Friday

March 6, 2015

March 6, 2015

Number of results: 68,946

**precalculus**

Solve sin(x) = 0.64 on 0 less than or equal to x less than 2pi There are two solutions, A and B, with A < B Give your answers accurate to 3 decimal places
*April 7, 2013 by anonymous*

**mtah problem**

the girls gym teacher needs to purchase 15 softballs, 5 package of tennis balls and two soccer balls.she plans to collect $1 from each of her students to help pay for balls.write and evaluate an expression to show how much more the teacher will have to pay.
*January 13, 2009 by morgan*

**Math/spanish**

how do you translate the number 501,289 into the spanish written form? (five hundred one thousand two hundred eighty nine)in spanish?
*September 10, 2007 by Meredith*

**Simple Math**

Two eight-sided number cubes are thrown. Given that one of the cubes shows a five, what is the probability that the sum of the numbers that come up on the two cubes is six?
*January 31, 2013 by Jessica*

**maths**

using the mean valiue thereom on f(x)=arcsin(x), show that x< arcsin(x)< x/(sqrt1-(x^2)) for 0<x<1
*December 9, 2009 by nikki*

**algebra**

solve using elimination please show how to come up with answer. 6x - 3y = 18 6x + 3y = -12 Please help!!!
*August 21, 2014 by michael R*

**Chemistry**

Can you draw a dipeptide and show all the functional groups, atoms, and bonds, any full charges on atoms, and the "R" group. Also, show N and C terminus? It would really help if you can show me pictorially.. thanks
*October 11, 2011 by Sam*

**Chemistry**

How many significant figures in total do you have to use when using the electronic balance that has accuracy up to three figures after the decimal point that you used in the lab, to weigh a sample that is less than 10 grams.
*September 9, 2007 by Heather*

**Math**

Solve the inequality by first rewriting it as an equivalent inequality without absolute value bars. Express solution set using interval notation. | x+3 | +8 is less than or equal to 14 Thanks so much for helping me!
*February 1, 2012 by Chelsea*

**statistics**

Using the average and standard devation for length variable from problem 3,find the probability that the length of 35 movies is less than 120 minutes. Assume the distribution is normally distributed. interpret your result.
*February 27, 2013 by kat*

**Algebra 1 please help**

There are 15 violinists in the orchestra this year. Next year, two violinists will leave and some new violinists will join the orchestra. If v is the number of violinists who will join the orchestra, write an expression to represent the number of violinists in the orchestra ...
*January 14, 2015 by Steph*

**algebra 2**

PLEASE HELP wiTH ALL OF THEse. I DONT KNOW WHERE TO START---THANKS! 1. At 2pm the number of bacteria in a colony was 100, by 4pm it was 4000. Write an exponential function to model the population y of bacteria x hours after 2pm. 2.Using the information in problem 1, how many ...
*February 24, 2008 by cal*

**algebra 1**

a high school wrestling mat must be square with 38-foot sides and contain two circles as shown. suppose the inner circle has a radius of "s" feet and the outer circle's radius is nine feet longer than the inner circle. *write an expression for the area of the larger circle. * ...
*March 5, 2008 by trixie*

**MATH**

Can anyone please help me with this? Can anyone please build or generate at least five Pythagorean Triples using one of the many formulas available online. Then After building the triples, verify each of them in the Pythagorean Theorem equation. Thank you so very much.
*August 19, 2011 by John*

**To Helper**

I had a problem to solve, and I dont get how to make equations from this problem. Mrs. Chans math class contributed 2 dollars and $1 coins to an earthquake relief fund. the number of $1 coins contributed was 8 less than 5 times the number of $2 coins contributed. if class ...
*January 13, 2011 by Mathew*

**Math**

simplify the following expression and show your problem solving strategy x cubed + x squared + x + 1 + 2(x cubed + x squared + x + 1) + 3(x cubed + x squared + x + 1) + ....100( x cubed + x squared + x + 1)
*November 5, 2008 by Rose*

**Math/Calculus**

Please check my work and correct any errors/point out any errors. Thanks. Solve the initial-value problem using the method of undetermined coefficients. y''-4y=e^xcos(x), y(0)=1, y'(0)=2 r^2-4=0, r1=2, r2=-2 yc(x)=c1*e^2x+c2*e^-2x yp(x)=e^x[Acos(x)+Bsin(x)] y'p(x)=e^x[-Asin(x...
*July 12, 2007 by COFFEE*

**Pre-Calculus**

A local photocopying store advertises as follows. " We charge 14 cents per copy for 150 copies or less, 6 cents per copy for each copy over 150 but less than 230, and 3 cents per copy for each copy 230 and above. " Let x be the number of copies ordered and C(x) be the cost of ...
*September 30, 2013 by Ann*

**algebra**

i have no less than 6,000 to spend and no more than 10,000 write an inequality to show how much I have to spend
*February 13, 2010 by charlyn*

**math**

I need an expression written for the following logs using "sum, difference, or multiple of logarithms." a) log[base(2)] ((x^2) - 9)/(x^3))^3 b) log[base(a)]5a^4 Hopefully they are clearly written. thanks. -roberto
*April 8, 2013 by Roberto*

**English**

Question: Do you have the star Show (TV) program in the USA? What kinds of people show up in the star Show?
*June 21, 2014 by rfvv*

**Math**

Could you show me how to work through this problem? Show me steps Solve for s. Show all steps. –3s ≥ 18
*October 25, 2014 by mstv*

**Calculus Help Please!!! **

if f(x)= x+(1/x), find f'(x) using the limit definition of derivative. Please show steps!!! Thank you!!!
*February 25, 2014 by Tenshi *

**Visual Basic (Computer Programming)**

ALGORITHM EXERCISES 1. Wilma Peterson is paid by the hour. She would like a program that both calculates and displays her weekly gross pay. For this exercise, you do not need to worry about overtime pay, as Wilma never works more than 40 hours in a week. Desk-check your ...
*January 16, 2013 by Erick*

**algebra1**

an internet serive provider charges $9.95/month for the first 20 hours and $0.50 for each additonal hour. write and expression presenting the charges for h hours of use in one month h is more than 20 hours. what is the charge for 35 hours... pls show me the formula to work ...
*August 26, 2010 by alanaR.*

**math**

Jackson has 14 pet birds and rabbits. The total number of rabbits have 44 more legs less than the total number of birds. How many pet birds does he have?
*October 17, 2013 by Jada *

**science**

4.which of the following describes the use of a renewable form of energy? (1 point). a. using natural gas to heat a house b. using a windmill to grind grain c. using petroleum to run a car d. using coal to generate electricity
*February 11, 2014 by bla*

**Math Graphing**

Graph this: y greater than or equal to 2x-3 2x-2y is less than or equal to 1 2x-2y is less than or equal to 1 2x is less than or equal 2y x is less than or equal y how do u graph this? how to graph x is less than or equal to y?
*June 1, 2010 by Skye*

**10th grade**

This week, from Sunday until Thursday, the school drama team sold adult and student tickets to their play. The person in charge of selling the tickets kept a record of the number of adult and student tickets sold on each day. However, she forgot which day the tickets were ...
*September 30, 2010 by rashmi*

**Math**

To determine if 3417 is prime, you would have to try dividing 3417 by every whole number less than 3416. True or false and how did you get the answer
*December 4, 2007 by Beth*

**11th grade Algebra 2**

Marciella has a bag that contains 35 nickels and quarters. The total value of these coins is less than $2.50. What is the maximum number of quarters that meets these conditions?
*April 7, 2010 by David Nipp*

**6th grade**

I am an improper fraction that is more than two and one third and less thatn two and three fourths. The sum of my numerator and denominator is 29. What number am I?
*November 22, 2010 by jonothan*

**5th grade Math**

Clue1: i am greater than 500 but less than 1,000. Clue2: My square root is a square number. Also please explain your answer. Thank you.
*September 13, 2011 by Alexia*

**MATH**

a box contains 20 slips of papers, numbered 1-20. A slip of paper is drawn from the box and the number is noted. Find the probability that it is a positive integer less than 21.
*October 3, 2011 by Katie*

**finite math**

suppose that 3 digits are selected at random from the set S={1,2,3,4,5,6} and are arranged in random order. Find the probability that the resulting 3-digit number is less than 300.
*September 4, 2012 by allen*

**Public Finance**

A corporation has $7 mil. in equity. During the tax year it takes in $4 million in receipts and earns $ 2 million in capital gains from sale of subsidiary. It incurs labor costs of $1 million, interest costs of $250,000, material costs of $500,000, and pays rent for structure ...
*January 29, 2011 by Mel*

**algebra 1**

please explain to me how I work out problems such as "-2-3" to get the correct answer and show the same on a number line
*August 26, 2010 by joe*

**Math**

Writing to Explain: How can you use models to show and name the number 1,400in two different ways? Expalin.
*September 21, 2010 by Amanda*

**chemistry**

Please show me how to calculate the number of moles in 8.45 x10 to 21st power formula units of calcium chloride?
*January 30, 2011 by Bev*

**Geometry**

Find one counterexample to show that each conjecture is false. The sum of two numbers is greater than either number.
*August 7, 2011 by Catelin*

**math**

write an equation to show the relationship between the score received and the number of questions the students answers correctly
*August 25, 2011 by zach*

**college algebra**

Solve the following equation in the real number system. Please show all of your work. 2x^3-3x^2-14x+15=0
*October 29, 2011 by julez*

**pre calculus**

solve the following equation in the complex number system Please show all your work. 5x^5 + 32x^4 - 5x - 32 = 0
*December 21, 2011 by Michelle*

**Chemistry**

How many atoms are present in a sample of 2.0 x 10^23 molecules of C7H5(NO2)3? Do you use Avogadro's Number? And please show work.. :)
*January 6, 2012 by Sunny*

**college algebra**

Solve the following equation in the complex number system. Please show all of your work. 2x^5-3x^4-32x+48=0
*January 18, 2012 by Jo *

**algebra**

i have to write a number in the block to make this true how do i get the answer for 70-30=40- please show me a example so i can complete my work
*May 22, 2012 by avonia*

**Math**

Thank you Steve for your help! I need help on another question. I have to show 10/8 divided by 5/8 on a number line. I don't know how to set this up. I am lost!!! Please help to explain this. Thank you
*October 30, 2012 by Cherie*

**Math**

in the problem 15 + 37=52, show how to make ONE addend the next tens number. Complete the new addition sentence __+__=__????
*October 9, 2013 by Julie*

**math**

can anyone help me with these 3 problems I am trying to check my daughters hoime work it has bee na few years. 1. The sum of n and twenty -two, multiplied by three, is 78 2. the product of z and 17 is less than or equal to the difference of twenty -one minus z. 3.two increased...
*September 15, 2006 by liz*

**finite Math**

how do I set up this problem, purchase a car today with inflation rate of 4% per year compounding annually for the next five years what would the cost of a $17,000 car be five years later
*June 20, 2014 by Cindy*

**Science**

Plants=storing water Bacteria and fungi=decomposing dead organisma Earthworms=making soil less compact Bees=pollinating flowering plants Nearly all organisms=cycling oxygen and carbon dioxide Accoring to the chart,what would most likely happen in an ecosystem if there were a ...
*February 13, 2012 by Colton*

**Algebra 2**

Make a table with a process column to represent each pattern. Write an expression for the number of tiles in the nth figure. The picture is a column of squares that is 4X6. In each figure its subtracting a square.
*August 18, 2010 by Abby*

**math **

Clara's pay from her paper route is based on the expression $15 + $0.10p, where p is the number of papers she delivers during the wiik. What would her weekly pay be if she deliver 315 papers each week?
*January 25, 2012 by peter*

**Internetworking Design**

OSPF lab. Using a simulator I need to create a four router topology. Using any interfaces of my choice. I am given /24 networks – choose interface addresses from the given network ID. Configure all routers in OSPF area 0 and make sure you can ping from end-to-end. Use the ...
*February 23, 2008 by Amy*

**algebra 1...urgent**

a high school wrestling mat must be square with 38-foot sides and contain two circles as shown. suppose the inner circle has a radius of "s" feet and the outer circle's radius is nine feet longer than the inner circle. *write an expression for the area of the larger circle. * ...
*March 5, 2008 by trixie*

**physics**

Sound travels at 343 m/s in the air. What distance from the student is the lightning strike, in meters? Write an expression that describes the skydiver's average speed, v1 during the period before opening the chute in terms of the given quantities. Expression. v1 = ...
*September 11, 2014 by joe 22*

**Math**

You are making ballon bunches to attach to tables for a charity event. You plan on using 8 ballons in each bunch. Write a rule for the total number of balloons used as a function of the number of bunches created. Identify the independent and dependent variables. How many ...
*August 9, 2011 by Nick*

**math - equivalent expression**

This is just a quick question. I need to use the distributive property to write an equivalent variable expression. the problem is 8(x+6). would 14/x be a valid answer? and also if possible, could someone explain how this works?
*October 6, 2009 by john*

**chemistry**

consider the following changes at constant temperature & pressure H2O(s) --yields-- H20(l); Delta H1 H2O(l) --yields-- H2O(g); Delta H2 H2O(g) --yields-- H2O(s); Delta H3 Using Hess's law, the sum of the deltas is a. equal to 0 b. sometimes greater than zero, sometimes less ...
*November 14, 2012 by marcus *

**Math**

In addition to the clues, he says that there is a five in the tens place,a seven in the ten-millions place, and a 3 in the hundred-thousands place. What number would fit with both sets of clues
*November 20, 2012 by yalianne sierra*

**calculus**

Find an expression for the function whose graph is the given curve. a) The bottom half of the parabola x+(y-1)^2=0 b) The top half of the circle (x-1)^2 + y^2= 0 I think I have a vague idea of what I need to have in my expression for b; I know it's a circle with a center (1,0...
*September 11, 2007 by Kelly*

**math**

The least common multiple of two numbers Is 60 , and one of the numbers is 7 less than The other number. What are the numbers
*September 4, 2014 by Anna*

**reading and math**

why do kids have to read math and reading thare should be less homwork less reading and less math
*October 25, 2012 by teddy dunc*

**math**

Suppose your teacher tells you to write a word problem using the number 3. Which would be the best object to use in your problem? Explain. Then write and solve a word problem using that object. (tricycle, bike, wagon)
*September 24, 2014 by Bryce*

**algebra**

A movie theater has 400 seats. Tickets at the theater cost $8 for students, $10 for adults, and $7 for senior citizens. On a night when all the seats were sold, the theater made $3,535 from ticket sales. If the number of adult tickets sold was 10 less than the number of ...
*July 16, 2014 by Anonymous*

**Stats**

Find the number z (± 0.01) such that the proportion of observations that are less than z in a standard Normal distribution is 0.8 Find the number z (± 0.01) such that 59% of all observations from a standard Normal distribution are greater than z
*May 26, 2012 by Brittany*

**math **

my ten digit is 1 less then the sum of 4 + 3 my ones digit is 2 more than my tens digit what number am i?
*November 5, 2012 by lori*

**Pre-Calculus**

A local photocopying store advertises as follows. " We charge 14 cents per copy for 150 copies or less,6 cents per copy for each copy over 150 but less than 230, and 3 cents per copy for each copy 230 and above. " Let x be the number of copies ordered and C(x) be the cost of ...
*September 30, 2013 by Ann*

**Math**

How do you calculate this problem (55)(38/3)(5280) (55)(38/3)(5280) = (55)(38)(5280/3) You can see that 5280 is divisible by 3 using this trick. Add up the digits of the number and if that is divisible by 3 then the number is also divisible by 3.
*May 18, 2007 by Kim Jones*

**Ecology**

Estimate the fish population of Lake Champlain using the Lincoln-Peterson Method. -Number of fish of 1st capture: 60 -Number of fish of 2nd capture: 65 Marked fish in 2nd capture: 10 -Number of fish of 3rd capture: 65 Marked fish in 3rd capture: 15 -Number of fish of 4th ...
*February 16, 2011 by Anonymous*

**Pre-Algebra**

can someone show me how step by step to convert this problem 45 mi/h=ft/s using dimensional analysis?Thanks.kj
*January 1, 2011 by kj*

**elementary**

Draw a picture Draw two ways to show 43 using place-value blocks.
*December 3, 2012 by Latha*

**intermediate algebra**

Essay.Show work.The area of a rectangular swimming pool is given by 3x^2+11x+6ft^2.One side lenght of the pool is given by 3x+2ft.What is the algebraic expression for the other side of the pool.Simplify,an include correct units as part of your answer
*April 12, 2012 by Lueshelle*

**Math**

Hey can anybody please help me with this? Im stuck? I got the first part right, but I dont really know. Ok here's the problem: Annie kept track of the cars she saw on the highway? She saw twice as many Toyotas as Skyalks. The number of Pintos was eight less than the number of ...
*September 16, 2010 by Anonymous*

**GLOBE/GEOGRAPHY HELP**

Rotate the Earth using the arrows on the globe that show the direction of rotation. As viewed from the North Pole, what direction is the Earth spinning? clockwise or counter-clockwise? I suggest you do this exercise in class, since that globe apparently has arrows that show ...
*October 11, 2006 by Suzanne*

**math**

Mrs. Rossi wrote the following clus for a mystery 4-digit number. .The tens digit is twice the one digit .The hundreds digit is twice the ones digit. .The ones digit is 3. .The sum of the digits is 19. What is the mystery number? show the work.
*November 17, 2010 by gabriella*

**math**

A company wants to send out a mailer. A mailer be sent only if it has an envelope and a stamp. For the number of mailers printed, the company has only 1/2 the number of envelopes needed. Of those mailers for which there are envelopes, the company has only 1/3 the number of ...
*July 23, 2014 by Johnny *

**pre calculus**

if there are initial 2500 bacteria in a culture, and the number of bacteria double each hour, the number of bacteria after t hours cab n be found using the formula=N=2500(2^t).how long will it take the culture to grow to 75,000 bacteria.
*December 17, 2010 by john*

**math**

1. You have recently found a location for your bakery and have begun implementing the first phases of your business plan. Your budget consists of an $80,000 loan from your family and a $38,250 small business loan. These loans must be repaid in full within 10 years. The first ...
*September 26, 2009 by Anonymous*

**Rounding Decimals**

Marley and Hassan rounded the number 7.483. Marleys answer was greater than 7.438. Marleys answer was greater than 7.483, and Hassan's anser was less. Towhat place might the number have been rounded by Marley? By Hassan? Explain.
*February 9, 2011 by Iris*

**geometry**

sketch a number of pens that can be constructed using 24 m of fencing
*March 28, 2010 by sadie*

**Math**

Write a two digit odd number using 5 and 6
*February 22, 2013 by Anonymous*

**algebra**

simplify the number using the imaginary unit i. √-16
*October 21, 2013 by johnny*

**math**

add 825 + 138 using number line
*February 6, 2014 by Jadarrius*

**math - question**

In a television game show, there are five questions to answer. Each question is worth twice as much as the previous question. If the last question was worth $6400, what was the first question worth? is the answer 400
*May 12, 2009 by anonymous*

**math **

Calculate the value of the following in exponential form, using standard scientific or "e" notation (for example, 105 = 1.05e2). Enter your answer with the correct number of significant figures. 885.75 g + 10.151 g - 25.50 g Calculate the value of the following in exponential ...
*September 23, 2010 by help?*

**math word problems**

I don't even know what this means. Please help Five cards are drawn in succession, without replacement, from a standard deck of 52 cards. How many sets of five cards are possible? A. 500 B. 12,994,800 C. 2,598,960 D. 433,160
*March 27, 2011 by kacee*

**grade 6 math**

Clayton and Olivia played a computer game. Olivia's final score was 2 306 421 and Clayton's was 2 302 972. Show these numbers on a number line. Whose score was greater? I know which score is greater but I am having trouble figuring out the number line and what to go by. Thanks
*September 29, 2010 by peyton*

**Chemistry**

1) Balance this redox reaction using the oxidation-number method. Zn + O2 + HCl ® ZnCl2 + H2O 2) Balance this redox reaction using the half-reaction method. (basic solution) Zn + MnO4- ® Zn(OH)2 + MnO2
*October 13, 2010 by Sara*

**math**

Suppose that the number of new homes built, H, in a city over a period of time, t, is graphed on a rectangular coordinate system where time is on the horizontal axis. Suppose that the number of homes built can be modeled by an exponential function, H= p * at , (H = p*a^t) ...
*July 7, 2010 by Anonymous*

**Statistics**

Below Find a sequence of probabilites generated using excel.What is this mystery poisson functions M? Be precise, down to one decimal and show work.
*March 8, 2007 by Jason L*

**math**

Draw a picture of base-ten blocks and use the area interpretation for multiplication to show 34 X 28 complete the calculation by using a paper-and-pencil algorithm
*June 15, 2009 by heatherly*

**Algebra 1**

Okay. So I am completely lost with this... Any help would be great! 3. Solve the system using any method – graphing, substitution, or linear combination. Make sure to show your work. 2x + 5y= 8 x + 3y= 2
*January 10, 2013 by Miranda*

**math**

ann wrote a three digit number. the digit inthe hendreds place is 4 less than the digit in the ones place. the digit in the tens place is two more than the digit in the ones place.the sum of the three digits is 16. what is the three digit number?
*August 27, 2012 by Maria*

**Physics**

1.A plane traveling at 300.0 km/h attempts to land on a 500 m runway. The plane’s engines and brakes accelerate uniformly at –5.0 m/s2. Will the plane be able to land safely? Show all your work. Include any equations used, the given and unknown. Show all calculations. Express ...
*October 22, 2014 by May*

**Math**

the lcm of two numbers is 60 and one of the numbers is 7 less than the other number, what are the numbers?
*September 9, 2014 by Me*

**math**

Lee forgot to study for her geography quiz, but she was not too worried because the quiz had only five true-false questions.Suppose she guessed all of the answers.What are the chances that she passed with four or five correct answers?
*January 8, 2013 by hamid*

**probability. review questions**

1)what is the probability that a seven-digit phone number has one or more repeated digits? 2) five letters, with repetition allowed, are selected from the alphabet. what is the probability that none is repeated?
*July 28, 2010 by sha*

**Algebra 1: 8th Grade**

Simplify each expression. Write your answers using positive exponents. Check Answers Please: 1) 2^3*2^4 = 2^7 2)10^6/10^9 = 1/10^3 3)3^5*3^1 = 3^6 4)5^7*5^-4 = 5^3 5)9^3/9^-10 = 9^13 6) 4^11/4^8*4^-2 = 4^5 7) a^2*a^3 = a^5 8)b^-9/b^4 = 1/b^13 9)c^-5*c^-2 = 1/c^7 11)(5d^4)(8d^6...
*April 28, 2009 by Joy*

**algebra**

the sum of two adjacent angle is 80°the larger angle is 8°less than 3 tines the smaller find the number of degrees in each angle
*February 5, 2012 by tanya*

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