape if it has missing numbers.. .also i need help on division with decimals...
Sunday, September 30, 2012 at 6:59pm
Math riddles for 4th grade
divide me by 10 and 3 remians. a square number my first digit be. My second digit is the product of1 and 3. All together I am greater than 50.
Saturday, September 29, 2012 at 5:03pm
Algebra grade 7
one day victor was riding in the car with his dad and saw a sign that read 500 km to Indianapolis. about how many hours did it take to get to Indianapolis if the car was traveling at 60 mph. 1 mi = 1.61 km
Saturday, September 29, 2012 at 5:01pm
Algebra grade 7
find a ratio equivalent to each ratio. then use the ratios to write a proportion 8/14 4/18.. I am so confused. Pleasse help me???? Thank ya'll.
Saturday, September 29, 2012 at 1:54pm
human resources
I do not understand the assignment my teacher gave me if possible can you find me an article so i can do my presentation that meets the standards that my teacher wants. You are required to report on one (1) What’s News article this semester. Five minutes will be allotted ...
Saturday, September 29, 2012 at 1:47am
7th grade language arts
Choose the demonstrative pronoun is the following sentence: "This invitation fell out of her backpack." her of backpack this
Friday, September 28, 2012 at 9:08pm
7th grade art
1. The ingredients, or building blocks, of an artwork (1 point) studies of art principles of art categories of art elements of art 2. The name of a color (1 point) value intensity hue fue 3. The arrangement of hues in a circular format (1 point) color circle color sphere color...
Friday, September 28, 2012 at 9:06pm
Sociology/Psychology
I'm taking Sociology 1st semester and Psychology 2nd semester when I go to the 9th grade. I'm just curious but is there any topics (interesting ones) in Sociology and Psychology.
Friday, September 28, 2012 at 8:52pm
7th grade science Ms. Sue please help if you can
1. Violent storms generally form along _____. (1 point) occluded fronts cold fronts warm fronts stationary fronts 2. Areas of low pressure usually have _____. (1 point) cloudy weather good weather descending air none of the above 5. Tornadoes can form when wind at different ...
Friday, September 28, 2012 at 7:48pm
7th grade science weather
1. Relative humidity is a measure of the amount of _______ that air is holding compared to the amount needed for saturation at a specific temperature. water vapor particles heat none of the above 2. Low, layered gray clouds that produce light precipitation are _____ clouds. ...
Friday, September 28, 2012 at 7:08pm
7th grade math standard form scientific notation
In standard form: 5. 3.2 x 10^3 7. 4.1 x 10^8 9. Write the average weight of a blue whale, 2.6 x 10^5, in standard form. 15. 2.5 x 10^-3 17. 1.05 x 10^-2 19. Write the size of a grain of very fine sand, about 9.35 x 10^-3 cm, in standard form. Can somebody help? I have been ...
Friday, September 28, 2012 at 7:05pm
7th grade math questions Scientific Notation
19. Write the size of a grain of very fine sand, about 9.35 x 10^-2 cm, in standard form. 31. The population of the US is expected to be 392 million people by 2050. Write this answer in scientific notation. 37. Write 10^29 - 10^28 in scientific notation. Thanks! -Delilah :)
Friday, September 28, 2012 at 6:55pm
7th grade math NASA problem
5. NASA's apollo program lasted nine years (1963-1972) and included 6 moon landings. Write the cost of the Apollo project, $25,000,000,000, in scientific notation. Is the answer 2.5 x 10^10????
Friday, September 28, 2012 at 6:52pm
7th grade math check my answers please quick
11. 17, 200 written in scientific notation is 1.7 x 10^5 21. 0.00105 written in scientific notation is 1.05 x 10^-3 are these correct?
Friday, September 28, 2012 at 6:32pm
7th grade scientific notation help Ms. Sue
Write each number in scientific notation. 1. 4,800 2. 17, 200 3. 180,000 4. 343, 502 12. 0.00581 13. 0.00105 14. 0.0000078 15. 0.000027 16. 0.000000132 17. 0.000000009
Friday, September 28, 2012 at 6:05pm
7th grade social studies
Explain the quote by Samuel de Champlain in your own words. "Through (exploration) we gain knowledge of different countries, regions and kingdoms; through it we attract and bring into our countries all kinds of riches; through it... Christianity (is spread)in all parts ...
Friday, September 28, 2012 at 6:03pm
10th Grade Literary Essay
What does F. Scott Fitzgerald suggest about the state of the American Dream, the people who pursue it, and the impact of that pursuit through his depiction of Jay Gatsby and the people in Gatsby’s life? Include specific examples, quotations, and supporting details from ...
Friday, September 28, 2012 at 1:17pm
sixth grade math
Which shape does not have two pairs of parallel sides? A. rectangle B. square C. parallelogram D. trapezoid
Friday, September 28, 2012 at 3:16am
math
not a Q but wanted to say tks for help last nite. I'm 9 & live w/ my two 10y/o nephews AND we are in the same 4th grade class. We needed help and we all wanted a chance to post on this awesome site, so tks a bunch for helping! Even though our papers were marked wrong on ...
Thursday, September 27, 2012 at 8:02pm
7th grade math - Scientific Notation basics
1. The area of Greenland is 840,000 square miles. What is this number in scientific notation? 2. What is this number in standard form? 5.75 x 10^9 3. In a recent year the world production of wheat was about 5.2 x 10^8 metric tons. What is this number in standard notation?
Thursday, September 27, 2012 at 7:24pm
7th grade math - scientific notation help
12. 0.00581 13. 0.00105 14. 0.0000078 15. 0.000027 16. 0.000000132 17. 0.000000009
Thursday, September 27, 2012 at 7:22pm
7th grade math help - quick, please.
Write each number in scientific notation. 1. 4,800 2. 17, 200 3. 180,000 4. 343, 502
Thursday, September 27, 2012 at 7:20pm
6th grade Math
I got a problem wrong and I don't know why. Here it is: A highway construction warning sign blinks on and off. In all, the sign is on for 0.88 of each minute. For how many seconds is the sign on in 5 minutes? I multiplied 0.88 x 5 and got 4.40 but it was marked wrong. What...
Thursday, September 27, 2012 at 7:02pm
6th grade math
Which shape does not have two pairs of parallel sides? A. rectangle B. square C. parallelogram D. trapezoid
Wednesday, September 26, 2012 at 11:11pm
Statistic
Final averages are typically approximately normally distributed with a mean of 78 and a standard deviation of 11. Your professor says that the top 6% of the class will receive an A; the next 24%, a B; the next 41%, a C; the next 18%, a D; and the bottom 11%, an F. (Give your ...
Wednesday, September 26, 2012 at 10:25pm
math
help from the same class!! When I am rounded to the nearest hundred, I am 3,300. The diiference between my ones and thousands digits is 1. My tens digit is the same number as my ones digit. I can be two different numbers. Who am I?!
Wednesday, September 26, 2012 at 8:51pm
7th grade math
1. The area of Greenland is 840,000 square miles. What is this number in scientific notation? (1 point) 840 x 105 84 x 10–5 8.4 x 105 8.4 x 10–5 2. What answer represents this number in scientific notation? 0.00000916 (1 point) 916 x 10–8 9.16 x 10–6 916 x ...
Wednesday, September 26, 2012 at 7:52pm
7th grade Science help
1. _______ is energy that flows from an object with a higher temperature to an object with a lower temperature. (1 point) Heat Radiation Potential Chemical 2. The transfer of energy that occurs when molecules bump into one another is called _____. (1 point) radiation ...
Wednesday, September 26, 2012 at 7:51pm
7th grade Art
1. This element of art is used to create depth in a picture. (1 point) shape pattern space texture 2. This technique is used to angle the lines of roads and buildings in a picture. (1 point) aeriel perspective vanishing point linear perspective atmospheric perspective 3. This ...
Wednesday, September 26, 2012 at 7:50pm
7th grade socal studies
1. According to Confucius, a society will be healthy if people (1 point) choose a ruler who inspires fear. obey their rulers without question. treat each other with respect. give each other money. 2. Two key products China traded with other countries were (1 point) silk and ...
Wednesday, September 26, 2012 at 7:49pm
7th grade math
5. Taylor completed the problem below. Describe and correct the error in the problem. 2–4 = –2 • –2 • –2 •–2 =16 (1 point) 1. Taylor changed the negative exponent to a negative base. 2. (0 pts) Taylor did not multiply correctly. The ...
Wednesday, September 26, 2012 at 7:18pm
math grade 10
A cube has a volume of 1280 cubic feet. Determine the edge length of the cube as a radical in simplest form.
Wednesday, September 26, 2012 at 6:46pm
2nd grade math
____= 8+2?
Wednesday, September 26, 2012 at 3:01pm
6th grade math
still having problems on probability question with ratios and percents. If you surveyed 30 people (21 girls and 9 boys) and they picked differnt song genre's as their favorite. 3 out of the 21 girls picked country and 0 of the 9 boys picked country. The question is are ...
Wednesday, September 26, 2012 at 12:18pm
6th grade math
in a pet store, 1/6 of the puppies are black and 1/4 are white. what fraction of the puppies are black or white?
Wednesday, September 26, 2012 at 9:54am
6th grade Math
Having a problem on a proportion question. The problem is you have surveyed 30 people on their favorite song. 21 females and 9 males. The most popular genres are pop, country, and hip hop. The ratio for females who picked pop is 18 to 21 and the raio of males who picked pop is...
Wednesday, September 26, 2012 at 7:08am
Physics. Please help. Thanks
in the last three years, Fred's basketball team won 30 more games than they lost. if they won 150 games, what was their ratio of wins to losses? What are three different ways to show the ratio? what is the unit rate if Ramon drives his car 180 miles in 3 hours? what is the...
Wednesday, September 26, 2012 at 2:50am
7th grade science
1) a classmate states that igneous rock must always become sedimentary rock next, according to the rock cycle. explain why this statement is incorrect. 2)why would granite have larger crystals than igneous rock s formed when lava cooled above the earth's surface?
Tuesday, September 25, 2012 at 11:00pm
3rd grade math
what combinations of president and vice president could there be ?
Tuesday, September 25, 2012 at 9:28pm
math
5th grade math equations
Tuesday, September 25, 2012 at 9:05pm
math
5th grade equstions
Tuesday, September 25, 2012 at 9:04pm
Math I need help Ms. Sue please answer!
6th Grade Math: Write 144 as a product of prime factors. Then write the prime factorization using exponents.
Tuesday, September 25, 2012 at 6:01pm
math 3rd grade
The question is show how the commutative property of addition works using 2,3,and 5.
Tuesday, September 25, 2012 at 4:47pm
Lang Arts
Ever since Lisa auditioned for the musical Annie in the third grade, she had been seriously interested in musical theater. She loves to sing, dance, and act. She performs in two or three shows in her city each year. This year, Lisa was excited to audition for the school ...
Tuesday, September 25, 2012 at 4:13pm
Grade 11 Math
Here's the question: You are attending a very loud concert. To avoid permanent ear damage, you decide to move farther from the stage. Sound intensity is given by the formula: I = k/d squared K= constant D = distance from the listener to the source of sound. Determine an ...
Tuesday, September 25, 2012 at 9:37am
Math
The volleyball court -if it id 80 ft long and 50 ft wide, how would you find the dimensions of the court? Explain please! Remember that I am a 6th grader. Please don't give me a 10-12th grade answer.
Monday, September 24, 2012 at 8:50pm
math
an object released from rest will fall 16t^2 feet, t seconds after it is dropped. 2 pebbles are dropped, one after the other, from a cliff that is 64 feet high. the 2nd pebble is released the instant the first pebble has fallen exactly one foot. how far above the ground is the...
Monday, September 24, 2012 at 4:09pm
6th grade math
what does the |#| mean? Thanks
Sunday, September 23, 2012 at 10:29pm
6th grade math
Simplify: |15|
Sunday, September 23, 2012 at 10:23pm
6th grade math
What is absolute value?
Sunday, September 23, 2012 at 10:21pm
Physics
A) Gravity pulls an area of wet soil and rock downward in a landslide B) An ... Many people know that the weight of an object varies on different planets, but did ... If the Earth's gravitational force causes a falling 74 kg student to accelerate .... the acceleration of ...
Sunday, September 23, 2012 at 1:00pm
science 7 grade
You place 75 mL sea wter in a graduated cylinder with a mass of 55 grams mass of sea water and cylinder together is 140 grams what is the density of the sea water g/mL
Sunday, September 23, 2012 at 12:35pm
statistics
In a large class, there were 220 students who wrote both the midterm and the final exam. The standard deviation of the midterm grades was 14, and that of the final exam was 20. The correlation between the grades on the midterm and the final was 0.60. Based on the least squares...
Saturday, September 22, 2012 at 1:20am
7th Grade Science
Please help me with these questions. This is not homework. I am just trying to figure out some things that I need help with. When separating mixtures what is filtration? what is distillation? what is crystallization? what is chromatography? Thank you, sk8rgurl99
Friday, September 21, 2012 at 10:31pm
chemistry grade 11
A molecule of CHCl3 (chloroform), has the same shape as a molecule of carbon tetrahydride, CH4. But carbon tetrahydride’s boiling point is -164º C and chloroform’s boiling point is 62 ºC. Explain the difference between the boiling points of the two ...
Friday, September 21, 2012 at 9:20pm
science
how to prepare 0.100M HCL solution when laboratory grade concentrated by hydrochloric acid has concentration of 37%.what volume of acid is necessary to prepare 500mL of 0.100M of HCL
Friday, September 21, 2012 at 9:57am
3rd grade math
your teacher has told you to subtract by adding on to find the difference in this problem: 71-36. what do you do first?
Thursday, September 20, 2012 at 11:28pm
Math
This isn't a question for math homework but i have a really low grade in math and i want to raise it up. What can i do to get my grade up because i am getting progress reports on Monday and i want to get a really good grade.PLEASE HELP!!!!
Thursday, September 20, 2012 at 8:59pm
7th grade math
How do you arrange the numbers 2 4 5 and 6 ans insert the symbols "-" and "x" in a way that u follow PEMDAS/ order of operations to get the answer 8
Thursday, September 20, 2012 at 6:06pm
9th Grade Biology
Assume that the fish have an average mass of 280g. The average caloric value is 8kcal/g. The heron is able to digest 60% of the fishes’ mass. How many will it need to eat to sustain its caloric intake of 3,000kcal/day?
Thursday, September 20, 2012 at 4:54pm
7th Grade Math
How do you identify whether a ratio is a rate??? Thank you for all help.
Thursday, September 20, 2012 at 9:18am
4th Grade Math
I have an 8 in the ten thousands place, My hundreds digit is greater then my ten thousands digit, My ones digit is the number of right angles in a rectangle, my tens digit is the difference between thirteen and my ten thousands digit, my value is less that 87 thousand but ...
Wednesday, September 19, 2012 at 8:04pm
4th grade math
Find the mystery number. It is a 4 digit odd number. All the digits are different. None of the digits are 0 or 9. The tens digit is twice the ones digit, and the hundreds digit is twice the tens digit. The thousands digit is one less than the hundreds digit.
Wednesday, September 19, 2012 at 7:31pm
6th grade math
I had to convert 2500 millimeters to centimeters.I think it's 250,please check. Thanks!
Wednesday, September 19, 2012 at 6:45pm
Pre-Algebra 7th grade.
I have prealgebra with order of operations with a line dividor with a fraction line/divider. It says: 94-6 ____ 66(divided by) 6
Wednesday, September 19, 2012 at 6:20pm
Biology 9th grade
Describle the following cellular structures and functions?
Wednesday, September 19, 2012 at 6:15pm
math,social studies and health
Do you know any other websites where I can calculate my grade point average. Thanks.
Wednesday, September 19, 2012 at 5:00pm
3rd grade Math
Kiara bought 78 stickers .She bought 6 strips of 10 and some singles How many singles did she buy.? Write an equation for each combination of singles and strips.
Wednesday, September 19, 2012 at 4:24pm
Geometry 9th grade
One of two supplementary angles is 4 times the other. Find the larger angle.
Wednesday, September 19, 2012 at 4:17pm
Math
Explain how to draw a picture to find 3 x 0.9. Grandma needs help for her 5th grade granddaughter!
Wednesday, September 19, 2012 at 3:57pm
math,social studies and heaalth
I am in middle school and I want to know what my grade point average is. Do you know any websites where I can calculate my grade point average. Thanks.
Wednesday, September 19, 2012 at 3:53pm
3rd grade math
9,000+600+50+4 in standard form
Wednesday, September 19, 2012 at 3:33pm
SS8R: National Convention: The Female Voice Essay
I have this assignment for my Social Studies class about the National Convention. Well most of you know about the National Convention thing since you watch Republicans or Democratic. The essay is focusing on First Lady Michelle Obama and Ann Romney. They gave speeches at ...
Tuesday, September 18, 2012 at 5:36pm
Chemistry- rate laws
CH3CHO decomposes into methane gas and carbon monoxide gas. This is a 2nd order reaction. Rate of decomposition at 140 degrees Celsius is .10M/s when the concentration of CH3CHO is .010. What is the rate of the reaction when the concentration of CH3CHO is .50M? Have not been ...
Tuesday, September 18, 2012 at 10:18am
11th grade mths
Please check urgently .I have to submit the assignment A give an example of a function whose domain equals the set of real numbers and whose range equals the set? the set {-1,0,1} BGive an example of a function whose domain equals (0,1)and whose range equals [0,1] C.Give n ...
Tuesday, September 18, 2012 at 2:13am
4th grade math
I have 5 ones and 19 hundredths. What number am I?
Monday, September 17, 2012 at 10:00pm
6th grade math
Yes I am not smarter than a 6th grader. How do I show the math and in the simplest form for the following: A sixth grade class has 100 sheets of lightweight paper. They use 3/4 of the paper for a collection of class poems. What is the total thickness of the paper they use?
Monday, September 17, 2012 at 7:27pm
8th grade math
2 rectangular tables are put together short ends together. 10 people can be seated around the tables. Add 2 tables again short ends together. How many people can be seated around the tables? Is there an equation you can use?
Monday, September 17, 2012 at 4:40pm
11th grade maths
A.give an example of a function whose domain is {3,4,7,9}? and whose range is {-1,0,3} B.Find two different functions whose domain is {3,8}and whose range is {-4,1} C Explain why there does not exist a function whose domain is {-1,0,3} and whose range is [3,4,7,9} D.Give an ...
Monday, September 17, 2012 at 2:37am
Math
How do i figure out this question? There are two roads, one has a grade of 20% the other has an elevation of 15 degrees. Which road would be steeper?
Sunday, September 16, 2012 at 10:09pm
6th grade science
What two parts of the earth system is a paleontologist involved in? Thanks
Sunday, September 16, 2012 at 8:58pm
6th grade science
Is latitude the up and down lines on a map?Or the side to side lines? Thanks
Sunday, September 16, 2012 at 8:47pm
6th grade science
What is porosity and permeability? Thanks
Sunday, September 16, 2012 at 8:26pm
6th grade science
What is a A topographic map used for? thanks
Sunday, September 16, 2012 at 8:20pm
6th grade science
A topographic map would be most useful for which activity? A. locating the name of the road where your friend lives B. finding out how much rainfall your town receives each year C. finding the highest point in your city D. determining what kind of soil is in a nearby park
Sunday, September 16, 2012 at 8:17pm
Statistics
AJ DAVIS is a department store chain, which has many credit customers and wants to find out more information about these customers. A sample of 50 credit customers is selected with data collected on the following five variables: LOCATION (Rural, Urban, Suburban) INCOME (in $1,...
Sunday, September 16, 2012 at 5:54pm
physics
A car coasts (engine off) up a 30 degree grade. If the speed of the car is 25m/s at the bottom of the grade, what is the distance traveled by the car before it comes to rest?
Sunday, September 16, 2012 at 5:06pm
7th grade math
What is the difference? |-9| - |13| =? A)-22 B)-4 C)4 D)22
Sunday, September 16, 2012 at 4:49pm
7th grade math
Which of these statements is true when you add a positive, nonzero integer and a negative, nonzero integer? A)The answer may be positive or negative. B)The answer is always negative. C)The answer is always zero. D)The answer is always positive.
Sunday, September 16, 2012 at 3:50pm
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