Friday
May 29, 2015

Posts by Megan


Total # Posts: 974

Spanish
I have two questions about translation. If asked this question, how do I answer it. Cual es tu numero de telefono? I know it is asking my phone number which is 447-7161 but I don't know how to put it in sentence form. The next question is Que te gusta hacer el sabado? I ...
October 13, 2010

physics
Suppose the water near the top of Niagara Falls has a horizontal speed of 2.7 m/s just before it cascades over the edge of the falls. At what vertical distance below the edge does the velocity vector of the water point downward at a 72° angle below the horizontal?
October 13, 2010

Computers
How to do Excel Spreadsheet- Formulas? I have to do an excel spreadsheet for my computer class. Problem is my professor didn't at all explain how to do it. What formulas am I supposed to use! Please Help. The info he gave us are : Cash Sales: 56%, Rec. Last month: 28%, Rec...
October 13, 2010

Algebra-Please help-I'm desperate to understand
Posted by Megan on Tuesday, October 12, 2010 at 3:44pm. I have a question if someone could help, please explain it. Given b = -1 and h = -1, what is the equation of the graph if the parent function of the radical is y = square root (x) The x should be under a square root sign...
October 12, 2010

Algebra-drwls please check!
Hi, no I just checked this-all they wanted was what a (-b) qunatity and a negative (h) quantity would do to the parent function- like how it would be written If you had the parent function y = square root of (x)-how a negative b and negative h would affect it
October 12, 2010

Algebra-drwls please check!
Posted by Megan on Tuesday, October 12, 2010 at 3:44pm. I have a question if someone could help, please explain it. Given b = -1 and h = -1, what is the equation of the graph if the parent function is y = sqrt (x) Answers: a.y = sqrt(x-1) b.y = sqrt (-x+1) c.y = - sqrt (-x-1) ...
October 12, 2010

Algebra drwls please check
Can you please check my problem Thank you
October 12, 2010

Algebra
I have a question if someone could help, please explain it. Given b = -1 and h = -1, what is the equation of the graph if the parent function is y = sqrt (x) Answers: a.y = sqrt(x-1) b.y = sqrt (-x+1) c.y = - sqrt (-x-1) d.y = sqrt(-x-1) I think it is "b"
October 12, 2010

Geometry
the measure of the supplement of an angle is 40 more than two times the measure of the complement of the angle find the measure of the angle
October 11, 2010

AP CHEM
19. Burning coal and oil in a power plant produces pollutants such as sulfur dioxide, SO2. The sulfur-containing compound can be removed from other waste gases, however, by the following reaction: 2 SO2(g) + 2 CaCO3(s) + O2(g)  2 CaSO4(s) + 2 CO2(g) [Molar masses: 64....
October 7, 2010

Chemistry :(
Disulfur dichloride, S2Cl2, is used to vulcanize rubber. It can be made by treating molten sulfur with gaseous chlorine: S8(l) + 4 Cl2(g) --> 4 S2Cl2(l) [Molar masses: 256.6 70.91 135.0] Starting with a mixture of 32.0 g of sulfur and 71.0 g of Cl2, which is the limiting ...
October 7, 2010

Chemistry
Calculate the pH, to one decimal place, of the solution made by mixing 21.0 mL of 0.33 M HNO3 with 121.0 mL of 0.32 M formic acid (HCOOH)
October 7, 2010

Chemistry
Experiment 10: Which Fuels provide the most heat? There are many possible sources of error in this experiment. List three that you can think of. Would each error have a large effect, a medium effect, or a small effect on the calculated heat content of a fuel? Also indicate ...
October 7, 2010

Chemistry!
Experiment on Which Fuels Provide the Most Heat? Comparison of the Energy Content of Fuels. Suppose you put 50 mL of water in the can instead of 100 mL and heated it 40 degrees instead of 20 degrees. In what ways, if any, would this affect the results of the experiment? What ...
October 7, 2010

Chemistry
The arrow goes after the C6H5CH2COOH
October 4, 2010

Chemistry
OH- + C6H5CH2COOH H2O + C6H5CH2COO- What is the K for the reaction above in terms of Ka's, Kb's, Kw etc.?
October 4, 2010

Chemistry
H- + C6H5CH2COOH = H2O + C6H5CH2COO- What is the K for the reaction above in terms of Ka's, Kb's, Kw etc.?
October 4, 2010

science
At -8 degrees celseis what state is bromime in?
October 2, 2010

physics
What average force is needed to accelerate a 6.00-gram pellet from rest to 110 over a distance of 0.800 along the barrel of a rifle?
September 24, 2010

Science
3. constant angular velocity When a rigid body is being rotated, every particle within the body will rotate in the same direction, while retaining its original shape. The omega(angular velocity) will remain the same.
September 20, 2010

chemistry
yes, it really does help. How did you decided that it absorbed heat? I though exothermic reactions released it.
September 19, 2010

chemistry
I don't understand how you decide what is increasing or decreasing and how you tell.
September 19, 2010

chemistry
2 NO2(g) N2(g) + 2 O2(g) The ΔH° for the reaction above is -66.4 kJ. The system is initially at equilibrium. What happens if N2 is added to the reaction mixture at constant temperature and volume? The reaction absorbs energy. The reaction releases energy. [NO2] ...
September 19, 2010

Chemistry
H2(g) + I2(g) 2 HI(g) The forward reaction above is exothermic. At equilibrium, what happens if I2 is removed from the reaction mixture at constant temperature and volume? The reaction absorbs energy. The reaction releases energy. [H2] increases. [H2] decreases. [H2] remains ...
September 19, 2010

Chemistry
Find the volume in liters of 0.452 M manganese(II) sulfate that contains 54.5 g of solute?
September 19, 2010

college-history
What parallels, or differences, can you identify between Athenian expansionism in the age of the Peloponnesian War and the contemporary career of the American republic?
September 18, 2010

pre cal
Use synthetic division to show that x is a solution of the third-degree polynomial equation, and use the result to factor the polynomial completely. List all the real zeros of the function. x^3 - 28x - 48 = 0 Value of x = -4 Please help!!Thank you
September 17, 2010

physics
If your car decelerates at a rat of 4.5 m/s2 how long will it take for your car to stop?????
September 14, 2010

chemistry
is INH(CH3)3 an acid, base or neutral?
September 14, 2010

math 5 grade
which x = 300 a 2x30 x6 b 10x6x20 c15x2x10 d 2x3x15
September 13, 2010

math
leon rents a video for $5. he returns the video game 3 days late. the late fee is $1 for each day late.simplify the expression 5+3.1 to find out how much it costs leon to rent the video game
September 10, 2010

Chemistry
If you are making 180.0 mL of 3.00% (m/m) CuSO45 H2O, how many grams of the solute should you use? I can't figure out what to do with the percent.
September 8, 2010

chemistry
Suppose you are given a list of solutions (all with nonvolatile solutes) and their concentrations. You pick out the one with the lowest freezing point. It should also have (pick all that apply): the lowest boiling point the highest osmotic pressure the lowest solvent vapor ...
September 8, 2010

Spanish
Why do the stem changing forms for -zer and -cer have special endings??
September 7, 2010

Spanish
Why do the stem changing forms for -zer and -cer have special endings??
September 7, 2010

Chemistry
A reastion consumes 5.0g of A and 6.0g of B. How many grams of C and D should be obtained? 1A + 3B -> 2C + 4D MC answers: 23 11 1 10 Not enough information to answer the question
September 6, 2010

Chemistry
A reastion consumes 5.0g of A and 6.0g of B. How many grams of C and D should be obtained? 1A + 3B -> 2C + 4D MC answers: 23 11 1 10 Not enough information to answer the question
September 6, 2010

English
I need to find the present progressive teses of the words lie, lay,awake
August 28, 2010

math
The sum of my ones and tens digit is 10. My tens digit is greater than my ones digit. I am a prime number. What number am I? I think it is 19
August 24, 2010

11th grade Chemistry 1
If your weight is 120 pounds and your mass is 54 kilograms, how would those values change if you were on the moon? The gravitational force on the moon is 1/6 the gravitational force on Earth.
August 24, 2010

8th grade
Initial observation- is the beginning of your observation and your observation of the whole subject. Independent Variable- is the variable that you change in an experiment. Dependent Variable- is the variable that changes due to the reaction of the independent variable. Keep ...
August 24, 2010

science
H.) A farmer planted a field of Bt 123 corn and wants to estimate the yield in terms of bushels per acre. He counts 22 ears in 1/1000 of an acre. He determines that each ear has about 700 kernels on average. He also knows that a bushel contains about 90 000 kernels on average...
August 8, 2010

ART
*have
August 5, 2010

ART
I need help with the interior and exterior plan of Chartres. The textbook makes its seem so complicated. I can't answer the question. BTW, I didn't post the entire assignment just the two questions I had trouble with.
August 5, 2010

ART
1. Pretend that you are entering Chartres cathedral through the central portal. You want to get to the apse. What parts of the plan might you traverse in order to get there? Describe what you will see on the way. Hint: There are six architectural features grouped into three ...
August 5, 2010

chemistry
A 1 m solution of MgCl2 will cause the decrease in the freezing point of water to be approximately ___ than that caused by a 1 m solution of sucrose a. 3x kleiner/ 3x smaller b. 2x kleiner / 2x smaller c. dieselfde / the same d. 2x groter / 2x greater e. 3x groter / 3x greater...
August 1, 2010

Chemistry
How many calories of heat are needed to raise 10 g water from 20 to 21 degree celcius
July 22, 2010

english 2
where can i find critiques for the poems "Sometimes Words are So Close" and "Ironing Their Clothes" by julia alvarez?
June 27, 2010

Human Biology
For a portion of Junior year next year, we're supposed to build a human skeleton out of anything we can find. So most people build them out of styrofoam or clay. Do you think building a skeleton out of twigs would be creative and/or relatively easy? Someone did a really ...
June 24, 2010

math
Factor the following. You will earn 5 points for each polynomial that is factored correctly. Please label your individual answers with a - f. a.) 4x2 - 25 b.) 3x2 + 6y c.) x2 - 7x + 10 d.) 2x2 - 9x - 18 e.) 2ax + 6bx + ay + 3by f.) 6x2 + 12x - 48
June 23, 2010

math
at the veterinarian's office terri learned that her dot weighed 4 times as much as her cat. together the pets weighed 40 lbs. how much did the dog weigh
June 22, 2010

algebra
We just learned equations & inequalities today and im so confused on how to do it!will someone help me??? -5 + 2 < -2
May 20, 2010

Chemistry
I NEED TO KNOW ASAP what a Keq is and what the formula of it would be.
May 17, 2010

HEALTH
TWO LETTER WORD FROM EDCIRLUSEEAM RELATING TO HEALTH CARE WEEK
May 12, 2010

Chemistry
I really don't know how to approach this problem and I really need help. Using the average molarity of your initial acetic acid solutions, the initial volumes, and the volume of NaOH added to reach the equivalence point, calculate the [C2H3O2-] concentration at the ...
May 6, 2010

Chemistry
An unknown compound analyzes to be 42.85% C, 7.20% H, and 49.95% N. A 0.915 g sample of the gas occupies 250. mL at 760. mm Hg and 100.°C. Type your answers using the format CH4 for CH4. Enter the elements in the order given. I have calculated the emperical formula to be ...
May 2, 2010

Chemistry
To what Celsius temperature must 44.5 mL of methane gas at 43.0°C be changed so the volume will be 63.0 mL? Assume the pressure and the amount of gas are held constant. I have already tried T1V1=T2V2
May 2, 2010

Chemistry
NH3(g) + O2(g) NO2(g) + H2O(g) Consider the above unbalanced equation. What volume of NH3 at 950. mm Hg and 33.5°C is needed to react with 190. mL of O2 at 485 mm Hg and 143°C? =? mL
May 2, 2010

Chemistry
To what Celsius temperature must 44.5 mL of methane gas at 43.0°C be changed so the volume will be 63.0 mL? Assume the pressure and the amount of gas are held constant.
May 2, 2010

Chemistry
Which of the following increase the melting point of an ionic compound? decreased charge on the ions increased size of the ions increased charge on the ions decreased size of the ions increased amount of the compound
April 28, 2010

Chemistry
What effect does lowering the pressure on the surface of water have on the boiling point? It increases the boiling point It decreases the boiling point the boiling point remains the same
April 28, 2010

Chemistry
As ice melts at standard pressure, its temperature remains at 0°C until it has completely melted. Its potential energy: increases decreases remains the same
April 28, 2010

calculus
Consider the infinite series of the form: (+/-)3(+/-)1(+/-)(1/3)(+/-)(1/9)(+/-)(1/27)(+/-)...(+/-)(1/3^n)(+/-)... (A) Find x and y from: x(</=)(+/-)3(+/-)1(+/-)(1/3)(+/-)...(</=)y.
April 24, 2010

calculus
Consider the infinite series of the form: (+/-)3(+/-)1(+/-)(1/3)(+/-)(1/9)(+/-)(1/27)(+/-)...(+/-)(1/3^n)(+/-)... (A) Find x and y from: x(</=)(+/-)3(+/-)1(+/-)(1/3)(+/-)...(</=)y. (B) Can you choose the signs to make the series diverge? (C) Can you choose the signs to ...
April 22, 2010

calculus
Consider the infinite series of the form: (+/-)3(+/-)1(+/-)(1/3)(+/-)(1/9)(+/-)(1/27)(+/-)...(+/-)(1/3^n)(+/-)... (A) Find x and y from: x(</=)(+/-)3(+/-)1(+/-)(1/3)(+/-)...(</=)y. (B) Can you choose the signs to make the series diverge? (C) Can you choose the signs to ...
April 22, 2010

Calculus
Consider the infinite series of the form: (+/-)3(+/-)1(+/-)(1/3)(+/-)(1/9)(+/-)(1/27)(+/-)...(+/-)(1/3^n)(+/-)... (A) Find x and y from: x(</=)(+/-)3(+/-)1(+/-)(1/3)(+/-)...(</=)y. (B) Can you choose the signs to make the series diverge? (C) Can you choose the signs to ...
April 21, 2010

12th grade agebra 2
for the first one, all real roots are 2, -2, and the square root of 2. i'm not sure of the second one. hope this helps.
April 20, 2010

Chemistry
How do I decide whether something is polar or not?
April 15, 2010

Chemistry
When the Kelvin temperature of an enclosed gas doubles, the particles of the gas ____. a) strike the walls of the container with less force b) move faster c) decrease in volume d) decrease in average kinetic energy
April 14, 2010

Chemistry
nevermind, the temperature increase
April 14, 2010

Chemistry
What happens to the temperature of a gas when it is compressed?
April 14, 2010

math 221
1. Using Excel, find the z-score that corresponds to the following Confidence Levels: a. 80% b. 85% c. 92% d. 97% 2. Using Excel, find the t-score that corresponds to the following Confidence Levels and Sample Sizes: a. 95% with n = 25 b. 96% with n = 15 c. 97% with n = 21 d. ...
April 6, 2010

chemistry
For each trial, enter the amount of heat gained by the chemical system of ammonium nitrate, qrxn. The specific heat of water is 4.184 J/goC. Report your answer using 4 digits. The information given is: Trial # Tiwater Tf Masswater #1: 21.2 10.8 24.990 #2: 20.8 9.50 25.000 #3: ...
April 6, 2010

Chemistry
Which of the following electron configurations represent an excited state? 1s22s22p1 1s22s22p63s2 1s1 1s22s12p63s1 1s12s22p63p3 1s22s22p23d1 1s22s22p64s1
April 1, 2010

math
your first step is to isolate b. to do that, you minus 17 from both sides. so you'd get 5b = (8-17). (do the work yourself, it's pretty simple). so you have 5b still, and your goal is to isoalte b. so you'd divide 5b by 5. and if you do that, you have to divide the...
March 31, 2010

Statistics for Decision
2.22/84 3.53/84 4 57/84=0.6785 5.18/84 6.18/21 8. indepent high cal have 18/84 and high fiber have 53/84
March 27, 2010

Statistics for Decision
Calorie Level Fiber Type High Calorie Low Calorie Totals High Fiber 18 4 22 Medium Fiber 23 6 29 Low Fiber 12 21 33 Totals 53 31 84 1. What is the probability that the cereal would be high calorie? In other words, what is P(high calorie)? 2. What is the probability that the ...
March 27, 2010

Chemistry
If 20.00mL of a solution that contains oxalate ion requires 10.00mL of 0.020M MnO4- solution in a titration, what was the molarity of the oxalate solution? 5C2O42- + 2MnO4- + 12H+ --> 2Mn2+ + 10CO2 + 8 H2O
March 23, 2010

Chemistry
How do I find the emperical formula of 16.9% Fe3+ 39.7% C2O42- 43.4% H2O
March 23, 2010

4th Grade Math
Ms. Ross's class has 24 students.2/3 of her students have brown hair.The rest have blonde hair.How many students have blonde hair?
March 23, 2010

3rd grade math
Write an expression that equals 468 that includes a combination that adds up to 100
March 16, 2010

chemistry
How many miles of sodium hydrogen carbonate would be needed to react with 150.0 g of sulferic acid?
March 10, 2010

college chem
1.43e2
March 9, 2010

Chemistry
If 15.0 kJ are released when 1.40 g of F2 reacts with an excess of SiH4, complete the thermochemical equation below. SiH4(g) + 2 F2(g) SiF4(g) + 4 HF(g) ÄHrxn = ?kJ
March 8, 2010

Chemistry
Several of my classmates and I use this website. I use my own name.
March 8, 2010

Chemistry
94.0 g of a metal at 88.0°C are added to 55.0 g of water at 26.0°C. When the system reaches constant temperature, the temperature is 39.3°C. What is the specific heat of the metal? The specific heat of water is 4.184 J/g·°C.
March 8, 2010

Chemistry
What is the specific heat of a substance if 35.5 kJ are required to raise the temperature of 345 g of the substance from 69.0°C to 150.0°C?
March 8, 2010

Chemistry
Copper has a specific heat of 0.387 J/g·°C. How much energy is required to raise the temperature of 140. g of copper from 17.5°C to 154.0°C?
March 8, 2010

Chemistry
A 5.80 g sample of SiH4 and an excess of oxygen were placed in a reaction container surrounded by 3.40 kg of water. The initial temperature of the water was 14.10°C. At the end of the reaction, the temperature of the water was 48.90°C. Assume the heat was completely ...
March 8, 2010

math cont.
i forgot one of the questions to the math question i just asked. calculate your yearly salary after six years as a veterinary tech.
March 2, 2010

math
what? i did. ive already done this question twice and my teacher said i did it wrong both times
March 2, 2010

math
at the start of your school year as a veterinary tech, you receive a raise of $750. you expect to receive the same raise every year. your total yearly salary after your first raise is $18,000 per year write an equation that models your total salary (s) in terms of the number ...
March 2, 2010

Linear Equations
Solve the following system of equations by the substitution method. 8x = 2y + 5 3x = y + 7
March 2, 2010

college
TiO2(s) + H2(g) Ti(s) + H2O(g) (a) Consider the unbalanced equation above. What is the maximum mass of titanium that can be produced when 2.65 g of TiO2 and 3.40 g H2 react? = ?g Ti (b)Assume the reaction in part (a) goes to completion. Calculate the mass of excess reactant. =?g
February 28, 2010

precalculus
The question is...find the radian measure of the central angle of a circle of radius r that intercepts an arc of length s. Then it gives the radius r of 27 inches and an arc length s of 6 inches. How do I do that?
February 28, 2010

calculus
what he said
February 21, 2010

3rd grade math
13
February 18, 2010

English 101, Politics
Thank you for that. I will continue trying to figure this out.
February 16, 2010

English 101, Politics
I would like a starting point, I really don't understand the question. I am not good with politics at all. I've been researching it but I'm still at a loss.
February 16, 2010

English 101, Politics
This is for my English 101 class, I have to write a 3 page paper. Why did the recent history of liberalism and neoconservatism curiously mirror and parallel the modern African American civil rights movement?
February 16, 2010

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