Friday

February 27, 2015

February 27, 2015

Total # Posts: 122

**Calculus**

The sales of Universal Instruments in the first t years of its operation are approximated by the function S(t) = t 0.96t2 + 25 where S(t) is measured in millions of dollars. What were Universal's average yearly sales over its first 5 years of operation?
*November 25, 2014*

**Science**

If you spin a water-filled cup horizontally on a flat table, did you exert force on the water?
*April 29, 2014*

**science**

How does ozone gas to int get into the earth?
*March 9, 2014*

**Geometry**

What is the reason called when there are two legs on an isosceles triangle, are bisected using a mid segment to form a trapezoid, and you are trying to prove the legs of the trapezoid are congruent?
*January 14, 2014*

**Health**

Can someone please explain the difference between a vasectomy and tubal ligation. I know that one is for men, and one is for women, but that's about it
*January 1, 2014*

**Math**

Divide 3/4 to both sides. 8 divided by 3/4 is the same as 8*4/3. To divide you have to learn this trick called copy dot flip( basically multiplying the multiplicative inverse) for example the multiplicative inverse of 6/7 is 7/6
*September 26, 2013*

**math**

Write an equation: 3s+h=324 where 3s/2=h 3s+3s/2=334 Solve for s Remember a is shoes so substitute your answer in the equation 3s/2=h
*September 26, 2013*

**Geometry**

If line AB is perpendicular to line EF, and line CD is perpendicular to EF, then the measure of angle 1=the measure of angle 2. Give an arguement for the statement and a reason for each step. There is also a diagram drawn on my homework which is a vertical line with two ...
*September 26, 2013*

**Physics**

A girl delivering newspapers covers her route by traveling 2.00 blocks west, 5.00 blocks north, and then 8.00 blocks east. (a) What is her resultant displacement? (only enter the angle of the resultant in the answer space below, not the distance) enter it as a positive angle, ...
*September 16, 2013*

**Physics**

A girl delivering newspapers covers her route by traveling 2.00 blocks west, 5.00 blocks north, and then 8.00 blocks east. (a) What is her resultant displacement? (only enter the angle of the resultant in the answer space below, not the distance) enter it as a positive angle, ...
*September 16, 2013*

**English**

I have an essay about difficulties in life which is based on a book I read with my class. I am having trouble finding difficulties or adversities I have had in my life. Can you please give me some examples of difficulties that you, or anybody else could have had in life. Thank...
*August 20, 2013*

**math**

multiply the height, and the diameter (radius(2)), then subtract the larger glass from the smaller glass.
*August 20, 2013*

**math**

Sorry, can you please provide a description of the circle
*August 20, 2013*

**Humanities**

What gave rise to democracy in Athens? Explain why Plato did not favor democracy as the best form of government in his Republic? Are there any good online sources where I can find the above questions? Thanks.
*June 15, 2013*

**Accounting**

What affect can the incorrect (intentional or unintentional) posting, journalizing, and reporting of financial data have on a company, an accountant, or a company's stakeholders?
*February 11, 2013*

**Literature**

Why do you think the singer was an important person in Danish communities? (Beowulf)
*November 20, 2012*

**math**

Thx ppl
*November 14, 2012*

**math**

in track practice jesse ran a mile in 7 minutes. his mile time was 2.5 times faster than michaels time. write and solve an equation to calculate michaels mile time.
*October 8, 2012*

**Australian Studies**

The ‘great obesity epidemic’ is stated as one of the great health issues in developed nations in the 21st century, especially for Australia. Explain briefly how changes in social beliefs, concerns and values have contributed to this ‘epidemic’, particularly...
*June 24, 2012*

**Australian Studies**

Australia has been described as an ageing society. What is meant by this description and how have government(s) planned for this?
*June 24, 2012*

**Australian Studies**

Explain what the key values in Australian society are? Use examples to highlight your understanding.
*June 24, 2012*

**chemistry**

find the specific heat of lead using 200 g of pb at o degrees celcius and placing it in 200 g of water at 60 degrees celcius
*June 19, 2012*

**3grademath**

no a rhombus has 4 sides
*February 14, 2012*

**computer science**

I need to write a program that ask the student to enter an answer to a math problem. The user should enter two values, one at a time, and then ask for an answer. The program should display if the entered answer is correct or not and display the correct answer if the user ...
*February 14, 2012*

**Design Logic and programming**

write a program that ask the student to enter an answer to a math problem. The user should enter two values, one at a time, and then ask for an answer. The program should display if the entered answer is correct or not and display the correct answer if the user entered the ...
*February 13, 2012*

**science**

1. Secretin 2. Enterogastric reflex 3. Psychological stimuli 4. Gastric Juice 5. Esophagus 6. Salts
*January 29, 2012*

**algebra**

Hi guys: Can any one please tell me what does this means? Thanks ---------------------------------------------------------------------- The second matrix is simply the symmetric version of the first. This 1 2 3 4 5 6 7 1 0 2 3 x 2 4 x 2 2 3 11 2 3 5 3 3 9 2 3 5 4 3 9 3 5 5 9 3...
*December 13, 2011*

**statistics**

a test has a mean score 73 with standard deviation of 12.students with scores greater than 85 recieve an A. What is the percent of the students would we expect to get an A? assume the normal distribution
*November 28, 2011*

**Penn Foster**

Study Unit.. Early Childhood Development {Planning and Implementing For The Enviorment. The three major areas of child care facility are??? There are 4 multiply choices from A to D. Which is the best answer?
*September 19, 2011*

**Penn Foster**

what's the answer to question 1.in subject Planning and implementing for the Envioroment Question, The three major areas of a child care facility are A. Adult,service and storage. B. adult, children's and service C. Children's service. and activity D. storage,...
*September 19, 2011*

**computers in day care**

software program features an electronic coloring book in which children get to paint charscters that comes to life wih a click of a mouse. this type of program is primarily designrd to develop childres's A. hand-eye coordination B. creativity C. emotional maturity d. ...
*July 24, 2011*

**Math**

If you put $5,000/ year into an IRA and get 4% per year, what would you have after 40 years?
*June 22, 2011*

**chemistry**

A sample of oxygen occupies 38.9L at STP. What will the pressure need to be in Torr. if the volume is to be changed to 32.2L without a change in T.
*June 9, 2011*

**physics**

9.0 x 102 is the answer.
*June 6, 2011*

**Physics**

A 1300 kg sports car accelerates from rest to 85 km/h in 6.2 s. What is the average power delivered by the engine?
*February 28, 2011*

**physics**

How long will it take a 1280 W motor to lift a 345 kg piano to a sixth-story window 19.0 m above?
*February 28, 2011*

**OLSAT**

I don't know if this can be answered here but, I will ask. My son took the OLSAT test. He is a first grader but, on my assessment results he is listed as a 4th grader. His SAI is 110. Would this error change his results?
*February 19, 2011*

**maths**

how do you draw a line of best fit on a scatter graph?
*February 15, 2011*

**maths**

how can you divid it down ms sue
*February 15, 2011*

**maths**

what is the ratio in the simplest form 120:60
*February 15, 2011*

**maths**

thankyou ms sue
*February 15, 2011*

**maths**

homework please answer
*February 15, 2011*

**algebra**

How do you solve an equation like: (5-11)/x+2=3
*December 17, 2010*

**Math**

I am stuck on a problem that has to do with the double angle formulas. I have to solve this: 4sinxcosx = 1. I tried using the formula 2sinu = 2sinucosu by substituting it in like this: 2(2sinxcosx)= 1 but then I am stuck
*December 6, 2010*

**chemistry**

what is the number of mole equivalents of H2 produced by the reaction of 1 mole equivalent of Mg (m) with H2SO4 (aq)?
*November 13, 2010*

**physics**

A 500 g steel block rotates on a steel table while attached to a 2.0-m-long massless rod. Compressed air fed through the rod is ejected from a Inozzle on the back of the block, exerting a thrust force of 3.5 N. The nozzle is 70^\circ from the radial line, as shown in the ...
*November 10, 2010*

**AP psychology**

I'm having trouble figuring out this question: Three yr old Marco suffered damage to the speech area of the brain's left hemisphere. Research suggests that a) he will never speak again b) his earlier experiences with speech will enable him to continue speaking c)his ...
*October 18, 2010*

**Geography**

How do I calculate gradient when I end up with and odd number: I understand the example, which ends up 80m/1600m = 1/20 therefore the answer is 1:20. However what do I do when I have an answer like 637/2200, which is an odd number, how does this then translate or do I leave ...
*October 12, 2010*

**English**

The swimming strokes of the woman were jerky. Is this the correct verb to use in this sentence? The Subject is plural not so, so the verb must be plural too!
*October 11, 2010*

**5th grade**

make pu a data set of at least 12 numbers that have the following landmarks maximum 18 mode 7 range 13 median 12
*October 7, 2010*

**English**

The acrobats performed an amazing BALANCING act. Is balancing an adjective in this sentence?
*September 27, 2010*

**english**

What are the two topic sentences of this paragraph? “As I was sewing the top of the pillow, my grandmother mumbled along, her frail voice faltering as she gasped for breath in between disjointed sentences and phrases. She explained the reason for all her tiresome efforts...
*September 27, 2010*

**English**

1. Was my Nkhono really going to die? 2.Why did she say that when she was dead, my uncles would put her corpse aside and search for her money all over the house?”
*September 27, 2010*

**English**

What are the two topic sentences of this paragraph? “As I was sewing the top of the pillow, my grandmother mumbled along, her frail voice faltering as she gasped for breath in between disjointed sentences and phrases. She explained the reason for all her tiresome efforts...
*September 27, 2010*

**math**

The total area of three flowerbeds is 8 13/20m². Calculate how much of the garden remains if the whole garden covers 10 squared meters. Please show the working.
*September 26, 2010*

**math**

Is this right? smallest to biggest 0.62 31/50 0.67 2/3 0.67 67/100 0.6 3/5
*September 26, 2010*

**Math**

Is this right? smallest to biggest 0.62 31/50 0.67 2/3 0.67 67/100 0.6 3/5
*September 26, 2010*

**Math**

Write each of the fractions in their decimal form and then arrange them from the smallest to the biggest. 2/3 3/5 31/50 67/100
*September 26, 2010*

**Math**

The total area of three flowerbeds is 8 13/20m². Calculate how much of the garden remains if the whole garden covers 10 squared meters. Please show the working!
*September 26, 2010*

**math**

3m/m is a fraction. How do I right it as a whole number. Is it just 3?
*September 24, 2010*

**math**

what is 3m/m (fraction), Written as a mixed fraction
*September 24, 2010*

**science**

how can i make an Auto-Off Candle by Lisa Marie Wright?what is the materials included?
*September 8, 2010*

**chemistry**

Determine the minimum concentration of the precipitating agent on the right to cause precipitation of the cation from the solution on the left. 3.0*10^-2 M BaNO3;NaF
*July 29, 2010*

**chemistry**

When a solution of 6M HCl is made from a stock of concentrated HCl by adding an equal volume of water, why is the concentration of the solution only an approximate concentration?
*July 25, 2010*

**math**

identify the ff properties in the given quadratic equations: a.Vertex b. axis of symmetry c. Domain d. Range e direction of graph 1.f(x)=x2-5x+14
*July 25, 2010*

**chemistry**

What solid is formed upon addition of silver nitrate to a solution of cobalt chloride?
*July 22, 2010*

**arithmetic**

The cost of a lunch of 1 pizza and 2 cups of coffee is $7. The cost of a lunch of 3 pizzas and 5 cups of coffee was $20 at the same cafe. How much will 1 pizza and 1 cup of coffee cost? Thanks!
*June 16, 2010*

**Algebra**

Thank you! i had those answers but they looked funny. Thanks again
*June 9, 2010*

**Algebra**

I am stuck on a question about composition functions. They want you to find f(g(x)) and g(f(x)) using the following numbers: g(x)= 10x f(x)= x (squared)+4
*June 9, 2010*

**Algebra**

So on this worksheet i am doing, we have to find the nth term, given "s" sub "n". I got up to the point of the quadratic, set it equal to zero, but can not find the correct factors. can anyone help? n(squared)+10n-4544=0 n(squared)-6n-420=0 n(squared)+6n-276
*June 2, 2010*

**Algebra**

i am stuck on this one math problem. The question is to write a rule for the pattern (it is a section on sequences) The pattern is -5,10,-15,20,-25. What is the rule? A sub n = ?
*May 26, 2010*

**English**

Why does Daisy cry over Gatsby's shirts in the "The Great Gatsby" when he is showing her his house. Is there any significance?
*April 15, 2010*

**English**

Why does Nick the narrator refer to character differently every time he talks to them? For example, sometime he refers to Tom as "Tom" but other times, he refers to him as "Tom Buchanan"? is there a reason for this?
*April 8, 2010*

**English**

What does the green light symbolize in the Great Gatsby when Gatsby vanishes in chapter 1?
*April 8, 2010*

**European history**

thank you!
*April 3, 2010*

**European history**

well i picked d but it is incorrect. i believe the right answer is B because they both discuss pessimistic views of the working class and with Malthus he believed that the the population would outrun the food supply so then poverty would occur. Ricardo talks about wages ...
*April 3, 2010*

**European history**

Chose the correct answer and explain why: Malthus and Ricardo would both agree that a. One solution to poverty was to pay higher wages b. Poverty was inevitable c. Economic growth would end up in poverty in the long run d. capitalism is an evil system
*April 3, 2010*

**Chemistry**

Is the compound C2H3Cl polar or nonpolar and why?
*March 29, 2010*

**math **

F=(9/5)C +32
*March 29, 2010*

**integrated algebra**

Multiply through the parenthesis 32a -8 = 24 add 8 to each side 32a=32 Divide both sides by 32 a=1
*March 29, 2010*

**math**

F=(9/5) x degrees C + 32 See if you can do it
*March 29, 2010*

**math**

5w + 1.5 =4.5 -1.5 -1.5 5w=4 divide each side by 5 w=4/5
*March 29, 2010*

**math**

Please go back to your posts about the 1.5L-there is a correction. Also, your answer to the 50=3m+2 was wrong-go back to check the correction.
*March 29, 2010*

**5th grade**

An adverb modifies a verb (an action word) while an adjective modifies a noun (person place or thing.
*March 29, 2010*

**math**

Picture tiles (each one foot by one foot) on a floor. If you have 2 tiles wide and 2 tiles deep (2 x2) you would have 4 tiles or 4 square feet.
*March 29, 2010*

**Science-Elements**

Those are tough questions-to know what is in the mind of the teacher that writes them. Most appear to be metals Tin, Copper, Gold... Perhaps the scientists decided to use Latin names for these. They couln't have 2 C elements (Carbon and Copper) and Co is already Cobalt ...
*March 29, 2010*

**Science-Elements**

Latin Name for Gold is Aurum and thus the symbol is Au, not Go as you might expect. Similarly, Lead in Latin is Plumbum so the Symbol is Pb. Copper is Cu, Potassim K. Other symbols were named in other ways. Oxygen is O, Hydrogen H, Sulfur S. Look at your Periodic Table.
*March 29, 2010*

**math**

Change all the denominators to 12ths. For example, 1/6=2/12 (multiply numerator and denominator by 2) Then you can add all the numerators to get the answer in twelfths. Try it yourself.
*March 29, 2010*

**math**

You need to multiply 8.00 by 4.5 (hours) EASY!
*March 29, 2010*

**English/History**

Thanks-just what I needed.
*March 29, 2010*

**math**

No 50-2=3m+2-2 48=3m 48/3=3m/3 16=m
*March 29, 2010*

**math**

Subtract 2 from each side. Then divide each side by 3. You can do it!
*March 29, 2010*

**MATH**

5n+15=4n+12 -4n -4n n+15=12 -15 -15 n=-3 Check 5(-3+3)=3(2*-3 +6) 5(0)=3(16+6) 0=3(0) 0=0 4x-4+2x+8 6x+4
*March 29, 2010*

**7th grade**

There are 1500 ml in 1.5L Sammi said .0015. you multiply 1.5 by 1000 not divide it!
*March 29, 2010*

**College Chem**

4. Write the balanced equation for CH4+Cl2„_CH2Cl2+HCl What are 3 ways you can speed the reaction in this equation?
*March 29, 2010*

**College Chem**

10kcal?
*March 29, 2010*

**College Chem**

4. Write the balanced equation for CH4+Cl2„_CH2Cl2+HCl6. For the reaction in problem 4, Heat of Reaction = -118.3 kcal/mol. Identify whether this is an exothermic or endothermic reaction. Calculate the Heat of Reaction when 6.00 g of Cl2 are used in the reaction.
*March 29, 2010*

**Microbiology**

Why are fermentation tubes evaluated at 24 and 48 hrs? If an organism oxidatively metabolizes glucose, what will occur in the fermentation tubes?
*March 29, 2010*

**Chemistry**

4. Write the balanced equation for CH4+Cl2„_CH2Cl2+HCl 4a. For the reaction in problem 4, ƒ´H = -118.3 kcal/mol. Identify whether this is an exothermic or endothermic reaction. Calculate the ƒ´H when 6.00 g of Cl2 are used in the reaction
*March 29, 2010*

**Chemistry**

8. For the reaction H2(g)+I2(g)„\2HI(g); [H2] = 0.95 M; [I2] = 0.78 M; [HI] = 0.27 M. Calculate the equilibrium constant K and describe the direction (forward or reverse) of the reaction. Will adding a catalyst to the reaction alter the direction of the reaction? Why? ...
*March 29, 2010*