# Homework Help: 2nd Grade

**4th grade math**

How do you solve 41/2-1/4=?

*Sunday, January 20, 2013 by beka*

**Science**

What are 6th grade examples of negative feedback mechanism?

*Thursday, January 17, 2013 by jonah*

**3rd grade math**

Draw a model to show 84/12=7

*Wednesday, January 16, 2013 by johnathan*

**9TH GRADE MATH**

IF C=2M+D THEN M=

*Tuesday, January 15, 2013 by KIM*

**math**

what is tell me rule it frist grade help please......

*Tuesday, January 15, 2013 by janiah*

**math 7 th grade asap**

6(b-4)=

*Monday, January 14, 2013 by noahc*

**English Grade 10**

Discuss society's tendency to fear the unknown.

*Thursday, January 10, 2013 by George Bishop*

**9th grade algebra**

2x^2+5x+2

*Thursday, January 10, 2013 by Nicole*

**7th grade math**

solve each equation. Check your solution. 1) 7 2 -X = - 3 3 2) 2 1 7c- - = - 3 2

*Wednesday, January 9, 2013 by Dingbat*

**math**

whats 4(2/3) im in 8th grade and i don't understand

*Tuesday, January 8, 2013 by diana martinez*

**statistics-?mean average with lowest number out?**

A mean average of 60 on 7 exams is needed to pass a course. on his first 6 exams, Adam received grades of 46,74,70,59,66 and 72. if his lowest grade of the exams already taken is to be dropped,what grade must he receive on his last exam to pass?

*Monday, January 7, 2013 by tony*

**statistics-?mean average with lowest number out?**

A mean average of 60 on 7 exams is needed to pass a course. on his first 6 exams, Adam received grades of 46,74,70,59,66 and 72. if his lowest grade of the exams already taken is to be dropped,what grade must he receive on his last exam to pass?

*Monday, January 7, 2013 by tony*

**math**

(8 x____) x 5 = 8 x ( 20 x 5).. third grade question please help me solve

*Saturday, January 5, 2013 by devon*

**maths --.**

If sin theeta=3/5 , cos alpha= -12/13 and theeta,alpha both lie in 2nd quadrant,find the value of tan (theeta+alpha).

*Monday, December 24, 2012 by Anonymous*

**World history- does this sound okay?**

if you had to give queen Elizabeth the first a grade on the enlightenment principles what grade would you give and why? I think I would give her a B bc for the most part she was a very big influence on the enlightenment era and she enabled quite a bit for us today. she changed...

*Thursday, December 20, 2012 by BaileyBubble*

**ECC**

When do parents start to socialize their children in earnest? 1) The 1st year when babies can interact socially. 2) The 2nd year when toddlers are first able to comply with parental directions. 3) The preschool years when children start formal schooling. 4) Early adolescence ...

*Wednesday, December 19, 2012 by Denice*

**3rd grade math**

25 cents __?__ 3/10 of a dollar

*Monday, December 17, 2012 by Kk*

**7 th grade math**

How many 4/5 are in 1 ?

*Wednesday, December 12, 2012 by noah*

**Physical Education**

What is the average weight for 8th grade girls?

*Sunday, December 9, 2012 by Maria*

**Math**

A curve has equation y= 2 + x - x^2. Find coordinates of 3 unknown points on the line. 1st point is at negative x, y value. 2nd point is at x=0 and y is positive. 3rd value is at y=o and x is positive.

*Sunday, December 9, 2012 by TJ*

**Math challenge**

There are 3 circles divided into thirds with a number in each third. The 1st cirlcle has 18, 23 & 49. 2nd cirlce has 25, 62, 38. The 3rd cirlce has ?, 17 & 39. We need to figure out what number is missing from the 3rd circle, and how you figured it out.

*Thursday, December 6, 2012 by Gabby*

**Math**

Elsa had a rubber disc that was red on one side and blue on the other. She tossed this disc 3 times. Draw a diagram showing all the possible outcomes she could get in 3 tosses of the same rubber disc 1st toss can be red or blue 2nd toss can be red or blue and 3rd toss can be ...

*Thursday, December 6, 2012 by Jerald*

**Math**

Please help! How do I find the mean weight of 2 groups of 100 kids... 1st grp mean weight is 55.7lbs and 2nd grp mean weight is 42.6lbs.

*Wednesday, December 5, 2012 by Damon*

**5th grade math**

what is a word problem for 4.23x10

*Wednesday, December 5, 2012 by kaitlyn*

**math 6th grade**

what does y=x

*Tuesday, December 4, 2012 by sally*

**English**

For english class, I have to read a biography/autobiography of an author and then read two of the author's books that have been influenced by their real life. I chose F. Scott Fitzgerald as my author. I want to read The Great Gatsby as one of the books, but I'm not sure which ...

*Tuesday, December 4, 2012 by Ceci*

**Math 5th grade**

9K=414

*Tuesday, December 4, 2012 by Ishu*

**math**

Suppose that you are taking a course that has three exams which count for three-fifths of your grade and a final which counts for two-fifths of your grade. On your first three tests your scores on were 75, 80, and 74. To get an B in the course, you must have an average of at ...

*Sunday, December 2, 2012 by amanda*

**7th grade social studies**

What are the pros and cons to democracy? Thank you.

*Thursday, November 29, 2012 by Donnie*

**5th grade**

how do you divide 1/4 by 1/2? please tell answer and explain

*Thursday, November 29, 2012 by Anonymous*

**Algebra Grade 7 (Rotation)**

If you rotate a clock clockwise 90° from 3:00, what will it be?

*Thursday, November 29, 2012 by rawr... im a dinosaur.... rawr*

**5th grade math**

i need help

*Tuesday, November 27, 2012 by jacob*

**MATH 5TH GRADE**

HOW MANY TIMES MORE IS 2000 THAN 20?

*Tuesday, November 27, 2012 by frank*

**calculus**

A multistoried building has a floor area of 2,000 square feet on the ground floor, 1,995 square feet on the 1st floor, 1,990 square feet on the 2nd floor, and so on. If the areas of the higher floors follow this sequence, what is the expression to calculate the area of the nth...

*Tuesday, November 27, 2012 by Chelsy*

**Spelling 4th grade**

Down is to dive as up is to ____________?

*Monday, November 26, 2012 by Caleb*

**computing extrapolation**

Derive the central difference approximation for f''(x) accurate to O(h^4) by applying Richardson extrapolation to the central difference approximation of O(h^2). where f'' = 2nd derivative of x

*Saturday, November 17, 2012 by ryan*

**English 8R - help!!!!!**

what is nature (please define it in an 8th grade level)

*Thursday, November 15, 2012 by Laruen*

**5th grade**

How can I do distributtive property to break apart each multiplication 5*13=5*(6+_)=(5*_)+(_*7)

*Thursday, November 15, 2012 by Jamila*

**computing/maths**

Derive the central difference approximation for f′′(x) accurate to O(h4) by applying Richardson extrapolation to the central difference approximation of O(h2). (Note that f''(x)= 2nd derivative of x)

*Sunday, November 11, 2012 by royston*

**6th grade math**

What does this sign mean "| |"

*Monday, November 5, 2012 by luv history*

**6th grade math**

What does this sign mean "| |"

*Monday, November 5, 2012 by luv history*

**Geo- 7th Grade**

What are the Atlantic Provinces?

*Friday, November 2, 2012 by rawr... im a dinosaur.... rawr*

**Math 8R: Homework Check - Part 3**

Part 3 : Evaluate when x = -2, y = 5 21. 4x + 2y, Answer: 2 22. 3(x) *to the 3rd power*, Answer: -221 23. (x + y) *to the 2nd power*, Answer: 9 24. -4x + 2y, Answer: 18 Please check to see if my answers are correct. Thank You!!! :)

*Monday, October 29, 2012 by Laruen*

**Algebra Grade 7**

Point S is the midpoint of RT. compplete the statement: ST = 11 in., RT = __

*Saturday, October 27, 2012 by rawr... im a dinosaur.... rawr*

**Algebra Grade 7**

It is possible to estimate the length of a line. True?

*Friday, October 26, 2012 by rawr... im a dinosaur.... rawr*

**Math Statistics**

The table below shows Rico’s grades during the third term in four subjects. Subject Units Grade Math 1.5 98 Science 2 97 English 1.5 95 A.P. 1 99 What was Rico’s average grade in the four subjects?

*Friday, October 19, 2012 by Milen*

**Statistic**

Number of Absences Final Grade 0 93 1 93 2 77 3 68 4 65 5 54 - Find the correlation coefficient for the data. I got this part of my answer. I believe the answer to be -0.9767 I am just going crazy with the second part. - Find the equation for the regression line for the data, ...

*Thursday, October 18, 2012 by Ashley S*

**math 7th grade**

what is 234(2-1+1092-924+18) ?

*Thursday, October 18, 2012 by allie*

**English ms. sue**

ms. sue for the book catcher in the rye i am being ackley describing holden, and i choose the 2nd incident when holden goes to ackleys room that one night after getting socked from stradlater. i not know what be a good title for this creative writing thing?

*Sunday, October 14, 2012 by Mohammad*

**7th Grade Math**

A proportion is shown below. 7/10 = 17.5/x What is the value of x?

*Sunday, October 14, 2012 by Lauren*

**4 grade math**

what the rule for 58,-2

*Sunday, October 14, 2012 by Monta*

**c++**

Your Mathematic school teacher want to use a program that can read the name and the mark of a student. Your teacher want the program to automatically find the grade of the mark and display the result(name, mark and grade). Help your teacher to develop a program that can solve ...

*Thursday, October 11, 2012 by sarah*

**Linear Algebra**

1. Considering 2 planes with equations: x + 2y - 3z = 1 x + 2y - 3z = 18 (a) Given (a,b,c) a point on the first plane, find the point where the line perpendicular to both planes passes by (a,b,c) and through the 2nd plane.

*Wednesday, October 10, 2012 by Ben*

**Linear Algebra**

1. Considering 2 planes with equations: x + 2y - 3z = 1 x + 2y - 3z = 18 (a) Given (a,b,c) a point on the first plane, find the point where the line perpendicular to both planes passes by (a,b,c) and through the 2nd plane.

*Wednesday, October 10, 2012 by Ben*

**7th Grade x y input output tables**

i need help with x and y input output tables for 7th grade i don't understand what 5x means or what to do! Math hw problems: 1. y=4x+3 x=1,2,5,10,20 2.d=3.5t t=1,2,5,10,20 Please help ASAP!!!!!

*Tuesday, October 9, 2012 by Sadie*

**Math 4th grade**

How do you find the properties of addition?

*Tuesday, October 9, 2012 by Penny*

**ELEMENTARY**

How to prepare PSAT test from 3rd grade

*Monday, October 8, 2012 by josh*

**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 by Tesa*

**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 by Laura*

**7th grade math help quick**

11/12 + (-2/3) = ?

*Wednesday, October 3, 2012 by Delilah*

**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 by Delilah*

**math 8th grade**

10(square root400 - 15) 10(20-15) 10(5)= 50 would this be correct?

*Tuesday, October 2, 2012 by jill*

**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 by lhyza*

**math 7th grade**

so is it okay if you explain to me why we multiply first and then divide???

*Monday, October 1, 2012 by catalina*

**MATH 4TH GRADE**

THINK OF ALL THE WAYS TO BREAK 10 X 6?

*Monday, October 1, 2012 by DENISE*

**math**

5th grade equstions

*Tuesday, September 25, 2012 by erickka*

**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 by dan*

**6th grade math**

what does the |#| mean? Thanks

*Sunday, September 23, 2012 by luv history*

**6th grade math**

Simplify: |15|

*Sunday, September 23, 2012 by need help*

**6th grade math**

What is absolute value?

*Sunday, September 23, 2012 by luv history*

**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 by ray*

**3rd grade math**

9,000+600+50+4 in standard form

*Wednesday, September 19, 2012 by yasmine*

**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 by Nancy*

**4th grade math**

I have 5 ones and 19 hundredths. What number am I?

*Monday, September 17, 2012 by Angie*

**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 by dad pulling out his hair*

**6th grade science**

What is porosity and permeability? Thanks

*Sunday, September 16, 2012 by Allison*

**6th grade science**

What is a A topographic map used for? thanks

*Sunday, September 16, 2012 by Allison*

**7th grade math**

What is the difference? |-9| - |13| =? A)-22 B)-4 C)4 D)22

*Sunday, September 16, 2012 by Lauren*

**6th grade math**

9 + x = 17 I know that x=8 but how did you get it Thanks

*Friday, September 14, 2012 by some girl*

**6th grade math**

What is base measurement? thanks

*Friday, September 14, 2012 by some girl*

**7th Grade Math**

(-13) + (-1)

*Friday, September 14, 2012 by Lauren*

**writing**

who knows any 5th grade transition words?

*Wednesday, September 12, 2012 by jessica*

**6th grade math**

f + (–15) = –32

*Tuesday, September 11, 2012 by Allison*

**math**

I'm in sixth grade What is the value of |–46| ?

*Monday, September 10, 2012 by Allison*

**math**

y – (–19) = 25 i'm in sixth grade

*Monday, September 10, 2012 by Elizabeth*

**Math 8R - HW Qs. Check**

Topic - Logic In the clues below, each variable represent a different digit ranging from 0-9. Determine what digit each variable represent g+g+g = d (3+3+3 = 9) j+e = j (2+0 = 2) g (to the 3rd power) = d (3, to the 2nd power = 9) b+9 = d (6+3 = 9) f-b = c (7-6 = 1) i+h = a ...

*Sunday, September 9, 2012 by Laruen*

**Math 8R - HW Qs. Check**

Topic - Logic In the clues below, each variable represent a different digit ranging from 0-9. Determine what digit each variable represent g+g+g = d (3+3+3 = 9) j+e = j (2+0 = 2) g (to the 3rd power) = d (3, to the 2nd power = 9) b+9 = d (6+3 = 9) f-b = c (7-6 = 1) i+h = a ...

*Sunday, September 9, 2012 by Laruen*

**5th grade religion**

For whom do members of the JVC work?

*Wednesday, September 5, 2012 by Madison*

**5th grade religion**

jvc what year was the organizaion founded?

*Wednesday, September 5, 2012 by Madison*

**Math**

A year on Mars is 686 Earth Days. (1) Which is longer, a year on Mars or a year on Earth? (2)By how many weeks is it longer? Submit two answers. Please explain how you got the answers. My 1st answer was Mars the 2nd answer I 82 1/2 weeks. Please help

*Wednesday, September 5, 2012 by Nakia*

**5th grade math**

Which is more 0.33 or 0.333?

*Tuesday, September 4, 2012 by Colby*

**7th grade math**

-6(2r-4)

*Tuesday, September 4, 2012 by nic*

**6th grade math**

what is 13/16 minus 1/4?

*Tuesday, September 4, 2012 by Al*

**Johan**

Given angle 1 = (x + 7)degree, angle 2 = *(2x -3)degree, angle ABC = (x 2nd power) degree, angle D = (5x - 4)degree. Show that angle ABC congruent to angle D I can't seem to solve this?

*Tuesday, September 4, 2012 by Sia*

**Microeconomics**

When you golf, you receive 18 units of pleasure from the first hole and on each hole thereafter your pleasure drops by one unit, so that the 2nd hole gives you 17 units of pleasure etc. If you play 5 holes and the rain hits so that you quit playing, what is the total pleasure...

*Monday, September 3, 2012 by Robson*

**9th grade chemistry**

what is the

*Monday, September 3, 2012 by simia*

**Business and math question**

Isabella is hoping to get an A on her college algebra course. With just the final exam left to take, she currently has an average of 92 on her exercises. The quizzes count for 40%, exercises count for30% of the class grade. What is the minimal grade that Isabella must have on ...

*Thursday, August 30, 2012 by John*

**Business**

Isabella is hoping to get an A on her college Algebra course. With just the finaL exam left to take, she currently has an average of 85 on her quizzes and average of 92 on her exercises. The quizzes count for 40%, exercises count for 30% of the class grade. What is the minimal...

*Thursday, August 30, 2012 by John*

**english 3 grade**

aphabet on move words

*Wednesday, August 29, 2012 by edwin*

**Algr.1**

For Nina's illness her doctor gives her a prescription for 28 pills. The doctor says that she should take 4 pills the first day and then 2 pills each day until her prescription runs ... How many pills should she take at the end of the 2nd day? ... So how many days will it take...

*Wednesday, August 29, 2012 by Caleb*