Friday

October 28, 2016
**maths**

in the binomial expansion of (1+x/k)^n, where k is a constant and n is a positive integer, the coefficients of x and x^2 are equal. (a) show that 2k=n-1 (b) deduce the value of k. Hence find the 1st 3 terms in the expansion in ascending powers of x.

*Thursday, October 3, 2013 by mutinta*

**programming**

Grades are assigned on the standard 90, 80, 70, 60 scale. You are to write an algorithm which will receive a student name and a percentage grade and display the letter grade to be awarded

*Thursday, September 26, 2013 by Anonymous*

**Grammar Advisor**

Are these correct? I mark my answer with an X. 88. The reason to list all of the preliminary (non-procedural) information in a lesson plan is to be sure have considered each aspect. keep good records for your future needs. be able to communicate clearly with administrators, ...

*Wednesday, September 25, 2013 by William*

**question**

is it better to take physics or chemistry if taking both whats better to take 1st in sophomore year better to take ap statistics or precalculas for becoming an architect

*Sunday, September 22, 2013 by jim*

**7th Grade**

I just wanna know anyone who's been in 7th grade what do you learn in science mostly throughout the year??

*Monday, September 16, 2013 by Anonymous*

**dma040**

42inch board is cut into 3peices. Peice 2 is twice as long as the 1st & 3rd peice. Peice 3 is three times as long as peice 1. What are the lengths of all 3 peices? Pc 1 Pc 2 Pc 3

*Monday, September 16, 2013 by Anonymous*

**Math **

Illustrate two real-life example of the fraction 0/6? I need help coming up with the second one. This is my 1st one "The amount of money of six business owners get if the business has a profit of $0."

*Sunday, September 15, 2013 by Lilly*

**math 5th grade**

Hunter school has a kindergarten and grades 1 through 6. there are 2 kindergarten and 2 classes in each grade. If the maximum class size is 25, what is the greatest number of students that could be in the school?

*Thursday, September 12, 2013 by lewis*

**Math - Ratios**

In Mrs. Sotomayor's class, the final grade is based on 6 quizzes and 2 exams. If each exam counts for 3 times as much as each of the quizzes, what fraction of the final grade is determined by each exam?

*Tuesday, September 10, 2013 by Venus*

**Algebra **

The ages of three brothers are three consecutive even integers. If the sum of the 1st, four times the 2nd, and twice the 3rd is 86, what is the age of the oldest brother?

*Saturday, August 24, 2013 by Yasmen*

**statistics**

1. I took a sample of the grade point averages for students in my class. For 25 students, the standard deviation of grade points was 0.65 and the mean was 2.89. The standard error for the sample was:

*Sunday, August 11, 2013 by CHIMI*

**Physics**

When you're riding a city bus sometimes there are no seats left and you have to stand. Why are there vertical and horizontal metal hand bars on the bus? Use the concept of inertia and Newton's 1st law

*Thursday, July 11, 2013 by Jai*

**Physics**

When you're riding a city bus sometimes there are no seats left and you have to stand. Why are there vertical and horizontal metal hand bars on the bus? Use the concept of inertia and Newton's 1st law

*Thursday, July 11, 2013 by Jai*

**Economics**

According to the U.S. Constitution and judicial review, each person's individual rights guaranteed by the 1st Amendment are absolute, meaning that there are no limits to your rights. True Or False

*Wednesday, July 10, 2013 by Mesha *

**chemistry 1st year**

A 5 liter vessel contains 2g of hydrogen and 28g of nitrogen at 27 temperature.find to total mixture ?

*Monday, July 1, 2013 by mirza*

**Accounting**

Zeke Company is a manufacturing company that has worked on several production jobs during the 1st quarter of the year. Below is a list of all the jobs for the quarter: Balance Job 356 $ 450 Job 357 $1,235 Job 358 $ 378 Job 359 $ 689 Job 360 $ 456 Job 356, 357, 358 & 359 were ...

*Saturday, June 22, 2013 by Anonymous*

**math**

Jane uses a jar to save her money. She saves $10 from her weekly allowance in the 1st week, $12 in the 2nd week, $14 in the 3rd week, and so on. How much money will she have saved in 10 weeks?

*Friday, June 21, 2013 by terrell*

**Statistics**

the 1st class in a relative frequency table of 50-59 an the corresponding relative frequency is 0.2. What does the 0.2 value indicate

*Monday, June 10, 2013 by Agnes*

**math**

in a geometric sequence the first term is 2. The 3rd term is the sum of the 1st and 2nd term. Find the ratio, and the 2 terms

*Monday, June 3, 2013 by saraah*

**Statistics**

The accompanying data show the number of hours, x, studied for an exam and the grade received, y (y is measured in tens; that is, y = 8 means that the grade, rounded to the nearest 10 points, is 80). x 2 3 3 4 5 5 5 6 6 6 7 7 7 7 8 y 5 5 6 5 6 7 8 6 9 8 7 9 10 8 9 Maple ...

*Sunday, May 26, 2013 by Sue*

**Math (Algebra)**

An elevator named L in "63 Building" in Seoul is notorious for its low speed. It takes 3 seconds for L just to move one floor. It takes another 20 seconds for it to have its door open and close automatically. What is even more frustrating, is that the elevator ...

*Saturday, May 11, 2013 by Shin*

**Math**

An elevator named L in "63 Building" in Seoul is notorious for its low speed. It takes 3 seconds for L just to move one floor. It takes another 20 seconds for it to have its door open and close automatically. What is even more frustrating, is that the elevator ...

*Tuesday, May 7, 2013 by Bob *

**maths**

To get an A grade on the test, you need a total score of more than 16 points. One of the students knows the correct answer to 6 of the 20 questions. The rest she guesses at random by tossing a coin (one toss per question,true if heads and false if tails). What is the chance ...

*Saturday, April 27, 2013 by anonymous*

**Algebra**

Which of the following graphs of exponential functions corresponds to a geometric sequence with a 1st term of 6 and a ratio of 1/2? I'm honestly so confused on this. :(

*Friday, April 26, 2013 by Tifini*

**?**

If there are 56 questions and you miss 10 what would your grade be? Your grade would be a 81.88 I divided 100/56 and got 1.78 than I multiplied how many questions I would get right by 1.78. So 46x1.78=81.88

*Wednesday, April 24, 2013 by Anonymous*

**?**

Let me see if I understand how to find your grade now. So this time if there are 60 questions and you miss 15 your grade would be a 72?

*Tuesday, April 23, 2013 by Anonymous*

**?**

If there's 60 questions on a homework paper and you miss 10 what would your grade be? I forgot how to find out your grade.

*Tuesday, April 23, 2013 by Anonymous*

**statistics**

To get an A grade on the test, you need a total score of more than 16 points. One of the students knows the correct answer to 6 of the 20 questions. The rest she guesses at random by tossing a coin (one toss per question, as in 4B). What is the chance that she gets an A grade ...

*Sunday, April 21, 2013 by AmmanJordan*

**Statistic**

To get an A grade on the test, you need a total score of more than 16 points. One of the students knows the correct answer to 6 of the 20 questions. The rest she guesses at random by tossing a coin (one toss per question, as in 4B). What is the chance that she gets an A grade ...

*Saturday, April 20, 2013 by AmmanJordan*

**science**

To get an A grade on the test, you need a total score of more than 16 points. One of the students knows the correct answer to 6 of the 20 questions. The rest she guesses at random by tossing a coin (one toss per question, as in 4B). What is the chance that she gets an A grade ...

*Saturday, April 20, 2013 by AmmanJordan*

**Geometry **

The grade of a road or a railway road bed is the ratio rise/run, usually expressed as a percent. For example, a railway with a grade of 5% rises 5 ft for every 100 ft of horizontal distance. 1. The Johnstown, Pennsylvania, inclined railway was built as a "lifesaver" ...

*Monday, April 15, 2013 by Stacey*

**english**

dialect is used to a-stablish setting and character b-describe the atmosphere c-support the main idea d-help readers visualizwe events mi 1st answer is d then a

*Sunday, April 14, 2013 by Anonymous*

**LBCC**

an apartment building has the following apartments: 2 bdrm 3 bdrm 4 bdrm 1st floor

*Sunday, April 7, 2013 by Lynn*

**Algebra**

Find the 1st four hexagonal numbers and the formula The difference of two squares a2 - b 2 can be found in 16sq2 – 13sq2 = 3(16 + 13) = 3 . 29 = 87

*Monday, April 1, 2013 by Ernie*

**5th grade math**

how do i convert milligrams to grams- i am in fifth grade-easiest way please.

*Thursday, March 28, 2013 by cc*

**English**

Why should grade 8 students have to do volunteer hours to graduate grade 8? Please provide me with atleast 6 points and so I can expand on it. Your help is very much appreciated!:)

*Saturday, March 23, 2013 by bob*

**CHRIST MATH**

Divide 20 into 4 parts which are in AP such that ratio between the product of the 1st part and the 4th part to the 2nd and 3rd part is 2:3 find the AP

*Tuesday, March 12, 2013 by pavithra*

**ALL subjects..**

Hi!! Well,I'm in tenth grade And I was wondering if there are any practice test websites for the 10th grade Test.. I believe Pct? Please!! Help..

*Friday, March 8, 2013 by Unknown*

**help**

can someone help me with the pythagorean theorem? VERY HARD IM IN 7TH GRADE AND THIS IS SOME 7TH GRADE MATH HOMEWORK THAT I NEED HELP WITH!!!!!!!!!!!

*Thursday, March 7, 2013 by juju*

**maths**

The mean grade of 10 students was 72.if 2 of the students with grades of 53,75 are cancelled. What should be the mean grade of the remaining?

*Wednesday, March 6, 2013 by minte*

**Physics**

If you walk 2 km from your house to a store then back home, whats your displacement? (Displacement is the difference between 1st position and final position)

*Monday, March 4, 2013 by Heleny*

**Urgent**

draw an angle x in the 1st quadrant with sinx=3/5, and an angle y in the 2nd quadrant with cosy=-12/13, then determine the exact value of tan(x+y).

*Friday, March 1, 2013 by Anonymous*

**Similarity **

What is one similarity between 4th grade and 5th grade?

*Wednesday, February 27, 2013 by Celest*

**writing**

For my writing, it has to be a three paragraph essay.I have to include 2 differences and 1 similarity about 4th grade vs. the 5th grade. How do I start my paragraph?

*Wednesday, February 27, 2013 by Celest*

**Chemistry**

In a given 1st order reaction A ---> products, the initial concentration of A is 0.40 M. What will be the concentration of A after 15 seconds if the half-life of the reaction is 3 seconds?

*Sunday, February 17, 2013 by Marcus *

**Trigonometry**

Mountain Descent 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.

*Monday, February 4, 2013 by AwesomeGuy*

**Community technical college **

Given that 1st term of an A.P is 7 and it's 10th term is twice the second term,calculate the (a) 19th term (b)sum of 28 terms (c) difference between 9th and 6th terms

*Sunday, February 3, 2013 by Benjamin*

** math**

franklin school has 3 boys for every 4 girls in the fifth grade.there is 140 students in the fifth grade. A. how many are boys and how many are girls??? pleassseee helpppp meeeeee!!!!

*Saturday, February 2, 2013 by wobble it*

**4th grade math**

In helping my 4th grade grandson last night with his math, he had problems like this 93 * 18. I asked what the asterisk meant and he said the teacher said to "figure it out"

*Wednesday, January 30, 2013 by Patricia*

**MATH**

In Marissa's Calculus course, attendance counts for 5% of the grade, quizzes count for 15% of the grade, exams count for 60% of the grade, and the final exam counts for 20% of the grade. Marissa had 100% average for attendance, 93% for quizzes, 82% for exams, and 81% on ...

*Sunday, January 27, 2013 by Kristina*

**math**

a boat travels at 16 knots 1st leg: 6hr @ S63W 2nd leg: 4hr @ N10E find time and bearing back to port

*Wednesday, January 23, 2013 by Ashley*

**math**

I need to solve this problem. A teacher can grade 25 papers in 4 hours. How many papers can he grade in 6 hours?

*Tuesday, January 22, 2013 by Christina*

**money conversion problem**

I have a currency conversion problem that I have found difficult to solve. Suppose that a currency speculator believes that as time goes on the exchange rate is going to fall. On November 1st the speculator converts $1,000 US into Canadian dollars (just call the converted ...

*Tuesday, January 22, 2013 by linda*

**Analytic Geometry**

Give the equation of the circle tangent to both axes of radius 5 and in the 1st quadrant. Can you help me solve this?

*Monday, January 21, 2013 by Lance*

**Chemistry**

This problem is 1st order for half life. How long would it take for the concentration of cyclopropane to decrease to 50% of its initial value? to 25% of its initial value? Rate constant is 9.2/s I set up like this... t1/2= 0.693/9.2/s= 0.075s at 50% I can't figure out how ...

*Monday, January 21, 2013 by Chris*

**math**

The 6th term of an arithmetic sequence is x while the 11th is y find the 1st 2 terms

*Sunday, January 20, 2013 by unknown*

**Calculus**

In these complex exponential problems, solve for x: 1)e^(i*pi) + 2e^(i*pi/4)=? 2)3+3=3i*sqrt(3)=xe^(i*pi/3) MY attempt: I'm not really sure of what they are asking. For the 1st one I used the e^ix=cos(x)+i*sin(x) and got -1+sqrt(2) +sqrt(2)i 2) I solved for x and fot (3+3i...

*Tuesday, January 15, 2013 by Lisa*

**math**

please check: 10 to the 1st power = 10*1??? 10 to the 0 power = 10*0??? I'm not sure.

*Wednesday, January 9, 2013 by Celest*

**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 by tony*

**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 by tony*

**math**

how would i find the sum of the 7 term. if i have 1st term = 11 and 7th term = 704.its a geometric series. i don't know how to find the difference?

*Wednesday, January 2, 2013 by Riana*

**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 by pat*

**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 by Lance*

**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 by James*

**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 by Alex*

**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 by Alex*

**Math**

The chart shows the results of 40 students in 1st period classrooms who met the standard on the 6th grade math assessment Peacock 15 Salas 12 Tiegs 13 If these numbers were the same for the remaining periods and if 200 students tested how many students from Ms. Salas's ...

*Monday, December 10, 2012 by Jerald*

**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*

**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 don't understand how to do this. Would you mind helping me get the answer to this Program?

*Sunday, December 2, 2012 by Derek Smith*

**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 don't understand how to do this. Would you mind helping me get the answer to this Program?

*Sunday, December 2, 2012 by Derek Smith*

**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 don't understand how to do this. Would you mind helping me get the answer to this Program?

*Sunday, December 2, 2012 by Derek Smith*

**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 don't understand how to do this. Would you mind helping me get the answer to this Program?

*Sunday, December 2, 2012 by Derek Smith*

**Science**

Give the value of the 1st ionization energy of beryllium (Be). Express your answer in Joules (J/atom).

*Sunday, November 18, 2012 by Audrey*

**science**

Give the value of the 1st ionization energy of beryllium (Be). Express your answer in Joules (J/atom).

*Saturday, November 17, 2012 by hi*

**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 by Milen*

**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 by Milen*

**physics**

In a paragraph, use the following words: Inertia, Acceleration, Kinetic Energy, and Newton's 1st Law to describe the physics at work during a car crash

*Sunday, November 4, 2012 by Nigear *

**physics**

In a paragraph, use the following words: Inertia, Acceleration, Kinetic Energy, and Newton's 1st Law to describe the physics at work during a car crash

*Sunday, November 4, 2012 by Nigear *

**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 by Simran kaur*

**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 by faye*

**MATH**

for 30 days on the 1st daY I GET A PENNY THAN ON IT DUOBLES EVERY DAY UNTIL DAY 30 HOW MUCH PENNIES DO I HAVE ON DAY30

*Monday, October 29, 2012 by JR*

**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 by Anonymous*

**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 by kenneth*

**maths**

the 1st term of an ap is twice the common difference find in terms of the 5th term of the ap

*Saturday, October 20, 2012 by d 1st term of an ap is twice the common difference find in terms of the 5th term of the a*

**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 by Milen*

**world geography**

The statement, "People celebrate their birthdays on January 1st" is an example of what type of region? o climate o cultural o physical o political

*Wednesday, October 17, 2012 by joe*

**math**

4(3) squared do u times 4 by 3 and then square it or 1st square 3 then multiply the answer by 4

*Saturday, October 13, 2012 by anonymous*

**science**

Is venus the 1st, 2nd, 3rd, 4th, 5th, 6th, 7th, 8th or 9th smallest planet?

*Tuesday, October 9, 2012 by Slippy*

**statistics**

You are given the following data. Number of Absences Final Grade 0 95 1 91 2 82 3 69 4 67 5 58 - Find the correlation coefficient for the data. - Find the equation for the regression line for the data, and predict the final grade of a student who misses 3.5 days.

*Thursday, October 4, 2012 by mom*

**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 by Lisa*

**math**

there are 15 boys and 18 girls in fifth grade. Find the ratio of boys to girls in fifth grade.(how do I get the answer) can someone show me how to work the problem

*Monday, October 1, 2012 by dan*

**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 by Yog*

**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 by Lorraine*

**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 by alhaji*

**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 by alhaji*

**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 by Olyvia*

**math**

the "roundness of an integer greater than 1 is the sum of the exponenys of the prime number. for example, 20= 2to the squared multiplied by 5 to the 1st power,so 20 has a roundness of 3. what is the roundness of 1,000,000?

*Wednesday, September 12, 2012 by shauna*

**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 by liliana hernandez*

**algebra**

Tony went to the racetrack with $80. He won $15 on the 1st race, lost $12 on the 2nd, lost $6 on the 3rd and won $8 on the 4th. How much money did he have after the 4th race.

*Tuesday, August 28, 2012 by robin*

**algebra**

I'm having difficulty solving 0.7y+9=y+15????? I know the answer is 20 but can't remember procedure. Do I change the decimal to a fraction 1st???

*Thursday, August 23, 2012 by patricia*