# Homework Help: 12th Grade

**12th grade**

2. Assume the body temperatures of healthy adults are normally distributed with a mean of 98.20 °F and a standard deviation of 0.62 °F (based on data from the University of Maryland researchers). a. If you have a body temperature of 99.00 °F, what is your percentile score? ...

*Tuesday, June 15, 2010 by Anonymous*

**7th grade**

I was wondering if there were any sample placement tests that I could give to my son who is currently in 7th grade homeschool.

*Wednesday, June 2, 2010 by Brenda*

**Math**

I'm confused.Can someone tell me if I have done this correct.I'm trying to get the average using a weighted scale: TOTAL GRADES: WEIGHT 90% ---------- 5% 100% ---------15% 95% --------- 15% 90% -----------5% 94.5% --------60% I multiplied the total grade by the percent, then ...

*Sunday, May 2, 2010 by Sue*

**Statistics**

I'm confused.Can someone tell me if I have done this correct.I'm trying to get the average using a weighted scale: TOTAL GRADES: WEIGHT 90% 5% 100% 15% 95% 15% 90% 5% 94.5% 60% I multiplied the total grade by the percent, then added the percent. But I get 109.20 as a final ...

*Sunday, May 2, 2010 by Sue*

**7TH GRADE**

HOW DO I STUDY BETTER? WHEN THERE ARE TO MANY DISTRACTIONS IN MY HOUSE. BECAUSE MY TEST GRADES ARE BAD AND THEY ARE PULLING DOWN MY AVERAGE GRADE

*Thursday, April 29, 2010 by Anonymous*

**7th grade**

HOW DO I STUDY BETTER? BECAUSE MY TEST GRADES ARE BAD, SO THEY ARE PULLING MY AVERAGE GRADE DOWN.

*Thursday, April 29, 2010 by Anonymous*

**science**

what is the pH of the following 1. [H+] = 10 negative 12th power M 2. [H+] = 10 negative 2nd power M 3. [H+] = 10 negative 7th power M

*Monday, April 26, 2010 by jessica*

**Math**

For a normally distributed distribution of variable x, where the mean is 50, and standard deviation is 2.5, calculate: a) the percentile rank of x=45 b) the z-score of x=52.6 c) the percentile rank of x=58 d) the 29.12th percentile e) the 89.74th percentile f) the z-score of x...

*Sunday, April 25, 2010 by Ally*

**Science Grade 8**

I know that this seems like a REALLY EASY question, but for some reason I cannot think of anything! 2. What technologies have been developed that use light? This is from a grade 8 textbook, so nothing to technical!

*Saturday, April 24, 2010 by Maddison*

**10th grade**

i need an interesting topic for a tenth grade informative essay

*Monday, April 19, 2010 by Dallas*

**math (find my grade)**

1% of my grade 82% 4% of my grade 76% 2% of my grade 100% 100% 100% 100% 100% 100% 100% 100% 82% could you please find my average. thank you!!!!

*Sunday, April 18, 2010 by rosie*

**grade 10 career studies**

I have to hand in an assignment called WHO AM I? for my grade 10 career studies course, i just need to no what to hand in exactly

*Friday, April 16, 2010 by jack*

**math**

If you have a grade average at 50% and you score 89% percent on a test what does your grade equal out to?

*Friday, March 26, 2010 by tarra*

**Math word problem**

Which would you rather be paid for 12 days - $100 per day for the 12 days or one dollar for the first day, $2.00 the second, $4.00 the third, $8.00 the fourth, etc., up to and including the 12th day?

*Sunday, March 21, 2010 by Paula*

**classroom instruction**

• Write a 200- to 300-word response describing how you might teach this concept to students in a lower elementary grade and to students in a middle school grade. i picked problem solving i have this so far. i guess for each grade level (elem and middle school) i would ...

*Friday, March 19, 2010 by scooby*

**6th Grade Grammar**

The sixth grade class *had wrote* several papers about the great sphinx. How should the words in the asterisks be written? A. had written b. has wrote c. correct as is

*Wednesday, March 17, 2010 by David*

**2nd grade**

2nd grade math measurement

*Wednesday, March 10, 2010 by alexis*

**computer science**

ineed help with c++. i am using code blocks and i have a problem with the compiler. when I run this code ¡é # include <iostream> using namespace std; int main() { cout<<"Hello World!"<<endl return(0); } this message keep pops up. ¡é "It seems that this ...

*Sunday, March 7, 2010 by lj*

**classroom instruction 9not sure if i am right)**

• Search the Internet to locate and review your state’s educational standards for a grade level and subject that interests you, such as second-grade language arts or fifth-grade science. i am doing physical education in wisconsin. this is what i have i am not sure if i am ...

*Friday, February 19, 2010 by scooby*

**6th grade**

Doyou have 6 grade text book?

*Monday, February 15, 2010 by carla*

**12th grade**

I have to write a evaluation on president Obamas speech on 1/27/10. THis speech is for Public speaking class. THis is what i have done. I will critically evaluate every aspect of the speech that the President made especially his Delivery, Audience, Movements, Eye Contact, ...

*Tuesday, February 2, 2010 by Emma*

**English 1**

what is the subject of the sent? Holly has been my best friend since grade school. A.friend B.school C.grade D.Holly

*Monday, February 1, 2010 by Anonymous*

**6th Grade Science : Newton's First Law of Motion**

Explain the idea of streamlining.\, as it applies to the skydiver. If you have the following textbook: Scott Foresman Science, 6th Grade good for you! Look on pages B102 - B105.

*Friday, January 29, 2010 by David*

**7th grade**

i need help on Chemistry and i am in 7th grade i don't know how to do some problems and i would like to know how to translate statements into equation form?

*Friday, January 22, 2010 by Hope*

**7th grade math**

I am in 6th grade and i am haveing trouble with statistics and how to memorize them!!! How can i do this???? Is there a special way???

*Monday, January 18, 2010 by nicole*

**9th grade**

I'm doing this word search for my 9th grade honors physical science class, and i don't understand one thing. it says 'blue, striped and round are examples of this' when we're talking about matter and phases of matter and density/mass/weight/volume. stuff like that. ANY HELP ...

*Wednesday, January 6, 2010 by Kelly*

**science**

i am in 7th grade accelerated science, so i am learing 8th grade material. I am having some difficulties with covelant and ionic bonds. My lab is due tomorrow and i have a quiz on Wed. If anyone can help me understand this better i would be greatful. Thank-you.

*Monday, January 4, 2010 by Michele*

**12th Physics**

A 55 kg ice skater is at rest on a flat skating rink. A 198 N horizontal forceis needed to set the skater in motion.However, after the skater is inmotion, a horizontal force of 175 N keeps the skater moving at a constantvelocity. Find the coefficients of static and kinetic ...

*Tuesday, December 8, 2009 by Melissa*

**Maths**

An Investment Fund manager is required to maximise the return on a portfolio of bonds given the following information: Bond types Projected rate of return Benchmark government 9.1 UK gilts 10.3 Global investment grade (US $) 6.7 Global investment grade (euro) 8.7 Global ...

*Tuesday, December 8, 2009 by Sarah*

**8th grade**

im in advanced math so i do 8th grade math and i don't understand how too gragh the fractions in equations like y=2/3x+1

*Sunday, November 29, 2009 by jazmine*

**Science**

I am in 6th grade and doing very well so i am not stupid or anything but i don't know if my science fair project is for my grade level. It's What Makes Ice Melt The Fastest. What Do You Think? Thnak You

*Monday, November 16, 2009 by Ella*

**3rd grade**

3rd grade Explain how to add with carrying give example

*Wednesday, November 4, 2009 by Jesse James*

**programming**

Consider the following selection statement where X is an integer test score between 0 and 100. input X if (0<=X and X<49) Output "you fail" Else if (50<=X and X <70) Output "your grade is" X Output " you did OK" Else if (70<=X and X<85) Output "your grade is"...

*Friday, October 23, 2009 by steve*

**Linear Programming**

OKay My question is: Two factories manufacture 3 different grades per paper. the company that owns the factories has contracts to supply at least 16 tons of low grade, 5 tons of medium grade, and at least 20 tons of high grade paper. It cost $1000 per day to operate the first ...

*Friday, October 16, 2009 by Deanna*

**Math**

In a class 85% of the student received the highest grade in English Literature, 80% in Math, 75% in History, and 30% in Chemistry. About what percentage of the students could you say for sure that they received the highest grade in all 4 subjects?

*Thursday, October 15, 2009 by Kim*

**12th grade Economics**

The chapter states that the elderly population in the U.S. is growing more rapidly than the total population. In particular, the number of the total workers is rising slowly, while the number of retirees is rising quickly. Concerned about the future of Social Security, some ...

*Monday, October 12, 2009 by Emily*

**algebra**

from a base elevation of 6800 ft, a mountain peak rises to a summit elevation of 14478ft over a horizontal distance of 15845 ft. find the grade of peak. the grade of the peak is ___ %

*Wednesday, October 7, 2009 by Kathy*

**6th grade Reading**

Worksheet for An Ant's Life and The Best School Year Ever Vocabulary im in 6th grade

*Wednesday, October 7, 2009 by Please Help Me I'm 11*

**3rd grade**

what does property mean in 3 rd grade math example 4+8= 12 find the property

*Tuesday, October 6, 2009 by shemar*

**math**

I think I must be asking my question wrong, but what is my number grade if I missed 36 out of 85 questions. For example if I missed 1 out of 10 I know my grade would be a 90.

*Wednesday, September 23, 2009 by Mattie*

**12th grade**

In recent years,business representatives have expressed concern about the skills of students entering the workforce.Responding to these concerns,state legislature have enacted a law that establishes high educational standards for all students.Now the state legislature is ...

*Wednesday, September 23, 2009 by Banasa*

**Algebra 1 Please bobpursley again**

Thanks to everyone for trying to help me. This is not really a question but an answer to what grade level this promblem is for my son is in ninth grade. Thank You all again

*Saturday, September 12, 2009 by Mary*

**5th grade**

Will someone tell me a webpage my daughter can get help on solving equations, word problems w/ algebraic chains...or for 5th grade math. Thank you

*Thursday, September 10, 2009 by margaret*

**English**

1. He is upset because she got a very good grade. 2. He is upset because she got very good grade. (Do we have to use 'a' before 'very good grade' or not?)

*Monday, September 7, 2009 by John*

**Math**

How would the information about grade and frequency change if there were twice as many of each grade? Grade Frequency A 2 B 8 C 11 D 2 F 1 I think that the grades would double if there was twice as many. Thanks.

*Wednesday, July 29, 2009 by B.B.*

**12th grade**

Dear Mr. VanYerself: I am interested. The position has requirements that match my abilities. My education meets your requirements. My experience relates to the job description. I believe I will be successful in this position, and I am eager to hear you to schedule an interview...

*Sunday, July 26, 2009 by tamara jones*

**9th Grade Courses**

For 9th grade science, which would be easier to take? Environmental Science or Life Science? Thanks -MC

*Wednesday, July 15, 2009 by mysterychicken*

**10th grade**

what classes should i take in 10th grade?

*Wednesday, May 27, 2009 by katlyn*

**Business Communication**

A student who has poor grades should: a) omit the grade poing average from the resume b) round off the grade point average rather than giving the precise figure c) explain the reason(s) for getting poor grades on the resume d) lie about the grade average I know (c) and (d) are...

*Monday, April 20, 2009 by Anonymous*

**8th grade**

essay on should students only have to take reading andmath to go to 9th grade agree or disagree?

*Monday, April 13, 2009 by Robin*

**6th grade vocab**

What does the word "predominant" mean? Oh and please don't give me a website with some big def. I am in 6th grade so I won't understand if the def. is big and long. It also helps if you use it in a sentence . . . just saying. :-D Thanks so much!

*Monday, April 13, 2009 by Noelle*

**3rd grade**

in the book " how to be cool in the third grade. Do you think Robbie was cool and why

*Monday, March 30, 2009 by carmen*

**For my son (maybe considered homework...)**

Do you have a good link to where my son can print out fun activities for kindergarten, and 1st grade. He's in kindergarten but I want to see what he can do with 1st grade since he's really smart. Thanks.

*Saturday, March 28, 2009 by Cassie S.*

**math (grade 11 operations with radicals)**

Simplify sqrt12 + sqrt18 - sqrt27 + sqrt 50 thnx a lot any help is greatly appriceted.... these are grade 11 radical expressions and the answer for this is : - -sqrt3 + 8sqrt2

*Friday, March 27, 2009 by gagan*

**6th grade**

Do you have online readings and questions for my son, who is in 6th grade? I see lesson plans, but I don't see the information to give out. Please let me know about this, thank you.

*Thursday, March 19, 2009 by rachel*

**First grade social studies**

my son is in first grade and has to do a project as the curator for the american symbols. I am looking for a reputable website and having difficulty sorting out which ones to use. Can anyone help?

*Tuesday, February 17, 2009 by noemi*

**Social studies needs your help!!**

I am in a very tight situation. I am a grade 4 social studies teacher. In my classroom, I have students of mixed ability. Some students are above grade level, some on grade level and some below grade level. The bulk of students is below grade level. What activities or ...

*Wednesday, February 11, 2009 by Maria*

**Pre-Calculus**

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.

*Thursday, February 5, 2009 by Henry*

**math**

i was trying to calculate wut grade i got if the avg on a midterm was 47.76 and the mean was 10.19 i got 37 wut grade did i get?

*Thursday, February 5, 2009 by rita*

**math**

there is a graph, and the title is Students who dress up for spirit week.60 grade 7 boys did,70 grade 7 girls did,70 grade 8 boys did, and 80 gr 8 girls did. the question is what this graph is showing. I put the graph is showing how many gr 7 boys dressed up for spirit week, ...

*Saturday, January 31, 2009 by beeca*

**math**

Three students from grades 10,11 and 12 were elected to the student council. Grade 10: Tom(T), Sally(s) and Bill(B) Grade 11: Jerry(J),Anne(A)and Connie(C) Grade 12: Dan(D), Martha(M) and Gwen(G) A three member committee is to be formed with one person from each grade. All ...

*Friday, January 30, 2009 by Katie*

**7th grade math**

indicate the measure and the measure unit. 1. there are four windows in the room each 36 inches wide. 2. luisa received a gift of $100 from a relative when she graduated from 8th grade.

*Wednesday, January 7, 2009 by cornelia*

**3rd grade**

my son is in the third grade. how do you figure out the mass

*Tuesday, December 9, 2008 by Toni*

**Persuasive writing....**

I will be teaching my grade 5 students a lesson on persuasive writing. Do you know where I could find some sample persuasive essays to show them, especially ones that are on fifth grade level. Thanks for your help

*Friday, December 5, 2008 by Rena*

**12th Calculus**

the volume of a cube is increasing at the rate of 1200 cm^3/min at the instant it edges are 20cm long. at what rate are the edges changing at the instant?

*Wednesday, December 3, 2008 by may*

**12th Calculus**

water drains fromteh conical tank shown in the figure at the rate of 5 ft^3/min. a. what is the relation between the variables h and r? b. how fast is the water level dropping when h =6ft?

*Wednesday, December 3, 2008 by may*

**AED**

What skills will you teach and how will you teach them in mathematics. need 200 words and all I have so far is: I can teach this concept to students in a lower elementary grade and to students in a middle school grade by

*Friday, November 21, 2008 by troyer0269*

**12th Calculus**

suppose that at any tiem t(sec) the current i(amp) in an alternating current circuit is i=2cost+2sint. What is the peak (largest magnitude) current for this circuit?

*Tuesday, November 18, 2008 by ee*

**12th Calculus**

the sum of two nonnegative numbers is 20. find the number if a. the sum of their squares is as large as possible; as small as possible b. oen number plus the square root of th eother is as large as possible; as samll as possible

*Tuesday, November 18, 2008 by dt*

**12th Calculus**

it cost you c dollars each to manufacture and distribute backpacks. if the backpacks sell at x dollars each, the number sold is given by n=(a/x-c)+b(100-x) where a and b are certain positive constanst. what selling price will bring a maximum profit?

*Tuesday, November 18, 2008 by elley*

**AED**

describing how you can teach this concept to students in a lower elementary grade and to students in a middle school grade.

*Monday, November 17, 2008 by troyer0269*

**5th Grade student teacher: Needs ur help....**

What fun activity could I use to to teach 5th grade students about the Constitution?

*Thursday, November 6, 2008 by Samantha*

**12th Calculus**

f(x)= x, 0<and equal to x<1 = 0, x=1 is zero at x=0 and at x=1. it derivative is equal to 1 at every point between 0 and 1, so f' is never zero between 0 and 1, and the graph of f has no tangent parallel to the chord from (0,0) to (1,0). why this does not contradict the ...

*Thursday, November 6, 2008 by elley*

**7th grade**

can you just give me a math riddle that's understandable to 7 th grade

*Monday, October 27, 2008 by whatever*

**Physics (Online w/ no teacher)**

The mass of a certain neutron star is 3.0 X 10 to the 30th (1.5 solar masses) and its radius is 8,000 m (8 km). What is the acceleration of gravity at the surface of this condensed, burned-out star? My answer was 31,265,625 X 10 to the 12th km/s squared.

*Monday, October 27, 2008 by Katie*

**Algebra**

Well someone please help me with this problem!!!!!!!!!!!! From a base elevation of 8200ft. a mountain peak in colorado rises to a summit elevation of 14701ft.over a horizontal distance of 15838 ft. Find the grade of the peak. The grade of the peak is what percent? (Round to ...

*Saturday, October 25, 2008 by PJ*

**education class**

What would a good teaching strategy be for language arts in a grade 1 classroom and a grade 8 classroom?

*Sunday, September 28, 2008 by jenny*

**grade 8 math**

At the annual Grade 8 ski trip, for every 2 students who skied, 3 snowboarded. Ninety-six students snowboarded. How many students skied? Show your work. Can someone help???

*Sunday, September 28, 2008 by Carly*

**language arts**

I have to put together and present a strategy that is effective in the teaching of language arts at a specific grade level. What would a good idea be for around the grade 2 level? and why is it important?

*Saturday, September 27, 2008 by samantha*

**trig**

in an algebra class of 21 students the mean grade on a test was 87; in another class with 32 students the mean grade was 81. What is the combined mean of the two classed? my teacher said it's 21 * 87 + 32 * 81/53= 83.4 but i'm not sure where the 53 came from.. thanks in advance

*Monday, September 8, 2008 by jerson*

**trig.**

in an algebra class of 21 students the mean grade on a test was 87; in another class with 32 students the mean grade was 81. What is the combined mean of the two classed? my teacher said it's 21 * 87 + 32 * 81/53= 83.4 but i'm not sure where the 53 came from.. thanks in advance

*Monday, September 8, 2008 by jerson*

**12TH HISTORY**

FOR HISTORY WE HAVE TO CONDUCT A SURVERY FROM PEOPLE CONCERNING 9/11. THERE ARE ONLY TWO QUESTIONS THAT ARE ASKED. QUESTION 1:WHY DO YOU THINK SEPT. 11TH HAPPENED? QUESTION 2: HOW DO YOU THINK WE CAN PREVENT ANOTHER SEPTEMBER 11TH FROM HAPPENING? YOUR ANSWERS ARE GREATLY ...

*Saturday, September 6, 2008 by SENiOR '09*

**12th Government/Economics**

Who Is our national representative? And are Jeff Sessions and Richard Shelby our National senators or Alabama's State Senators?

*Thursday, August 21, 2008 by Britney*

**reading 4th grade**

looking for someone to tell me where I can find anything on "Tales of a Fourth Grade Nothing"

*Monday, August 11, 2008 by LaNoria*

**5th grade expectations**

my son is going to the fifth grade. What do I need to do to make sure he is ready?

*Friday, July 18, 2008 by lucretia*

**Problem Solving**

Lindsey has 75% as her final grade, but after she writes her exam she gets 85%. If her exam is worth 7.5%, what is her final grade.

*Saturday, June 14, 2008 by Carrie*

**Part 1**

Consider the following selection statement where X is an integer test score between 0 and 100. input X if (0 <= X and X < 49) output "you fail" else if (50 <= X and X < 70) output "your grade is" X output "you did OK" else if (70 <= X and X < 85) output "your...

*Wednesday, June 11, 2008 by Anonymous*

**Part 1**

input X if (0 <= X and X < 49) output "you fail" else if (50 <= X and X < 70) output "your grade is" X output "you did OK" else if (70 <= X and X < 85) output "your grade is" X output "you did well" else if (85 <= X and X < 100) output "your grade is" X...

*Wednesday, June 11, 2008 by Anonymous*

**math**

An opening for a movie, every 12th person gets a free ticket, every 15th person gets free popcorn. How many people get both prizes?(please show work)

*Tuesday, April 22, 2008 by anonomous*

**6th Grade Math**

I really don't know what to do on this question. If someone could start me off I could probably get the answer. Remember I am in 6th grade. Dani has a sack of 50 pens. Of these, 10 are black, 15 are blue, and the rest are red. If she grabs a handful of 5 pens, how many would ...

*Monday, April 21, 2008 by Missy*

**geometrey**

The grade of a road is 7%. What angle does the road make with the horizontal? I'm confused!! What is the grade of a road? Thanks for the help!

*Monday, March 10, 2008 by anna*

**science: help**

i need to do a science fair project. i am in 7th grade and my teacher said that it can't be something a 6th grade or younger could do. i wanted to do something with kinetic energy. like maybe drop an egg from different heights and measure its k.e. any suggestions?

*Friday, March 7, 2008 by Brooke*

**MATH-PERCENTILES**

I JUST TOOK A TEAS TEST(FOR PRACTICAL NURSING ADMISSIONS). THE REQUIREMENTS MUST BE A GRADE IN AT LEAST THE 40TH PERCENTILE IN EACH SUBJECT. THERE WAS A MATH, READING,ENGLISH, AND SCIENCE SECTION. TOTAL OF QUESTIONS WERE 170.MATH-45? READING-40? ENGLISH-55 ? SCIENCE-30 ? I WAS...

*Saturday, February 9, 2008 by TORI*

**math**

If Jenny built a triangle out of soup cans and there are 4 at the top row she added 2 cans to every next row so there are 8 cans in the second row. How many cans are in the 12th row?

*Monday, October 15, 2007 by Rachael*

**algebra**

Sam must have an average of 70 or more in his summer course to obtain a grade of C. His firs three test grades were 75,63, and 68. Write an inequality representing the score that Sam must get on the last test to get a C grade.

*Wednesday, October 10, 2007 by seano*

**Chemistry**

What is the mass in grams of the following: a) 3.011x10 to the 12th power atoms F b)1.50x10 to the 23 power atoms Mg

*Tuesday, October 2, 2007 by Ivanka*

**math**

An instructor counts homework as 1/3 of the student's grade and the final exam to be 2/3 of the student's final grade. Going into the final exam a student has a homework grade of 48%. What range of scores on the final exam would put the student's final average between 70% and...

*Sunday, September 30, 2007 by Jessica*

**Government**

If no presidential candidate wins a majority of electoral votes, who can choose the president. http://www.usconstitution.net/const.html#A2Sec1 In addition to the above excellent answer please consider the following. The lack of any candidate receiving a majority if the ...

*Saturday, July 14, 2007 by Chad*

**random**

I dunno. Why don't u wait 4 a teacher 2 answer that? I guess any grade that can type and ask Qs. :p any grade.

*Monday, May 7, 2007 by Lily*

**math**

Ted must have an average of 70 or more in his summer course to obtain a grade of C. His first three test grades were 75, 63,and 68. Write an inequality representing the score that Ted must get on the last test to get a C grade. Let X be the grade on the next test. The average ...

*Monday, March 19, 2007 by cheryl*