Saturday

May 23, 2015

May 23, 2015

Total # Posts: 1,063

**college math**

4x-5y-4z=2. X+8y+4z=8. 16x-20y-16z=8 solve the following system
*May 13, 2015*

**math**

Given the position function, s of t equals t cubed divided by 3 minus 12 times t squared divided by 2 plus 36 times t, between t = 0 and t = 15, where s is given in feet and t is measured in seconds, find the interval in seconds where the particle is moving to the right.
*April 26, 2015*

**math**

The side length of a rectangular box with a square base is increasing at the rate of 2 ft/sec, while the height is decreasing at the rate of 2 ft/sec. At what rate is the volume of the box changing when the side length is 10 ft and the height is 12 ft? Remember to use the ...
*April 26, 2015*

**calculus**

A water tank has the shape of an inverted right circular cone with base radius 3 meters and height 6 meters. Water is being pumped into the tank at the rate of 12 meters3/sec. Find the rate, in meters/sec, at which the water level is rising when the water is 2 meters deep. ...
*April 25, 2015*

**chemistry**

How many milliliters of 0.748 M Mg(NO3)2 contain 1.700 g of Mg(NO3)2
*April 23, 2015*

**chemistry**

Tim O'connor?
*April 16, 2015*

**chemistry**

500 mL Of hydrogen at 27 degrees celcius and 3 atms pressure is compressed to 100 mL at 100 degrees celsius. What is the new pressure in atms?
*April 9, 2015*

**chem3A**

7.34 grams of a gas occupies a volume of 2.5 liters at a pressure of 1216. mm and a temperature of 73 degrees celsius. What is the molecular weight of the gas?
*April 9, 2015*

**Chemistry**

yes it is but i need help in how to solve it.
*April 9, 2015*

**Chemistry**

In the reaction Ca(OH)2 + 2HCL -> CaCl2 + 2H2O: How many kilograms of H2O will be produced when 0.0948 Kg of Ca(OH)2 react with excess hydrochloric acid?
*April 9, 2015*

**geometry**

A crate is 7ft. Wide 7ft. Deep and 7ft. Tall write the measurements of the crate in exponential notation, standard form, and expanded form
*April 8, 2015*

**math**

A crate is 7ft. Wide 7ft. Deep and 7ft. Tall write the measurements of the crate in exponential notation, standard form, and expanded form
*April 8, 2015*

**math**

Thank you
*March 27, 2015*

**math**

Briana wants to divide 5/8 pound of soil evenly among 4 pots how much soil will be in each pot
*March 27, 2015*

**Chemistry**

You need to prepare 100.0 mL of a pH=4.00 buffer solution using 0.100 M benzoic acid (pKa = 4.20) and 0.220 M sodium benzoate. How much of each solution should be mixed to prepare this buffer? mL of benzoic acid ? mL of sodium benzoate?
*March 27, 2015*

**Chemistry**

5.0x101 mg of NaCl is added to 0.100 L of a 1.4x10-2 M solution of Pb(NO3)2. Calculate the resulting equilibrium concentration of Pb2+ after mixing. Show all work.
*March 4, 2015*

**social studies**

which is the main climate in cyprus 1. tropical and dry 2. continental cool summer 3 mediterranean 4 humid subtropical
*March 3, 2015*

**Human Geography**

"Real-life contact between members of different social groups is always structurally mediated and embedded in particular historical and geographical contexts of power relations between and within social groups." Can some explain this quote to me?
*February 22, 2015*

**Human Geography**

Thanks, Ms. Sue.
*February 21, 2015*

**Human Geography**

What does "challenging white privilege" means?
*February 21, 2015*

**chemistry**

4g of a mixture of CaCO3 and sand is treated with an excess of HCl and 0.88g of CO2 is produced. What is the percentage of CaCO3 in the mixture
*February 17, 2015*

**Chemistry**

1.2048g sample of impure Na2CO3 is dissolved and allowed to react with a solution of CaCl2 resulting CaCO3 after precipitation, filtaration and drying was found to weight 1.0362g. calculate the percentage purity of Na2CO3
*February 14, 2015*

**Chemistry**

6 mol sample of Cu2S is roasted in excess O2 to yield Cu metal and SO2. Calculate the mass of Cu metal produced
*February 14, 2015*

**English**

Do you think that the nostra aetate is important for this era dose this document affect your life
*February 5, 2015*

**English**

Do you think that the nostra aetate is important for this era dose this document affect your life
*February 5, 2015*

**English**

Do you think that there is any thing missing from the nostra aerate
*February 5, 2015*

**English**

Who do you believe is the intended audience ( who was it written for ) of nostra aerate? What is the intended (purpose) of nostra aerate ? Explain answers with exames from the text
*February 5, 2015*

**College Human Geography**

Thanks, Ms. Sue. I got it.
*February 3, 2015*

**College Human Geography**

"Why is there inadequate action by the state to curb the violence?" Can someone explain what the question is asking?
*February 3, 2015*

**College Human Geography**

Thanks, Ms. Sue.
*February 2, 2015*

**College Human Geography**

"What role does race play in the film?" Can someone explain this question?
*February 2, 2015*

**physics II**

A rocket is launched vertically from ground with a constant acceleration. If the rocket emits a burst of sound every five seconds after launching, find the difference of intensity levels observed at the launching site for the first and the second bursts of sound.
*January 31, 2015*

**Physics II**

Please can anyone explain. Thank you. A rocket is launched vertically from ground with a constant acceleration. If the rocket emits a burst of sound every five seconds after launching, find the difference of intensity levels observed at the launching site for the first and the...
*January 31, 2015*

**Geography**

The shoreline has retreated as much as 50 miles and its level has dropped by 40 feet. Can someone explain this sentence to me?
*January 27, 2015*

**English**

Can someone please tell me what this quote means? “We have everything we need to be happy but we aren't happy. Something is missing... It is not books you need, it's some of the things that are in books. The magic is only in what books say, how they stitched the ...
*January 27, 2015*

**Geography**

Thanks, Ms. Sue.
*January 27, 2015*

**Geography**

What does "thristy crops" mean?
*January 27, 2015*

**chemistry**

Calculate the amount of heat required to raise the temperature of a 39g sample of water from 6∘C to 23∘C.
*January 26, 2015*

**College Geography**

"The desert was tamed but the price was calamitous, the worst climatic disaster in the history of the Soviet Union." Can someone explain what tamed means in the sentence? This sentence has to do with the Aral Sea.
*January 25, 2015*

**math**

Johnny is jogging along a track. He has already jogged 1 2/3 miles. He plans to jog a total of 3 1/4 miles. How many miles does he have left to jog?
*January 21, 2015*

**Chemistry **

A 5.00 g mixture of methane (CH4) and ethane (C2H6) is combusted in oxygen gas to produce carbon dioxide and water. If 14.09 g of CO2 is produced, how many grams of methane was in the original 5.00 g mixture ?
*January 21, 2015*

**chemistry**

Nevermind i got it
*January 12, 2015*

**chemistry**

What volume of 1.34 mol/L hydrochloric acid, HCI is expected to react completely with 6.89 g of calcium
*January 12, 2015*

**Sociology (Racism)**

Thank you for explaining it, Ms. Sue.
*January 9, 2015*

**Sociology (Racism)**

Which groups or individuals are able to talk to one another in a constructive way? I don't understand what does "in a constructive way" mean. Can someone explain it.
*January 9, 2015*

**Maths**

If length,breadth of rectangle is 3:4 ,area=6912, find dimension
*December 23, 2014*

**Math**

A ship leaves England for the Strait of Magellan. It is traveling at a constant speed of eight knots and takes 41 days to reach the Strait of Magellan. The ship reaches the Strait of Magellan at the exact time of day that it left England. How far did the ship travel? Choose ...
*December 9, 2014*

**Chemestry**

To fnd the empirical formula i have to convert the percent in g first, or a take the date in percent?
*December 7, 2014*

**geology **

Convert these dates to BP dates (using 1950 as "the present.")1843 ± 50 years BC
*December 2, 2014*

**physics**

A child on a barber shop spins on a stool. If the child turns counterclockwise through 8.0 radians at a certain time and with an angular velocity of 2.56 rad/s. What is the time interval in minutes when the child turns?
*December 1, 2014*

**Physics**

A 1.75-kg wooden block rests on a table over a large hole as in the figure below. A 5.20-g bullet with an initial velocity vi is fired upward into the bottom of the block and remains in the block after the collision. The block and bullet rise to a maximum height of 20.0 cm.
*November 30, 2014*

**geometry**

Equilateral triangle ABC and isosceles triangle DBC share side BC. If angle BDC= 34 and BD=BC, what is the measure of angle ABD? I don't know how to solve this questions, can someone guide me through?
*November 26, 2014*

**Geometry**

Equilateral triangle ABC and isosceles triangle DBC share side BC. If angle BDC= 34 and BD=BC, what is the measure of angle ABD? I don't know how to solve this questions, can someone guide me through?
*November 26, 2014*

**geometry **

the ratio of the length of the corresponding side of two regular polygons is 3:4. the are of the larger polygon is 320m^2. what is the are of the smaller polygon?
*November 20, 2014*

**Math**

I need help on how to explain to my 5th grader how to come up with an algebra equation from a word problem. Any suggestions? Example: Gerry had a total of 30 pens and pencils. He decided to trade with his friends all his pens for pencils. If he traded every pen for 2 pencils ...
*November 20, 2014*

**Algebra**

Gerry had a total of 30 pens and pencils. He decided to trade with his friends all of his pens and pencils. If he traded every pen for 2 pencils, he would have 48 pencils in all. How many pens and how many pencils did he have before the trade?
*November 19, 2014*

**Geometry**

Thank you!
*November 12, 2014*

**Geometry**

Sorry, is it angle N?
*November 12, 2014*

**Geometry**

In triangle NLM, name the angle that is included between line NM and line LN? Is it line LM?
*November 12, 2014*

**Physics**

I have a blue liquid with density 1040 +- 20 yellow liquid 1190 +- 60, (dark)red liquid 1170 +- 30 pink/light red liquid 1100 +- 60 my task is to find out what liquids are they all of the densities were calculated in class(we were doing an experiment).
*November 6, 2014*

**physics**

Daneil is bouncing on a trampoline. After a certain bounce he leaves the ground traveling at a speed of 2.54 m/s. How far into the air does he go? I need helllpppp I'm so bad a physics, I need to know what formula to use..
*November 6, 2014*

**Biology**

Please Give 10 statements to prove that plants can reproduce sexually.
*October 29, 2014*

**Math**

I cannot find anything
*October 19, 2014*

**Math**

Find the first 3 common multiples for 6,7,8.
*October 19, 2014*

**math**

alyssa has saved 26 quarters from washing cars. how many cents does alyssa have?
*October 14, 2014*

**chemistry **

A solution of sodium thiosulfate, Na2S2O3, is 0.4206 M. 28.94 mL of this solution reacts with 5.89 mL of I2 solution. What is the molarity of the I2 solution?
*October 14, 2014*

**English 1**

the first question would be love? and the second would be it model?
*October 13, 2014*

**English 1**

Companies*
*October 13, 2014*

**English 1**

Sorry, put one more sentence Name verb and subject for the sentence "Compaies usually love these qualities." Is the subject companies and verb is usually? and for this sentence "He would be a model employee" Would he be the verb and be the verb?
*October 13, 2014*

**English 1**

thank you
*October 13, 2014*

**English 1**

experience the subject?
*October 13, 2014*

**English 1**

is the verb will?
*October 13, 2014*

**English 1**

What is the verb and subject in this sentence> "His experience with computers and copy machines will be valuable in an office." For the subject I got his but I can't figure out the verb!
*October 13, 2014*

**English 1**

thank you
*October 13, 2014*

**English 1**

For #3, I got Company as the subject and has as the verb
*October 13, 2014*

**English 1**

Thank you! For #1, I got applied as the verb and He was the subject
*October 13, 2014*

**English 1**

In the sentences name the subject and the verb. 1) He applied for one on Tuesday. 2) The position is with a real estate company. 3) The company has an excellent reputation. 4) It pays its employees well and offers great benefits.
*October 13, 2014*

**Chemistry**

If you wanted to make a barometer that had a column of liquid about 6ft tall what would the density of the liquid have to be? 1meter=3.28ft 1in=2.54cm Density Hg=13.6g/ml 1atm=760torr
*October 12, 2014*

**math**

Joe starts a gym. In the first year, 300 people join. If the membership grows at an annual rate of 4%, how many members will there be after 5 years?
*October 9, 2014*

**Physics**

The lion first runs 200 yards at 20 deg. south of west, then 300 yards at 40 deg. west of north, and finally 400 yards at 10 deg east of north at which point it catches up to the deer. How far from the starting point, and in what direction is the point where the lion and the ...
*October 8, 2014*

**Chemistry **

Calculate the number of moles in 2.65x1015 atoms of 14C.
*October 1, 2014*

**Maths**

Find the highest common factor of 693 and 1365?
*October 1, 2014*

**MATH HELP**

arthur wants to model 758 using the fewest blocks possible. how many tens should he use? A. 8 B.5 C.7 D.4
*September 29, 2014*

**math problem solving**

arthur wants to model 758 using the fewest blocks possible. how many tens should he use? A. 8 B.5 C.7 D.4
*September 29, 2014*

**Chemistry **

Aluminum sulfate reacts with calcium hydroxide (from lime) to form aluminum hydroxide and calcium sulfate. Write the balanced formula unit equation for the reaction.
*September 28, 2014*

**Physics College - Circular motion **

At time t1 = 2.00 s, the acceleration of a particle in counterclockwise circular motion is (6.00 m/s2) i^+ (4.00 m/s2) j^. It moves at constant speed. At time t2 = 5.00 s, its acceleration is (4.00 m/s2) i^+ (-6.00 m/s2) j^. What is the radius of the path taken by the particle?
*September 21, 2014*

**Spanish**

2.¿Quién le recomendó ese plato? (su tío) I have to answer this using the double object pronouns. these are the anwers I tried so far: Mi tío me lo recomendó. Su tío se lo recomendó. it is saying that the se lo recomendo...
*September 18, 2014*

**spanish two**

directions: answer the questions using the double object pronouns. example quien te compro esos zapatos? mi tio is the person buys. this is for my question.
*September 16, 2014*

**spanish **

quien le recomendo ese plato? su tio Su tio se lo recomendo. is the answer i first did. Mi tio me lo recomendo was the second. i am on the last allowed attempt and i am not sure what else to do.
*September 16, 2014*

**Algebra**

A motorboat left a harbor and traveled to an island at an average rate of 18 knots. The average speed on the return trip was 10 knots. If the total trip took 14.0 hours, how far is the harbor from the island?
*September 14, 2014*

**Math**

6m by 5m by 4m , rectangular tank How do you know which one is the height?
*September 14, 2014*

**Math**

Thanks!
*September 14, 2014*

**Math**

Mrs lim bought apples at a cost of $150 from the wholesaler. If she sells 1 pace of 5 apples at $2.40, what is the least number of apples she must sell in order to make a profit? I am kind of sure I need to use HCF(highest common factor) in this question.. I might be wrong ...
*September 14, 2014*

**Math7**

You download 12 new songs to ur MP3 player then u delete 5 old songs write each amount as an integer
*September 8, 2014*

**12th Grade Physics**

Ben pulls a rope that is attached to a wagon with a magnitude of 300N. He pulls it in a way that te rope is at an angle of 30 degrees from the horizontal. The mass of the wagon is 2kg and the mass of Mike, who sits on the wagon, is 20kg. While the wagon moves to the right, the...
*August 28, 2014*

**Chem **

1.00 * 10^26 molecules of Tl to moles
*August 26, 2014*

**Economics**

Production Possibilities Curve (PPC) Worksheet All PPC’s Reflect Increasing Opportunity Costs For Numbers 1-10, think the change affects all markets. On all graphs, place “Consumer Goods” on the X Axis and place “Capital Goods” on the Y. 1) Hurricane ...
*August 21, 2014*

**AP Statistics**

For a, I have lie still after embryo transfer for control and acupuncture for randomization. I'm not sure what to put for replicate but i think it's the same as the control...?
*August 20, 2014*

**AP Statistics**

A study sought to determine whether the ancient Chinese art of acupuncture could help infertile women become pregnant. 160 healthy women undergoing treatment for infertility were recruited for the study. Half of the subjects were randomly assigned to receive acupuncture ...
*August 20, 2014*

**science**

Unit 33 discusses a natural way to reinforce science process skills and introduces the scientific method. This strategy, especially appropriate for primary grades, is to have children do which one of the following?
*July 13, 2014*