Friday

November 27, 2015
Total # Posts: 1,461

**Chemistry**

A student titrates a 25.00 mL sample of HCl. If 20.50 mL of 0.175 M of KOH is required to reach the end point, what is the concentration of the HCl? 25.0 mL HCl x 1L/1000 mL x 0.175 M/1 L = 0.004375 mol HCl 0.004375 mol HCl/20.50 mL KOH x 1000 mL/1 L = 0.213 M HCl (I'm ...
*November 19, 2015*

**Maths**

A piece of ribbon is 50 cm long how many 10 1/2 cm length of ribbon can be cut from it? How much is left over?
*November 16, 2015*

**English**

1. Based on the reading selections in Unit 3 of Journeys in Literature, consider the varied purposes the authors had for writing. What do they reveal about diversity (variety) within the new nation? Note: Do not write about issues with diversity as we see them in the world ...
*November 11, 2015*

**Physics**

1. Name three different kinds of graphs that are often used to plot information and discuss the value of each. i have no idea what the heck this means
*October 29, 2015*

**Gym**

a baseball is a small ball that is hard like a softball and a kikball is the size of a soccerball
*October 29, 2015*

**English Language**

Find the complete subject and complete predicate in the following sentence: His choice included land in both Maryland and vVirginia.
*October 27, 2015*

**math**

1800
*October 25, 2015*

**math**

one-half of the students in a city school plan to enter liberal arts colleges and one-third of the students plan to go to junior college.The remaining 300 pupils expect to seek permanent employment after graduation.How many students are there in this school?
*October 25, 2015*

**physics**

An object is launched at a speed of 24.68 m/s from the top of a tall tower. The height y of the object as a function of the time t elapsed from launch is y(t) = –4.905 t2 + 18.01 t + 60.34, where y is in meters and t is in seconds. Determine: a) the height H of the tower;
*October 16, 2015*

**Literature**

What is the theme of "Greek Meets Greek
*October 5, 2015*

**chemistry**

how many rb atoms could be placed on a square surface that is 1.0cm on a side? The diameter of a rb atom is 4.95
*October 4, 2015*

**Algebra**

A man flies between two cities; on a windless day, he averages 120 mph round trip; on a windy day he averaged 140 mph with the wind; he averaged 100 mph against the wind; on the windy day, it took 15 extra minutes to make the round trip; what is the distance between the two ...
*October 4, 2015*

**chemistry**

The mass value for Br-79 is 78.918amu. Find the mass of Br-81
*October 1, 2015*

**GRE prep**

A sphere with diameter 1 unit is enclosed in a cube of side 1 unit each. Find the unoccupied volume remaining inside the cube.
*September 29, 2015*

**science**

A student adds 3 spoons of salt to 100 ml of water. The solution is clear with nothing on the bottom of the cup. One spoon of the salt has a mass of 5g. What is the mass of the solution? After the water evaporates what is the mass of the solid remaining in the cup?
*September 24, 2015*

**science**

a student adds 3 spoons of salt to 100 ml of water. the solution is clear, with nothing on the bottom of the cup. one spoon of the slat ha a mass of 5g. what is the mass of the solution? after the water evaporates, what is the mass of the solid remaining in the cup?
*September 24, 2015*

**Math**

Estimate. Then Find the sum. 740,758 -263,043 ----------
*September 17, 2015*

**accounting**

Event: One stockholder reported to the company that 330 shares of his East Hill stock had been sold and transferred to another stockholder for $3,700 cash. what effects does this event have on the balance sheet of a company? How do I input this in the balance sheet (asset= ...
*September 11, 2015*

**Computer Programming**

2. Chocolate Delights Candy Company manufactures several types of candy. Design a flowchart or pseudocode for a program that accepts a candy name (for example, "chocolate-covered blueberries"), price per pound, and number of pounds sold in the average month. Display ...
*September 7, 2015*

**Math **

The temperature was negative for Celsius at midnight by the next morning the temperature rose by 12 Celsius what would be the temperature for the morning
*September 4, 2015*

**Calculus**

A line rotates in a horizontal plane according to the equation Y = 2t^3- 6t, where Y is the angular position of the rotating line, in radians, and t is the time, in seconds. Determine the angular acceleration when t = 2 sec.
*August 22, 2015*

**Socials**

Yes, it's true that I don't know much about this topic. But that doesn't mean I can't learn about something new and more important. Thank you Reed!
*August 12, 2015*

**Socials**

I am coming up with a sample debate topic outline(not too elaborate) for class- and it must be on a current, global issue. I am thinking on addressing the currency fluctuations, but I don't really understand how any of it works, the current situation, or it's ...
*August 12, 2015*

**Statistics**

a seed company advertises that, if its seeds are properly planted, 95% of them will germinate. What is the probability that, when 20 seeds are properly planted, at least 15 will germinate - pM( 19/20)? pq(1/20)? 20c15 20c16 all the way up to 20C10? Don't know if I am ...
*July 21, 2015*

**chemistry**

The synthesis of a certain drug can be carried out with 91.7% yield. In one experiment 14.8 g of the drug was obtained. What was the theoretical yield for this experiment?
*July 9, 2015*

**Algebra**

first five terms in the geometric sequence an =(2)^n-1 starting with n^1
*June 13, 2015*

**history**

Which of the following caused a rapid increase in the demand for coal and other fossil fuels in the late 1800s? HOME HEATING IN THE NORTH NEW SHIPS USING STEAM POWER COTTON PRODUCTION IN THE SOUTH MANUFACTURING IN THE NORTHEAST
*June 7, 2015*

**Straight-line**

A truck costs $35,000 with a residual value of $2,000. Its service life is five years. Using the declining-balance method at twice the straight-line rate, the book value at the end of 2 years is?
*June 1, 2015*

**Algebra II**

Can someone please help me with PEMDAS? 4² + [15 ÷ 9 - 3(2)] if you do parentheses first then 15 ÷ 9 doesn't make sense. So I did, 16 + 15 ÷ 3 = 21 Thank you!!
*May 31, 2015*

**Agricultural Science,Business Studies,History,Life Orientation.**

I agree with Sue - you need to decide what you want to do for a living? I know that Mississippi State College has an excellent Agriculture program.
*May 31, 2015*

**Algebra II**

Thank you for your help with this Damon.
*May 31, 2015*

**Algebra II**

Can you please let me know if I solved the following equation correctly? 1 + 5(n-8) = 2 - (n +5) 1 + 5n - 40 = 2 - n - 5 -39 + 5n = -3 - n 6n = 36 n = 6 Thank you very much!
*May 31, 2015*

**geometry**

(-1, -4)
*May 31, 2015*

**Algebra II**

Thank you for answering my question Sue.
*May 29, 2015*

**math**

volume of pyramid is 48 cu. ft. What is surface area if height is 4 ft and has a square base
*May 24, 2015*

**Debate/Economics**

How can the educational infrastructure of countries who are lacking or weak in educational imfrastructure be improved? Is funding an educational burden? Is a standards based education beneficial? I money the only issue? What other types of foreign aid can a country, like New ...
*May 22, 2015*

**English**

I think it is a victim of war, do you think that makes sense? Cuz it specifically says "would scarcely know that WE were gone"- the "we"? Does that say anything?
*May 20, 2015*

**English**

I need to use the SMELL(speaker, meaning, emotion, language, layout) method to analyze the poem "There Will Come Soft Rains" by Sara Teasdale, and explain all 5 elements and prove them with a quote. I think I have the rest down, except the speaker. Who is the speaker...
*May 20, 2015*

**a n p**

RESPIRATORY CENTER OF THE NERVOS SYSTEM ? MEDULLA OBLONGATA CEREBELLIUM HYPOTHALAMUS HYPOCAMPUS i BELIEVE THAT IS MEDULLA OBLONGATA
*May 20, 2015*

**a n p **

orthopedic surgen informs you that you have broken the distal region of the humerus. what is he decribing? epiphysis endosteum diaphysis perichondrium I am not sure, I tried looking for the answer came to a dead end
*May 20, 2015*

**a n p **

which structure regluates the transport of substances in and out of a cell? cell's cytoplasm cell membrane nuclear membrance cell wall I believe it is cell membrane
*May 20, 2015*

**A n P **

the tympanic memebrance is located between which structures a)retina and the sclera b)the lungs pleural cavity c) the pericardium and the myocardium I believe it is rentian and the sclera
*May 20, 2015*

**English**

true and false question are called Rejective Objective Dejective Subjective I think it's dejective Objective exams , subjective test contain More question Harder question Fewer question No good answer I think it's more question
*May 19, 2015*

**English **

Is there a contraction for They are
*May 19, 2015*

**English**

Because I want to go to the movies later, I am going to make my homework now. Word used incorrect To Am going to Make To go Make is incorrect
*May 19, 2015*

**English**

The doctor wrote the prescription for cough medicine ....... Speed Illegibly Not right Inept Illegibly is correct
*May 19, 2015*

**English**

Envelops
*May 19, 2015*

**English **

The mailperson's job is to put the envelop's in every mailbox on the block Word used in correct every Block Envelop's Mailperson's
*May 19, 2015*

**English**

She went to the party. ..... Her dislike for the host Fill in the blank Although Despite of In spite of Even though In spite of and despot of sound correct but not to sure which one make better since .?
*May 19, 2015*

**English **

You can't tell a book by "it's cover" is an old adage It's cover begin used correctly I believe it's should be its?
*May 19, 2015*

**English **

The most important thing in life are making money, traveling aboard , and to live well. are begin used correctly I feel like the word should be replaced with the word is?
*May 19, 2015*

**Math**

Ari begins painting at 12:00 noon. At 12:30 he estimates that 15.75 gallons of paint are left, and at 2:00 he estimates that 10.5 gallons of paint remain. If the paint is used at a constant rate, how many gallons of paint were there at the start of the job? I feel dumb for not...
*May 18, 2015*

**math**

People in the United States throw away 2.5 million plastic bottles per hour. How many bottles per year are thrown away.
*May 16, 2015*

**math**

To mix a punch, Lindsay begin with 3 liters of lemon-lime soda and add 1,893 milliliters of cranberry juice. How many liters are in the punch bowl when the punch is completed.
*May 14, 2015*

**Math 100**

A triangular prism measures 81 cm long. Its cross section is an equilateral traingle with a base of 16 centimeters and a height of 14 cm. Find the surface area of this triangular prism.
*May 14, 2015*

**Maths**

A solar heater with a collector area of 58.0 m2 is required to heat 2560 kg of water. Under the same conditions, how much water can be heated by a rectangular solar collector 9.50 m by 8.75 m?
*May 9, 2015*

**math**

A contractor, Mr. Parker charged his customer $100 for painting a rectangular ceiling of length 5.4m and width 3m. Another contractor, Mr. Lewis charged his customer $115 for painting a rectangular ceiling of length 5.7m and width 3.2m.The quality of work is the same and both ...
*May 7, 2015*

**Help plz on Calc **

The portion of the ellipse x^2/9+y^2/4=1 with x greater than or equals to 0 is rotated about the y-axis to form a solid S. A hole of radius 1 is drilled through the center of S, along the y-axis. Find the exact volume of the part of S that remains. Show all steps. (Hint: use ...
*May 6, 2015*

**calculus 1 (I need help)**

The portion of the ellipse x^2/9+y^2/4=1 with x greater than or equals to 0 is rotated about the y-axis to form a solid S. A hole of radius 1 is drilled through the center of S, along the y-axis. Find the exact volume of the part of S that remains. Show all steps. (Hint: use ...
*May 6, 2015*

**math**

use L'Hospital's rule to evaluate: limit as x approaches to 0 of (1/sinx -1/x)
*May 6, 2015*

**Calc**

Use the table of integral to evaluate: the integral of x^4 sinxdx. Please indicate the number of formula used.
*May 6, 2015*

**chemistry**

How many moles are contained in 3.25 L sample of an ideal gas at 25oC and 204 kPa?
*May 5, 2015*

**English**

In the short story "There Will Come Soft Rains" by Ray Bradbury, what are some examples in the text of contrast? I have one, how the imagery of surrounding is gruesome juxtaposed against the cheerful moment of bliss of the children playing ball, yet again contrasted ...
*May 4, 2015*

**Calculus**

I don't know, this is the problem I got from my math teacher
*May 3, 2015*

**chemistry**

Sodium peroxide reacts vigorously with water to produce sodium hydroxide and oxygen. The unbalanced equation is Na2O2(s) + H2O(ℓ) −! NaOH(aq) + O2(g) What mass of O2 is produced when 24 g of Na2O2 react? What mass of water is needed to react completely with the Na2O2?
*May 1, 2015*

**English**

I have a major poetry test tomorrow and I just wanted to know how to tell apart a blank verse from a free verse. Thanks
*April 23, 2015*

**chem**

how to find mass of aspirin if I used 0.2845g of the powder(crushed apririn) with 1mL of 6.0 mol/L of Nacl? Does the dilution(the above chemicals are diluted in a 500mL volumetric flask) matter ,and does adding the HCL/Fe^3+ stock solution in the end matter (1.00 mL of the the...
*April 23, 2015*

**chemistry **

how to find mass of aspirin if I used 0.2845g of the powder with 1mL of 6.0 mol/L of NaOH?
*April 23, 2015*

**chemistry**

How to calculate the concetration on a Beer's law plot?
*April 22, 2015*

**calc**

find the area under the region bounded by the curves y=x^2-3 and y=2x.
*April 22, 2015*

**math**

find the value of the definite integral from 1 to 3 of (lnx/x) dx.
*April 22, 2015*

**calculus**

find the area under the curve y= 1/(3x+1)^2 over the interval [0,1]. please show all steps
*April 22, 2015*

**English**

Is it from Act 4 scene 3? --> (sparknotes no fear shakespeare) Only Emilia has a long enough speech, but I still want one by Othello or Desdemona.(I need a long block of speech that has at least 12 lines from one speaker.)
*April 19, 2015*

**English**

I have to memorize and recite exactly 12 lines from Shakespeare's "Othello" for class. I am having trouble picking from the entire play, a nice and notable speech section from the play. Any suggestions? I would prefer a part by Othello or Desdemona :) (Please ...
*April 19, 2015*

**calculus (please help. URGENT!)**

A hemispherical tank with a radius of 10m is filled from an input pipe at a rate of 3m^3/min. How fast is the water level rising when the water level is 5m from the bottom of the tank? (hint: the volume of the cap of thickness of h sliced from a sphere of radius r is pih^2(3r-...
*April 15, 2015*

**math **

Imagine a flat-bottomed cylinderal container with a circular cross section of radius 4 in. a marble with radius 0<r<4 inches is placed in the bottom of the can. what is the radius of the bottom that requires the most water to cover it. (include first or second derivative...
*April 15, 2015*

**calculus**

A hemispherical tank with a radius of 10m is filled from an input pipe at a rate of 3m^3/min. How fast is the water level rising when the water level is 5m from the bottom of the tank? (hint: the volume of the cap of thickness of h sliced from a sphere of radius r is pih^2(3r-...
*April 15, 2015*

**integral**

thank you!
*April 15, 2015*

**integral**

integral from 0 to pi/4 of (secxtanx dx) Please show how to find the antidervative of secx and tanx.
*April 15, 2015*

**calculus (optimization prob help!)**

Imagine a flat-bottomed cylinderal container with a circular cross section of radius 4 in. a marble with radius 0<r<4 inches is placed in the bottom of the can. what is the radius of the bottom that requires the most water to cover it. (include first or second derivative...
*April 15, 2015*

**calculus (steps and explanation plz)**

Find a curve y=f(x) with the following properties (i) y"=6x and (ii) its graph passes through the point (1,1) and has a horizontal tangent there.
*April 15, 2015*

**BUS 303 HUMAN RESOURCES MANAGEMENT**

I NEED HELP RESPONDING TO A CLASSMATE IN 200 TO 25 WORDS, CONDUCT A BASIC SWOT ANALYSIS OF AN ORANIZATION OR DEPARTMENT TO WHICH YOU BELONG HOW DO YOU SEE THESE FACTORS AFFECTING THE DIRECTION OF HR
*April 13, 2015*

**algebra**

In a natural gas pipeline, the velocity v (in m/s) of the gas as a function of the distance x (in cm) from the wall of the pipe is given by v = 5.2x − x^2 . Determine x for v = 4.8 m/s.
*April 13, 2015*

**math help please**

Determine which function has the greater rate of change in questions 1−3 1. x y ------- -1 0 0 1 1 2 2 3 (1 point) The rates of change are equal. The graph has a greater rate of change.*** The table has a greater rate of change. none of the above 2. y = 2x + 7 The slopes...
*April 9, 2015*

**math (explanation and answer)**

A conical drinking cup is made from a circular piece of paper of radius R inches by cutting out a sector and joining the edges CA and CB. Find the radius, height and volume of the cone of greatest volume that can be made this way
*April 9, 2015*

**calc (with through steps)**

A conical drinking cup is made from a circular piece of paper of radius R inches by cutting out a sector and joining the edges CA and CB. Find the radius, height and volume of the cone of greatest volume that can be made this way
*April 9, 2015*

**calc(steps and explanation also)**

A hot air balloon is 150 ft above the ground when a motorcycle passes beneath it (traveling in a striaght line on a horizontal road) going 58 ft/sec. If the balloon is rising vertically at a rate of 10 ft/sec, what is the rate of change of the distance between the motorcycle ...
*April 9, 2015*

**calc (plz, with steps and explanations)**

A conical drinking cup is made from a circular piece of paper of radius R inches by cutting out a sector and joining the edges CA and CB. Find the radius, height and volume of the cone of greatest volume that can be made this way
*April 9, 2015*

**calculus (please with steps and explanations)**

consider the function f that is continuous on the interval [-5,5] and for which the definite integral 0(bottom of integral sign) to 5(top of integral sign) of f(x)dx=4. Use the properties of the definite integral to evaluate each integral: (a) definite integral from 0(on the ...
*April 9, 2015*

**calculus**

consider the function f that is continuous on the interval [-5,5] and for which the definite integral 0(bottom of integral sign) to 5(top of integral sign) of f(x)dx=4. Use the properties of the definite integral to evaluate each integral: (a) definite integral from 0(on the ...
*April 8, 2015*

**calculus**

A conical drinking cup is made from a circular piece of paper of radius R inches by cutting out a sector and joining the edges CA and CB. Find the radius, height and volume of the cone of greatest volume that can be made this way
*April 8, 2015*

**Calculus**

A hot air balloon is 150 ft above the ground when a motorcycle passes beneath it (traveling in a striaght line on a horizontal road) going 58 ft/sec. If the balloon is rising vertically at a rate of 10 ft/sec, what is the rate of change of the distance between the motorcycle ...
*April 8, 2015*

**calculus **

A conical drinking cup is made from a circular piece of paper of radius R inches by cutting out a sector and joining the edges CA and CB. Find the radius, height and volume of the cone of greatest volume that can be made this way.
*April 8, 2015*

**Calculus (urgent help)**

consider the function f that is continuous on the interval [-5,5] and for which the definite integral 0(bottom of integral sign) to 5(top of integral sign) of f(x)dx=4. Use the properties of the definite integral to evaluate each integral: (a) definite integral from 0(on the ...
*April 8, 2015*

**English**

oh apologies. I live in the west coast.. time difference of 3 hours.
*April 8, 2015*

**English**

Quick! Is "But I'll set down the pegs that make this music" act 2 scene 1 line 185(sparknotes) of play Othello a metaphor? It is right? I hope I am right!
*April 8, 2015*

**English**

oh also, is this line ¡°with as little a web as this I will ensnare as great a fly as Cassio¡± considered a simile or metaphor?
*April 7, 2015*

**English**

I need to describe the use of sound in Othello the play. Could someone give me an example from Act II for me to analyze please?
*April 7, 2015*

**science 1 question**

4. When a fan is turned on, it changes electrical energy into __________ energy. (1 point) motion magnetic gravitational*** electromagnetic
*April 6, 2015*

**social studiesssssssssssssssssssssssssssss**

2.c,d 3. a,b,d
*April 6, 2015*