Homework Help: 8th Grade

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3rd grade math
my daughter came home with input/output table don't understand how to do it Input Output 4 33 5 36 11 54 16 69
Tuesday, April 5, 2011 at 6:44pm

4th grade math
which expression represents the phrase three more than f? a.)3-f b.)f+3 c.)34+3 d.)f-3
Tuesday, April 5, 2011 at 5:46pm

4th grade math
write a decimal and 45/90 in simplest form
Tuesday, April 5, 2011 at 4:56pm

4th grade math
what is the prime factorization of 24? f.)8x3 g.)4x3x2 h.)2x2x2x3 j.)2x3x2
Tuesday, April 5, 2011 at 4:46pm

physics
A grade-school teacher insists that the the overall sound level in his classroom not exceed 64 dB at his location. There are 25 students in his class. If each student talks at the same intensity level, and they all talk at once, what is the highest sound level at which each ...
Tuesday, April 5, 2011 at 4:32pm

Spanish 8th grade
I have to write a sentence saying that I feel like doing some activity say playing baseball of football-it doesn't matter. We are suppose to use the tener form so I'm really confused. Thanks for helping. I thought it would Me gustaria(accent over i) jugar whatever but ...
Tuesday, April 5, 2011 at 3:46pm

Spanish 6 th grade-Please check
I have three questions-Which sentence is written correctly? Es un buen clase. Es un buena clase. Es un buena clase. I think it is Es un buen clase. Is that correct? Second question- The term pelota refers to any kind of sports ball. Pelota is a ball but what is confusing me ...
Monday, April 4, 2011 at 8:35pm

grade 5 math
what is 11 7th as a mixed number please i need help and its due tomorrow
Monday, April 4, 2011 at 5:15pm

Soanish-6th grade-Another question-Please check an
I have another question. If I have to use the word tener to express she is hot-I would say -Ella tiene calor, correct?
Monday, April 4, 2011 at 2:46pm

6th grade Spanish
I have two questions-Which sentence is written correctly? Es un buen clase. Es un buena clase. Es un buena clase. I think it is Es un buen clase. Is that correct? Second question- The term pelota refers to any kind of sports ball. Pelota is a ball but what is confusing me is ...
Monday, April 4, 2011 at 2:26pm

Math 11th Grade
Use Demoivre's Theorem to find the fourth roots of -16. Leave the four roots in trigonometric form. How the heck do i do this?
Sunday, April 3, 2011 at 9:34pm

French - SraJMcGin/Frenchy
In class we looked through some paintings of artists. After looking at them, we were given questions to answer, here they are. La Galerie D'art 1. Quelle est ta peinture preferee? Pourquoi? In English, this is what I want to say. [ My favourite painting was "The ...
Friday, April 1, 2011 at 8:50pm

math 8th grade
One of a pentagon's sides is 3 feet longer than the other. If the perimeter of the pentagon is 128m, how long is the longest side?
Thursday, March 31, 2011 at 5:37pm

algebra
i need help with 5th grade algebra my big bro. is helping me but i dont understand
Thursday, March 31, 2011 at 10:01am

math
What is 5,280 feet divided by 26 miles? 5th grade
Thursday, March 31, 2011 at 9:44am

Modern History
I've got to compose a thesis for my modern history paper on Hitler or Stalin. We are looking at studies of power, in particular the abuse thereof. I'm normally an A grade student but both thesis' I've proposed were either just a statement or too broad. I would ...
Thursday, March 31, 2011 at 8:20am

8th grade math
If two numbers are relatively prime, what is their LCM? Explain your reasoning and give 2 examples supporting your answer.
Wednesday, March 30, 2011 at 7:46pm

8th grade math
The denominator of a fraction is 4 more than the numerator. If both the denominator and the numerator are increased by 1, the resulting fraction equals ½. What is the original fraction?
Wednesday, March 30, 2011 at 7:45pm

math 4th grade
is 80 sq feet the size of a kitchen or is it 8 sq ft
Wednesday, March 30, 2011 at 7:42pm

ryhme scheme
6 grade poetry plz help im dislexic and retarted
Wednesday, March 30, 2011 at 7:28pm

math 4th grade
round each number to the underlined digit the number is 3,922,703 the underlined digit is in the millions place
Wednesday, March 30, 2011 at 6:26pm

5th grade input/output
How do I write the equation for this input 0 2 4 6 8 output 21 19 17 15 13?
Wednesday, March 30, 2011 at 5:23pm

4th grade math
pilar has 4 marbles in a bag .they are green,red,blue,and yellow.she chooses a marble without looking,replaces it,and then chooses another marble.if she wants to get a green marble exactly 1 time out out of the 2 draws,how many favorable outcomes are possible?
Wednesday, March 30, 2011 at 5:00pm

4th grade math
ted is an airline attendant and must wear a uniform to work.he has 3 shirts,4 slacks,and 2 ties from which to choose.how many outfits are possible with these choices?
Wednesday, March 30, 2011 at 4:44pm

grade 7 math
how can you figure out the length of a shadow if you walk closer to a lamppost?
Wednesday, March 30, 2011 at 4:36pm

math
girls are 1 half of the 5 grade class two tenths of these girls have red hair.red haired girls are what fraction of the 5 rade
Wednesday, March 30, 2011 at 4:02pm

College Algebra
Charlie can grade exams in 2 hours. It takes Mark 6 hours to grade the same exams. If they work together, how long will it take for them to grade the exams?
Wednesday, March 30, 2011 at 12:36pm

Percentages
To find out your grade on a calculator? you just divide your score out of the number of questions, right?
Wednesday, March 30, 2011 at 11:10am

7th grade math
find a solution method use backtracking to solve equation; 54=6 (4-7V) _______ 2 7b+1 =2 __________ 4 8(56+12 -1) =64 _____3______
Tuesday, March 29, 2011 at 10:59pm

7th grade
use backtracking to solve each e quations ?. 2x +1=9, 7k-3=32, 5(n-8)=25 2(2t-1)=14 8x-1=63 ,2x-5=15,
Tuesday, March 29, 2011 at 10:50pm

3rd grade math
Robert is writting a poem. The poem is divided into 5 stanzas and is on 2 pages. There are 60 lines in the poem. How many lines are in each stanza? show work please
Tuesday, March 29, 2011 at 9:50pm

7th grade math
Sally makes an ice cream sundae. She can choose from vanilla, chocolate, or strawberry ice cream, fudge or caramel topping, and sprinkles or nuts. Write an expression to show how to find all the different combinations. I'm not sure how to do this. Any help would be ...
Tuesday, March 29, 2011 at 9:29pm

5th Grade Math/Making a Duplicate
I need help with a worksheet that has a line going down with a y with positive numbers at the top and negative numbers at the bottom and the it has a line going across with an x with negative numbers on left and positive on right. It has a tic tac toe looking box in the ...
Tuesday, March 29, 2011 at 8:37pm

7th grade math
If the theoretical probability of rolling a 3 is 1/6, what is the experimental probability of rolling a 3 if the cube is rolled 300 times? Need a formula to show answer.
Tuesday, March 29, 2011 at 8:31pm

5th grade math
I am desperately trying to help my 5th grader figure out how many ways can we make this equation true 24 x 18 = 432 x
Tuesday, March 29, 2011 at 7:44pm

7th Grade Math
The area shaded is the matting and it is 64 square inches. What side length of a picture frame do you need to cover the entire picture? There is a 6inch square opening in the matting.
Tuesday, March 29, 2011 at 5:39pm

4th grade math
teacher divided students into groups of 3. each group of 3 wrote a report the had 9 pictures in it. the students used 585 pictures all together. how many students were there in all?
Monday, March 28, 2011 at 9:14pm

Math
I need help.I'm in 5th grade.The question is:12 less than the product of 5 and a number equals 8.What is the unknown number?Plz help
Monday, March 28, 2011 at 7:30pm

8th grade science
what contents in magma affects a volcanos explosive?
Monday, March 28, 2011 at 6:08pm

Pre-Algebra 7th Grade
I need help with this problem: Suppose you design a second model car that is 1/4 the size of the model car you designed in Excercise 9.What is the perimeter of the license plate on the second model car? Let me explain.The perimeter of the actual car's license plate was 36 ...
Monday, March 28, 2011 at 2:16pm

math
Samantha has an average of 92% on tree math test. If one of her grades was 84% and the other is 93%, what was the grade of her third test?
Monday, March 28, 2011 at 11:29am

7th grade math
what is an equation?
Sunday, March 27, 2011 at 11:34pm

7th grade math
2x+7=4x+3 ? 3x+6=5x+1 ? 2n+6=8N+3 ? 6N+9=9n+6 ?
Sunday, March 27, 2011 at 7:42pm

3rd grade math
16 1/2 x 33 = is it 792
Sunday, March 27, 2011 at 5:39pm

grade nine polynomials
(3/4) (1/-2) + (5/6) (-1/3)
Sunday, March 27, 2011 at 3:46pm

grade 9 polynomials
7 (r+3s) - 2(2r -9s) I am having a hard time solving can anyone please help
Sunday, March 27, 2011 at 2:46pm

Spanish-7th grade-Please check
I use spanishtypeit to do accents so I just said after phrase where I would have put the accent mark-thank you for checking 1.¿Cuál es tu deporte favorito? Mi deporte favorito es al golf. 2..¿Te gusta navegar en el internet? Si, me gusta navegar en el ...
Sunday, March 27, 2011 at 1:14pm

grade nine math Polynomials
Mr. Smart just bought a new dog named Fluffy. Mr Smart would like to enclose a play space for Fluffy in his back yard. The 5 side play space has the dimensions, in metres. They are x +11, 2x-4,3x. Write a simplified expression for the number of metres of fencing needed to ...
Friday, March 25, 2011 at 7:44pm

A LEVEL LAW
where can we students find the best answers attempted by the highest scorers in past years on A level Law exam? can we get any clear answer structure which helps us know how to attempt an A grade answer?
Friday, March 25, 2011 at 11:57am

3rd Grade Math
Could you check my answers? five-tenths 0.5 five-hundreths 0.05 three-tenths 0.3 three-hundreths 0.03
Thursday, March 24, 2011 at 9:49pm

3rd Grade Math Decimals
forty-hundreths four-tenths six-tenths sixteen-hundreths
Thursday, March 24, 2011 at 9:19pm

6th grade math
Tonya's car averages 240 miles for each 10 gallons of gasoline. How many gallons of gasoline will the car need travel 216 miles?
Thursday, March 24, 2011 at 8:39pm

4th grade
trains begin to stop at terminal b every morning at 5 a.m. and then come every 20 minutes for the next 3 hours. mr success needs 15 minutes to get to terminal b from his house. .if mr. success leaves his house at 7:08 a.m., what is the earliest time he can get the train at ...
Thursday, March 24, 2011 at 8:03pm

Writing
I need help on fixing my paper. Could you grade me on a scale of 1 to 12. The World of Technology Technology, Technology, that’s all we use today. There’s Facebook, Twitter, Myspace, and so many more. My opinion on technology is that I agree because many kids are ...
Thursday, March 24, 2011 at 6:53pm

Grade 12 Data Management math
I'm doing math through correspondence so material is not explained very well. I would appreciate if someone could explain this to me. This lesson is review of set theory and first degree equations. Indicate whether each of the following statements is true or false. If the ...
Thursday, March 24, 2011 at 3:17pm

3rd Grade Science Definicions
It tells the location of somethind.It is spesific.Every place on a map has this.What is it?
Wednesday, March 23, 2011 at 8:06pm

math
What does rule mean in second grade math
Wednesday, March 23, 2011 at 6:42pm

math
Use a tangent function to estimate the grade resistance of a 2200-lb car travelling on a 2.4° grade. Round your answer to the nearest pound.
Wednesday, March 23, 2011 at 6:05pm

math
If a 4th grade with 140 students has 3 boys for every 4 girls how many are girls? how many are boys?
Wednesday, March 23, 2011 at 5:49pm

Spanish 6th grade
How do I say a ham sandwich or a cheese sandwich? For cheese sandwich is it el sandwich de queso? For ham sanwich is is el sandwich de hamon? I'm not sure how to spell ham
Wednesday, March 23, 2011 at 11:39am

8th grade science
The loudness of sound can be measured in decibels. Do you think loudness is a vector or not? Can you explain why or why not.
Wednesday, March 23, 2011 at 1:01am

Grade 12 Chemistry
Determine the concentration of a calcium chloride solution if 1.75 L of the solution contains 0.125 mol of calcium chloride.
Tuesday, March 22, 2011 at 9:50pm

5th Grade Math
I am a mom trying to help my child with their math HW. But this question has us stumped. I've seen it posted before but no real explanation was offered. Please provide EXPLANATION, not just answers. Q: Make up a list of data with the following landmarks: Mode: 15 Min: 5 ...
Tuesday, March 22, 2011 at 9:12pm

4th grade
What is the answer if you have a nail NOT a FINGERNAIL butt A NAIL? What is the nearest cm and what is the neartest mm
Tuesday, March 22, 2011 at 6:46pm

5th grade Math
How do I solve this problem: At Carver Elementary, there are 355 students altogether. The School has 25 more female students than males. How many males and females does Carver have?
Tuesday, March 22, 2011 at 5:49pm

Spanish 8th grade-Please check
I had to make up a conversation between two people ordering in a restaurant-Is this correct? Emily ¿Qué tú deseas comer? Beth: Yo quisiera el puerco con papas y zanahorias. Emily: ¿Y qué tú quieres beber? Beth: Yo quisiera agua para ...
Tuesday, March 22, 2011 at 5:08pm

8th gr. Transition Math
A rotation id described by it's ____ and ____?
Tuesday, March 22, 2011 at 4:30pm

8th grade math
There are three walls in Jordan’s living room. The three walls, shown here, are 12 feet, 9 feet and 10 feet wide, respectively. Each wall has a height of 8 feet with a 6-inch baseboard along the bottom. The largest of the three walls contains a window that measures 5 feet...
Tuesday, March 22, 2011 at 12:23am

6th grade math
the rectangulr backyard measures 131 feet by 52 feet. the garden measures 13 feet by 9 feet. what is the area of the backyard that will be grass.
Monday, March 21, 2011 at 11:56pm

8th grade math
if you know that AB=0 and A not=to B, what can you say about the equation Ax+By=1? Describe the graph.
Monday, March 21, 2011 at 11:26pm

11 grade English
In Swimming Strokes by Lee Carroll in paragraph 1, how many errors are there in subject-verb agreement, parallelism, and pronoun-antecedent agreement?
Monday, March 21, 2011 at 10:38pm

4th grade Math
Find the partial products and the product for 4 x27=?
Monday, March 21, 2011 at 10:36pm

6th grade math
s=5m find the area of square
Monday, March 21, 2011 at 10:33pm

7th grade Math
Trying to figure out 19.4(x) = 306.52 (gotta find out what X is
Monday, March 21, 2011 at 7:20pm

math
in each of two different fourth-grade classes, 1/3 of the members are girls. does each class have the same numbers of girls
Monday, March 21, 2011 at 7:12pm

math
in each of two different fourth-grade classes, 1/3 of the members are girls. does each class have the same numbers of girls.
Monday, March 21, 2011 at 5:48pm

Spanish 7th grade-please check
How doyou ask if a friend if they are hungry? Tienes hambre? If they are thirsty Tienes sed? Both should have upside down question marks before question
Monday, March 21, 2011 at 2:00pm

math
In each of two different fourth-grade classes, 1/3 of the members are girls, Does each class have the same number of girls.
Monday, March 21, 2011 at 10:58am

Fractions-easy 5th grade
Multiply and divide. 1) -2 4/11(-2) 2) 5 1/7 / 4 1/8
Saturday, March 19, 2011 at 9:57pm

4th grade math
Find a rule that gives the third number from the first two numbers. Fill in the blanks.....10, 4, 5, ? 15, 7,7, ? 19,9,?
Thursday, March 17, 2011 at 11:10pm

algebra
a roof rises 1.3 feet vertically and 13.1 feet horizontally. wgat is the grade of the roof?
Thursday, March 17, 2011 at 5:33pm

arithmetic
use the geometric mean to find the 7th term in a geometric sequence if the 6th term is 50 and the 8th term is 18
Thursday, March 17, 2011 at 12:35pm

8th grade math
Albert has a home screen printing business. He has designed a bracelet and T‑shirt for St. Patrick’s Day which both use a special ink, available for a limited time from his supplier. Albert has already begun taking and fulfilling orders for merchandise. Albert ...
Thursday, March 17, 2011 at 2:19am

8th grade Math
Another four-leaf clover also consists of 4 coplanar circles. The large circular leaves are externally tangent to each other, as well as to each of the smaller circular leaves, which are also congruent to one another. The radius of the large and small circular leaves is 1 1/2 ...
Thursday, March 17, 2011 at 2:18am

8th grade Math
This four-leaf clover consists of four coplanar circles. Each circle is externally tangent to two others, as shown. The two smaller circles are congruent, and the two larger circles are congruent. A square is constructed such that each of its four vertices is also the center ...
Thursday, March 17, 2011 at 2:18am

Second Grade Fractions
4/6 of 18 is ?
Thursday, March 17, 2011 at 12:21am

Writing
I need help on adding voice to my writing. I need help on not being repetitive and making my sentences vague. Would you grade me out of 12 points? A valuable item is something that is given to you by a special someone, something that you will have forever to the end. Many ...
Wednesday, March 16, 2011 at 6:45pm

5th grade math
please show how to get the answer... w>2 d+6<15 s-1>4
Wednesday, March 16, 2011 at 6:16pm

5th grade math
name three solutions of inequality. then graph the inequality on a number line. k<8
Wednesday, March 16, 2011 at 5:38pm

Writing
Can you grade me out of 12 points? Did I have any voice? Proofread my writing. A Valuable Item A valuable item is something that’s given to you by a special someone that you will have forever to the end. Many people have valuable items that they love, that don’t cost...
Tuesday, March 15, 2011 at 9:38pm

English-writeacher
Hey, I just wanted to let you know that I got the grade back for that english paper you helped me write a few weeks back...the movie analysis on A Walk to Remember. I got a B! : ) But I have a chance to revise it according to the teachers comments and turn it in for a better ...
Tuesday, March 15, 2011 at 8:29pm

math
The first three terms of a geometric sequence are 2, 10, 50, and the 8th term has a value of 156,250. What is the value of the 7th term?
Tuesday, March 15, 2011 at 5:11pm

Statistics
I'm stumped on this question. A teacher informs her history class that a test is very difficult, but the grades would be curved. Scores for the test are normally distributed with a mean of 25 and a standard deviation of 5. If the grades are curved according to the ...
Tuesday, March 15, 2011 at 4:23pm

Reading-phonics
I just want to get someone's opinion on a question that was on my son's reading test. He's in first grade. Which word has the same beginning sounds as spring. A. spin B. stripe C. spray The answer is C could A not also be an answer. I know the spr in both words but...
Tuesday, March 15, 2011 at 2:50pm

English
My 1st grade son needs to write a paragraph but is having a very hard time grasping the concept. How can I help him with this? He doesn't under stand that the paragraph has to blend/flow and be about the same topic all the way through. What shoudl I do?
Tuesday, March 15, 2011 at 10:10am

3rd grade math
Sheila wrote a division story. She asked how may equal groups 24 flowers could be put into. What information must she give about the groups?
Monday, March 14, 2011 at 9:11pm

7th grade honors math
Which equation represents an inverse variation? A.3x=2y B.2-2x+y=0 C.y squared= x D.xy=5 If you could tell me the anser then explain how you got it that would be awesome!
Monday, March 14, 2011 at 8:13pm

4th grade math
can u exsplain long division to me?
Monday, March 14, 2011 at 8:08pm

Health
in class, we have to do a presentation on something health related . do you think i should talk about where babies come from ? i'm in 6th grade . thanks
Monday, March 14, 2011 at 7:11pm

Third Grade Math
About how much does a button weigh? 1 gram 100 grams 1 kilogram 10 kilograms Thanks!
Monday, March 14, 2011 at 4:57pm

physics 11 grade
A hiker shouts toward a vertical cliff 789.5m away. The echo is heard 2.1s later. The wavelength of the sound is 12.3 m. What is the speed of the shout? What is the frequency? What is the period of the wave?
Sunday, March 13, 2011 at 10:00pm

Math
1st grade math worksheet says Write some names for 12, what does this mean?
Sunday, March 13, 2011 at 2:31pm

Spanish 7th grade
I have a question about how to answer this If something is dulce, one would probably want to drink lemonade or a sour drink with it. I know dulce is sweet in Spanish but I don't get the correlation-or is it if you eat something sweet, you want to offset it with something ...
Sunday, March 13, 2011 at 1:49pm

9th grade science
A strong acid, HBr, has been dissolved into a beaker of water. If the solution is known to be 0.000 001 M, what is the pH solution?
Friday, March 11, 2011 at 9:14am

geometry CA
Graph quadrilateral ABCD. Then determine the most precise name for each quadrilateral. 1. A (0, 5), B (–5, 0), C (0, –5), D (5, 0) (1 point) square kite rectangle 2. A (–4, 4), B (3, 4), C (5, 0), D (–2, 0) (1 point) square trapezoid parallelogram 3. A (6, ...
Friday, March 11, 2011 at 1:46am

grade 10 math
Chris has $3.85 in dimes and quarters. There are 25 coins in all. How many of each type of coin does he have? If d represents the number of dimes and q represents the number of quarters, what two equations describe the problem?
Thursday, March 10, 2011 at 9:30pm

pre algebra
my grade is 83.17 in pre algebra in college, but the final exam is worth 300 points. If I got a B or B- or a C on the final, what would my grade be overall?
Thursday, March 10, 2011 at 9:20pm

appling middle
If the data were displayed in a circle graph, what percent of the graph would represent the seventh grade? Enrollment is Sixth grade 64, Seventh grade 64, and Eighth grade is 70
Thursday, March 10, 2011 at 8:32pm

math 5TH GRADE
The area of Walters rectangle is 3/4 the area of Janets.What is the area of Walters rectangle? The area of Janets rectangle is 24in.
Thursday, March 10, 2011 at 6:31pm

4th grade math
At the end of five days, Joseph had saved $30. If each day he saved $2 more than the day before, how much money did Joseph save each day?
Thursday, March 10, 2011 at 5:02pm

7th grade math pre algebra
I'm confused about this math question my teacher gave us today. Bowser's dog food is 40% meat. How much dog food would Bowser eat in order to get 11 kgs of meat?
Thursday, March 10, 2011 at 4:44pm

math 5TH GRADE
The perimeter of Olivias rectangle is 50% as long as Janets.What is the perimeterof Olivias rectangle?
Thursday, March 10, 2011 at 4:21pm

maths
The probabilities of a student getting grade A, B, C and D are 0.2, 0.3, 0.15 and 0.35 respectively. Then the probability that the student gets 1) At least C grade is __________ 2) At most C grade is ___________
Thursday, March 10, 2011 at 1:44am

5th grade math
How to change 6/8 into a decimal, and into a percent can someone help me please
Wednesday, March 9, 2011 at 9:36pm

3rd Grade Math
How many degrees does the hour hand move in 4 hours?
Wednesday, March 9, 2011 at 3:29pm

8th grade honors english
How do I properly site sources on my research paper?
Tuesday, March 8, 2011 at 9:14pm

5th grade math
is 13/20 greater than 3/4
Tuesday, March 8, 2011 at 8:20pm

geometry
Suppose line AB is parallel to line MN.Name all angles congruent to angle 8. In the figure at the right, x is parallel to y.List all angles that are congruent to angle 1. If the measure of angle 5 is 45 degrees, what are the measures of the other angles. This is on page 472 in...
Tuesday, March 8, 2011 at 7:56pm

Math
My 7th grade daughter has the following math problem and gets zero help from her "language arts" teacher who gave out this problem: WANT X BE ________ CAREER Each letter in this question stands for a 1-digit #. No 2 letters may stand for the same #. Find the value ...
Tuesday, March 8, 2011 at 7:27pm

5th grade math
3m=63
Tuesday, March 8, 2011 at 5:26pm

2nd grade/math
How do you find the perimeter of a letter, example I, U, and J? The area for the I is 9 square cm. Do you still count all the sides or what? Any help would be appreciated!
Tuesday, March 8, 2011 at 3:47pm

Spanish-9th grade
I have a question-I'm not sure of this translation: ¿Qué comes parea a uno? Does this mean What do you stop to eat at one or Where? I'm stuck on this one. Thanks you
Tuesday, March 8, 2011 at 11:22am

Spanish-8th Grade-Please check
I have a question about the owrd cubiertos in Spanish. Does ths word include la servillete el cuchillo el vaso la cuchara el tendor OR is it just like the plate and spoon, fork, knife and NOT the vaso or servillete(napkin)? The word and transaltion is confusing me Thank you
Tuesday, March 8, 2011 at 10:40am

Geometry-8th grade
In circle O, chords AB and CD are congruent. Ab measures 2x + y, while CD measures 16.5 Two other chords are congruent. GH equals x +2y and KL equals 13.5 I set them up like this 2x + y = 16.5 x+2y = 13.5 then I substituted-rewrote it x = 13.5-2y Then substituted 2(13.5) + y...
Monday, March 7, 2011 at 9:43pm

Writing
Can you proofread my writing? What grade would you give me? Decisions, Decisions, Decisions Decisions everyone has to make them. Some decisions are hard and important and some are not. The decision I had to make was did I still want to be the statistician for the varsity Girls...
Monday, March 7, 2011 at 8:52pm

4th grade math
Aaron's family is driving 80 miles to the mountains. They have already traveled 30 miles. They are traveling at a speed of 50 miles per hour. How many hours will it take them to complete the trip?
Monday, March 7, 2011 at 8:35pm

math
It takes about735 turns of an average of average 5 th grade byicycle tire to go 1 mile .to the nearest thousand how many times would your tire turn around if you biked besides the runners in a 26-mile marathon?
Monday, March 7, 2011 at 6:54pm

6th grade math
room is 18ft long, 14ft wide, 8ft high. find the cost of carpeting the floor with carpet costing $5./ft2
Monday, March 7, 2011 at 6:44pm

6th grade math
the volume of a rectangle is 576 cubic meters. The lenth is 12 meters and the width is 6 meters. What is the height of the prism?
Monday, March 7, 2011 at 6:31pm

8th grade math
the first side of a triangle measures 3 cm longer then the second side the third side is 4cm shorter then twice the second side the perimeter is 31cm. how long is each side?
Monday, March 7, 2011 at 4:15pm

7th grade math
A group of 32 students went to the amusement park.All of them either rode the Ferris wheel or Roller coaster.Seventeen rode the Ferris wheel,23 rode the roller coaster,and 8 did both.How many rode only the Ferris wheel
Monday, March 7, 2011 at 3:23pm

Calculus 12th grade (double check my work please)
1.) which of the following represents dy/dx when y=e^-2x Sec(3x)? A.3e^-2x sec(3x) tan (3x)-2e^-2x Sec(3x)<<<< my choice B.)3e^-2x sec(3x)tan (3x)-2xe^-2x sec(3x) C.)3e^-2x sec(3x)tan (x)-2e^-2x Sec(3x) D.)3e^-2x sec(3x)tan (x)-2xe^-2x sec(3x) 2.)calculate dy/dx if...
Monday, March 7, 2011 at 6:39am

Math
An instructor gives regular 20-point quizzes and 100-point exams in a mathematics course. Average scores for six students, given as ordered pairs (x,y) where x is the average quiz score and y is the average test score, are (18, 87), (10, 55), (19, 96), (16, 79), (13, 76), and...
Monday, March 7, 2011 at 1:47am

3rd grade writing Math
Mina says that if you know the products up to 10x10, you also know the division facts up to a dividend of 100. Is she right? Explain.
Monday, March 7, 2011 at 12:43am

Math
There are 256 students in this outstanding 7th grade class. How many scoops of ice cream would have to be used in each cone in order to make a different cone for each person?
Sunday, March 6, 2011 at 4:45pm

Calculus 12th grade (double check my work please)
2- given the curve is described by the equation r=3cos ¥è, find the angle that the tangent line makes with the radius vector when ¥è=120¨¬. A. 30¨¬ B. 45¨¬ C. 60¨¬ D. 90¨¬ not sure A or D 2.) which of the following ...
Sunday, March 6, 2011 at 1:08am

Calculus 12th grade (double check my work please)
1.)Find dy/dx when y= Ln (sinh 2x) my answer >> 2coth 2x. 2.)Find dy/dx when sinh 3y=cos 2x A.-2 sin 2x B.-2 sin 2x / sinh 3y C.-2/3tan (2x/3y) D.-2sin2x / 3 cosh 3yz...>> my answer. 2).Find the derivative of y=cos(x^2) with respect to x. A.-sin (2x) B.-2x sin (x^2...
Sunday, March 6, 2011 at 12:38am

Calculus 12th grade.
1. A body is moving along a straight line with a velocity which varies according to the equation v=9t^2+2t, where v is in feet per second and t is in seconds. Find the expression for the distance as a function of time. A. 3t^3+t^2+C B. 3t^3+2t^2+C C. 18t+C D. 20t+C My answer ...
Saturday, March 5, 2011 at 10:04pm

Calculus 12th grade.
Find the area lying above the x axis and below the parabolic curve y= 4x -x^2 a.8 b. 8 1/3 c. 10 2/3 d. 16 B or C not sure??
Saturday, March 5, 2011 at 9:44pm

computers
I am going to become a tutor for kids grade K-3.I am tutoring Math, Writing, and Reading. Do you know any good websites that contain free printable worksheets?
Saturday, March 5, 2011 at 8:30pm

Grade 10 Math
Write an equation that forms a system of equations with x + y = 4, so that the system has: a) No solution b) Infinitely many solutions c) One solution I know how to figure out if two linear systems have a solution, but I don't understand how you could figure out if just ...
Saturday, March 5, 2011 at 1:55pm

science
can you give me a website on electric field?
Friday, March 4, 2011 at 2:02pm

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