Saturday
April 19, 2014

Posts by Amber


Total # Posts: 1,022

Algebra II
Solve 1. 3x^2-9x=0 2. 12x^2+30x=-12 3. 9a(a+1)=4 4. 16x^2=25

Health Psychology
Ok, thank you. I believe I also need to add one more psychologist to the list, making it 5 different psychologists, but I was under the impression I only had to assign 1 job to each. Thank you for clearing this up for me. This helps so much to get a second out look. :)

Health Psychology
I want to make it clear that I do not want any answers to the project I am about to post on here. I only need help understanding it a little. I am trying to get online to speak with my professor but our school site is down at the moment. I think I know what I am doing, I just...

physics
a spring has a force constant of 20000 N/m how far must it be strectched for its potential energy to be 43 J??

college algebra
2/5(5x-3) - 1/3(12x-5). Have the correct answer but need someone to show me how to solve for it.

Algebra
Elena bicycles 4 km/h faster than Robert. In the same time it takes Robert to bicycle 27km/h, Elena can bicycle 39 km. How fast does each bicycle travel?

chemistry
Use the standard reaction enthalpies given below to determine ΔH°rxn for the following reaction: 2 NO(g) + O2(g) → 2 NO2(g), ΔH°rxn = ? Given: N2(g) + O2(g) → 2 NO(g), ΔH°rxn = +183 kJ 1/2 N2(g) + O2(g) → NO2(g), ΔH°rxn = +...

chemistry
According to the following thermochemical equation, what mass of H2O (in g) must form in order to produce 975 kJ of energy? SiO2(s) + 4 HF(g) → SiF4(g) + 2 H2O(l), ΔH°rxn = -184 kJ

chemistry
A 4.98 g sample of aniline (C6H5NH2, molar mass = 93.13 g/mol) was combusted in a bomb calorimeter with a heat capacity of 4.25 kJ/°C. If the temperature rose from 29.5°C to 69.8°C, determine the value of ΔH°comb for aniline.

5th grade math
If you roll two number cubes numbered 1-6, what is the probability of rolling the same number on each cube?

English
I need help writing a paragraph using these words. Retrospect, Inane, Squelch, Subsidize, and Lethargy.

biology
what school you go to

Chemistry
Given the equilibrium: CO + 2H2 = CH3OH H=-18.0kJ How will the concentration of CO at equilibrium be affected by the following? a) Adding more CH3OH b) Removing some H2 c) Reducing the temperature. I don't understand how i'm supposed to figure these out.. please help!

Chemistry 12
Why doesn't stirring not affect solution equilibrium??

Chemistry
OMG Doctor Bob you are a huge help! And you right i did have that a dozen times lol but i wasn't sure if i had it right because i couldn't het the last part to work out for me! But i have it now so thanks a bunch!

Chemistry
Balance the following redox equation by the oxidation number methode Ag + HNO3 = AgNO3 + NO + H2O I have all the oxidation numbers i just don't understand how i'm supposed to balance it according to them. I read the sites and i can't get it. Do i balance out each s...

english
Can you fix this sentence? "When the movie Star Wars premiered in 1977, it was both surprising and a revolution in its special effects."

chem
i have all the oxidation numbers for all the of elements but i don't understand how i'm supposed to balance the equation using the oxidation numbers. Do i have to to change the oxidation numbers to equation the same on each side?

chem
Balance the following redox equation by the oxidation number methode Ag + HNO3 = AgNO3 + NO + H2O

chem
How many grams of potassium permanganate (KMnO4) should be added to a 100 mL volumetric flask to prepare a 0.02505 M solution when the flask is diluted to the mark with water?

trig
how do you graph y=-(1/4)sin(3/4x+pi/8? include the amplitude, period, vertical translation, horizontal shift, and table of values please.

finite math
i used x instead of t. thanks

finite math
As online attacks persist, spending on information security software continues to rise. The table gives the forecast for the worldwide sales (in billions of dollars) of information security software through 2007 (t = 0 corresponds to 2002): Year, t 0 1 2 3 4 5 Spending, y 6 8....

finite math
thanks sooooo much!

finite math
Kane Manufacturing has a division that produces two models of hibachis, model A and model B. To produce each model-A hibachi requires 3 lb of cast iron and 6 min of labor. To produce each model-B hibachi requires 4 lb of cast iron and 3 min of labor. The profit for each model-...

finite math
(281.82-250)*48?

finite math
i got $198.87 what about the interest charges?

finite math
The price of a new car is $16,000. Assume that an individual makes a down payment of 25% toward the purchase of the car and secures financing for the balance at the rate of 6%/year compounded monthly. (Round your answers to the nearest cent.) What monthly payment will she be r...

finite math
i put 5.78% and it says it's wrong.

finite math
Carlos invested $6,000 in a money market mutual fund that pays interest on a daily basis. The balance in his account at the end of 8 mo (245 days) was $6,230.23. Find the effective rate at which Carlos's account earned interest over this period (assume a 365-day year). (Ro...

geometry
how to solve y= (x-2)^2+4 4x+2y=14 algebraically

English
thanks

English
My cpu is not letting me view this page

English
What would you say this line ment: I am the chosen no hand saves?

Program planning and evaluation
I dont know

chemistry
What is the mole fraction of sulfuric acid in a solution made by adding 3.4 grams of sulfuric acid to 3500 mL of water?

chemistry
how many grams of glucose C6H12O6 would you need to make 250 mL of 1.0 M solution?

chemistry
how many moles of sucrose C12H22O11 does 300mL of a 0.10 M sucrose solution contain?

ah trig help
use an apropriate sum or difference indentity to prove the double-angle identity cos2u=1-2sin2u

trig identies 5.3 &5.4
i got it nevermind

english
an ode

US History
1. Which three amendments that were passed almost 100 years earlier, guaranteed that African-Americans had the right to vote? 2. Why was the Voting Rights Act of 1965 necessary? 3. Name three ways that local jurisdictions tried to inhibit African-Americans from voting prior t...

chemisrty
2 HClO4(aq) + Ca(OH)2(aq) → 2 H2O(l) + Ca(ClO4)2(aq)

Chemistry
At which temperature will the following reactions reverse? Use the thermodynamic date provided at the end of the book. a) 2Ca(s) + O2(g) -> 2CaO(s) b) 2CH4(g) + 4 O2(g) -> 2CO2(g) + 4H2O(g)

Chemistry
The trick is that the heat lost from the metal is equal to the heat gained by the water. So q lost = f gained. Since the metal went from 100.0C to 32.5C I'd say it lost. The water went from 20.0C to 32.5C, so it gained. "q" then represents the metal and "f&q...

chemistry
Is it possible to produce a form of sodium ferrate using these components? FeCl3 NaOH NaOCl

English
A critic should read a story more than once in order to write about it. True or False.

Math
Postal regulations specify that a package sent by priority mail may have a combined length and girth of no more than 129 in. Find the dimensions of a cylindrical package with the greatest volume that may be sent by priority mail. Hint: The length plus the girth is 2πr + l...

5th Grade Math/Making a Duplicate
a canoe is 5.67 how much is it in cm

Chemistry
At a particular temperature, K = 3.75 for the following reaction. SO2(g) + NO2(g) <==> SO3(g) + NO(g)\ If all four gases had initial concentrations of 0.550 M, calculate the equilibrium concentrations of the gases.

math
(x/4−1/x)/(1/2x+1/4)

Physics
A sled of mass 5.98 kg is coasting along on a frictionless ice-covered lake at a constant speed of 1.42 m/s. A 1.98-kg book is dropped vertically onto the sled. At what speed does the sled move once the book is on it?

geometry
How do I solve this? 4/3PI*R^3 When R=6 I get 288 if I do it in PI form. Just seems really high.

Alegebra
i have 5 questions, i dont know how to solve these questions. 7= 2 +5(z-2) 15(s-3)=12s-43 2a-6=3(a-4) 2(b-3)+5=3(b-1) 6x +7 / 5 = x

Literature
1. supernatural 2.imagination 3.everyday occurrences 4.emotional freedom 5.individual freedom 6.love of nature if you're in Brit Lit for the American School like i am... i found the answer in the definition of Romanticism in the back of the Study Guide

Algebra
A brick staircase has a total of 16 steps The bottom step requires 112 bricks. Each successive step requires 4 fewer bricks than the prior one. How many bricks are required to build the staircase?

Geometry
Find the perimeter of a square to the nearest tenth if the length of its diagonal is 16 millimeters

Physics
If you do work on an object in 1/3 the usual time, your power output is ____ times the usual power output

Physics
The work done on an object with a mass of 50 kg raised 3 meters is ________ Nm.

Physics
Two identical gliders slide toward each other on an airtrack. One moves at 1 m/s and the other at 2 m/s. They collide and stick. The combined mass moves at ____ m/s. Answer

Physics
A 2 kg ball rolls at 2 m/s toward a 1 kg ball at rest. After the balls collide they stick together and move at _____ m/s.

Physics
The kinetic energy of a 4 kg object moving at 3 m/s is _______ J.

Physics
The momentum of a 5 kg thrown 3 m/s is _________ kg m/s.

Physics
A 18 N object moves 1 m/s.  Its KE is ______ J.

Physics
____ N of work are done on your physics text when you carry it horizontally across a 15 meter wide room.

Alegbra sequences
Year 2003 2004 2005 2006 Populatation 22.12 22.49 22.86 23.41 A. divide the population for each year by the population in the preceeding year. Round to the two decimal places and show the Texas population increase that is approximately geometric. 1.01 B. Write the general term...

medical
I. AMBULATORY CARE FACE SHEET Admit Date: 7/8/20XX @ 20:22 Discharge Date/Time: 7/9/20XX @ 10:10 Sex: M Age: 47 Disposition: Home Admitting Diagnosis: Possible esophageal foreign body. Discharge Diagnosis: Esophageal foreign body. Procedures: EGD with foreign body removal. CON...

Math
10+10=20 5.29/20=0.2745 4+4=8 2.98/8=0.3725 The better deal is the one pack of 10 for $5.49 and get one free

college algebra
Find the maximum value of 5x + 7 – x2 on the horizontal span of 0 to 5. (Enter the maximum value of the expression, not the value of x at that point.)

college algebra
If an average-size man with a parachute jumps from an airplane, he will fall 12.5(0.2t - 1) + 19t feet in t seconds. How long will it take him to fall 134 feet?

ALGEBRA 1
Cindy will require $15,000 in 2 years to return to college to get an MBA degree. How much money should she ask her parents for now so that, if she invests it at 12% compounded continuously, she will have enough for school?

algebra 1 sequences
Year 2003 2004 2005 2006 Populatation 22.12 22.49 22.86 23.41 A. divide the population for each year by the population in the preceeding year. Round to the two decimal places and show the Texas population increase that is approximately geometric. 1.01 B. Write the general term...

Algebra
Jennifer takes a job with a starting salary of $39,000 for the first year with an annual increase of 5% beginning in the second year. What is Jennifer's salary, to the nearest dollar

chemistry
Describe how to make 20 mL of a 6.0 % solution from a stock solution with a concentration of 10 %.

Algebra
Find the accumulated value of an investment of $5000 at 5% compounded monthly for 8 years.

algebra
If p(t) is the profit (in dollars) that I expect my business to earn t years after opening, use functional notation to express my expected profit after 4 years and 6 months.

Algerbra 2
I am doing a worksheet for my alg. 2 class and in the worksheet it says: 'Simplify the expression. Assusme all variable are positive.' the problem is perentheses, square root of six times the power of 3 square root of six perentheses power of six!

STATISTICS
Private college and universities rely on money contributed by individuals and corporations for their operating expenses. Much of this money is put into a fund called an endowment, and the college spends only the interest earned by the fund. A recent survey of eight private col...

american literature
list three rhetorical devices that patrick Henry uses in his "speech in the virginia convention." Give an example from the speech of each rhetorical device.

literature
thanks for the help

PHY
Ok...I know this is a stupid question, but I need help! Ok, here it is: An object that has more electrons than it does protons will be _____ a CL^-1 ion. repelled by attracted to unaffected by I know that opposites attract and that same repells, but I am doubting myself with t...

Physics
I have been working on my Phys homework and came accross this question that is giving me some trouble: The charge (coul) on an object increases according to (q) = (2 coul)e[(0.050/sec)(t)], where t is in seconds. At how many seconds is the object deficient 1.56 x 10^20 electro...

Random Question
Ok thank you.

Random Question
In the movie "Hauting Sarah" what is the twin sister trying to accomplish??? bringing her son back through her sister?

Physics
A certain "brand-new" (never-used) 9.0 volt cell contains 40mC of charge. The Electric energy "stored" in the cell amounts to about (___) joules. 0.0 0.06 37.5 .36 60x10^-4 I'm not too sure how to figure this problem out. I initially thought 40/9, but t...

math
Angelo is paid double time for each hour he works over 40 hours in a week. Last week he worked 46 hours and earned $520. What is his normal hourly rate?

Calculus I
evaluate and justify each step lim((xe^x)/tan x) as x approaches 1. i just need the over all jest of the problem because i don't know what to do to get rid of the 0 in the denominator. Thanks.

physics
a student does 314 J of work in moving a desk 2.1 m. What was the magnitude of the applied horizontal force?

CP Geometry
Working with square roots (s.r.) and need help. - s.r. 60/5 This is negative s.r. 60/5

CP Geometry
it was a riddle. the answer was a jab well done.

CP Geometry
What do you call it when the nurse gives you a shot you hardly feel? s.r. = square root s.r.5 * s.r. 15. my choices are 5s.r.3, 20s.r.5, 4s.r.10, 3s.r.2, 3s.r.10, 2s.r.6, 9, 5s.r.6, 10s.r.3.

Chemistry
If the equilibirium reaction is 2 03(g) <--> 3 O2 9(g) is first order with respect to ozone, what type of plot( meaning what is plotted on the y axis vs what is plotted on the x-axis) will yield a straight line? what will the slope of the line represent? PLEASE help im s...

Chemistry
Sorry I typed it wrong i meant IF the rate of consumption of N2O4 (below) is .0221 what is the rate of production of NO2?

Chemistry
IF the rate of consumption of N2)4 (below) is .0221, what is the rate of production of NO2? N2O4(g)<->2NO2(g) Please help and explain. BC i have to actually understand how to do the problem. Thanks

Comm215
In this problem: Sally told Janice that she made the honor role. __ Pronoun shift in number __ Pronoun shift in person __ Ambiguous reference __ No error What does ambiguous reference mean?

math
If you borrow $5,000 at an APR of 5%. Find the interest, I after 36 months

Math
5% interest rate for 5,000,00 how much after 4 years

physics
A 10kg block is sliding at 10m/s along a frictionless track which suddenly curves straight up. how high will the block rise

7th Grade Math-Exponents
I dont understand this at all! Please help! Find the units digit for 7^197 without using a calculator. Explain how you found your answer.

Math-7th grade
that makes sense...thanks!

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