Sunday

May 24, 2015

May 24, 2015

Number of results: 70,862

**Math!!!! *plz help***

Use Brackets. Write Each Expression so that it equals the number in blue. a) 8+2x5 50 b) 6x3+1 24 c) 1+6x3+1 25 d) 2+8x5-1 49 e)7+14\7-5 14 f)12\2x5-4 2 Help Me Please i dont get what to do and how to.... ( \ stands for division)
*September 10, 2012 by Saira*

**Solve Inequality**

Solve the inequality. Express your solution using interval notation and please show all of your work. x(x + 6)(8 – x) >= 0 I need help, I guess I'm not understanding the interval notation portion. I know, that when 0 <= x <= 8 and x <= -6 that the statement is true...
*May 29, 2011 by Armando*

**2 grade math**

Complete the chart to show the number 217 . 1 hund. blank tens and one ones?
*September 30, 2010 by osi123456789*

**Algebra B**

I am confused as to what the nth power is. Is it any number as an exponent that leaves the radicand the same? Could you please show me an example? thanks,
*February 5, 2011 by Nancy*

**Chemistry**

What mass of magnesium, Mg, contains the same number of atoms as 12g of Carbon, C Could you please show the method too Thanx :)
*March 7, 2011 by Jannie*

**math**

Turn 7 21 into a percent and decimal. First simplify the fraction. Show your answer on the number line.
*March 9, 2011 by julie*

**Math**

Solve the following equation in the complex number system. Please show all of your work. x^4 – 13x^2 – 90 = 0
*June 9, 2011 by Greg - PV*

**chem**

calculate the number of oxygen atoms in 0.25 mol fluoroacetic acid (C2H3O2F) show work if possible
*March 28, 2012 by lisa*

**Math**

Use 16 blocks to build a house.There are 10 squares and 8 triangles. show work and write number sentence
*December 2, 2012 by Kwenton*

**calculus**

Solve the equation in the real number system X^4+11x^3+24x^2-23x+35=0 Please show work
*December 27, 2012 by Austin*

**Algebra 2**

How do you get the real-number solutions of 5b^3 + 15b^2 + 12b = -36? I get to (b+3)(5b^2 + 12) and I don't know what to do after that. Can someone please show me how to finish this problem?
*October 9, 2013 by Krystal*

**5th Grade Math**

Can you please show me the steps on how to write each decimal as a mixed number in simplest form? 1. 8.9 2. 42.96
*November 26, 2013 by Stephanie*

**counting**

My daughter home work wants her to count the animals in each picture and draw the correct number of counters to show how many
*September 15, 2014 by Anonymous*

**Chemistry**

Develop a recipe for 1.00L of pH 4.50 buffer using only 17.4M HC2H3O2 and 3.00M NaOH (and deionized water). Be sure that it can accommodate an addition of at least .50 mol of strong acid or base with a change in pH less than/equal to 1.
*December 12, 2011 by Shana*

**6th grade math**

Victoria has pennies, dimes, and quarters. She has a total of $26.28. There are two times as many dimes as pennies. There are five times as many quarters as pennies. How many of each coin does she have? Can you please show work?
*January 14, 2010 by Vickie*

**Algebra re-posting**

I already typed this in 2 days ago, but i did not get to see if I had an answer back, can somebody help me to the link, or can help me do the work, I found the answer using the trial and error method, but is there another way to find it without using the trial and error ...
*April 24, 2008 by Hailea*

**math**

the nile river is the worlds longest river .let n sttand for the length in miles of the nile. th parana river is 3,030 miles long. write an expression to show how much longer the nile is than the panama.
*March 23, 2013 by taffy*

**linear algebra**

Bob and Doug play a lot of Ping-Pong, but Doug is a much better player, and wins 80% of their games. To make up for this, if Doug wins a game he will spot Bob five points in their next game. If Doug wins again he will spot Bob ten points the next game, and if he still wins the...
*December 7, 2014 by jolia*

**Advanced Math**

Solve 3-3 csc x = 17 for (theta) is less than or equal to x is less than 2(pi); give answer to the nearest 100th of a radian
*February 22, 2010 by Hilary *

**MATH**

Carolyn and Kim are selling lemonade this summer. It costs $0.10 to make each cup of lemonade. They are going to sell each cup of lemonade for $0.25. a. What is the total cost to make 55 cups of lemonade? Show or explain your work.$5.50 b. If they sell 55 ...
*February 20, 2012 by NINA*

**trigonometry**

can you explain to me in details please of how these type of questions can be answered without using a calculator to find the direct answer. Find the following functions correct to five decimal places: a. sin 22degrees 43' b. cos 44degrees 56' C. sin 79degrees 23'30'
*January 13, 2011 by anon*

**english**

only five days later, the child itch rash had almost completely disappeared which word is the simple subject in the sentence above? a) five b) days c) Childs d) rash
*January 26, 2011 by Anonymous*

**math help plzzzz!!!!**

Multiple Choice 1. What is 0.32 written as a fraction in simplest form? (1 point) thirty-two over one hundred eight over twenty-five one hundred over thirty-two sixteen over twenty-five 2. If Fran’s fudge recipe calls for two and one-half cups of sugar and she increases it by ...
*October 30, 2013 by josh *

**Math**

In 1976, there were five Sundays in February. In which of the remaining years in the 21st century will February have five Sundays?
*November 9, 2011 by MATH HELP PLEASE*

**math**

How can you compare 2 fractions by using a number line?
*March 24, 2011 by destiny*

**math**

How can you compare 2 fractions by using a number line?
*March 25, 2011 by destiny*

**math**

How can you order 3 fractions by using a number line?
*March 25, 2013 by mateo*

**math**

How can you order 3 fractions by using a number line?
*March 25, 2013 by mateo*

**statistics**

2. A researcher measures the heart rate in a population of runners and finds they have an average heart rate of µ = 50, σ = 5. You do not need to show a graph, only computation work. 2A. Based on the average heart rate cited above, what proportion would we expect to have ...
*June 27, 2014 by chris*

**programming**

Write pseudocode (using pascal) to accept as input names of an unspecified number of equipment rented, the name of the company, the number of days the equipment was rented for and the sales amount. The algorithm must determine the number of times each type of equipment was ...
*January 30, 2012 by John*

**math**

Four accounting majors, two economics majors, and three marketing majors have interviewed for five different positions with a large company. Find the number of different ways that five of these could be hired. One accounting major, one economics major, and one marketing major ...
*May 4, 2008 by Dana*

**Linear algebra**

Show that the origin is the only equilibrium point of the system? X=ax+by Y=cx+dy Wherea,b,c and d are constants, with ad-bc not aqual to 0(zero) Please show me how to do this problem Please show me the work
*October 11, 2012 by Fatima*

**calculus 2 **

Justify, with a written explanation or a mathematical reasoning and with a sketch of at least two different cases, the following properties of integrals: a) If f(x) is less than or equal to g(x) for a<=x<=b then integrate from a to b of f(x)dx is less than or equal to ...
*September 12, 2012 by bobby*

**algebra**

simplify the following radical expression: 3 sqrt (-27) a) -3 b) 3 c) 0 d) no solution exists do i write the sqrt like this or do i write like this sqrt () 3 -27 please show me the correct way to write it thanks
*June 17, 2010 by anthony*

**English**

Any ideas on grouping students? It has to be an activity.The only thing I have found is this: Recycle greetings cards/magazine pictures. Rip or cut old greetings card into the required number of group members, shuffle and distribute amongst the pupils, for example five cards ...
*May 2, 2009 by cary*

**Quick Question #2 (URGENT)**

How would show/ask 'What is your phone number?' in symbols and pictures. Would having a picture of a telephone and the number sign beside it, and write equal sign then question mark demsonstrate this question? Example: phone pic (#)=? If my idea doesn't demonstrate the ...
*September 11, 2009 by John*

**Math**

Use all ten digits from 0 to 9 only once. Do not use 0 in either the milions or thousandths places. What is the greatest number less than 5 million?
*September 17, 2012 by Keith*

**gg**

you need 50 pounds of two commodities costing $1.25 and $1.26 per pound,verify that the total cost is y=1.25x+1.60(50-x),where x is the number of pounds of the less expensive commodity.
*September 6, 2013 by Anonymous*

**ALgebra**

A spinner has five regions numbered 1 through 5. If the spinner is spun 100 times, we would expect about 20 of the outcomes to be Region 1. It can be determined that the spinner is unbalanced if x, the number of outcomes that result in Region 1, satisfies x-20/4 ˇÝ 1.645. ...
*May 18, 2009 by Thomas*

**CHEMISTRY**

Observations Mass of Fe metal:100 MG Volume of water in Calorimeter: 100 ML Mass of water in Calorimeter (use 1g per ml): 100G Initial Temperature of metal: 20 Initial Temperature of water: 20 Final Temperature (both metal and water): 100 Determine the heat gained by the water...
*November 30, 2008 by JASON*

**Spelling**

The homework assignment is first the child has four spelling words to write five times and memorize and then the homework assignmen says make three clusters of words using fl for example fly.
*March 21, 2012 by Allison*

**Maths Percentage (6th Grade)**

David has $5 in his wallet. This was 10% of the amount that he received from his mother. Find the total amount of money that David received from his mother. 35% of the number of books Ibrahim owns are fiction boos, find: a.) the total number of books he owns. b.) the number of...
*October 11, 2012 by Sam*

**English**

Bingo Game 2 Hello, class. Let's play the bingo game. Look at the bingo board in Part C. There are three expressions in the three blanks. There are six empty blanks. Look at the expressions on the left of the bingo board. There are 6 expressions. You should write down the ...
*September 4, 2008 by John*

**physics**

Your written homework will be graded entirely on the clarity and completeness of your derivation. No credit will be awarded for a final answer without a derivation. As usual, simplify your final answers as much as possible. A giant Pez dispenser of mass m rests on a ladder of ...
*April 11, 2013 by Nick*

**Math- Completely confused! **

Simplify each expression (where possible) and write the answer without using negative or fractional exponents. Assume that X>0. a. 8x^(1/3) b. (-8x)^(1/3) c. (8x)^(-1/3) d. (3x^(3/4))(16x)^(1/4) e. (x^(1/2)) / (x^(5/2) so far my answers are : a.2x b. -2x c.1/2x but i feel ...
*August 21, 2010 by Jackie*

**Precalculus**

A lattice point is a point with integer coordinates. How many lattice points (x,y) with -100 less than or equal to x less than or equal to 100 and -100 less than or equal to y less than or equal to 100 are on the graph of the parametric equations x=30-40 cos t y=-50 + 30 cos t ?
*February 28, 2014 by John*

**Precalculus**

A lattice point is a point with integer coordinates. How many lattice points (x,y) with -100 less than or equal to x less than or equal to 100 and -100 less than or equal to y less than or equal to 100 are on the graph of the parametric equations x=30-40 cos t and y=-50 + 30 ...
*March 2, 2014 by John*

**Math**

1. First of all, pick the number of times a week that you would like to have chocolate (try for more than once but less than 10) 2. Multiply this number by 2 3. Add 5 4. Multiply it by 50 5. If you have already had your birthday this year add 1761 ; If you haven't, add 1760 6...
*September 29, 2011 by Caryls*

**math**

As dry air moves upward it expands and in doing so cools at a rate of 1 degrees Celsius for each 100 m rise up to about 12 km If the ground temperature is 20 degrees Celsius find an expression for the temperature T as a function of the height H the answer is T=20-10h(h in ...
*October 30, 2013 by jordan*

**Math**

As dry air moves upward it expands and in doing so cools at a rate of 1 degrees Celsius for each 100 m rise up to about 12 km If the ground temperature is 20 degrees Celsius find an expression for the temperature T as a function of the height H the answer is T=20-10h(h in ...
*November 3, 2013 by Jordan*

**Differential Equations**

Consider the differential equation: dy/dt=y/t^2 a) Show that the constant function y1(t)=0 is a solution. b)Show that there are infinitely many other functions that satisfy the differential equation, that agree with this solution when t<=0, but that are nonzero when t>0...
*January 31, 2013 by Erica*

**Rob**

1) A White eye (w) female Drosophila is crossed with diminutive (dm) males. The F1 wild type females are then crossed to the double mutant, white eye, diminutive males and produce the following: white eye, normal size 487 normal eye, diminutive 475 normal eye, normal size 19 ...
*September 20, 2011 by Genetics*

**Genetics**

1) A White eye (w) female Drosophila is crossed with diminutive (dm) males. The F1 wild type females are then crossed to the double mutant, white eye, diminutive males and produce the following: white eye, normal size 487 normal eye, diminutive 475 normal eye, normal size 19 ...
*September 20, 2011 by Rob*

**Algebra**

One number is 6 more than another number and their sum is 2. Whats the equation for that. x = one number y = another number =============== x + y = 2 x -6 = y solve for x and y x=first number y=second number x=y+6 x+y=2 you can then solve these two equations for x and y... ...
*January 20, 2007 by Steve*

**Math**

Harmony just negotiated a new deal with Purple Parrot Records. She will be paid a monthly base salary of $3900 plus a commission of $5 per CD sold. Melody is trying to decide if this is a better deal than her monthly base salary of $4250 plus a commission of $2 per CD sold/ 21...
*December 2, 2013 by Jerald*

**English**

Thank you very much for your last corrections. Can you check these sentences, too? Thank you very much in advance. 1)Th urban population was affected by serious diseases such as smallpox nd typhus. 2)The majority of children died before the age of five (before they reached the...
*April 4, 2010 by Franco*

**show**

Returning back on question yesterday MattsRiceBowl, I want to have my own cooking show like Emeril's or Guy Fieri's shows on the Food Network. The purpose of the show is to teach teenagers and post-secondary students how to cook foods themselves if they don't know how, and to ...
*July 4, 2010 by AL 92*

**Language Arts**

Why does the author of "Always to Remember" discuss Maya Ying Lin's background? A. To show that she experienced hardships B. To appeal to Chinese-American readers C. To show its influence on her design D. To show her disintrest in architecture Is the answer C? Thanks
*October 23, 2014 by Anonymous*

**Math/probability**

Five different written driving tests are administered by the Motor Vehicle Department. One of these five tests is selected at random for each applicant for a driver's license. A group consisting of two women and three men apply for a license. (a) What is the probability that ...
*November 19, 2011 by Lorena*

**Math**

Which numbers are perfect squares? A) 64 b)900 c)120 d)1000 e)100 F) 10 000 How do u know each number is a perfect square? A) 1225= 35x35 B) 484= 2 x 2 x 11 x 11 C) 2025 = 45(square) the area of this square is 289 square unit. How so u that it's perfect square? Show that each...
*September 11, 2011 by Roxane smith*

**English**

1. Go straight to First Street. 1-1. Go straight to the First Street. (Do we have to use 'the' or not?) 2. It's just next to the hospital. 2-1. It's only next to the hospital. (Are both the same expressions?) 3. I'll go to the railroad station. 3-1. I'll go to the reailway ...
*October 21, 2008 by John*

**math**

6a^2+4a+5+3a^2+7a-2 That is the same thing as 9a^2+11a+3, but what is the question? You have just written an algebraic expression, not an equation to be solved. assuming you are required to factorise the equation and the expression give by drwls it factorises to (9a+3)(a+1) ...
*January 26, 2007 by chucke*

**Math**

Which is the expression that can be factored using the greatest common factor for this equation? 6p^3-12p^2+9p A. 3(2p^3-4p^2+3p) B. 3p(2p^2-4p+3) c. 3p^2(2p^2-4p+3) D. 6p(p^2-2p+9) I believe it is B because only A and B work but B is the greatest common factor. Is this ...
*March 29, 2013 by B6*

**math**

Write the answer to the problem as an algebraic expression. The product of two numbers is 30. One of the numbers is r. What is the other number? Our choices are: a) r/30 b) 30/r c) 30-r d) 30r I believe the answer is b but am thinking it may be c, any help?
*January 20, 2011 by m*

**Chemistry**

Use the periodic table and predict the number of electrons that will be lost or gained by the following elements as they change into simple ions. Write an equation using elemental symbols, ionic symbols, and electrons to represent each change. a) Ca b) Aluminum c) Fluorine d) ...
*February 6, 2014 by Ellenjoy*

**Math**

solve the system of linear equations using the addition method. Can you please show me the steps on how you reached the answer. Thank You 2x+20y= -144 12x+5y= 56
*May 11, 2010 by Heather*

**CALCULUS**

find f'(x) for f(x) = x/(sqrtx^2+1) please show all the steps. I'm realy confused on this one. I get as far as setting it up using the quotient rule then I go blank. thanks
*March 16, 2011 by redgy*

**physics**

using a sketchs, show the type of directions of forces acting on the following farm hand tools i) a hoe ii) a rake for land clearing 0
*January 27, 2012 by callister*

**Calculus**

Find the instantaneous rate of change of V with respect to r when r=100 V(r)=.2r^2-20r+600 using limit definition. Please show work for understanding, thank you :)
*February 14, 2013 by Tori*

**math**

Equivalent Expressions 1. Which algebraic expression is equivalent to the expression below? 3(x - 2) + 12(x + 8)
*February 7, 2011 by Max*

**maths**

given tht g(x)=2x+1/5 and f(x)=x+4 write an expression for gf(x) write an expression for me plz
*January 26, 2014 by krissy*

**Maths **

How do I write an equivalent expression to the expression below (17x 93) / (17x 97)
*April 27, 2014 by Pinks*

**algebra worD PROBLEM**

1) For a walkathon a sponsor commmited to give you a flat ffe of $5 plus $2 for every mile you walk. Write an expression for the total amount you will collect from your sponsor at the enf of the walkathon. Then evaluate your =expression for 20 miles walked. I goet ; $2m + $5...
*October 24, 2011 by marko*

**word problem help algebra**

1) For a walkathon a sponsor commmited to give you a flat ffe of $5 plus $2 for every mile you walk. Write an expression for the total amount you will collect from your sponsor at the enf of the walkathon. Then evaluate your =expression for 20 miles walked. I goet ; $2m + $5...
*October 24, 2011 by marko*

**English**

1. He found the article at the lost and found office. 2. He found the article at the Lost and Found Office. (Which expression is correct?) 3. 2+5 =7 Two plus five is seven. 4. 3X6=18 Three multiplied by six eqals eighteen. 5. 10-8=2 Ten subtracted from eight leaves two. 6. 36...
*June 13, 2009 by John*

**Math**

1-)A passenger boat which travels 6 mph faster than a freighter required 3 days less time to make a trip of 2592 miles. Find the rate of the passenger boat. 2-)For the first of two basketball games the price of each reserved seat was $1.50,the price of each unreserved seat was...
*May 8, 2014 by Lina*

**Math**

Evaluate the expression without using a calculator: log4(2)= ____? Use a calculator to find the logarithm accurate to four decimal places: log4(27)= ____?
*February 14, 2010 by jh*

**ALgebra**

distance and time. A car is traveling 60 miles per hour, . Give the time take the car to travel 360 M miles.by using a rational expression
*September 3, 2011 by Josie Wilson*

**algebra**

Form a polynomial f(x) with real coefficents having the given degree and zeros Degree 5; Zeros: 2; -i;-7+i Enter the polynomial f(x)=a(____) type expression using x as the variable
*June 8, 2013 by Sharday*

**8th grade Math**

Khalid uses Penelope’s bag of letter tiles to create a different game in which he tries to randomly draw a set of five tiles with consecutive letters. If Khalid plans to draw five tiles from the bag, without looking and without replacing any tiles, what is the probability that...
*February 1, 2011 by Anonymous*

**calculus**

write the expression in the form bi, where b is the real number squareroot-16 squareroot-25 squareroot-3 squareroot-5
*October 29, 2009 by tommy*

**Algebra**

You are a contestant on a game show and have the chance to win a car by rolling 5 dice. Each die has three sides that say CAR and three sides that are blank. In order for you to win the car you CAR on all five dice. You have three chanat ces to roll the dice. On each roll you ...
*May 1, 2012 by Dena*

**Algebra**

Greta invests $10,000 in an investment that pays 3% interest, compounded annually, for the first three years, then 9% interest, compounded annually, for the last three years. Rui invests $10,000 in an investment that pays r% for all six years. The two investments are worth the...
*April 2, 2009 by Cassie*

**MATH**

Write probability as fraction 1. Sam flips two coins. Find probability of 1 head and 1 tail. I think 2/4 or 1/2 2. You roll 1 number cube to show an odd number. I think 3/6 or 1/2 3. Sheila has 8 apples; 5 of them are red. I think 5/8 4. Of 12 books, 3 are fiction I think 3/12...
*March 13, 2014 by Anonymous*

**Trigonometry **

For 0<x<pi/2, sin x and cos x are both less than 1 and greater than 0 (easy to see). We are also given that sin^2x+cos^2x=1. Use this to show that sin^7x+cos^7x<1 for 0<x<pi/2. Unsure on how to proceed?
*October 27, 2013 by Sam*

**math**

Completely factor the expression 16t3 − 50t2 + 36t. A. 2t(8t − 9)(t − 2) B. Prime C. 2t(8t + 9)(t + 2) D. 2t(8t − 25t + 18) Completely factor the expression 48u4v4 − 18u2v2 − 3u8v5. A. Nonfactorable B. 3u2v2(16u2v2 − 6 − u6v3) ...
*May 14, 2015 by Kenny D*

**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*

**Math**

Jim is paid overtime when he works more than 40 hours of per week. Write an expression for the number of hours he works overtime when he works h hours. Find the number of hours Jim works overtime when he works 40, 44, 48, and 52 hours
*September 6, 2012 by Joe*

**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*

**stats-please help**

MEAN=10 & STD DEVIATION=2. FIND THE PROBABILITIES: 9.4 less than X less than 10.6? i have 2 different answers but am checking the answer. thank you
*March 8, 2011 by jean *

**Precalculus**

Solve cos(x) = -0.44 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 marie darling*

**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*

**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*

**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*

**math**

What is the least number of place-value blocks you need to show 4,200? The greatest? well, here is what the blocks are: 4 2 0 0 thousand hundreds tens ones does this help at all? I'm actually trying to figure this out so I can help my daughter. I understand that part of it, ...
*September 28, 2006 by melissa*

**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*