Wednesday

May 4, 2016
Total # Posts: 680

**math**

Navigation. The current in a typical Mississippi River shipping route flows at a rate of 4 mph. In order for a barge to travel 24 mi upriver and then return in a total of 5 hr, approximately how fast must the barge be able to travel in still water?Solve by factoring: 9t2 + 3t= 0
*May 3, 2011*

**math**

Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this.2x + 2y = 202x – 2y = 4
*May 2, 2011*

**math**

Use polynomial long division to divide -4x3 + 24x2 – 24x + 4 by x2 – 5x + 1
*May 2, 2011*

**math**

Multiply 3x + 3 by -4x2 + 4x – 2 (Points : 20)
*May 2, 2011*

**math**

Joe has a collection of nickels and dimes that is worth $8.55. If the number of dimes was tripled and the number of nickels was decreased by 2, the value of the coins would be $23.45. How many nickels and dimes does he have?
*May 2, 2011*

**math**

Given the quadratic function f(x) = x2 – 18x + 81, find a value of x such that f(x) = 16.
*May 2, 2011*

**math**

Use polynomial long division to divide -4x^3 + 24x^2 – 24x + 4 by x^2 – 5x + 1
*May 2, 2011*

**math**

use the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this 3x + 24y = 24s,27x – 15y = -15 .
*May 2, 2011*

**math**

. Use the discriminant to determine whether the following equations have solutions that are: two different rational solutions; two different irrational solutions; exactly one rational solution; or two different imaginary solutions. 8x2 + 2x + 4 = 0 Two different irrational ...
*May 2, 2011*

**math**

Use the discriminant to determine whether the following equations have solutions that are: two different rational solutions; two different irrational solutions; exactly one rational solution; or two different imaginary solutions.8x2 + 2x + 4 = 0
*May 2, 2011*

**math**

If a stone is tossed from the top of a 250 meter building, the height of the stone as a function of time is given by h(t) = -9.8t2 – 10t + 250, where t is in seconds, and height is in meters. After how many seconds will the stone hit the ground? Round to the nearest ...
*May 2, 2011*

**math**

10a^2 + 25a - 15 factor out the GCF.
*May 1, 2011*

**math**

Completely factor the expression 36x3 – 96x2y + 64xy2
*May 1, 2011*

**math**

Completely factor the expression 20x2 – 45y2
*May 1, 2011*

**algebra**

A 10-ft diagonal brace on a bridge connects a support of the center of the bridge to a side support on the bridge. The horizontal distance that it spans is 2 ft longer that the height that it reaches on the side of the bridge. Find the horizontal and vertical distances spanned...
*May 1, 2011*

**math**

Completely factor the following expression: 16y2 – 25z2
*May 1, 2011*

**education**

Thank you Ms.Sue!
*April 28, 2011*

**education**

can someone please give an example question that can be used to interview a librarian about the issues/trends in children's literature.
*April 28, 2011*

**math**

81x^2 - 126xy + 49y^2 factoc into a product of bionomials
*April 28, 2011*

**algebra**

The area of a rectangular athletic field is represented by the expression 9y^2 - 25z^2 square meters. Write an algebraic expression to represent one possible set of dimensions (in the sense “length times width”) of the athletic field. Include correct units with your ...
*April 28, 2011*

**Math**

Naomi studied each of the letters below with a flat mirror. abcdefghijklmnopqrstuvwxyz she then constructed this chart characteristic 1 charac 2 char 1&2 bcdehiox hiox what letters go in the second column
*April 26, 2011*

**Trigonometry**

If sin A=3/5 and cosB = 24/25 and angle A and angle B are both in quandrant 1. What is sthe exact value of cos (A-B)?
*April 25, 2011*

**calculus**

verify the following identity cos(x+y) + cos(x-y)=2cosxcosy
*April 22, 2011*

**english- macbeth**

hey.. did you take a test in act 2 .... if yes .. could you plz give me the questions if you can.
*March 29, 2011*

**english- macbeth**

thanks alot, that really helped :)
*March 29, 2011*

**english- macbeth**

well i have a couple of questions about the tragedy of macbeth that i have no clue how to answer so if you could lend me some help i'll appriciate it. it's act 2: Q1) Though Macbeth encounters no actual opposition until long after Duncan is murdered, Shakespeare must ...
*March 29, 2011*

**history**

How and why did the American economy soar from 1950 to 1970?
*February 21, 2011*

**history**

How did the Vietnam War, and the domestic opposition to it, come to dominate American politics in the 1960s?
*February 21, 2011*

**history**

is it the island of sicily
*February 17, 2011*

**history**

the island that became Rome northwestern frontier?
*February 17, 2011*

**English**

I need a consonance for the poem miniver cheevy by E. A. Robinson.
*February 16, 2011*

**physics-ASAP**

a crate on a frictionaless plank inclined at angle theta with respect to the horizontal. Which of the follwing relationships is true? (assume that the x-axis is parallel to the surface of the incline) a)Fy = Fg b)Fx=0 c)Fy=Fx d)none of the above *my answer would be c but i ...
*February 13, 2011*

**chemistry**

Suppose that a compound Z had a partition coefficient of 8 in ether-water. If 10g of z was dissolved in 100mL of water, and if the water solution was extracted with two 100 mL portions of ether, answer the following questions a) what is the total amount of z contained in 200mL...
*February 13, 2011*

**grammar**

extravagantly & high very & solitary
*February 10, 2011*

**grammar**

extravagantly & high very & solitary
*February 10, 2011*

**grammar**

underline the adverb and circle the word or phrase it tells more about. These furs brought extravagantly high prices. Theirs was a very solitary existence.
*February 10, 2011*

**algebra**

8% of(n+2)equals 12. What is n?
*January 26, 2011*

**science**

A _____ of heat is a place from which the heat comes.
*January 25, 2011*

**biology**

I am posting this question in Biology instead of Algebra even though it is a question from my Algebra class. Thanks. A male bee has only one parent(a mother) and a female bee has two parents (a mother and a father).Assuming all ancestors are distinct, how many great, great, ...
*January 23, 2011*

**algebra**

Find an integer M such that M x 2 to the third power x 3 to the 7th power = 6 to the 7th power.
*January 23, 2011*

**math===pls. help==**

For numbers less than 40, list each pair of numbers that has a greatest common factor (GCF) of 12.
*January 21, 2011*

**English**

Hey... Can you please give me some questions on William Shakespeare sonnet 29, 30, and 116. I tried to look for MCQ to practice some more, but i didn't find so please if you can help me i'll appriciate it thanks
*January 20, 2011*

**health care studies**

micro perspective vs marco perspective which has the greatest influencce on a person health?
*January 17, 2011*

**5th math**

n - 2/3 = 3/4 find the LCD, which is 12 n - 8/12 = 9/12 n = 9/12 + 8/12 n = ? find ? and reduce if possible
*January 7, 2011*

**trig-reply to Reiny**

sorry for the late thank you!! I lost the post and couldn't find it. doubt you will see this, and I didn't want to clog up the page with a new post. you're the greatest!!
*January 3, 2011*

**trig-reply to Reiny**

Continued, also this isn't an official assignment. I'm teaching myself calculus. I just love math. I took cal 30 thirty ago but don't remember much. I use Wolframe Alpha to check my answers. here's the web paste without the beg. address part, you'll have to...
*January 3, 2011*

**trig-reply to Reiny**

It's actually the end of an integration problem from a college calc text I have from 1971. The problem involved Weierstrass Substitution. The part I posted was after converting from the u-substition to an answer in terms of x. The orig prob. is integrate (cos x )/(3 cos^2 ...
*January 3, 2011*

**trig-reply to Reiny**

I'm new to this. I didn't know you could reply to the original post? (testing with this reply), otherwise I would not have kept re-posting as a 'new' question. I just noticed some replies as I was reading other questions. again, my apologies. I feel like I ...
*January 3, 2011*

**trig-reply to Reiny**

RE: (- sin (x/2) /( 2 sin (x/2) + cos (x/2)) is an alternate representation for, 1 / ( 4 tan (x/2) + 2 ) Thanks for your help, sorry I posted 3 times, I thought you didn't understand what I needed. I really do appreciate your time spent. just for your FYI, if you are ...
*January 3, 2011*

**trig**

Third time is the charm? I'll try again. Could someone show me how, (- sin (x/2) /( 2 sin (x/2) + cos (x/2)) is an alternate representation for, 1 / ( 4 tan (x/2) + 2 ) TIA Carol This doesn't require the solving of any equations. For example, ( same concept for what I ...
*January 3, 2011*

**trig**

I asked below but I guess it was not understood what I was asking. I'll try again. Could someone show me how, (- sin (x/2) /( 2 sin (x/2) + cos (x/2)) is an alternate representation for, 1 / ( 4 tan (x/2) + 2 ) TIA Carol I know the half-angle formulas are used but I cannot...
*January 3, 2011*

**Trig**

Could someone please show me how 1 / ( 4 tan (x/2) + 2 ) is converted to: (- sin (x/2) /( 2 sin (x/2) + cos (x/2)) TIA Carol
*January 3, 2011*

**Calculus**

Can someone give a detailed solution to this integration problem? âˆ« dx /(3(1 - x^2 ) - (5 + 4x)âˆš(1 - x^2)) this symbol âˆš is square root The answer is ( I need the steps and/or u-substitution used to arrive at this answer...
*December 30, 2010*

**teacher aide work experience**

I need help with this
*December 19, 2010*

**5th grade math**

Tamara says that 15/3=5.Is she correct?Explain how you know?
*December 14, 2010*

**math**

Simplify sin^2x+cos^2x+sec^2x -tan^2x+csc^2x-cot^2x
*December 6, 2010*

**algebra**

how do you figure this equation step by step 4x-3y=11 2x+3y=13
*December 4, 2010*

**PreCal**

Funny how you go on every other post and accuse them of cheating, but yet here you are requiring the answer to one of your math problems!! Ha ha!! Too Funny!!!
*November 22, 2010*

**org chm**

how many grams of KOH are needed to make 590 ml of a solution with a pH of 11.35?
*November 17, 2010*

**physics**

A novice skier, starting from rest, slides down a frictionless 33.0° incline whose vertical height is 127 m. How fast is she going when she reaches the bottom?
*November 16, 2010*

**math**

fran made a rectangle with 36 square tiles.the sum of the length and width is 15.what are the length and width of her rectangle?
*November 4, 2010*

**Physics**

A building superintendent twirls a set of keys in a circle at the end of a cord. If the keys have a centripetal acceleration of 115 m/s2 and the cord has a length of 0.36 m, what is the tangential speed of the keys?
*October 29, 2010*

**math**

I'm in 5th grade pls. help. Amanda has a collection of X, Y and Z. Every X is a Y. One half the Z's are Y's. There are 3 times as many Y's as X's. Amanda has 50 Z's and 40 X's. No Z is an X. How many Y's does Amanda have that are neither X'...
*October 25, 2010*

**math**

pls. help
*October 24, 2010*

**math**

I'm in 5th grade pls. help. Amanda has a collection of X, Y and Z. Every X is a Y. One half the Z's are Y's. There are 3 times as many Y's as X's. Amanda has 50 Z's and 40 X's. No Z is an X. How many Y's does Amanda have that are neither X's...
*October 24, 2010*

**Math**

thats the question...draw a picture or diagram to explain the square number.
*October 24, 2010*

**Math**

this pattern represents the square numbers 1,4,9,16,25,36 diagram to explain square numbers. pls. help
*October 24, 2010*

**4th grade**

what is correct order smallest to largest 0.6,0.06,0.43,0.9
*October 21, 2010*

**math**

K/1=-45 K=?
*October 12, 2010*

**math**

-28/1=A A=?
*October 12, 2010*

**math**

solving problems and crimes..can you solve the following cases? 1) what letter belongs to in the empty box? O T T F F S S E 2) write a sentence to describe this pattern.. 3,8,13,18,23,28,30,31,32 please help i don't understand.
*October 12, 2010*

**Algebra**

s1 = 18 + .4m, s2=11.2 + .54m when is one spring 10 cm longer than the other one? (s = cm long)
*September 27, 2010*

**physics**

A car is driven 165 km west and then 25 km southwest. What is the displacement of the car from the point of origin (magnitude and direction)?
*September 26, 2010*

**math problem**

You are going to drive 480 miles today at an average speed of 60 miles per hour. Thus you are going to drive for a total of 8 hours. The diameter of the wheels on your car (including tires) is 25 inches. Thus each wheel is going to turn a total of ___ times today. I have tried...
*September 23, 2010*

**physics**

100 m/s
*September 21, 2010*

**Precalculus/Algebra 3**

If P(x)= -4x^3+5x-1, use synthetic substitution to find each of the following. 2. P(1/3) 3. P(i)
*September 19, 2010*

**Precalculus/Algebra 3**

One root of 3x^3-5x^2+2= 0 is 2. Find the remaining roots
*September 19, 2010*

**Health**

Peritoneal dialysis doesn't need a dialyzer to work, whereas hemodialysis does.
*September 8, 2010*

**Health**

when comparing hemodialysis and peritoneal dialysis,it can be said that
*September 8, 2010*

**math 7th**

3 x 48 inch = 144 inch each will get 144/6 inches of licorice => 24 inch.
*September 7, 2010*

**math %**

Hint: 1742*30/100
*September 4, 2010*

**math**

x^3 +8 => x^3 + 2^3 now apply the formula of a^3 + B^3
*August 12, 2010*

**math**

Let's consider x = C's age => M's age = 3x + 10 therefore, (3x + 10)- x = 35 => 3x + 10 = 35 + x => 2x = 35 -10 => x = 25/2 => Molly's age = 12 ½ Now, calculate Chase's age.
*August 3, 2010*

**pharmacy**

what patient issues might arise when working in an institutional pharmacy setting?
*August 1, 2010*

**accounting**

Thanks.
*July 29, 2010*

**accounting**

Can someone give me the site where I can do practice problems for Managerial Accounting. My instructor bases his exam on the CPA, the homework is easy. He said that he wants us to think outside the box. I need practice. All were word problems.
*July 29, 2010*

**math**

1. x=18-6y 2y-6=x therefore, 18-6y = 2y-6 18+6=2y+6y 24=8y y=3 x= 18-6y 18-(6x3) x=0 Do the rest by your own.
*July 25, 2010*

**math**

You can submit your question at tutoteddy to get the answer.
*July 22, 2010*

**Algebra**

You can submit your question at tutoteddy to get the answer
*July 21, 2010*

**math.please help!**

Submit your question at tutoteddy and get the answer.
*July 19, 2010*

**math**

Submit your question at tutoteddy and get the answer. They charge only 99 cents for every three math problem. However, I think it's better to do your homework by your own and so you have to learn the subject properly. You can take help of the above-mentioned site. Their ...
*July 18, 2010*

**economics**

Numerous times is history, the courts have issued consent decrees requiring large companies to break up into smaller competing companies for violating the antitrust laws, The two best known examples are American telephone and telegraph (AT&T) in the 1980s and Microsoft 20 ...
*July 13, 2010*

**Algebra**

Submit your question at tutoteddy and get the answer. They charge only 99 cents for every three math problem.
*July 13, 2010*

**math-due tonight please help**

Submit your question at tutoteddy and get the answer. They charge only 99 cents for every three math problem.
*July 9, 2010*

**math-algebra please help**

Submit your question at tutoteddy and get the answer. They charge only 99 cents for every three math problem.
*July 6, 2010*

**algebra**

Is (0,3) a solution of9x+8y=6
*June 16, 2010*

**4th Grade Math**

Re: Factor Numbers My son has to write at least two ways to break down numbers - I know he did not learn this in school but I would like to help him at home, please help me I have not done this work in over 30 years. He has to break down the numbers 56, 12, 42, 36, 24 and 60. ...
*June 9, 2010*

**4th Grade Math**

Re: Factor Numbers My son has to write at least two ways to break down numbers - I know he did not learn this in school but I would like to help him at home, please help me I have not done this work in over 30 years. He has to break down the numbers 56, 12, 42, 36, 24 and 60. ...
*June 9, 2010*

**math**

how do I solve: 1.1(3x+5) is greater than or equals 1.6-(x+3)
*May 30, 2010*

**math**

x^2-6x-7=0 Completing the square need help
*May 28, 2010*