# Posts by tara

Total # Posts: 369

algebra
the expression below is the factorization of what trinomial -7(x+5)(x+8)

college
How will the use of Ashford’s Online Library aid you in finding credible resources to support your academic writing?

Positive behavior support is an application of a behaviorally-based systems approach to enhance the capacity of schools, families, and communities to design effective environments that improve the link between research-validated practices and the environments in which teaching...

Discuss generally the role of planning in each of the three levels of positive behavior support (PBS).

Describe two planning processes typically used in programs for children, youth, and families.

science
how do you make a phytoplankton at home

Physics
When I initially did it I got 2.23Hz.. which was also incorrect.

Physics
Original Question: A block hangs in equilibrium from a vertical spring. When a second identical block is added, the original block sags by 5.00 cm. What is the oscillation frequency of the two block system? bobpursley s'ltn: F=kx = mg x=mg/k but for the second block we ...

Physics
A block hangs in equilibrium from a vertical spring. When a second identical block is added, the original block sags by 5.00 cm. What is the oscillation frequency of the two block system?

math
Consider a simple game in which you will roll a six-sided die and receive \$3.00 if you roll a 6. If it costs you \$0.90 for each roll, what is the expected value?

chemistry
a buffer is made by mixing 0.1 moles of acetic acd a sodium acetate in 500 ml of solution. determine the pH of the buffer. (Ka for acetic acid - 1.8E-5)

chemistry
the molar solubility of PbS, in a 0.150 M ammonium sulfide (NH4)2S solution is? The Ksp for PbS= 3.2E-28.

chemistry
calculate the pH of a 1.94M solution of nitrous acid (HNO2 - ka = 4.5E-4).

chemistry
the activation energy is 31.7kj/mol. if the reaction rate is 7.4E-2 at 35.0 degrees c, what is the reaction rate constant at -55.0 degrees c.

chemistry
for a given reaction, the activation ener

chemistry
I am doing a boiling point problem and don't know the value of i for the equation delta T = i(kb)(m) solution contains 45.0g caffeine in 25.0 g benzene.

chemistry HELP
laboratoories order hydrochloric acid as a concentrated solution (e.g. 36% W/V). what initial volume of concentrated laboratory hydrochloric acid should be diluted to prepare 5.00L of a 0.12 mol/L solution for an experiment? plz can someone show me how to do it step by step...

chemistry need help plzzz tomorrow is a TEST!!!
phosphoric acid is the active ingredient in many commercial rust-removing solution.calculate the volume of concentrated phosphoric acid (14.6 mol/L)that must be diluted to prepare 500mL of a 1.25 mol/L solution. how can i calulate the volume cocentration for this question.... ...

art
no he is a composer

Even the correct formula to use would be a HUGE help!

consider the reaction: CO(aq) + Cl2 (aq) --> COCl2 (aq). Calculate Delta G at non standard conditions. T = 298.15K. Concentration of COCl2 is reduced to 0.01832 M while the concentrations of CO and Cl2 remain 1M. Delta G rxn = -67.4 kj.

chemistry
why is this reaction spontaneous? Mg + 2Cu2+ --> Mg2+ + 2Cu+ Mg2+ + 2e --> Mg E= -2.37 V Cu2 + e --> Cu+ E= 0.15 V

chemistry
Thank you! This helped a lot!

chemistry
For the voltaic cell Cr(s)/Cr3+(aq)//Ni+2 (aq)/Ni(s), list the reactions at the cathode, anode, and the overall net reaction.

chemistry
For a certain reaction, Delta H(not) = -76.8 kj and delta S(not) = -217 j/k. If n =3, calculate E for the reaction at 25degrees celcius.

chemistry
For a certain reaction, Delta H(not) = -76.8 kj and delta S(not) = -217 j/k. If n =3, calculate E for the reaction at 25degrees celcius.

Chemistry
For the voltaic cell Cr(s)/Cr3+(aq)//Ni+2 (aq)/Ni(s), list the reactions at the cathode, anode, and the overall net reaction.

chemistry
assuming the following reaction proceeds in the forward direction, what is oxidized and what is reduced? Cu2+ (aq) + Ca(s) --> Cu (s) + Ca2+ (aq)

chemistry
consider the reaction: CO (aq) + Cl2 (aq) --> COCL2 (aq). Calculate Delta G at non standard conditions for the reaction at 298.15k, if the concentration of COCl2 is reduced to 0.01832M, while the concentrations of CO and cl2 remain at 1M. Delta G rxn = -67.4kj.

chemistry
Calculate the Delta G(not) for the reaction: C(s) + CO2 (g) --> 2 CO Delta Gf : CO2 = -394.4 kj/mol Delta Gf : CO = -137.2 kj/mol

Math
((6-6)x6)+6/6 = 1

UNIVERSITY COMPOSITION AND COMMUNICATION I (AXIA)
I start this class in about a month i just want to know a little bit about it

Math
If B is the midpoint of line AC, D is the midpoint of line CE, and line AB is congruent to line DE, then AE equals 4AB

math
837 divided by f = 31

Physics
If you lift a 57.7kg box 2.41m over your head, how much work did you do?

algebra
Use the method of substitution to solve the system. xy=1 4x-y+3=0

chemistry
Thank you for all of your help DrBob!!!!

chemistry
When 2.53 g of NaOH(s)(40.0g/mol) dissolves in 100.0 g of water, the temperature of the solution changes from 20 degrees C to 26.3 degrees C. Calculate qrx in KJ/mol specific heat of the solution is 4.18 J/(g*K)

chemistry
When an evacuated glass bulb at 75.0 ml volume is filled with a gas at 25.3 degrees C and 747 mm Hg, the bulb gains 0.0114g. The gas is?

chemistry
What volume will 0.35 mol of Ar occupy at -10 degress C and 0.96 atm?

chemistry
no there is no melting or boliling point given.

chemistry
Ethylene glycol (antifreeze) has a specific heat of 2.42 J/(g*K). Calculate q when 3.65 kg of ethylene glycol cools from 240 degrees C to 78 C

Chemistry
How many L of O2 are produced when 2.53 g of KClO3 (122.55g/mol) reacts at 0.934 atm and 354 K?

Chemistry
We have 250. ml of He at 2.56 atm and 25 degrees C. What is the final volume if we heat the sample to 150 degrees C while we compress the volume to 100. ml

Chemistry
A 0.10 M solution of a weak acid has a pH of 3.5 at 25%C. What is the equilibrium constant, Ka, for this acid?

Chemistry
Thank you !

Chemistry
Phenylcarbinol is used in nasal sprays as a preseriative. A solution of 0.52g of the compound in 25.0g of water has a melting point of -0.36C. What is the molar mass of phenylcarbinol?

English
I think it may be either Hasty generalization or Post Hoc, but I'm not sure.

English
IS this sentence a fallacy? If so what type? If you start out with a bottle of beer a day and then go to a glass or two of wine in the weekends, you're well on your way to becoming a hopeless drunk.

Chemistry
What volume of a 0.600 M solution of AgClO4 is needed to produce 160g of AgCr04?

Chemistry
You made this so easy! Thank you!

Chemistry
What is the molarity of 550.0 mL of KOH solution, that reacts completely with 675 mL of a 0.450 M CrCl3 solution?

Chemistry
Aluminum sulfate reacts with barium chloride to yield barium sulfate and aluminum chloride. What mass of barium sulfate is produced from 650 mL of 0.320 M of aluminum sulfate? Thank you.

pre- calculus
simplify 3x+2y/3y

Math
No it doesn't

Math
A man comes up to play a game. you flip a coin, if heads you win \$1 and keep playing if heads again you get \$2, if you get heads again, \$4 and so on. If you flip tails you take your money and the game is over. How much should he be willing to pay?

Math
100

finance
Can you show me how to do this in excel?

finance
You have credit card debt of \$25,000 that has an APR (monthly compounding) of 15%. Each month you pay minimum monthly payment only. You are required to pay only the outstanding interest. You have received an offer in the mail for an otherwise identical credit card with an APR ...

Critical thinking
Do not guess or jump to conclusions. (In this step, describe how you found if you have the necessary information to proceed. For example, explain how you identified what information is provided and what information must be determined.)

Critical thinking
Do not guess or jump to conclusions. (In this step, describe how you found if you have the necessary information to proceed. For example, explain how you identified what information is provided and what information must be determined.)

Critical thinking
Employ meaningful self-dialogue throughout the process, including written or drawn prompts as well as spoken words. (In this step, explain how you organized the assignment using notes, tables, diagrams and drawings.)

Critical thinking
Focus on the accuracy of the assumptions and conclusions. (In this step, explain how you kept a focus on the assignment to be clear about the requirements. For example, describe how you verified the assignment instructions and scoring guide to make sure everything required is ...

Bus 3004
Demonstrate a positive attitude toward solving a problem. (In this step, explain how you kept a positive attitude as you complete a assignment.)

Bus 3004
compare university online Library and using the Internet

BUS 3004
How credible is Academic Search Premier

BUS 3004
Compose one paragraph that describes your research strategy that you used to find one source in the Capella Library. Your composition needs to be clearly written with descriptive words. Avoid overusing pronouns. Include the following items within the paragraph:

medical
the effect of the patient self-determination act on health care delivery consider how you think records management procedures have had to respond to this piece of legislation

bio
what affect would a very short generation time, such as that of bacteria, have on speciation?

history
out of the three basic necessities - food, shelter, and clothing - which one do you think is the most important for India and other South Asian countries?

Algebra
4-9(2x-3)+7(x-1)

physics
The brightest light detected from the star Antares has a wavelength of about 103 nm. What is the frequency of this light?

Need to find the rule for the following letters: AEFHIKLMN BCDGJOP

poetry
Why does Sylvia Plath decide to behin her poem crossing the water with black and repeats it twice in the first line?

Algebra
d=55t I need to be shown the operations to get the answer. I really don't get this

algebra
d=55t solve for t: help me to understand how to do this

math
I am trying to understand how to translate math questions into an inequality. Here is an example: The cost is at most \$4857.95

Chemistry
the pressure will increase

chemistry lab titration
thank you!! for 25 mL would i still be able to use the h-h equation since k1>10^-5?

chemistry lab titration
so for 0mL added would it be k3 = [(HAsO4^-2)(OH^-)/(AsO4^-)] K3 = (x^2)/(0.1M of AsO4) pk3 = -log k3. then solve for x which would give you [OH^-] which you could use to find pOH and find pH by using pH + pOH = pKw??

chemistry lab titration
I don't understand how I would have to find the pH at 0mL or at 5 mL added or at 10 mL added. are the equivalence points at 10mL, 20mL, 30 mL? and the k3 that you are referring to did you get that from the pK3?

chemistry lab titration
10.0 mL aliquot of 0.100M Na3AsO4 is titrated with 0.100M HCl. pKa1=2.25 pKa2=6.77 pKa3=11.60 Sketch the titration graph by calculating the pH at 0mL, 5mL, 10mL, 15mL, 20mL, 25mL, 30mL, 40mL of HCl.

Finance
NET INCOME BEFORE TAXES OF \$200,000 AND SALES OF \$2,000,000. IF IT IS IN THE 50% TAX BRACKET, WHAT WOULD IT'S AFTER TAX PROFIT MARGIN BE?

geometry
if AB =5x-3and CD=2x+9 find AB

human service 220
well that's all the info. I have on this question

human service 220
How does data and information support human service organizations? When answering this question, address three of the following: · Planning · Operations · Human resources · Technical resources · Financial planning

Accounting
A manufacturing company has to decide between their current process which has a variable cost of \$10/unit and investing in new equipment which will reduce the variable cost to \$5/unit. The new equipment will cost \$100,000. Use a break-even analysis to determine the number of ...

Accounting
A company has a 10% earning on sales before taxes. If material costs are reduced by \$250.000 and everything else remains the same, how much would sales have to increase to earn the same amount?

HSM 220
Does anyone help with this subject?

Sociology
What aspects of the social and work environment in a fast food restaurant would be of particular interest to a sociologist because of his or her sociological imagination?

us history
The English ________ and __________ contributed the concept of LIMITED GOVERNMENT, INDIVIDUAL LIBERTY, REPRESENTATIVE GOVERNMENT, and RULE BY LAW.

English
Trying to help my grandaughter do her homework. Please help! They are learning about verbs in sentences. In the following sentence she is to underline the verb. "My father takes us hiking every Saturday." I am thinking it is "takes" but my daughter thinks ...

Trig
I'm confused on how to determine what the end result angles are for a trigonometric identity (I get how to find the value of sin, cos, etc., and I know how to find the reference angle. I just don't know how to determine further angles from there). For example, 3tan^2x-...

Trig
Sorry for the repeat!

Trig
4sin^2x-1=0 Are the angles 30, 120, and 210 and 300?

Trig
4sin^2x-1=0 Are the angles 30, 120, and 210 and 300?

Trig
tanBeta/(1-cos^2Beta) (sin/cos)times (1/sin^2)=sin/(cossin^2) 1/cossin Is this as far as I can reduce it?

Trig.
tan^2BeatacscBeta-tan^2 (simplify) (sin/cos)^2Beta times 1/sin-(sin/cos)^2 (sin^2/cos^2)-(sin^2/cos^2)=-sin/cos Is this correct?

Trig.
330 degrees?

Trig.
4cosBeta=1+2cosBeta 2cosBeta=1 cosBeta=1/2 60 degrees +/- 180--is this right? I know there should be another answer, but I'm not sure if it needs to be 240 +/-180 or 120 +/- 180. I don't know how to tell if it's added to 180 or subtracted, could you please explain??

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