# Posts by Urgent

Total # Posts: 59

**Math**

Three workers can do a job in 28 hours. How many more workers are needed to do this job in 12 hours?

*March 15, 2017*

**Math**

It took Jen, who biked at a speed of 12 mph, 20 minutes to get home. What is Jim’s speed, if it took him only 15 minutes to bike that distance?

*March 15, 2017*

**Math**

The area of a trapezoid is 18sq. ft and the sum of its bases is 6 ft. Find the area of a square whose side is equal to the height of the trapezoid.

*March 14, 2017*

**SS**

I got it right, It was B.

*November 7, 2016*

**SS**

Saw nothing about a school...

*November 7, 2016*

**SS**

Can't be A since he died in the 1500s.

*November 7, 2016*

**SS**

So is it D?

*November 7, 2016*

**SS**

I'm in a huge hurry, so I guessed. I just need help with this. I can't find anything in that text.

*November 7, 2016*

**SS**

I CANT FIND IT :((((((

*November 7, 2016*

**SS**

which of the following statements true about king gelawdewos capital?? It was built in the 1700s It was a palace decorated with gold and preicous stones** It was where a prestigous school was built It was home to many cattle herders.

*November 7, 2016*

**Algebra 2**

X^2-8x=-14

*November 2, 2016*

**MATH**

IS it C?

*November 2, 2016*

**MATH**

13. write the ratio as a fraction in simplest form. 30:48 A.1/6 B.5/8 C.30/48 D.8/5 14. Write the ratio as a fraction in simplest form. 38 to 20 A. 38/20 B.1/9 C.19/10 D.10/19 15. write the ratio as a fraction in simplest form. 6 out of 9 A.1/3 B.3/2 C.2/3 D.3 My answers 13.B ...

*November 2, 2016*

**maths need help**

if a^x=(a/k)^y=k^m and a is not equal to 1 then show that 1/x-1/y=1/m show me work plz

*October 2, 2016*

**math**

lol no this was no help :)

*September 27, 2016*

**math**

At a concession stand seven hot dogs and four hamburgers cost 14.00 dollars. Four hot dogs and seven hamburgers cost 16.25. find the cost of one hot dog and one hamburger. Timed please hurry.

*September 27, 2016*

**Chemistry**

7. For the equilibrium system below, which of the following would increase the concentration of 𝐻2𝑂(𝑔)? 𝐶(𝑠) + 𝐻2𝑂(𝑔) + 131𝑘𝐽 ↔ 𝐶𝑂(𝑔) + 𝐻2(𝑔) a. ...

*June 4, 2016*

**physics**

A ball is kicked with an initial velocity of 16.1 m/s in the horizontal direction and 14.4 m/s in the vertical direction. What maximum height is attained by the ball?

*September 18, 2015*

**Chemistry**

What is the concentration (M) of K+ in a solution made by mixing 25.0 mL of 0.100 M KCl with 50.0 mL of 0.0500 M KCl? Can you please explain how to solve this problem. I thought to do 25*.1+50*.05=5 But that seems wrong. What should I try to do?

*September 16, 2015*

**Physics 2**

I get 4 degrees, let me know what you guys get

*August 17, 2015*

**Physics 2**

If water at 0 oC is heated, it actually decreases in volume until it reaches Select one: a. 1 oC. b. 2 oC. c. 3 oC. d. 4 oC. e. 5 oC.

*August 17, 2015*

**Algebra**

How did you do 8/(u-4) which turned in to 8(u-4)

*January 14, 2014*

**Algebra**

Briana can row 4 miles per hour is still water. It takes as long to row 8 miles upstream as 24 miles downstream. How fast is the current?

*January 14, 2014*

**English**

That is right

*January 12, 2014*

**Urgent**

3) List 3 strategies to help escape riding in a vehicle with an impaired driver.

*October 7, 2013*

**Algebra 1**

Or is could be h/3+p/3+8=k

*October 7, 2013*

**physics(*URGENT*)**

or could you show me your full working?

*October 6, 2013*

**physics(*URGENT*)**

for y(t) do you use the value in the x or y direction?

*October 6, 2013*

**Math Calculus**

The function f is given by the formula f(x)=6x^3+17x^2+4x+21/x+3 when x<–3 and by the formula f(x)=2x^2–4x+a What value must be chosen for a in order to make this function continuous at -3?

*May 3, 2013*

**Fluid Mechanics**

Calculate the pressure at a point 5 m below the free water surface in a liquid that has a variable density given by equation o =(350+Ay)kg/m3, where A = 8 kg/m4 and y is the distance in meters measured from the free surface.

*September 9, 2012*

**Chemistry**

A solution contains 0.400 g of NaOH in 20.0 mL of solution. What is its molarity

*April 24, 2012*

**chemistry!**

The standard molar heat of vaporization for water is 40.79 kJ/mol. How much energy would be required to vaporize 4.00 mol of water? Answer in units of kJ

*March 8, 2012*

**chemistry**

2.852

*March 8, 2012*

**chemistry**

13(36.461)=473.993 473.993/.125=3791.944

*March 8, 2012*

**sociology**

According to Max Weber, rational motives are easy to understand and predict because ends and means can be calculated and behavior changed on the basis of experience. True False I think false..maybe...help

*September 23, 2011*

**sociology**

True.. I guess.

*September 23, 2011*

**sociology**

All deviance is a crime but not all crime is deviance. Question 6 answers a)True b)False

*September 23, 2011*

**physics**

The density of a sample of air is 1.235 kg/m3, and the bulk modulus is 1.42 · 105 N/m2. a) Find the speed of sound in the air sample. b) Find the temperature of the air sample. Give answer in °C. Do not enter unit. Yanlýþ. Denemeler

*April 1, 2011*

**URGENT**

URGENT

*October 28, 2010*

**URGENT**

URGENT

*October 28, 2010*

**Physics**

The problem contains graphics that I don't know how to show other than in an image format: h t t p : / / b i t . l y / c D H P V M h t t p : / / b i t . l y / 9 m b y C R

*September 8, 2010*

**Physics**

What does d= ? (Not sure what to take the derivative of)

*September 7, 2010*

**Physics**

And I still haven't gotten an answer for my previous question here: h t t p : / / b i t . l y / d g 6 o O F

*September 7, 2010*

**Physics**

You do have to solve for the take-off speed, but I have the answers. I just don't know the procedure for solving the problem.

*September 7, 2010*

**Physics**

I just said the takeoff speed is 9.0 m/s.

*September 7, 2010*

**Physics**

ANSWER: Vo = 9.0 m/s She lands 0.21 m past the opposite bank I'm not sure how to get those numbers, though.

*September 7, 2010*

**Physics**

No, the initial velocity has to be solved for.

*September 7, 2010*

**apchem**

what is the density of vinegar? thanks

*March 16, 2010*

**apche,m**

what is the density of vinegar? thanks

*March 16, 2010*

**Economics**

Hi, Please I researched so badly, I need help to find information about Cybernomics issues and solutions. Please can you help me. Give me a site I can go to that will have information concerning Cybernomics. Please Thank You.

*June 9, 2009*

**9th grade, Socials**

what is a colonie?

*January 18, 2009*

**Physics Questions!**

An interference pattern is set up by two point sources of the same frequency, vibrating in phase with one another. A point on the second nodal line is 50.0 cm from one source and 59 cm from the other. The speed of the waves is 35 cm/s. Calculate the frequency of the sources. I...

*December 15, 2007*

**english**

hmhm you could say an "oasis of serenity amidst the bustling city." Serenity means a peaceful or calm state. As to your second question, I am not sure.

*December 11, 2007*

**Bobpursley for this question please, physics**

I think I figured it out, you just switch the N and the mlambda, correct?

*December 11, 2007*

**Bobpursley for this question please, physics**

I don't understand though why you can make w/mlambda I thought it was the otherway around? (in regards to this w/N sinTheta= m lambda N= w/(m lambda) * sinTheta N= w/(m lambda) * x/L

*December 11, 2007*

**une lab de physics**

Hello, we are doing a lab dealing with diffraction gratings. The problem I have is that we are supposed to find the number of slits, N, based on gathered information. I have x, L, d, m, and w, just not N, which is what I am trying to find. I also have the wavelength. Is this ...

*December 11, 2007*

**Physics Lab**

yes! It works I got an answer or 35.2 so there were approximately 35 slits! But wow, thanks soo much! This really saved me! I appreciate this!

*December 11, 2007*

**CALCULUS**

what is the derivative of ln(x-1)? If you are studying the calculus of logarithms your question surprises me, since that is one of the most basic ones in that topic. in general if y = ln("anything") then y' = 1/"anything" * derivative of "anything&...

*May 6, 2007*

**Calc**

I have a test soon.. and I really need to know how to do this problem.. please help!!! lim as x-->0 sin^2(x)/tan(x^2) the answer is 1, but I have no clue how to get that! Use series expansions. Look up Taylor expansion on google and study that topic first. Using series ...

*March 30, 2007*

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