Saturday
February 13, 2016

Posts by peter

Total # Posts: 948

9th grade biology
peeing liquid diraheea contracting chlorea
January 7, 2010

Algebra 1A
Translate Two dollars plus four cents times the number of minutes in part into a symbolic rule. Use c to represent the total monthly cost and n to represent the total number of long-distance minutes for the month.
December 2, 2009

MAT 116 Algebra 1A
A long-distance telephone plan costs $2.00 a month, plus 4 cents per minutes, or part thereof, for any long-distance call made during the month. Write a verbal rule to determine the total monthly cost for your long-distance calls for the month.
December 2, 2009

Math
12 and 60
November 30, 2009

Trigonometry
What's the easiest way to remember how to draw the graphs for the common trigonometric functions, like sin cos and tan?
November 18, 2009

math
Think of it like a right triangle. The distance horizontally is 4 (from -1 to 3). The distance vertically is 6 (from -1 to -7). You know the formula a^2 + b^2 = c^2 with c being the hypotenuse. Therefore, 4^2 + 6^2 = c^2 and c is the distance between the points. 16 + 36 = c^2 ...
November 18, 2009

chemistry
how to get benzoic acid from a mixture of benzoic acid and salt?
November 14, 2009

Calculus
A spotlight on the ground shines on a wall 12 m away. If a man 2 m tall walks from the spotlight toward the building at a speed of 1.5 m/s, how fast is the length of his shadow on the building decreasing when he is 4 m from the building?
November 8, 2009

Calc
A plane flying horizontally at an altitude of 1 mi and a speed of 510 mi/h passes directly over a radar station. Find the rate at which the distance from the plane to the station is increasing when it is 6 mi away from the station. (Round to the nearest whole number.)
November 8, 2009

Chemistry
a 22.5g sample of (NH4)2CO3 (ammonium carbonate) contains_____ moles of ammonium ions. A. o.468 b. 0.288 C. 0.234 d. 2.14 e. 3.47
November 1, 2009

finance
John Keene recently invested $3,500 in a project that is promising to return 10.75 percent per year. The cash flows are expected to be as follows: End of Cash Year Flow 1 $750 2 800 3 ??? 4 950 Note that the 3rd year cash flow is unknown. Assuming the present value of this ...
October 23, 2009

chemistry
A
October 22, 2009

physics
On a cold winter morning, a child sits on a sled resting on smooth ice. When the 9.10 kg sled is pulled with a horizontal force of 36.0 N, it begins to move with an acceleration of 2.10 m/s^2. The 25.0 kg child accelerates too, but with a smaller acceleration than that of the ...
October 11, 2009

Algebra
When you're breaking down the square root in the quadratic formula into several parts- say it was the originally the square root of 80 so you break it down to square root of 4 and square root of 20-would the results be added or multiplyed? Because I know when you further ...
October 5, 2009

Algebra
A winch is used to tow a boat to a dock. The rope is attached to the boat at a point 15 feet below the level of the winch. Find the distance from the boat to the dock when there is 75 feet of rope out. I got 15^2+75^2=X^2. I put a square root around each side so I got 15+75=X^...
October 5, 2009

Algebra
I'm trying to solve this Pythagorean Theorom problem. x^2+(2x^2)=32^2 which becomes 5x^2=1024 I don't get how the x^2 and the 2x^2 combine to get 5x^2. I think it should be 3x^2. Can you explain? Thanks!
October 5, 2009

8th grade
Direct Variation: when you have a job that pays an hourly wage, the amount you earn varies directly with the number of hours you work. Suppose you earn $7.10/ hour working at the library.
October 3, 2009

Regression
anyone?
September 30, 2009

Regression
HELP Please
September 30, 2009

Regression
1)Price of COke 2)Price of Pizza 3)Price of Beef 4)Quantity of Beef 5)Income 1) List and explain each of the components of you regression model, both the dependent and independent variables 2) list each of the indepedent variables, and hypothesize the sign of coefficients and ...
September 30, 2009

Regression Analysis
-Quantity of Beef -Price of Beef -Price of Pizza -Price of Coke -Income What are the independent and dependent variables with regards to independent hypothesize the sign
September 30, 2009

Regression Analysis
1)Quantity of Beef 2)Price of Beef 3)Price of Pizza 4)Price of Coke 5)Income 1- list and explain each of the components of your regression model, both the dependent variable and the independent variables 2-list each of the independent variables, hypothesize the sign of the ...
September 30, 2009

calculus
is square root x^4-4-y=0 and x^2+y^2=4 a function
September 29, 2009

senior project
How can I do a good senior project about obesity in america? what are some things i can do? how can i do community service about it? what are some other ways i can make it unique and different from others? need more ideas please
September 27, 2009

Math
Hi, I wanted to know how can I donwload "B2K - Badaboom (featuring Fabolous)/Take It To The Floor" file from your site. Where do I click? Thanks.
September 25, 2009

chemistry.
What is the empirical formula of a hydrocarbon that contains 89,94% by mass?
September 25, 2009

chemistry.
What is the empirical formula of a hydrocarbon that contains 89,94 by mass?
September 25, 2009

spanish
how to say todays date in spanish
September 23, 2009

world history
define... 1- assets 2- intervening 3- haciendas 4- nationalization 5- revolution short answer 1- what political and economic factors helped cause the Mexican Revolution ? 2- Explain how the constitution of 1917 tried to resolve some of the problems that started the revolution...
September 14, 2009

Finance
You belong to an unusual pension plan because your retirement payments will continue forever (and will go to your descendants after you die). If you will receive $30,000 per year at the end of each year starting 25 years from now, what is the present value of your retirement ...
September 10, 2009

principles of design
i dont get the principles of design. what are pattern, rhythm, unity, movement, emphasis, contrast, and balence. please help.
September 9, 2009

art
thank you
September 9, 2009

art
i don't get the principles of design.i mean, what does pattern, rhythem, unity, movement, emphasis, and contrast REALLY mean? i am a seventh grader seeking answers and EXAMPLES.
September 9, 2009

Science
Is a Trypanosoma Brucei a Flagellate, Ciliate, Amoeba, or Sprozoan?
July 11, 2009

trig
Solve for X. Leave answers in logarithmic forms. 3^(2-x) = 2^x Thanks.
June 16, 2009

chemistry help
NAME A UNIT OF CONCENTRATION COMMONLY USED TO EXPRESS SMALL CONCENTRARTIONS?
May 18, 2009

chemistry
yes can you just guide me through this one and it will be the last
May 8, 2009

chemistry
A 900.0 g sample of sea water is found to contain 6.7 x 10-3 g Zn. Express this concentration in parts per million?
May 8, 2009

chemistry
A sample of 300.0g of drinking wtare is found to cntain 38 mg Pb. What is this concentration in parts per million?
May 8, 2009

pre calc asap
ok i see now
May 7, 2009

pre calc asap
what do you mean?
May 7, 2009

pre calc asap
what is the domain and range of f(x) =x^2
May 7, 2009

chemistry?
why might we use it??
May 4, 2009

chemistry
this is something like the answer should be
May 4, 2009

chemistry
What is a serial dilution and why might you want to use it?
May 4, 2009

algebra need help
yes thats what I mean
April 30, 2009

algebra need help
Add. 4m^2yp + 6/m^y
April 30, 2009

algebra
Add. 4m^2yp + 6/m^y
April 30, 2009

algebra
Add. 4m^2yp + 6/m^y
April 30, 2009

U.S Constitution
it sets forth laws, justice, peace and people in the future. The people themseleves like you or I are responsible for it. can you tell me more??
April 27, 2009

U.S Constitution
Identify each of the responsibilities the Preamble set forth. Who is responsible for them?
April 27, 2009

chemistry help
Why is hydrogen peroxide very soluble in water?
April 21, 2009

chemistry need help
Contrast ionic and molecular substances in terms of the types of attractive forces that govern their behavior.
April 21, 2009

Chemistry
What would the two half reactions be for 2Na+1MgBr2 arrow 2NaBr + Mg? I don't know how to determine this, other than that you separate the elements for the two half reactions. My other question is that when you're translating words and you have an element with Roman ...
April 19, 2009

history
just take the important things and just talk about it.
April 17, 2009

math6
840
April 16, 2009

Math
I think it's D.
April 16, 2009

Math
I used this equation 7500/120000=150000/x.
April 16, 2009

Math
i got $9,375.
April 16, 2009

CHEM
HCOOH + OH- --> COOH- + H20 Kb = [OH-][HCOOH]/[COOH-] = x^2/(0.0714-x) = 5.55 x 10^-11 x=1.99 x 10^-6 pOH = 5.70 pH = 14 - 5.70 = 8.30 ^ Will that also work?
April 6, 2009

CHEM
Calculate the pH of solution made by combining 75.0 mL of 0.10 M formic acid with 30.0 mL of 0.25 M KOH. (Ka for formic acid, HCOOH, is 1.8 X 10^-4)
April 6, 2009

Chemistry
Calculate the pH of solution made by combining 75.0 mL of 0.10 M formic acid with 30.0 mL of 0.25 M KOH. (Ka for formic acid, HCOOH, is 1.8 X 10^-4)
April 6, 2009

chemistry
(NH4)2CO3 = 2NH3 + CO2 + H2O If you have 3.5 moles of Ammonia how much carbon dioxide was also made?
April 6, 2009

calc
Give 2 positive and 2 negative angles that are coterminal with each angle? 1. 30 degrees 2. 135 degreed 3. -93 degrees
March 31, 2009

calc check these please
1. positive 360 and 390 negative -330 and -360 2. positive 135 and 720 negative -330 and -390
March 31, 2009

calc
Give 2 positive and 2 negative angles that are coterminal with each angle? 1. 30 degrees 2. 135 degreed 3. -93 degrees
March 31, 2009

CHemistry
Kaplan is not acceptable for cheating. This assignment is not hard and it only take 30 minutes if you use your time wisely. So I will not do your work for you.
March 30, 2009

History
How have the lessons learned from the Holocaust changed the world? What do you think has happened and how we are continually surprised when there are bad people doing evil things in the world.
March 29, 2009

chemistry
it has to be a final answer
March 24, 2009

chemistry
1 mol Cu(NO3)2*6H20 X 295.69g Cu(NO3)2*6H20/ mol Cu(N03)2*6H20=___________ gCu(NO3)2*6H20 what does in the blank?
March 24, 2009

chemistry help
can you help with the others as well?
March 23, 2009

chemistry help
Determine the empirical formula for each substance. 1. A dead alkaline battery is found to contain a compund of Mn and O. Its analysis gives 69.6% Mn and 30.4% O. 2. A compound is 38.77% Cl and 61.23 %O. 3. Magnetic iron oxide is 72.4 % iron and 27.6% oxygen.
March 23, 2009

Can someon e please help me (Algebra)
2x(x+2)(x^2 - 2x + 4) = 0
March 16, 2009

Algebra 2
2x(x+2)(x^2 - 2x + 4) set these factors to zero and solve. I would really appreciate it.
March 16, 2009

english
i understand the lighting but i don't get the black fruit
March 15, 2009

english
a metaphor to what
March 15, 2009

english
but what does rain have to do with the poem
March 15, 2009

english
can someone please help me analyze what the black fruit dripping sap from the branches of lighting means in the first stanza thank you Passover: The Injections Clouds pass over, endless, black fruit dripping sap from the branches of lightning. We lie down in the field, ...
March 15, 2009

english
what does the black fruit represent
March 14, 2009

english
i am sorry i am really bad at analyzing poetry could the lighting be the electric fence i don't know
March 14, 2009

english
i can't figure out the first stanza
March 14, 2009

english
can someone please help me analyze this poem thank you Passover: The Injections Clouds pass over, endless, black fruit dripping sap from the branches of lightning. We lie down in the field, thousands of us, never mind the rain. Soldiers come toward us, groups of three or four...
March 14, 2009

literature
if you consider the call of the wild to be an allergory, whichone of the following staements would be true
March 11, 2009

Algebra 2
I would really appreciate help on these equations. 3. Devon tosses a horseshoe at a stake 30 feet away. The horseshoe lands no more than 3 feet from the stake. (a) Write an absolute value inequality that represents the range of distances that the horseshoe travels. (b) Solve ...
March 10, 2009

Algebra 2
please please please help
March 10, 2009

ALGEBRA 2
would really appreciate help on these equations. 3. Devon tosses a horseshoe at a stake 30 feet away. The horseshoe lands no more than 3 feet from the stake. (a) Write an absolute value inequality that represents the range of distances that the horseshoe travels. (b) Solve the...
March 10, 2009

ALgerba 2
I would really appreciate help on these equations. 3. Devon tosses a horseshoe at a stake 30 feet away. The horseshoe lands no more than 3 feet from the stake. (a) Write an absolute value inequality that represents the range of distances that the horseshoe travels. (b) Solve ...
March 10, 2009

Future/Present Value Problems
B) Immediate Bonus= 40,000 Deferred Bonus= 70,000 payable in 10 yrs, relevant interest rate is 8%.. (ignore tax considerations) Which form of settlement should be accepted 70,000/10=7000 per yr 7000*.08=560 7000-560=6640 6640*10=66400 Is that right?
February 25, 2009

Future Value/Present Value Problems
A) Serene Williams Corporation having recently issued a 20 million, 15 year bond issue, is committed to malke annual sinking fund deposits of 600,000. The deposits are made on last day of eac year and yield a return of 10%. Will the fund at the end of 15 yrs be sufficient to ...
February 25, 2009

stats!
Abe looked at fundraising over the last decade. In the six seasons where the football team won less than 40% of the games (losing seasons) Abe was only able to raise an average of $1.2 million in contributions to the Athletic Department (adjusted to today’s dollars). In ...
February 12, 2009

Stats HELP!!
The Athletic Director at a major Midwestern University, Biff Barnhart, is about to lose another night’s sleep over the school’s ailing football team. The Beagles have just finished their 3rd consecutive losing season. At a bit past 1 AM he took another call from Ian...
February 9, 2009

stats!! Help long question lots of reading
Coach williams First- winning Season-88% Second- Winning Season-94% First- Winning Season 88% Second- Losing Season 1% First-neutral 10% Second-Win (88) Lose(10) Neutral (2) First Lost 10% Second win 1% First Lost 10 Second Lost 30 Is that right for the first coach at all?
February 9, 2009

stats!! Help long question lots of reading
The Athletic Director at a major Midwestern University, Biff Barnhart, is about to lose another night’s sleep over the school’s ailing football team. The Beagles have just finished their 3rd consecutive losing season. At a bit past 1 AM he took another call from Ian...
February 9, 2009

chemistry
what are you talking about this is someone, else
February 9, 2009

chemistry
how do you balance this equation K2SO4 + Ca(NO3)2 -> CaSO4 + KNO3
February 9, 2009

english need help asap
7. In Song of Myself, number 33, Whitman personifies death as something chasing a ship. This figure of speech — In Song of Myself, number 33, Whitman personifies death as something chasing a ship. This figure of speech —   a. suggests that the victims were ...
February 9, 2009

chemistry need help asap!!!!!!
can you display how to do the first then i could catch on.
February 8, 2009

chemistry need help asap!!!!!!
can you balacne theses Ag2O -> Ag + O2 C6H6 +O2 -> CO2 + H2O Al2O3 + C -> Al + CO2
February 8, 2009

chemistry need help asap!!!!!!
no i dont think so
February 8, 2009

chemistry need help asap!!!!!!
How do you balance these chemical equation? o Fe2O3 + 3H2 → 2Fe + 3H2O o 4NH3 + 5O2  → 4NO + 6H2O
February 8, 2009

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