# Posts by Bob

Total # Posts: 3,279

**Math**

What is the value of 1000^2/(252^2/248^2) How do you do it faster

*January 3, 2014*

**Math**

If x≠0, x/2=y^2 and x/4=4y, then what is the x

*January 3, 2014*

**Math**

1. For all non-zero numbers x and y such that x= 1/y, what is the value of ( x- 1/x)(y+ 1/y)

*January 3, 2014*

**Math**

The ratio of w to x is 4:3, of y to z is 3:2 and of z to x is 1:6. What is the ratio of w to y?

*January 1, 2014*

**Math**

If x : y = 3 : 4 and x : (y + z) = 2 : 5, what is the ratio of x : z?

*January 1, 2014*

**Math**

if company 2 lease/maintenance totals $125,000 for the year and company 1 spends 27% for lease/maintenance, how much is company 1 paying for their lease/maintenance?

*January 1, 2014*

**MMath**

21.45

*January 1, 2014*

**MMath**

Three servers work a party of 30 guests with a meal total of $660.00. Restaurant policy adds a 15% gratuity to the bill for parties of 8 or more. If bartenders receive 15% of the gratuity, bussers receive 20%, and the rest goes to the servers, how much does each server get?

*January 1, 2014*

**statistics**

Solve the problem. Round to the nearest tenth unless indicated otherwise. The amount of rainfall in January in a certain city is normally distributed with a mean of 4.3 inches and a standard deviation of 0.3 inches. Find the value of the quartile .

*December 18, 2013*

**Math help ms sue.**

Dude. This website is meant for a teacher to help you review your homework. Ms. Sue is not obligated to do your homework for you.

*December 16, 2013*

**Simplifying trig expression**

sin(x+90) = ? cos(x+90) = ? Would the first equal like -sin(x)? Would the second equal uh -cos(x)? I'm not quite sure :/

*December 16, 2013*

**SCIENCE? HELP!**

Number one is 4

*December 16, 2013*

**LCM of two numbers?**

the lcm of pi/2 and pi/3 is 6?

*December 15, 2013*

**LCM of two numbers?**

lcm of two numbers pi/3 pi/2 How do I do it? Would it be pi or pi/6? Thanks

*December 15, 2013*

**science**

the honeyguide bird leading the honey badger to the bees hive, both eat meat what is the symbiosis for this

*December 12, 2013*

**Chemistry**

How many grams of K2Cr2O7 (Potassium dichromate) must be used to make 250 ml of a0.125 M solution?

*December 8, 2013*

**science(please check answers)**

Thanks I really needed this im failing.

*December 4, 2013*

**business law**

*The below is a scenario in which I have to make an IRAC for (not sure if you know what that is) but read the scenario and see if "Faye" is able to leave legally without ramifications. You must also list the legal rules that apply to this scenario..(for example, if ...

*December 2, 2013*

**physics**

A certain elevator car has mass 2200 kg and is lifted by cables driven by an electric motor. The efficiency of the lift system (motor, pulleys, cable, etc.) is 67.0%. As the elevator car moves at constant speed of 3.0 m/s it encounters 220N of friction coming from its tracks. ...

*December 1, 2013*

**physics**

A steel section of the Alaskan pipeline had a length of 65.1 m and a temperature of 15.8 °C when it was installed. What is its change in length when the temperature drops to a frigid -31.2 °C?

*November 30, 2013*

**poetry**

Could you help me answer these questions using William Cullen Bryant's poem, "The Prairies?" Thank you so much! I've attached a link to the poem. The poem text is widely available online if you just google the title/author Here are the questions I am ...

*November 27, 2013*

**math**

what would be an example of a parameter? i'm confused. i'm given this problem: How much time do undergraduate students at GMU spend each day reading and sending email? A survey was conducted by a graduate student asking students in the Johnson Center the above question...

*November 24, 2013*

**Trigonometry**

Hey

*November 24, 2013*

**math**

ITS 40 TONNES

*November 22, 2013*

**Physics HELP!!**

A gyroscope consists of a uniform disc of mass radius M= 1 kg and radius R= 0.3 m . The disc spins with an angular speed ω= 200 rad⋅s-1 as shown in the figure below. The gyroscope precesses, with its axle at an angle 30∘ below the horizontal (see figure). The ...

*November 20, 2013*

**Physics**

A woman on a bridge 75.0m high sees a raft floating at a constant speed on the river below. She drops a stone from rest in an attempt to hit the raft. The stone is released when the raft has 7.00m more to travel before passing under the bridge. The stone hits the water 4.00m ...

*November 19, 2013*

**Algebra**

poop

*November 17, 2013*

**math**

Sheila is going to divide a 36-inch piece of ribbon into 5 equal pieces.She says each piece will be 7 inches long.whats the error?

*November 12, 2013*

**Physics**

A coin rests 18.0 cm from the center of a turntable. The coefficient of static friction between the coin and turntable surface is 0.390. The turntable starts from rest at t = 0 and rotates with a constant angular acceleration of 0.850 rad/s2. (b) At what angular speed (ω...

*November 12, 2013*

**math**

83383

*November 10, 2013*

**Physics**

A ball is thrown horizontally from the top of a building 45.2 m high. The ball strikes the ground at a point 78.9 m from the base of the building. The acceleration of gravity is 9.8 m/s 2 . Find the time the ball is in motion, initial velocity, and x and y components

*November 10, 2013*

**Physics**

Tom the cat is chasing Jerry the mouse across a table surface 2.4 m oﬀ the ﬂoor. Jerry steps out of the way at the last second, and Tom slides oﬀ the edge of the table at a speed of 4.8 m/s. Where will Tom strike the ﬂoor? The acceleration of ...

*November 10, 2013*

**science**

Well since one says gravity and the other says intertia... They both have a good reason to be the answer so I would say both intertia and gravity

*November 10, 2013*

**science**

inertia

*November 10, 2013*

**C++**

True or false: A function call statement transfers control of the program to the last statement in the body of a function.

*November 8, 2013*

**physics**

Net force F causes mass m1 to accelerate at rate a. A net force of 3F causes mass m2 to accelerate at rate 2a. What is the ratio of mass m1 to mass m2?

*November 5, 2013*

**music history**

I need an example thesis for a research paper. It can be about pretty much any music as long as its before 1750. (pretty much everything from Ancient Music - The Baroque period). Thanks in advance!

*November 4, 2013*

**algebra**

How do i solve an equation when there is a variable on both side of = and the two constants are equal x-16 = 16-2x 7-2x = 2x-7 The answer in both cases seems to = 0

*October 30, 2013*

**science**

A hockey puck sliding on a frozen lake comes to rest after traveling 272 m. If its initial velocity is 3 m/s, what is its acceleration (assumed constant)? Answer in units of m/s2

*October 29, 2013*

**MATH _ RE-POST PLEASE HELP**

I dont' know

*October 27, 2013*

**Computer Programming using python**

def test(): index = 1 prev_index = 0 count = 0 global largest largest = '' test = s[prev_index] while count < len(s): if ord(s[index]) > ord(s[prev_index]): test += s[index] index += 1 prev_index += 1 elif ord(s[index]) == ord(s[prev_index]): test += s[index] ...

*October 24, 2013*

**Chemistry**

When 1.00 kg lead (specific heat = 0.13 J g -1 C -) at 100.0 C is added to a quantity of water at 28.5C, the final temperature of the lead-water mixture is 35.2 C. What is the mass of water present?

*October 21, 2013*

**Chemistry**

How much heat, in kilojoules (kJ), is required to raise the temperature of 2.50kg Hg(l) from -20.0 to -6.0C? Assume a density of 13.6g/ml and a molar heat capacity of 28.0 J mol -1 C -1 for Hg(l). Please helpppppp .... thanks in advance

*October 21, 2013*

**MATH MS.SUE HELP PLEASE!**

idk how to tag so maybe this might tag Ms. Sue here.

*October 18, 2013*

**MATH MS.SUE HELP PLEASE!**

Could somebody help me I don't understand any of this. Could someone show me or tell me how to work the problems? 1. Find the length of the hypotenuse of a right triangle with the legs of 9cm and 12cm A.8 B.21 C.15 D.225 2.The length of a hypotenuse of a right triangle is ...

*October 18, 2013*

**Math - Trigonometry**

Well think about it. The period of cos(x) is 2pi, 114pi = 358.14, so cos(x) repeats 114/2 = 57 times. So the answer is 57*2 = 144, but since cosine is split over y axis on the first period (calculatorsoup dot com/images/trig_plots/graph_cos_pi.gif) we add 1 to 144, and get 145.

*October 15, 2013*

**Math**

Oh, and 10/9 is the same thing as 1 1/9, so you were right.

*October 13, 2013*

**Math**

3^0+3^(-2) = 1 + 1/9 = 9/9 + 1/9 = 10/9 = 1.1111111...

*October 13, 2013*

**science**

what is a catalyst converter

*October 13, 2013*

**Algebra**

Never mind, I got it.

*October 13, 2013*

**Algebra**

Is the Riemann Hypothesis correct? Why or why not? Please show your work.

*October 13, 2013*

**Math**

Find the length of the arc (sector question) Radius=8cm Angle=27

*October 7, 2013*

**math**

Determine the vertex and the axis of symmetry for the function below: y=-4x^2-24x-36

*October 7, 2013*

**math**

I also need to know the answer of this work sheet P.S. Teachers this is a site for students. Please don't be pedantic and go away from the site.

*October 6, 2013*

**math**

A quadrant has an area of 175m2. Find the length of its base

*October 6, 2013*

**Physics**

A rocket moves upward, starting from rest with an acceleration of 28.1 m/s2 for 5.21 s. It runs out of fuel at the end of the 5.21 s, but does not stop. How high does it rise above the ground?

*October 5, 2013*

**Math**

I checked the question again but that is all it wrote

*October 5, 2013*

**Math**

In one revolution a wheel moves forward a distance equal to its circumference. This is because the wheel Always in contact with the floor. 1)A trundle wheel clicks everytime. What is the radius of the wheel

*October 5, 2013*

**Math**

The diameter of a bicycle wheel is 65 cm How many revolutions are needed to make the bike travel 2km

*October 5, 2013*

**Math**

Then would the answer be 43.98???

*October 5, 2013*

**Math**

A running track has 8 lanes each a meter wide.Each"straight" is 100 meters long. The distance around the track for someone running in the middle of the inside lane is 400 meters. What is the distance around the track for someone running in the middle of the outside ...

*October 5, 2013*

**business**

The type of accounting concerned with providing information and analyses to managers within the organization is referred to as

*October 3, 2013*

**Geography (Ms. Sue)**

Idk

*October 3, 2013*

**Anatomy**

Because

*October 3, 2013*

**Math help please**

Thanks, DJ. I got a 100%

*October 2, 2013*

**adv algebra hw**

Let x,y,z be positive real numbers such that: xyz=945 x(y+1)+y(z+1)+z(x+1)=385. What is the minimum possible value of z+y/2+x/4?

*October 1, 2013*

**Astronomy**

This is part of Coursera class final exam (From the Big Bang to Dark Energy by Hitoshi Murayama). I think it's OK to learn about the Higgs via lectures or web searches. But asking for folk to answer the question is cheating.

*October 1, 2013*

**science**

What is a possible hypothesis that could be tested in the Atomic Theory lab?

*September 30, 2013*

**delftx**

For Question 1: 2440 Total PV output = 1000W/m2×18%×10m2=1800W PV module costs = 1800W×€0.8/Wp=€1440. Non-modular costs = €100/m2×10m2=€1000. Total cost = PV module costs + non-modular costs = €2440.

*September 29, 2013*

**chem**

How many grams of NH3 are required to make 52.7g H2O in the following reaction : 4NH3+6NO->5N2+6H2O

*September 28, 2013*

**chem**

Correction!! in the question its **12CO2**

*September 28, 2013*

**chem**

Help a brother out!!! please!!!Nitroglycerin, C3H5N3O9 decomposes to form N2,CO2,H2O, and O2 4(C3H5N3O9)-> 6N2+12O2+10H20+O2 a)How many grams of water would be produced if 75g of nitroglycerin decompose? b)The creation of 3.89 moles of C02 would require how many grams of ...

*September 28, 2013*

**us history**

Compare and contrast the goasl and strategies of the Reconstruction of TWO of the following -President -Lincon -Johnson -Congressional Republicans

*September 26, 2013*

**us history**

Describe the long-term political and economic effects of the Reconstruction and southern reaction on African Americans

*September 26, 2013*

**us history**

Explain whether slavery or representation was the main cause of disunion. You may incorporate two of the following to support your answer -The Missouri Compromise -The Free-Soil Movement -Compromise of 1850 -Kansas-Nebraska Act, 1854 -Bleeding Kansas Dred Scott v. Sandford

*September 26, 2013*

**us history**

Analyze the ways that the Free-Soil movement influenced U.S politics from 1820-1860. Explain the significance of this movement.

*September 26, 2013*

**math**

hello the answer is 8,6,3,3,3,

*September 26, 2013*

**physics**

if you are stuck in the middle of a frictionless frozen lake with only your backpack, how can you get back safely to solid ground?

*September 25, 2013*

**physics**

if you are stuck in the middle of a frictionless frozen lake with only your backpack, how can you get back safely to solid ground?

*September 25, 2013*

**physics**

if you are stuck in the middle of a frictionless frozen lake with only your backpack, how can you get back safely to solid ground?

*September 25, 2013*

**geometry**

15

*September 23, 2013*

**Biology**

False

*September 21, 2013*

**computers**

Networks are often set up in the client/server network arrangement. Raheem has learned that this is a very common type of network arrangement. Discuss two things that Raheem should be concerned with if he decided upon a client/server network arrangement?

*September 18, 2013*

**math**

6hours 15mins

*September 18, 2013*

**Algebra**

It was such a vile inn

*September 17, 2013*

**Statistics**

don't know

*September 14, 2013*

**science**

ypo

*September 13, 2013*

**geometry**

If BC = 16 and AC = 29, find AB.

*September 11, 2013*

**mitx 8.01x Classical Mechanics**

4.981

*September 10, 2013*

**college math**

lol this isn't "college math"; but the answer otherwise is 63+6 because(-9)(-7)=63

*September 8, 2013*

**college math**

answer is -25

*September 8, 2013*

**Math**

Alright I got it thanks so much!!

*September 8, 2013*

**Math**

Okay, I'm in a calculus class but stuck on some algebra...it's not crucial that I get the answer to this but I'm wracking my brain because I can't remember how the following is obtained; if you can show me how this is done in steps I'd greatly appreciate it...

*September 8, 2013*

**Statistics / Business**

According to the National Humane Society, "Stray Cost" or the cost of the care and feeding for a stray dog is $419.00 per year. This amount does not include veterinarian care, but only food, water and shelter. It was found that the standard deviation of this "...

*September 8, 2013*

**law**

Yes there are some issues

*September 7, 2013*