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February 1, 2015

February 1, 2015

Post a New Question | Current Questions

**Statistic- Average**

A mean average of 60 on 6 exams is needed to pass a course. on his first 5 exams, Adam received grades of 46,73,73,63 and 70. If the lowest grade of the exams already taken is to be dropped, what grade must he receive on his last exam to get a C in the Course?
*Monday, January 7, 2013 at 6:23pm*

**Geometry**

What is the equation of a line through (-2,5) and whose segment intercepted between the axes in the 2nd quadrant is 7sqrt2? Please help me solve this
*Monday, January 7, 2013 at 5:05pm*

**math**

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 at 2:02pm*

**math**

if 40 percent of my grade is at a 97 percent average and 40 percent of my grade is at a 92 percent average and my final test is worth 20 percent of the grade then what do i have to score on my final test to have a grade of 91.5 percent or better?
*Tuesday, December 18, 2012 at 10:21pm*

**Grading**

How do you find out what your grade is on a paper? For example if there is 70 questions and you miss 10 how do you find out what your grade is? Do you subtract 70 and 10 and when you get your answer you divide it by 100?
*Tuesday, December 18, 2012 at 7:28pm*

**Math ave grade**

a student scores 76,82,83 on the first three test, she has a 92 homework averge. if the final exam is 50% of grade and homework is 10% and the test average (nit including the final) is 40% then what grade should she get on the final exam to get a 87.5 in the class?
*Sunday, December 16, 2012 at 11:59pm*

**math**

-25 plus 4 to the 2nd power times 3 minus 5 to the 3rd power
*Wednesday, December 12, 2012 at 6:48pm*

**5th grade math (word problems)**

I didn't see an answer from yesterday, so resending. Also, is there a website to explain how to solve word problems - like key phrases to look for (ex: 'in all' - add; 'what's left' - subtraction)? Here's question from yesterday: sorry,but I don'...
*Wednesday, December 12, 2012 at 7:01am*

**5th grade math (word problems)**

sorry,but I don't understand word problems - like what formula/expression to use. Here's the 1st problem: Rob practiced 3/5 of his music in 25minutes. About how long does it take to practice all of his music? I know that Rob has 2/5 left of music to practice. So, do I ...
*Tuesday, December 11, 2012 at 4:22pm*

**math**

student got 25 questions correct did not pass,2nd attempt got 36 correct what was percent increase show how solved
*Wednesday, December 5, 2012 at 9:51pm*

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

Write the product of (1.7 x 10 to the 9th power) x (1.4 x 10 to the 2nd power) in scientific notation My Answer - 2.38 x 10 to the 11th power am i correct and please reply this post
*Sunday, December 2, 2012 at 4:51pm*

**Computer Science (Programming Logic And Design)**

Create a program that outputs a letter grade for a student based on the following table: From To Grade 90 100 A 80 89 B 70 79 C 0 69 F I dont understand how to do this. Would you mind helping me get the answer to this Program?
*Sunday, December 2, 2012 at 2:18pm*

**Computer Science (Programming Logic And Design)**

Create a program that outputs a letter grade for a student based on the following table: From To Grade 90 100 A 80 89 B 70 79 C 0 69 F I dont understand how to do this. Would you mind helping me get the answer to this Program?
*Sunday, December 2, 2012 at 2:18pm*

**Programming (CSI 150 Programming Logic and Design)**

Create a program that outputs a letter grade for a student based on the following table: From To Grade 90 100 A 80 89 B 70 79 C 0 69 F I dont understand how to do this. Would you mind helping me get the answer to this Program?
*Sunday, December 2, 2012 at 2:14pm*

**Programming (CSI Programming Logic and Design)**

Create a program that outputs a letter grade for a student based on the following table: From To Grade 90 100 A 80 89 B 70 79 C 0 69 F I dont understand how to do this. Would you mind helping me get the answer to this Program?
*Sunday, December 2, 2012 at 2:10pm*

**math**

If sinx=3/5,cosy=-12/13,where x and y both lie in 2nd quad.Find the value os sin(x+y).
*Tuesday, November 13, 2012 at 2:06pm*

**math**

Hannah's grade on her last math test was 4 points more than Mark's grade. Write an expression for Hannah's grade, using m as a variable. Evaluate the expression if m=92.
*Sunday, November 11, 2012 at 9:48pm*

**Math Statistics**

Kesha's mean grade for the first two terms was 74. What grade must she get in the third term to get an exact passing average of 75?
*Tuesday, November 6, 2012 at 4:15am*

**Math Statistics**

Kesha's mean grade for the first two terms was 74. What grade must she get in the third term to get an exact passing average of 75?
*Tuesday, November 6, 2012 at 4:14am*

**Maths**

Find three no. Such that,the 2nd is twice the 1st,the 3rd is three times the first and their sum is 180. Ans is 30,60,90
*Friday, November 2, 2012 at 10:02pm*

**math**

the manager of a starbucks store plans to mix A grade coffee that cost 9.50 per pound with grade B coffee that cost 7.00 per pound to create a 20 pound blend that will sell for 8.50 a pound. how many pounds of each grade coffee are required?
*Tuesday, October 30, 2012 at 8:32am*

**5th grade math word problems**

Frank saved 50% by purchasing his airline ticket early. His wife paid full price. If their total was $294 how much was Franks's ticket only? Can someone please explain this to me in 5th grade terms.
*Wednesday, October 24, 2012 at 2:40pm*

**SS8R - (2nd question) help!**

business rockefeller control???????? i only thing I know is that he formed a Standard Oil Company.... does that count is there any other business he control (looked up on wiki, not there...)
*Tuesday, October 23, 2012 at 9:25pm*

**Social Studies 8R (2nd question) **

Why do some call him a Capatain of Industry? Now for this question I know why, is because since he a industrialist, he controlled many railroads. He was on of the richest man in america. right????
*Tuesday, October 23, 2012 at 8:58pm*

**Social Studies 8 - help!!!!! (2nd question)**

What organizations or buildings named after cornelius vanderbilt? So far I only got Vanderbily University is there anything else????? I google it and that's all it gave me please help me!!!!!
*Monday, October 22, 2012 at 8:42pm*

**Health 8 (2nd question)**

Describe the effects of alcohol Answer - There were 283 deaths recorded as alcohol-related and could cause blackouts, memory loss and anxiety. Am I correct and is my answer is good????
*Monday, October 22, 2012 at 7:39pm*

**business statics**

a random sample of the grade of 78 students is taken. what is the probability that the average grade will be between 80.3% and 82.3%?
*Sunday, October 21, 2012 at 8:21pm*

**algebra**

how do I evaluate 2x to the 4th power + 2 x to the 3rd power + x to the 2nd power when x + 7
*Thursday, October 18, 2012 at 8:19pm*

**Math**

Jessie’s average grade in Algebra for the first two terms is 73.5. What grade must he get in the third term to have an average of 75?
*Wednesday, October 17, 2012 at 8:11pm*

**science**

Is venus the 1st, 2nd, 3rd, 4th, 5th, 6th, 7th, 8th or 9th smallest planet?
*Tuesday, October 9, 2012 at 4:53pm*

**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*

**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,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*

**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*

**Database**

Following report shows a grade report that is mailed to students at the end of each semester. Prepare an E-R diagram reflecting the data contained in the Grade Report. Assume that each course is taught by one instructor. MILLENIUM COLLEGE GRADE REPORT FALL SEMESTER 199X NAME: ...
*Sunday, September 16, 2012 at 12:37am*

**Database**

Following report shows a grade report that is mailed to students at the end of each semester. Prepare an E-R diagram reflecting the data contained in the Grade Report. Assume that each course is taught by one instructor. MILLENIUM COLLEGE GRADE REPORT FALL SEMESTER 199X NAME: ...
*Saturday, September 15, 2012 at 10:58pm*

**7th grade science**

I did my calculations wrong and now Im going to get a bad, bad, bad grade on my lab report I need to know what how to find the highth and width and radius of several things are help me plz!!!!
*Saturday, September 15, 2012 at 5:33pm*

**algebra 1**

place parenthesis so answer = 14. 2x2+3 to 2nd power-4+3x5.
*Friday, September 14, 2012 at 2:25pm*

**Soc studies**

What are the differences between the 1st and 2nd continental congress and their outcome?
*Tuesday, September 11, 2012 at 9:14pm*

**7 th grade math**

hey i need to new what it the answer for this question 35 fewer than 168 and this is 7 th grade math so plz tell me thanx
*Monday, September 10, 2012 at 10:31pm*

**physics**

If a radioactive isotope has a half-life of 1 year, how much of the original sample will be left at the end of the 2nd year?
*Thursday, August 23, 2012 at 9:50am*

**geography**

which country is the biggest (mongolia,china,southkorea,north korea,japan? p.s. i am 8 yaers old and going to 4th grade so use 4th grade words so thank you but no thanks to the geeks. sincerely, cesia xoxo
*Tuesday, August 21, 2012 at 11:06am*

**math**

Your company can make x-hundred grade A tires and y-hundred grade B tires a day, where 0≤x≤4 and y= (40-10x)/(5-x). The profit on each grade A tire is twice the profit on each grade B tire. Assuming all tires sell, what are the most profitable numbers of tire to make?
*Tuesday, August 7, 2012 at 5:16am*

**math **

Ms. Sue are you able to break 3/4ft.= how many inches for a 2nd. grader.
*Thursday, August 2, 2012 at 9:23pm*

**programming**

write a flowchart program which shows persentes of 4 student 1st 2nd 3rd 4th meximum nd minimum?
*Monday, July 30, 2012 at 10:42pm*

**calculus **

Use the 2nd derivative test to find the extremer of f on the interval [0,2PI] f(x)=2cosx+sin 2x
*Friday, July 6, 2012 at 9:26pm*

**National Junior Honor Society**

Since I'm in the NJHS. Is there any community service hours ideas because the advisor will give us community service hours sheet. Just to let you know I'm going to the 8th grade. My goal is to complete 300 community service hours. Is there any sites that have list of ...
*Wednesday, July 4, 2012 at 4:02pm*

**3rd grade math**

I CANNOT BELIEVE THIS IS A THIRD GRADE WORKSHEET! THIS IS SOO INAPPROPRIATE. THEY HAVE NEVER DONE LONG DIVISION OR REMAINDERS & THERE IS ONE WEEK OF SCHOOL LEFT & THIS IS WHAT THE TEACHER HANDS OUT.....86 DIVIDED BY 9, 17 DIVIDED BY 3, 73 DIVIDED BY 8 ! HOW MANY FLUID OUNCES ...
*Tuesday, May 29, 2012 at 11:42pm*

**math**

mike has an average of 89 on the five tests he has taken so far this semester. what grade must mike earn on the next test to raise his average grade exactly to 90?
*Tuesday, May 29, 2012 at 5:38pm*

**math**

Identify -7x^3+6x^2+6x+9 1st, 2nd, 3rd, and 4th terms. Thanks
*Saturday, May 5, 2012 at 2:06pm*

**calculus**

1. A hill with a 35 degree grade (incline with horizontal) is cut down for a roadbed to a 10 degree grade. If the distance from the base to the top of the original hill is 800 ft., How many vertical ft will be removed from the hill rounded to the nearest ft
*Monday, April 30, 2012 at 7:34pm*

**math**

(8x to the 3rd power) (4x to the 2nd power) simplifi
*Thursday, April 26, 2012 at 6:13pm*

**science fair**

I need a science fir project!! I looked on a thousand of websites online but they give no interesting idea. I am in 6th grade and i need something at a 6 grade level that is easy a science fair project that is do in 1 week. i am in 6 grade and i don't need experiments ...
*Thursday, April 26, 2012 at 5:18pm*

**physics**

When an electron jumps from the 4th orbit to the 2nd orbit which series line does it get?
*Thursday, April 19, 2012 at 10:46am*

**chemistry**

How is it possible for a chemical rxn to be highly spontaneous and have a negative entropy value? Isn't this inconsistent with the 2nd law of thermodynamics?
*Friday, April 13, 2012 at 10:56am*

**6th grade credits**

how many credits does a 6th grader in oklahoma need to pass into 7th grade?
*Thursday, April 12, 2012 at 12:00pm*

**Calculus I**

Find the derivative ** (sq root) y = (square root) x + (2nd sq root) x + (3rd sq root) x ** All the x's is under three sq roots y' = 1/2(sq rt) x + 1/(sq rt) x + 3/2(sq rt) x Is this right?
*Tuesday, April 10, 2012 at 11:16am*

**math**

The 2nd, 3rd and 4th term of an ap are x-2,5,x+2 respectively ,calculate the value of x
*Friday, March 30, 2012 at 4:06pm*

**Geometry**

two perpendicular lines with the equations y=1/3x+9 and y=mx-3 contain the consecutive sides of a rectangle. What is the value of mx in the 2nd linear question.
*Sunday, March 25, 2012 at 9:47pm*

**Math(Can someone please answer!!)**

n [1.70E-2] = ln(0.144) - (k s-1)(3609 s) Solve for k. I have a TI30 calculator. Am I suppose to press just the ln button or do I have to press 2nd and then ln??
*Sunday, March 11, 2012 at 5:20pm*

**Math**

ln [1.70E-2] = ln(0.144) - (k s-1)(3609 s) Solve for k. I have a TI30 calculator. Am I suppose to press just the ln button or do I have to press 2nd and then ln??
*Sunday, March 11, 2012 at 1:53pm*

**7th grade math**

My friend is in the 7th grade and broke his wrist so he cannot type. Wat is the square root of pi.He said he knows pi=3.14 but he doesn't know how to work it out. He said thanks.
*Monday, March 5, 2012 at 3:45pm*

**algebra**

How do i solve 8y to the 2nd plus 30y plus 13
*Tuesday, February 21, 2012 at 9:35pm*

**College Chemistry**

previous answer to problem before this one(relevant in 2nd half of this question): 294.472689amu what would be the mass of 1.36 moles of these atoms? Enter your answer here: ____ g
*Monday, February 13, 2012 at 6:42pm*

**physics**

rank higest to lowest air drag? 1)a 5lb lead block teraveling at 95% terminal speed. 2a 5lb styrofoam block at terminal speed? 3)a10lb styrofoam block traveling faster than terminal speed? 4)a 10lb styrofoam block at terminal speed? put in orderfrom least air drag,2nd least ...
*Thursday, January 26, 2012 at 12:53pm*

**Math **

What equation do I use to find out what I need to get on my exam to pass my class. I have a 65.9% and the exam is 20% of my grade....if you need any additional information let me know..... also a passing grade is 59.5
*Tuesday, January 17, 2012 at 11:54am*

**math**

What is P(-4) given that P(x) = 2x to the fourth power - 3x to the third power + 5x to the 2nd power - 1?
*Monday, January 16, 2012 at 9:14am*

**math**

What is P(-4) given that P(x) = 2x to the fourth power - 3x to the third power + 5x to the 2nd power - 1?
*Monday, January 16, 2012 at 9:14am*

**math**

What is P(-4) given that P(x) = 2x to the fourth power - 3x to the third power + 5x to the 2nd power - 1?
*Monday, January 16, 2012 at 9:13am*

**math**

What is P(-4) given that P(x) = 2x to the fourth power - 3x to the third power + 5x to the 2nd power - 1
*Monday, January 16, 2012 at 9:13am*

**9th Grade Classes **

I was reading my school district program of studies and I found this section in for high school coures. - English 9H - Integrated Algebra A - Earth Science - Global History and Geography I or H - French Beg. 1 - Orchestra (a days)/ Health (b days) - Studio Art I - African ...
*Sunday, December 18, 2011 at 5:36pm*

**math**

If I have a 66% in algebra Android we took a exam that's worth 20% of our grade Android I got a 54% on the multiple choice what would my average grade be?
*Wednesday, December 14, 2011 at 8:40pm*

**Gov**

Who is sometimes viewed as 2nd powerful federal official after the president?
*Tuesday, December 13, 2011 at 9:19pm*

**Math**

Trying to understand an inverse trig function. Evaluate Cos^-1 (sqr3/2) So I know it's 30 degrees, but wouldn't it also be 150 degrees because the Arc-cos is defined in the 2nd quadrant?
*Sunday, December 11, 2011 at 6:12pm*

**8th Grade **

Me and my friend are making our own 8th grade binder, you know like writing down planns for our 8th grade year. Here are the sections: - To-Do-List - Doodles (if you are bored) - Projects that are do (school plans) - Graduation Plans (speech, to-do-list, etc.) - Dates for ...
*Monday, December 5, 2011 at 8:15pm*

**Medical billing **

2nd question, pt present for PO check of head wound Pariental area healed well. RTO prn ( pf hx/px/sf/mdm) what is the code...
*Sunday, December 4, 2011 at 3:14am*

**maths**

Solve the following 2nd order differential equation explicitly by expanding up to order x5, y''(x) = (1 + x^2)*y(x) pls show working y =f(x)
*Wednesday, November 30, 2011 at 11:06am*

**maths**

Solve the following 2nd order differential equation explicitly by expanding up to order x5, y''(x) = (1 + x^2)*y(x) pls show working y =f(x)
*Wednesday, November 30, 2011 at 2:19am*

**Economics**

Im trying to figure out my grade what would i need to get a c average in the class;39%,of my grade is is based on 3 assignments(i got so far 62%,80%,haven't done the last assignment yet), 3 exams each worth 20%( i got a 2%,40%, haven't taken the last one) and 1% for ...
*Wednesday, November 16, 2011 at 12:24pm*

**mercy land**

the 2nd, 3rd, and 4th term of an arithemetic progression are x-2, 5 and x+2 respectively, calculate the value of x and hence find the 20th term..
*Tuesday, November 8, 2011 at 5:16pm*

**statistics**

A researcher is investigating whether, on average, 3rd grade males have significantly different creativity scores than 3rd grade females. She samples students from a large school district where she works. What is the independent variable?
*Monday, October 31, 2011 at 4:44pm*

**Logic**

Gene will teach 7th grade of Gene will teach 8th grade. If Gene teaches 7th grade, he will be assigned to the Sunset Road School. Gene will carpool with Chris if he is assigned to the Sunset Road School. If Gene teaches *th grade he will have his daughter Briana in his class. ...
*Sunday, October 30, 2011 at 10:35pm*

**SCIENCE**

What is the name of the 2nd biggest planet in our solar system?
*Thursday, October 27, 2011 at 9:22pm*

**geometry**

ONE SIDE IS 57 AND 2ND SIDE 15.FIND PARALLEL DISTANCE
*Tuesday, October 18, 2011 at 2:53am*

**math**

how to solve (4.8 x 10 to the 2nd power) divided by 2.4 x 10 to the 10 th power)
*Wednesday, October 12, 2011 at 9:31am*

**Algebra 2 (Linear Programming)**

The Carbon coal company has 2 mines, a surface mine ad a deep mine. it costs $200 per day to operate the surface mine and $250 to operate the deep mine. Each mine produces a medium grade and a medium-hard grade coal, but in different proportions. This surface mine produces 12 ...
*Tuesday, October 4, 2011 at 1:52am*

**Algebra II**

prove the following using trigonometric identities: cos 0 (sin 0 + cos 2nd power / sin 0) = cot 2. Keep getting stuck. thanks
*Sunday, October 2, 2011 at 3:13pm*

**calculus**

Piecewise f(x) = { (x^2, x<=2) (mx + b, x>2) I am not sure what the graph would look like for the 2nd function. Any tips on drawing functions like this would be of great help.
*Sunday, October 2, 2011 at 4:37am*

**Algebra**

A roof rises 2.3 feet vertically, and 7.4 feet horizontally. What is the grade of the roof? I do not understand how to even find what the grade would be..can anyone help?
*Friday, September 30, 2011 at 3:56pm*

**sociology HS 2nd year**

What are some of the rules that the caste system imposes?Give me the ans in point ways.
*Tuesday, September 27, 2011 at 10:36am*

**7 th grade math**

if all my grades are above an 80 how will a 38 affectn my grade.
*Thursday, September 22, 2011 at 8:52pm*

**programming**

2-5 Grade Determination is says " Write a program that will input three test scores. the program should determine and display their average. the program should then display the appropriate letter grade based on there average. the letter grade should be determined using a ...
*Wednesday, September 21, 2011 at 12:44pm*

**Math **

Hey umm what do you learn in the 5th grade math??? This is for my brother cause he is going to the 5th grade.
*Sunday, September 4, 2011 at 7:23pm*

**Algebra **

In a class of 110 students, 22 received the grade of A. what fraction of the students did not receive the grade A?
*Wednesday, August 31, 2011 at 12:16am*

**algebra**

Solve the quadratic equation 2x to the 2nd power -3x-2=0using the quadratic formula. Read the information in the assignment list to learn more about how to type math symbols in MS Word, such as the square root.
*Saturday, August 27, 2011 at 5:49pm*

**math**

a student is selected at is the probability the the randomly selected stundent is neither a 10th grade nor an 11th grade express your answer in fraction in simplest form
*Thursday, August 25, 2011 at 5:47pm*

**Algebra**

a 260 m wire is cut into 3 pieces. The second is 4 times longer than the 1st. The third is 2 times longer than the 2nd how long is each piece=
*Thursday, August 11, 2011 at 6:31pm*

**English**

What is the role of homework in learning 2nd language?
*Thursday, August 11, 2011 at 4:10pm*

**Math**

18 people enter a race, if there are no ties, how many ways can 1st, 2nd and 3rd place result?
*Saturday, July 9, 2011 at 5:00pm*

**10th Grade Chemistry**

I struggle in the sciences and was wondering what I could do over the summer self studying wise to prepare for 10th grade chem?
*Thursday, July 7, 2011 at 7:00pm*

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