Sunday
September 21, 2014

Posts by jamie


Total # Posts: 760

Math
What is the definition of a multiple
September 14, 2014

Math Multiplication
Thank you!!!! Ur awesome!
September 11, 2014

Math Multiplication
Im not sure about 60,36,and 18 the rest im fine with
September 11, 2014

Math Multiplication
Im not sure about a few facts...
September 11, 2014

Math Multiplication
What are all the multiplication facts for 60,36,48,20,25,40,50,30,100,15,18,and 12?
September 11, 2014

precalculus
The equation of the line joining the complex numbers -5 + 4i and 7 + 2i can be expressed in the form az + b \overline{z} = 38 for some complex numbers a and b. Find the product ab. I can get the equation of the line by slope intercept but I don't know how to do this in the...
September 6, 2014

Math/chem
If the temperature of a solution goes up 25degrees in 7 minutes, what is the rate of change of temperature? (Rate= temp. Change/ time)
September 3, 2014

chemistry
A student needs 1.00 mol of H2SO4 for an experiment. How many liters of 0.60 M H2SO4 does she need to obtain?
August 18, 2014

accounting
Here is some other information I forgot to include (well, not really information, but part of the problem that I'd already solved): Total Appraised Value = $995,000 Total Apportioned Cost = $820,000
August 8, 2014

accounting
Timberly Construction negotiates a lump-sum purchase of several assets from a company that is going out of business. The purchase is completed on January 1, 2013, at a total cash price of $820,000 for a building, land, land improvements, and four vehicles. The estimated market...
August 8, 2014

Chemistry
I need help i do not know how to do this problem at all. A 30.00 mL sample of 0.1500 M hydroazoic acid (HN3; Ka = 1.9 x 10-5) is titrated with 0.1000 M KOH. Calculate the pH after the following volumes have been added:
August 4, 2014

Spanish
Sorry, i will be sure to number the questions next time. I put quotation marks where it should have been underlined, but i'm positive the last one is A. Thank you for your help!! ♥
July 7, 2014

Spanish
Hey, i just wanted to know if i got the questions right? Thanks Choose the sentence in which the verb, shown in quotation marks, is grammatically correct. A. El principe no "está" en casa. ➭B. ¿Dónde "es" Maria? C. Ella "est...
July 7, 2014

physics
For a football player bending the ball around a defensive wall, state three principles which govern the flight path of the ball and the amount of spin imparted on to the ball? (3 marks) please help?
June 24, 2014

Spanish
Thank you for explaining each question and helping me :)
June 20, 2014

Spanish
I'm suppose to translate the English sentences into Spanish sentences. Have i done the grammar,meaning, and spelling right? 1.) El rey que usado canta está jugando el tambor. The king that used to sing is playing the drum. 2.) Él y ella está bebiendo ...
June 20, 2014

Calculus
The CIA published data about foreign countries on its web page. In particular they show total population as well as population growth. If a student is looking at Russia, they will see that the total population of Russia is declining. When they look at the table that shows ...
June 17, 2014

Calculus
So would it be -.010526 = (dV/dt)/V ?
June 17, 2014

Calculus
The last question for this problem asks to find the relative rate of change in the home's value at any time t. How would I do that?
June 17, 2014

Calculus
If the question says to write the differential equation "in thousands of dollars" would the particular solution be written as V(t)=240e^((-.010526)(t)) instead of V = 240,000 e^-.010526 t ?
June 17, 2014

Calculus
The median value of a home in a particular market is decreasing exponentially. If the value of a home was initially $240,000, then its value two years later is $235,000. a) Write a differential equation that models this situation. Let V represent the value of the home (in ...
June 17, 2014

Calculus
dy/dx = 4ye^(5x) a) Separate the differential equation, then integrate both sides. b) Write the general solution as a function y(x). For the second part, I got y(x)=e^((5e^(5x))/(5)) + C but I don't understand how to separate differential equations and/or integrate both ...
June 16, 2014

Calculus
So is the total distance 54?
June 9, 2014

Calculus
I got 0. That doesn't make sense to me... x(0) = 3(0)^2 - 18(0) + C = 0+C x(6) = 3(6)^2 - 18(6) + C = 108-108+C = 0+C x(6)-x(0)=0
June 9, 2014

Calculus
Assume v(t) = 6t - 18 on the interval [0, 6]. Find the total distance that the object traveled on [0, 6].
June 9, 2014

Calculus
My only options are: -12 6 -18 -6
June 9, 2014

Calculus
What is the total change of f(x), if f'(x) = 2x - 3x^2, over the interval [0, 3]?
June 9, 2014

Calculus
The rate of change in the volume of a tank is known to be dV/dt=0.6t*cos(0.08t^2 -1), where V(t) is in gallons per minute and 0<=t<=10 (0 is less than or equal to t which is less than or equal to 10). If the tank has a volume of 14 gallons initially, what is its volume ...
June 8, 2014

Calculus
So the answer would be -cos(2)+4=4.416?
June 7, 2014

Calculus
An object with an initial position of x(0) = 3 has a velocity of v(t) =sin(t). Find its position at t =2.
June 7, 2014

calc
The base of a three-dimensional figure is bound by the line y = 6 - 2x on the interval [-1, 2]. Vertical cross sections that are perpendicular to the x-axis are rectangles with height equal to 2. Find the volume of the figure. The base of a three-dimensional figure is bound by...
June 6, 2014

math
Assume a cube with all sides equal to x. Let the change in x with respect to t; x(t) = 2t + 1. What is the formula for the rate of change of the volume of the cube?
June 6, 2014

Spanish
Bonito should be bonita and señor should be señora. I think i get it. In English you would just call someone American, but in Spanish you have to identify if they are a man or women so you would say Americano and Americana. Thank you so much!!
June 4, 2014

Spanish
I'm doing my work but i don't get these three questions at all. Could you explain them as well? ★Which part of this sentence is not correct? Esta muchacha tan bonito es alta. A. Esta B. bonito ✔C. muchacha ★Choose the correct verb for tastes in the ...
June 4, 2014

statistics
A sample of n= 4 scores has SS equals 48 what is the estimated standard error for the sample mean
May 31, 2014

English Lit
Is it biased?
May 27, 2014

English Lit
Help I have no clue!!! A novel is an example of what type of source? Secondary, biased, tertiary, primary
May 27, 2014

Math
Q1. A population has a mean of µ = 80 with σ = 20. a. If a single score is randomly selected from this population, how much distance, on average, should you find between the score and the population mean? 20 because the standard deviation is 20 b. If a sample of n...
May 27, 2014

English
4 Is not grammatically correct it would be I want to learn how to drive.
May 27, 2014

HELP!!!! MATH
thank you! I guess I did it wrong
May 22, 2014

HELP!!!! MATH
A boat drops an anchor to the bottom of a lake. The anchor rope makes a 15 degree angle with the boat. The anchor rope is 24 feet long. How deep is the lake to the nearest foot?
May 22, 2014

math
A boat drops an anchor to the bottom of a lake. The anchor rope makes a 15 degree angle with the boat. The anchor rope is 24 feet long. How deep is the lake to the nearest foot?
May 22, 2014

biology
which of the following is not a part of the theory of evolution
May 13, 2014

Chemistry
Ahh!! Sorry for the grammar errors. :/ I was typing on my phone...thank you so much DrBob222! ^^ Do you think you might be able to explain how the reactants resulted into such a product for problem #6 and 7? I will presume problem #5 is a double replacement?
May 10, 2014

Chemistry
How would you write these chemical reactions?Can someone do one or two reactions for each problem, so I could get an idea of to them? ..I'm nit sure how most of the oeoducts wouls turn out..especially if it is a precipitate. 5. When Mn^2+ ions are separated from the ...
May 10, 2014

Spanish Proofreading
I haven't been able to meet with my Spanish professor to go over my short composition (it basically had to be a past narration using only the preterite and imperfect). If any Spanish speakers wouldn't mind reading it and letting me know what I need to correct that ...
May 4, 2014

Spanish Proofreading
Thank you so much for your help! I just have one more question. I changed "teníamos mucho de diversión" to "nos divertíamos mucho cuando estábamos jugando en la nieve". Does that look correct? I was trying to add a little bit of ...
May 4, 2014

Spanish Proofreading
Ok, thank you!
May 4, 2014

Spanish Proofreading
I haven't been able to meet with my Spanish professor to go over my short composition (it basically had to be a past narration using only the preterite and imperfect). If any Spanish speakers wouldn't mind reading it and letting me know what I need to correct that ...
May 4, 2014

Math
Last week we talked about Order of Operation or (PEMDAS) and this week we are solving Linear Equations. Is there any relation to the two practices? Think about it, are the processes similar? Is the process reversed? I think that there is a relation between the two but I just ...
May 1, 2014

chemistry
What is the difference between the speed of a moving object and its velocity?
April 10, 2014

Math
To win a certain board game, a tossed token must land on a shaded square on the board. The probability of winning is approximately 23%. If the board has a total area of 130 congruent squares, how many of these squares are shaded?
April 8, 2014

chemistry
I got it! Nevermind! I just was assuming the wrong equation went to completion! Thank you for asking me to type it out! It definitely helped me! :)
April 3, 2014

chemistry
And then the KF reaction will go to completion because it is completely soluable!
April 3, 2014

chemistry
Oh! I think I just caught my mistake...HF is a weak acid, so that reaction does not go to completion....
April 3, 2014

chemistry
the formatting is a little off, I'm so sorry. Let me know if you need me to re-type it.
April 3, 2014

chemistry
I tried to find the numbers I need for the HH equation, and I can't seem to find the correct way to use my chemical equation to find them. H+ + KF -> HF + K+ .01 .005 0 0 -.005 -.005 +.005 +.005 .005 0 .005 .005 <moles left at equilibrium KF <-> F- + K+ 0 0 ....
April 3, 2014

chemistry
calculate the pH of the solution when 100mL of .05M KF is mixed with 200mL of .05M HF; Ka (HF) = 3.467x10^-4. I tried to use the Henderson Hasselbach equation to get the correct answer (pH=3.16) but can't seem to get it correct. Any help would be AMAZING! Thank you in ...
April 3, 2014

chemistry
I'm stuck on this problem and only have 2 attempts left. The Ksp of Zn(OH)2 is 1.8x10^-14. Find Ecell for the following half-reaction. Zn(OH)2(s) + 2e^- <-> Zn(s) +2OH^-(aq) So far I've tried using the following methods, none of which have worked... Ecell = (0....
April 2, 2014

Algebra II
Graph the following inequalities y<2x-9 y=>-5x+3
April 2, 2014

Algebra II
Flying against the wind, a jet travels 3220 miles in 7 hours. Flying with the wind, the same jet travels 2820 miles in 3 hours. What is the rate of the jet in still air and what is the rate of the wind?
April 2, 2014

Chemistry
"Determine the volume of a 0.925M K2Cr2O7 solution required to completely react with 5.28g of Cu." My attempted method for solving was to convert the 5.28g of Cu to moles, find moles of K2Cr2O7 using the mole to mole ratio, and then use M=mol/L to solve for volume. ...
March 26, 2014

Chemistry
"Determine the volume of a 0.925M K2Cr2O7 solution required to completely react with 5.28g of Cu." My attempted method for solving was to convert the 5.28g of Cu to moles, find moles of K2Cr2O7 using the mole to mole ratio, and then use M=mol/L to solve for volume. ...
March 26, 2014

algebra 2
Identify the form of the equation (standard, vertex, intercept), tell if it opens up or down and give the axis of symmetry. y=-4x^2+3x+-6 Walk me through this please?
March 25, 2014

General Chemistry
A piston has an external pressure of 7.00 atm. How much work has been done in joules if the cylinder goes from a volume of 0.130 liters to 0.650 liters. Express your answer with the appropriate units.
March 20, 2014

chemistry
Just as I thought, it was much easier than I was making it out to be haha Thank you!
March 19, 2014

chemistry
I feel like this question is pretty easy, but I can't seem to figure out how to go about solving it. It's like the solution is on the tip of my tongue: Nitromethane (CH3NO2) burns in air to produce significan amounts of heat. 2 CH3NO2(l) + 3/2 O2(g) -> 2 CO2(g) + 3 ...
March 19, 2014

Physics
A piece of metal has a mass of 85 cg and a volume of 450L. What is it's density in g/cm3?
March 5, 2014

Physics
how many centimeters long is the proverbial "10-foot pole?"
March 5, 2014

Physics
A satellite that is 4175 miles from the center of the earth, orbits with a period of 90 minutes. What is its centripetal acceleration?
March 5, 2014

Physics
You throw a ball horizontally off a building with a horizontal velocity of 10m/s. What is the ball's horizontal velocity 5 seconds later. What is the ball's vertical velocity 5 seconds later?
March 5, 2014

AED
This is the first page of what I found at National Access Network website. 1 SOUTH DAKOTA Char Gatje, Director of Research South Dakota Education Association I. GENERAL BACKGROUND State The current state aid formula was passed by the 1995 legislature and is based on a per ...
March 4, 2014

AED
I am a little confused on how I go about writing these? Go to the National Access Network website and review the educational funding issues for South Dakota. Try to find information about the affect of school choice options on educational funding. From DQ 1, describe how ...
March 4, 2014

statistics
When calculating a confidence interval for the difference between two means, what information are you gaining? The means are from both same population and different? Thank you.
February 28, 2014

Statistics
When calculating a confidence interval for the difference between two means, what information are one gaining?
February 28, 2014

Statistics
A report says that the between-subjects factor of participants’ salary produced significant differences in self-esteem. (a) What does this tell you about the design? (b) What does it tell you about the results?
February 26, 2014

Statistics
A report says that the between-subjects factor of participants’ salary produced significant differences in self-esteem. (a) What does this tell you about the design? (b) What does it tell you about the results? 19.(a) Source Sum Squares df Mean Square F Between 134.800 3 ...
February 26, 2014

Statistics in Psychology
Please Help! For the following, which type of t-test is required? (a) Studying the effects of a memory drug on Alzheimer’s patients, testing a group of patients before and after administration of the drug. (b) Studying whether men and women rate the persuasiveness of an ...
February 26, 2014

Statistics
Summarize the steps involved in analyzing the results of a one-sample experiment.
February 23, 2014

chemistry
I got 30 this time! Yay! Thank you so much DrBob222! I really appreciate it!
February 13, 2014

chemistry
I got 23...but the answers available are a. 10 mL b. 30 mL c. 50 mL d. 100 mL ... is there something that I am doing incorrectly?
February 13, 2014

chemistry
An ice-bath made with sodium chloride will be 9 ± 1 oC when the solution is about 23% sodium chloride by mass. The density of solid sodium chloride is about 2 g/cm3. What volume of solid NaCl would you add to 200 g water to make a 23% NaCl solution? ANY HELP WOULD BE ...
February 13, 2014

Math
34
February 11, 2014

Statistics
If the population is normally distribution then the sample must be normally distributed even for small sample size? True or False. The variance of the standard normal distribution is always equal to 1.? True or False. A continuous random variable may not be normally ...
February 7, 2014

Statistics
A salesperson goes door-to-door in a residential area to demonstrate the use of a new Household appliance to potential customers. She has found from her years of experience that after demonstration, the probability of purchase (long run average) is 0.30. To perform ...
February 7, 2014

Statistics
A salesperson goes door-to-door in a residential area to demonstrate the use of a new Household appliance to potential customers. She has found from her years of experience that after demonstration, the probability of purchase (long run average) is 0.30. To perform ...
February 7, 2014

physics
One gram of nickel has 1.026 × 1022 atoms, and each nickel atom has 28 electrons. How many electrons are contained in 6.00 g of nickel? The elemental charge is 1.6 × 10−19 C. Answer in units of electrons
February 7, 2014

chemistry
2)Tf = (0.00089 +/- 0.00008) * (13 +/- 2) + (19.627 +/- 0.004) Tf = (0.012 +/- 0.002) + (19.627 +/- 0.004) Tf = 19.639 +/- what value?
February 7, 2014

physics Work unit
1. A football player pushes a tackle dummy forwards at a constant 0.85m/s for 11m using 7150J of energy. The tackling dummy mass is 120kg. a) find force the player exerts? b) what is the frictional force the dummy exerts? c) what work is done by the friction as the dummy is ...
February 1, 2014

Physics Work unit
1. A football player pushes a tackle dummy forwards at a constant 0.85m/s for 11m using 7150J of energy. The tackling dummy mass is 120kg. a) find force the player exerts? b) what is the frictional force the dummy exerts? c) what work is done by the friction as the dummy is ...
February 1, 2014

Chem
Calculate the pH of a solution obtained by mixing 50 mL of 0.75 M CH3COOH with 15 mL of 1.6 M NaOH. (Ka of CH3COOH is 1.8 x 10-5)
January 23, 2014

Math
Thanks so much!!
December 10, 2013

Math
Sugar comes in 2 pound bags and flour comes in 5 lb bags. Thomas bought 3 more bag of sugar than flour and the total weight was 48 pounds. How many bags of sugar and flour did Thomas buy?
December 10, 2013

math
A statistic professor plans classes so carefully that the lengths of her classes are uniformly distributed between 46.0 and 56.0 minutes. Find the probability that a given class period time is less than 51.75 minutes
November 29, 2013

Statistics
A statistics professor plans her classes so carefully that the lengths of her class are uniformly distributed between 46.0 and 56.0 minutes. Find the probablity that given class period runs less than 51.75 minutes
November 27, 2013

Algebra 1 (Reiny or Kuai)
jason wants to buy his brother a comic book. If he buys it online it costs $3.50, but if he buys it in the store there is a 20% markup. How much does the comic book cost in the store?
November 4, 2013

Math
1/4
October 29, 2013

edu 650
The idea of Gardener’s theory of multiple intelligences suggests that there are specific intelligences that are inherent in all individuals. The author, however, suggests that a preferred style may not necessarily be the best way an individual learns. With that in mind, ...
October 21, 2013

Math
A baseball pitcher has pitched a total of 25 innings so far during the season and has allowed 18 runs. At this rate, how many runs, to the nearest hundredth, would he allow in nine innings? This number is called the pitcher’s earned run average, or ERA. b. Randy Johnson ...
October 7, 2013

Chemistry
I am trying to figure out the molecular, ionic, and net equation for this question. HCl reacts with the precipitate formed from mixing Ni(NO3)2 and NaOH . This is what I got for the molecular but it is saying it wrong. Please help. Thank you. HCl(aq) + Ni(NO3)2(aq) + NaOH(aq...
October 5, 2013

Pages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | Next>>

Search
Members