Saturday

December 20, 2014

December 20, 2014

Number of results: 67,206

**Math - Reposted - Mahi's question**

Fill the seven quart. Empty into the five quart, leaving two. Mark the 7 quart jar at that 2 quart level. dump the five quart contents. Pour the 2 quarts into the five, marking its level. Fill the seven quart to the 2 quart level where marked. Fill the five quart to the two ...
*February 9, 2007 by bobpursley*

**math**

I need help on how to do this problem y(y _ 5).(wy)using the commutative and associate properties of multiplcation. I need someone to show me please thank you
*January 10, 2009 by sandra*

**math**

a jetliner is crusing at an altitude of 31,680 ft. What is the altitude in miles? Show work by using demensional analysis.
*October 26, 2010 by Anonymous*

**Calculus**

Find the derivative of the function using the definition of a derivative. F(x)=squareroot(1-3x) Please show work for understanding, thank you! :)
*February 14, 2013 by Tori*

**algebra 1**

Simplify using long division(please show work so I understand) 1.Divide (72-8x^2+4x^3-36x)by (x-3) 2.Divide (8b^3-6) by (2b-1)
*April 15, 2013 by Jan*

**Statistics**

Construct the appropriate control chart for the observations listed below, using 3 sigma limits. Product Number - Number of defects 1 - 3 2 - 3 3 - 6 4 - 5 5 - 3 6 - 5 7 - 2 8 - 2 9 - 3 10 - 4 11 - 6 a. Determine the upper and lower control limits. b. Discuss the chart you ...
*January 30, 2009 by Johnny*

**Biochemistry**

a closed circular DNA molecule has 3675 base pairs and a topological linking number (Lk) of 345. Using 10.5 base pairs per turn, what would the writhe number (Wr)be for the molecule in order for it to optimize its base pairing?? I'm guessing we use the formula Lk= Tw+Wr. ...
*October 31, 2013 by Anonymous*

**MAth**

A bOY goes on VacATION with fivE shirts.each day HE used TWO diferent shIRts EACH day. HOW MANy DAYS will IT TAKE him TO USE thE FIVe SHIRTS WITHOUT REPEATINg the pattern
*October 24, 2012 by THERESA*

**accounting**

Salt River Copmany is evaluating a capital expenditure propsal that has the following predicted cash flows: Intial investment $(43,270) Operation Year 1 20,000 Year 2 30,000 Year 3 10,000 Salvage 0 a. Using a discount rate of 14 percent, determine the net present value of the ...
*September 21, 2012 by dillon*

**accounting**

Salt River Copmany is evaluating a capital expenditure propsal that has the following predicted cash flows: Intial investment $(43,270) Operation Year 1 20,000 Year 2 30,000 Year 3 10,000 Salvage 0 a. Using a discount rate of 14 percent, determine the net present value of the ...
*September 21, 2012 by dillon*

**statistics**

Webcredible, a UK-based consulting firm specializ- ing in websites, intranets, mobile devices, and applications, conducted a survey of 1,132 mobile phone users between February and April 2009. The survey found that 52% of mo- bile phone users are now using the mobile Internet...
*November 18, 2012 by Anonymous*

**statistics**

According to a survey 35% of adults are against using animals for research. Assume that this result holds true for the current population of all adullts. Let X be the number of adults who are against using animals for research in a random sample of 2 adults. Find the ...
*April 9, 2011 by Sarita*

**values for k, math,help**

can someone show me the steps to work out this problem that is diving me nuts.. Directions: Find all positive values for k for which each of the following can be factored. x^2+x-k I am completely cluelis towards this problem....i've tried it many different ways.... x= -1/2 +- ...
*February 25, 2007 by jas20*

**Algebra**

Rewrite the rational expression as an equivalent rational expression with the given denominator. (Both are fractions) It's 21 over x squared minus 6x is equal to 1 over x (x-6)(x+5) -21 = 1 x2 -6x x(x-6)(x+5)
*March 16, 2009 by Estela*

**math**

Factor the given expression. a) 6y^2 − 53y − 9 b) Set the expression equal to zero and solve for y. y= (smaller value) y= (larger value)
*January 27, 2012 by Rachel*

**Algebra**

Use symbols to write the expression and then evaluate it Thirty six squared divided by six cubed The given expression symbol is? Evaluate it
*September 23, 2012 by Tammy*

**Math**

Find the general expression of the kth nonzero term in the taylor series for f(x)=3/(1+x) (exclude any zero terms in the series when finding this general expression)
*June 19, 2013 by Unknown*

**Math**

Find the general expression of the kth nonzero term in the taylor series for f(x)=3/(1+x) (exclude any zero terms in the series when finding this general expression)
*June 19, 2013 by Unknown*

**Algebre**

Please help I don't understand Contract the expression this is use properties of logarithm to write each expression as a single logarithm with a coefficient of 1. In3-3 In 9 +In 18 In3-2 in (9=6) In 3-2 (In 4 In 8) Thank you so much
*May 6, 2014 by Mary Ann*

**6th grade**

write an expression for the area of this rectangle 20cm on the top 4cm on the right at the top and 8cm on the left.evaluate your expression to find the area.
*September 20, 2009 by mahogany*

**math**

A.use the distributive property to write an expression that is equivalent -3(x + - 8) if the coefficient of the variable is increased by 10, what would the new expression be after you apply the distributive property?
*January 24, 2011 by karon*

**statistik**

can you show me the caculation :) Last year, 50% of MNM, Inc. employees were female. It is believed that there has been a reduction in the percentage of females in the company. This year, in a random sample of 400 employees, 180 were female. a.Give the null and the alternative...
*December 2, 2012 by mira*

**math**

(b) the digits of a positive integer having three digits are in A.P and their sum is 15. The number obtained by reversing the digits is 594 less than the original number. Find the number. (c) if a,b,c are in A.P, prove that (i) (ab)^-1, 1/ac, 1/bc are also in A.P. (ii) a(b+c...
*September 23, 2009 by Edwin*

**math**

(b) the digits of a positive integer having three digits are in A.P and their sum is 15. The number obtained by reversing the digits is 594 less than the original number. Find the number. (c) if a,b,c are in A.P, prove that (i) (ab)^-1, 1/ac, 1/bc are also in A.P. (ii) a(b+c...
*September 23, 2009 by Edwin*

**statistics**

A sample of purchases at the local convenience store has resulted in the following sample data, where x = the number of items purchased per customer and f = the number of customers. x= 1,2,3,4,5 f=8, 20, 8, 8, 7 What does the 20 stand for in the above table? Find the midrange ...
*September 29, 2012 by Anonymous*

**Statistics**

the average length of time for students to register for fall classes at a certain college has been 50 minutes. a new registration procedure using modern computing machine is being tried. if a random sample of 12 students had an average registration time of 42 minutes with a ...
*March 10, 2011 by Jacy*

**MATH**

I have 9 digits. My ten millions digit is 0 and is 8 less than my hundred millions digit. My hundred millions digit is 1 less than my thousands digit, 8 more than my millions digit, twice my ten thousands digit, and 4 times my hundred thousands digit. My digits in the ones ...
*September 6, 2011 by TULAN*

**Algebra 2**

I need help with this problem because I do not have a graphing calculator. Explain how you would solve this equation using your graphing calculator in five steps then give the solution. 2x- 3y=8 5x+ 4y= 11 Also how do you determine how many solutions a system of equations has ...
*October 22, 2007 by Christian*

**pre-algebra**

Mara ordered 5 bags of seed for $7.00 each and 3 wildflower seed kits for $9.00 each.She also paid a $13 shipping fee.Which expression shows the total cost? What is the solution of 5(n+m)when n=3 and m=6? Which inequality symbol makes the statement true? 11-(-2)_____-6-12 Mara...
*March 7, 2007 by Ricky*

**precalculus**

write each expression as the sine, cosine or tangent of a double angle. then find the exact value of the expression. a. 2sin 22.5 cos 22.5 b. cos^2 105- sin^2 105
*July 6, 2012 by ama*

**math**

0.3 divided by 0.06 simplify the expression 2: 4+3 time 3-5 simplify the expression 3: a jogger on a treadmill is jogging at 5 miles per hour. which of the following is the time it will take him to jog 1 mile
*January 24, 2013 by sadrac*

**Algebra**

Simplify radical terms, including fraction power expressions. Review the expression below and describe how to simplify the expression: 100 Please help, I just do not know how to describe this.
*September 26, 2013 by Tricia*

**algebra**

Find the smallest integer x where the expression srt(x-2)/x^2+x-6 is defined. I factored the denominator (x+3)(x-2) and the smallest value is 2 so the whole expression would have a value of 0. But, that is not the right answer. Thank you!
*October 23, 2014 by Trish Goal*

**precalculus**

Write each expression as sine, cosine, or tangent of an angle. Then find the exact value of the expression tan 50-tan20/1+ tan 50 tan20
*July 1, 2012 by ama*

**math**

Ms.whittier wrote the following on the board:the product of 6 and the sum of 4 and 5.sherry wrote the following expression,6x4+5.did she write the correct expression?why or why not.
*March 16, 2014 by melissa*

**math**

i am a 4 digit number.my thousands didgit is 4 less than my tens digit.my hundreds digit equals the sum of my tens digit and my ones digit.my tens digit is 4 more than my ones digit.my ones digit is 1.what number am i?
*August 10, 2011 by yonny*

**math**

A jar contains six red marbles, four green marbles and five yellow ones. a) determine the number of ways in which any thee marbles can be selected? b) Determine the number of ways to select four marbles where two are red and two are yellow? c) Determine the number of ways in ...
*October 21, 2012 by Carol*

**Biochem**

When trying to purify a protein using column chromatography, what happens to the mass of the protein eluted from the column if you accidentally run it dry? Would it be more or less? Thanks.
*October 18, 2010 by Nancy*

**math **

i have to write seven names for 8. using only numbers less than 10. and use at least three different operations in each name. i have to use parenthesis.
*January 30, 2012 by jared*

**Math ms sue please please please help!!!!!!**

1)a bag contains five red marbles and seven blue marbles. you pull one marble out of the bag and replace it before putting out a second marble. what kind of event is this? independent, dependent, or both? 2) A bag contains 5 marbles. Without looking, you pick a marble with ...
*November 10, 2013 by Math help*

**math - graphs**

what type of graph is best to show the relationship between religion and countries of number or supporters/followers data?
*September 28, 2008 by Anonymous*

**geometry**

find one counterexample to show that each conjecture is false : 1. the sum of two numbers is greater than either number ? help please!!!
*August 17, 2010 by kayla*

**Geometry **

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

**math**

a c-shaped tile (2 in the top row, 1 on the second, 2 on the bottom) can be placed on a number chart so that the sum of the numbers covered is 29. show how this can be done
*June 12, 2012 by nour*

**College Algebra**

solve the polynomial inequality and graph on number line. express in set interval rotation. Show work x^3 - 3x^2 - 9x + 27 < 0
*November 24, 2013 by Jenn*

**Algebra 2**

More About Complex Numbers Find the conjugate of each number. 1.)squ root of 3-7/8i 2.) 2-mi 3.) 6 Please show work I need help
*November 18, 2014 by Alicia*

**math**

read the clues to find each number. it is a 7 digit number. it has a 0. the greatest digit is in the hundered thousands place. the value of the digit 1is i,000,000. the digit 6 stands for 6,000. the value of the digit 5 is 5 ones. the digit 8 has a value greater than 700 but ...
*September 6, 2012 by Winnie*

**maths**

1. If the first and third of three consecutive odd integers are added, the result is 51 less than five times the second integer. Find the third integer. Let the 3 numbers be x, (x + 1) and (x + 2). Then, x + (x + 2) = 5(x + 1) - 51 Solve for x. We want "three consecutive odd ...
*October 12, 2006 by francis*

**Mathematics**

Neeka gave one fifth of her mangoes to her brother, she sold five eighths of the remainder, she was left with 12 mangoes. How many mangoes did she have in the first place? 4/5 M*(3/8)=12 This says she has 3/8 of 4/5 of the original mangos. Or you could do it the number sold: 1...
*January 7, 2007 by Claudia*

**Qualitative analysis**

Computer sales over the past 4 months have been 35, 34, 38, and 44 units. Using a 3-month moving average, forecast sales for the next month. Using a 3-month weighted moving average with the weights 3, 2, and 1, and with the most weight on the most recent data, forecast the ...
*August 5, 2014 by Nancy*

**Algebra**

Maya has some group of stones. Then she throws 6 stones into the lake. Write an expression for the number of stones Maya has now. Tell what the variable represents.
*September 26, 2012 by Charly*

**English Expressions**

1. Curiosity and concentration are important components in memorizing items. If you have a strong desire to learn and memorize, you can memorize it better. 2. Bisarre association is important. If you want to memorize two items together using association, you have to make a ...
*December 11, 2007 by John*

**Math**

BW made c cookies to divide evenly amoung O,TS,SB,and RD and BW himself. Write an algebraic expression that represents the number of cookies each person will receive. I have no clue...sorry those were intitals the problem characters had long names.
*September 20, 2010 by Kelly*

**math (radicals)**

the answer to this expression is -9-4√5 the expression is (2+√5)/(2-√5) i cant figure out how it got there
*September 22, 2011 by cody*

**trig**

Solve the given triginometric equation analytically. Use values of x for 0 less than or equal to x less than 2pi P.S Thanks Reiny for your last post, if you are still online.
*May 1, 2008 by Priya*

**Intro-Physics Help Please**

A spaceship lands on a new planet. the crew decides to measure the speed of sound in the planets atmosphere. taking a tube with a length of 50 cm, they find that one resonant frequency occurs at 2,520 Hz, and the next resonant frequency at 2,940 hz. what is the speed of the ...
*December 7, 2014 by Kayla*

**Math**

Solve 4y-3 less than 7y-4 is the answer less than 2?
*March 21, 2010 by Tricia*

**algebra**

counterexample if x less than or equal 6, then 2x-3 less than 9
*September 19, 2011 by Frank*

**math**

Which X|Y X|Y 1|~1 2|6 Y is 8 less than 8 timesX Y is 8 less than 7 times X Which
*March 6, 2012 by kyle*

**Math**

which fractions are less than 5/6? 2/5 1/12 25/40 10/20 8/9 how do i know which is greater or less?
*October 9, 2012 by angelica*

**Math**

which fractions are less than 5/6? 2/5 1/12 25/40 10/20 8/9 how do i know which is greater or less?
*October 9, 2012 by angelica*

**again**

this time its less than what pecent less than 45 is 25?
*October 24, 2014 by Skywaimasika*

**Algebra 2**

PLEASE HELP WITH THIS-ITS DUE APRIL 5TH, 2011!!! During a past epidemic, the number of infected people increased exponentially with time, or f (t) = ab^t , where f is the number of infected people at time t, in days. Suppose that at the onset of the epidemic (0 days) there are...
*March 27, 2011 by Lindsey*

**Math**

The mystery number's tens digit is less than the ones digit. The tens digit is less than the tenths digit. The tens digit is even. Its ones digit divided by its tens digit is 5. The product of two of the digits is 6 It has two odd digits. One of its digits is the sum of the ...
*September 25, 2012 by Gene*

**7th grade**

USING THE FUNDAMENTAL COUNTING PRICIPLE TO FIND THE TOTAL NUMBER OF OUTCOMES IN EACH SISTUATIONS 1.THE TOTAL NUMBER OF TREES PLANTED IN 5 DAYS BY 30 PEOPLE ,WHO EACH PLANT 3 PLANTS PER DAY 2.TOTAL OF DISGUISES YOU CAN CREATE WITH 2 DIFFERENT CONTACT LENS 3 DIFFERENT WIGS 2 ...
*May 17, 2009 by Anonymous*

**Stats PLEASE HELP!!!**

Webcredible, a UK-based consulting firm specializ- ing in websites, intranets, mobile devices, and applications, conducted a survey of 1,132 mobile phone users between February and April 2009. The survey found that 52% of mo- bile phone users are now using the mobile Internet...
*November 18, 2012 by Tyler*

**m**

Ok here are a few more 1. collect like terms 12r+6s-3r-9s A:9r-3s 2. translate to an algebraic expression The product of 46% and some number A: y=0.46x 3. In 1993, the life expectancy of males in a certain country was 61.3 yrs. In 1999, it was 64.7yrs. Let E represent the life...
*January 8, 2009 by deedra*

**algebra**

Jeffrey is building a rectangular flower garden, width is "w" and length is w + 3. Write a a mathematical expression for the length and an algebraic expression for the area of the garden in binomial descending order.
*March 24, 2010 by Ina Boston*

**Algebra 2 help**

What is the expression in factored form? 2x2 + 16x + 24 What is the expression in factored form? x2 36 What are the solutions of the quadratic equation? x2 9x + 20 = 0 Please I need your help to pass my semester :/ math isn't my strong suit
*November 20, 2012 by Robert*

**algebra**

Essay. Show all work. A gardener wants to create a triangular garden in the shape of a right triangle with the shortest side length x-3y ft. and the middle length side x+6y ft. What ia an algebraic expression for the area of the garden? be sure to multiply this out and express...
*July 19, 2011 by shay*

**math**

How many 5-digit bank security Personal Identification Numbers (PIN) codes can be formed using the characters in the set {0, 2, 4, 6, 8, a, b, c, d, y } with the restrictions below. Note: For purposes of this problem, the PIN number can be "padded" with zeros on the left. So a...
*October 21, 2010 by Anonymous*

**algebra**

The Environmental Protection Agency set a standard of 50 parts per billion of lead in drinking water. A new standard was set that safe water contains less than 15 parts per billion. a) write each of these rates as fractions using positive powers of ten. b) write each rate ...
*August 26, 2013 by Alexandra*

**Math**

Popeyes the parrot sings five different notes, F,C,D, E-flat and G. Write 10 different tunes that he can sing. Each tune must be six notes long and include all five notes Please help me
*May 30, 2013 by Anonymous*

**algebra**

Use the five steps for problem solving to answer the following question. Please show all of your work. The average of two quiz scores is 81. If one quiz score is six more than the other quiz score, what are the two quiz scores?
*October 29, 2010 by franklin*

**English**

What does ATLEAST mean if the number is 360? A.) 360 and less B.) 360 and more
*December 13, 2012 by Deborah*

**statistics**

The data listed below shows the number of hospitals in each state, using the data, complete a frequency table using 8 classes. all the data has been ordered from smallest to largest. 7,8,12,14,14,15,15,15,19,21,23,25,29,30,34,36,36,38,40,40,51,53,55,56,59,61,63,71,73,74,75,76,...
*February 22, 2012 by Justin*

**statistics**

The data listed below shows the number of hospitals in each state, using the data, complete a frequency table using 8 classes. all the data has been ordered from smallest to largest. 7,8,12,14,14,15,15,15,19,21,23,25,29,30,34,36,36,38,40,40,51,53,55,56,59,61,63,71,73,74,75,76,...
*February 22, 2012 by Justin*

**algebra**

how many different four digit numbers can be obtained by using all four of these digits 5,1,1,5 show work please
*September 6, 2012 by ben*

**math**

Rationalize the denominator using the conjugate. 1/1-√7+√5 please show all the steps and explain it i dont get it
*September 23, 2014 by sunny*

**MATH ASAP!!**

Rationalize the denominator using the conjugate. 1/1-√7+√5 please show all the steps and explain it
*September 23, 2014 by sunny*

**Elem. Ed.**

A child is waving a wet paint brush in the air, the teacher should: 1. tolerate the behavior as an expression of childhood exuberance. 2. remind the child of the rules in the art center. 3. use this situation as an opportunity to teach splatter painting. 4. consider this ...
*April 9, 2007 by Keisha*

**math,help**

how can i factor this out completly x^4+x^3-12 i know that4*-3=-12 but how can i get that middle term x^2*x^2=x^4 first you cannot take out any GCF. so if you decide to use grouping, you can create an equivalent problem: x^4 + x^3 - 6 - 6 then by using grouping (the x-terms ...
*April 20, 2007 by jasmine20*

**Math**

When studying integers, zero is _________. Select one: a. a positive b. neither a positive nor a negative. c. a negative Question 3 On a number line the numbers to the right are _________ numbers to the left. Select one: a. equal to b. great than c. less than Question 4 -4 ...
*April 13, 2013 by paragonnova*

**algebra**

Will someone check my work here and let me know if I am right. Thanks. Evaluate x+y/7 for x=44 and y=12 My answer is x+y/7=8 2. Translate to an algebraic expression. The product of 42% and some number. The translation is .42x=y 3. Use < or> to make the statment true. my ...
*August 3, 2011 by babs*

**math **

There are 24 electronic games in each case of electronic games. Find the number of electronic games in 15,000 cases and express your answer using a number multiplied by the power of ten . How do I get the answer for this problem?
*August 22, 2013 by haylie butler *

**English expression**

'Glad to meet you.' is expressed as 'Nice to meet you.' ------------------------- Is the expression above grammatical? Do I have to use 'as' after 'expressed'?
*March 13, 2008 by John*

**Algebra - how do you do this**

(-7yt)/(3x)=?/(18xyt) Building up the denominator Build each rational expression into an equivalent rational expression with the indicated denominator.
*March 1, 2009 by jackie*

**ALGEBRA**

How can I find tHe equivalent expression of -(92u+86x-44). I thought about changing the whole expression but it did not work ex: -92u-86x+44
*December 10, 2009 by Learner*

**algebra 1**

write an algebraic expression that could be used to represent the perimeter of the triangle below. write the expression in simplest form. triangle 3x+1 3-x 2x+4 A: 6x+2 B: 5x-8 C: 4x+8 D: 6x-2
*March 28, 2013 by Anonymous*

**maths**

The cost of a taxi is $1.80 plus $10 at eight of a mile .write an expression for the nth mile of a taxi ride.evaluate the expression for 4.5 miles.
*August 14, 2014 by adiba*

**Math**

A number has four digits. the sum of the first and last digits is twice the second digit. The second digit is 2 less than the third digit. The last digit is twice the first. Some of the digits are alike. what is the number??
*February 24, 2009 by Kris*

**algebra**

your local rollerblade rink will rent you blades for $14.00 for 3 hours or $29.00 for 8 hours. Asume the price increase is constant depending on the number of hours the blades are rented. Find the expression
*February 19, 2008 by logan*

**English**

1. It is only five minutes' walk. (What does 'it' mean?) 2. The bakery is five minutes' walk. (Is it correct?)
*April 26, 2009 by John*

**Maths**

If the average mass of five birds is 2kg 500g, what is the total mass of the five birds?
*May 16, 2011 by Shakillia*

**science**

Lab 1.1 Can somebody please, please help me with this lab?! I know it requires sketching and modeling which only i can do , but please, any help will be appreciated. I find these labs so hard to do, but my teacher said there's no alternative assignment and I HAVE to do them. ...
*October 23, 2011 by JAY*

**science**

Lab 1.1 Can somebody please, please help me with this lab?! I know it requires sketching and modeling which only i can do , but please, any help will be appreciated. I find these labs so hard to do, but my teacher said there's no alternative assignment and I HAVE to do them. ...
*October 23, 2011 by JAY*

**Parametric equations/Trigonometry - Lattice points**

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...
*December 10, 2013 by Sam*

**Algebra**

Solve x^2-10x+22=0 by using the quadratic formula. After I substituted in the values for A, B, and C, and broke it down I got 10 plus or minus 2 times the square root of three/2. How do you break this down further? I know ten can be divided by 2 to get five, and 2/2 is 1, but ...
*October 10, 2009 by Corinna*

**Trigonometry**

Usa a right triangle to write each expression as an algebraic expression. Assume the referenced angle is theta, and x is positive and in the domain of the given inverse trig. function. Label the triangle. 1. sec^sq(tan^-1x) 2. sin(arccot x/(sqrt)1-x^2)
*May 12, 2010 by David M.*

**Chemistry**

At 22 C an excess amount of a generic metal hydroxide M(OH)2, is mixed with pure water. The resulting equilibrium solution has a pH of 10.56. What is the Ksp of the compound at 22 C? I have found my [OH-] concentration (3.63x10^-4) but I'm not sure I'm setting up my ICE ...
*April 1, 2012 by Miaow*

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