Monday
June 27, 2016

Posts by mel

Total # Posts: 582

Chemistry
This was a multiple chocie question, so the possible answers are: A) 20,000 L B) 1000 L C) 10,000 L D) 2000 L E) 200 L D, 2000 L, is apparently the correct answer, but I don't know how to come to that conclusion.
May 2, 2016

Math
72
May 2, 2016

programming and visual basics
Using pseudocode or a flowchart write a program that does the following: Design the logic for the game Hangman, in which the user guesses letters in a hidden word. Store the letters of a word in an array of characters. Display a dash for each missing letter. Allow the user to ...
March 30, 2016

Language Arts
what is the participle or participial phrase in the following sentence: The art students, brought by bus, toured the museum.
March 29, 2016

science
How can i prepare a 100ml, 0.1M phosphate buffer solution (pH = 7) out of Na2HPO4 and NaH2PO4
February 27, 2016

Math
It's not 7 plus each. I know one of the answers is 6 because my teacher said its 7 days after the 28th on a calendar. Feb 28th + 7 days is march 6th. And another option is 35 because that is 28+7 but I still need 3 more possible answers, according to my teacher. It's ...
February 25, 2016

Math
Explain the attern generated by each of your answers. Find 5 different numbers that could be used to fill in the blank. 7,14,21,28,___ Please help me out if you could :)
February 25, 2016

L.o
Overport
February 21, 2016

Physics
what maximizes our ability to recover elastic potential energy?
February 21, 2016

Science
What impact does storage of elastic energy have on the efficiency of hopping?
February 21, 2016

Quick calc question
Determine the interval on which f(x) = ln(x) is integrable. (0, ∞) [0, ∞) (−∞, 0) U (0, ∞) All reals
February 16, 2016

Quick calc question
Given that the antiderivative of f of x equals 1 divided by x is F(x) = Ln|x| + C, evaluate the integral from 1 to 2 of the 1 divided by x, dx. ln3 1/2 -1/2 ln2
February 16, 2016

Quick calc question
Use geometry to evaluate the integral from 0 to 10 of the function f of x, dx for f of x equals 5 for x less than or equal to 5 and equals the quantity 10 minus x for x greater than 5 . 12.5 25 37.5 Cannot be found
February 16, 2016

programming logic and design
Using pseudocode or a flowchart write a program that does the following: Allow the end user to enter the category the ad will appear in (ex. Automobiles), Number of words and Customer Name Calculate the cost based on 50 cents per word for the first 15 and 25 cents for each ...
February 15, 2016

Quick calc question
Which of the following definite integrals could be used to calculate the total area bounded by the graph of y = 1 – x2 and the x-axis? the integral from 0 to 1 of the quantity 1 minus x squared, dx plus the integral from 1 to 2 of the quantity 1 minus x square, dx the ...
February 12, 2016

Quick calc question
If f(x) and g(x) are continuous on [a, b], which one of the following statements is false? the integral from a to b of the sum of f of x and g of x, dx equals the integral from a to b of f of x, dx plus the integral from a to b of g of x dx the integral from a to b of the ...
February 12, 2016

Quick calc question
Determine the interval on which f(x) = ln(x) is integrable. (0, ∞) [0, ∞) (−∞, 0) U (0, ∞) All reals
February 12, 2016

Quick calc question
Given that the antiderivative of f of x equals 1 divided by x is F(x) = Ln|x| + C, evaluate the integral from 1 to 2 of the 1 divided by x, dx. ln3 1/2 -1/2 ln2
February 12, 2016

Quick calc question
Use geometry to evaluate the integral from 0 to 10 of the function f of x, dx for f of x equals 5 for x less than or equal to 5 and equals the quantity 10 minus x for x greater than 5 . 12.5 25 37.5 Cannot be found
February 12, 2016

Quick calc question
Write the Riemann sum to find the area under the graph of the function f(x) = x2 from x = 1 to x = 5. 1. the summation from i equals 1 to n of the product of the quantity squared of 1 plus 5 times i over n and 4 over n 2. the limit as n goes to infinity of the summation from i...
February 12, 2016

Physics
Two identical charges repel each other with a force of 10-5 N when they are 20 cm apart. a.) What is the force on each when they are 5 cm apart? b.) When they are 100 cm apart?
February 12, 2016

Quick calc question
The Riemann sum, the limit as the maximum of delta x sub i goes to infinity of the summation from i equals 1 to n of f of the quantity x star sub i times delta x sub i , is equivalent to the limit as n goes to infinity of the summation from i equals 1 to n of f of the quantity...
February 11, 2016

algebra
simplify by removing factors of 1: 2p^2+10p+12/4p^2-4p-48
February 5, 2016

Quick calc question
Use the table below to evaluate the derivative with respect to x of g of f of 2 times x at x = 1. x 1 2 3 4 f(x) 6 1 8 2 f ′(x) 6 1 8 2 g(x) 1 4 4 3 g ′(x) 9 5 5 –4
January 30, 2016

Quick calc question
For f of x equals the quotient of the quantity 1 minus x and the quantity 1 plus x and g of x equals the quotient of the quantity x and the quantity 1 plus x, find the simplified form for f [g(x)] and state the domain.
January 30, 2016

Quick calc question
A particle moves on a line away from its initial position so that after t hours it is s = 4t^2 + t miles from its initial position. Find the average velocity of the particle over the interval [1, 4]. Include units in your answer.
January 29, 2016

Quick calc question
Find the x-coordinates where f '(x) = 0 for f(x) = 2x + sin(4x) in the interval [0, π].
January 29, 2016

Calculus
Find for dy/dx 4 – xy = y^3.
January 29, 2016

calc
A particle moves along the x-axis with position function s(t) = e^(cos(x)). How many times in the interval [0, 2π] is the velocity equal to 0? 1 2 3 More than 3< my nswer
January 28, 2016

algebra
A small garden measures 14 ft by 6 ft. A uniform border around the garden increases the total area to 209 ft2. What is the width of the border?
January 24, 2016

Calculus
The side of a square is measured to be 10 ft with a possible error of ±0.1 ft. Use differentials to estimate the error in the calculated area. Include units in your answer.
January 8, 2016

Calculus
Water is drained out of tank, shaped as an inverted right circular cone that has a radius of 16cm and a height of 8cm, at the rate of 4 cm^3/min. At what rate is the depth of the water changing at the instant when the water in the tank is 6 cm deep? Show all work and include ...
January 8, 2016

Calculus
The position function of a particle in rectilinear motion is given by s(t) = 2t^3 – 21t^2 + 60t + 3 for t ≥ 0. Find the position and acceleration of the particle at the instant the when the particle reverses direction. Include units in your answer.
January 8, 2016

Calculus
What is the maximum volume in cubic inches of an open box to be made from a 16-inch by 30-inch piece of cardboard by cutting out squares of equal sides from the four corners and bending up the sides? Your work must include a statement of the function and its derivative. Give ...
January 8, 2016

Calculus
Find the x-coordinates of any relative extrema and inflection point(s) for the function f(x) = 3x^(1/3) + 6x^(4/3). Please use an analysis of f ′(x) and f ′′(x).
January 8, 2016

calc
Given the position function, s of t equals negative t cubed divided by 3 plus 13 times t squared divided by 2 minus 30 times t, between t = 0 and t = 9, where s is given in feet and t is measured in seconds, find the interval in seconds where the particle is moving to the ...
January 8, 2016

Science
What's the difference between ambient temperature and body temperature?
December 16, 2015

Mechanical Behavior on Materials / math
the first one I have: sigma=-(P*l_AB^3)/(3*E*I)
November 9, 2015

Mechanical Behavior on Materials / math
The television coverage of the World Series showed several remarkable slow-motion views of the deflection of the bat as it hit the ball. Major league wood baseball bats are made of ash. A typical major league bat has a length of 0.95m and a tapering circular cross section. The...
November 9, 2015

Chemistry
A solution of ammonia and water contains 3.70×1025 water molecules and 7.10×1024 ammonia molecules. How many total hydrogen atoms are in this solution?
September 9, 2015

geometry
The midpoint of uv is (5 -11). The coordinates of one endpoint are u(3,5). Find the coordinates of endpoint of v.
September 8, 2015

Physics
After an average acceleration of 3.21 m/s2 during 2.41 s, your car reaches a velocity of 15.9 m/s. Find the car\'s initial velocity.
September 3, 2015

English
What does the light at the START of the tunnel mean? I know what the light at the end of the tunnel means, that there's always help, but I have no clue what to say for a speech about the light being at the start.
July 23, 2015

Math
159,103,47,
June 6, 2015

Calculus
A particle moves along the x-axis with position function s(t) = e^(cos(x)). How many times in the interval [0, 2π] is the velocity equal to 0?
May 10, 2015

chemistry
In a dry cell, MnO2 occurs in a semisolid electrolyte paste and is reduced at the cathode. The MnO2 used in dry cells can itself be produced by an electrochemical process of which one half-reaction is shown below. Mn2+(aq) + 2 H2O(l) MnO2(s) + 4 H+(aq) + 2 e - If a current of ...
May 5, 2015

chemistry
If 2.29 mL of a stock solution of acetic acid with a concentration of 0.723 M is mixed with 15.75 mL of water, what is the concentration of the diluted solution?
May 5, 2015

Chemistry
Someone help me with my titration molarity calculation please!? I have titrated 1.000 mL of Ca(IO3)2 with 2.197 ml of 0.022 M thiosulfate. First I found the moles of thiosulfate present with 0.002197 L x 0.022 M = 4.8388E-5. The mole ratio of S2O3^-2 and IO3- should be 6:1 (...
April 23, 2015

Chemistry
A solution is prepared by mixing 37.5 mL of 0.20 M (CH3)3N with 50.0 mL of 0.20 M (CH3)3NHC and then diluting the mixture to a total volume of 100.0 mL. Calculate the pH of resulting solution. So far I have been able solve the mols of the two chemicals. (CH3)3N being 0.20M/....
April 15, 2015

chemistry
It is found that an average volume of 24.25 ml of approximately 0.1 M NaOH is required to reach an endpoint in a titration with 25.00ml of 0.09917 M HCl solution. What is the NaOH concentration? Make sure to give answer to four significant figures.
March 27, 2015

Math
Is it 8 pails of water?
March 25, 2015

Math
A custodian pours1/8 gallon of cleaning solution into each pail of water that she uses. how many pails of water and cleaning solution can the custodian make using 16 gallons of cleaning solution?
March 25, 2015

math
Eric and Frank want to equally share 4/3 feet of rope. What length of rope should each friend get? Explain how to use a drawing to help solve the problem.
March 17, 2015

Math
A rectangular park has an area of 2_3 square mile. The length of the park is 22_3 the width of the park. What is the width of the park? this is the example of how they want them solving it The width of the room is 5/6 the length of the room. What are the dimensions of Kamal&#...
March 17, 2015

Biology
Are the p1 and p2 generations pure breeding?
March 11, 2015

Social Studies
HELP PLEASE!!! How important is India's geography to the beliefs of Hinduism?
March 9, 2015

math
Explain why an account balance less than -40 dollars represents a debt greater than 40 dollars.
March 5, 2015

math
Thank you Ms. Sue. I need help with this problem. The surface of Jupiter is made of colorful clouds created by various chemicals in the atmosphere. The temperature at the top of the clouds is -230 degrees F. The temperature below the clouds is 70 degrees F. Which temperature ...
March 5, 2015

math
lilt saw a jelly fish at 6 feet below sea level. She saw a blue fish at 10 feet below sea level. What is the distance between the blue fish and the jelly fish? Is the answer -4 feet?
March 5, 2015

math
Nathan deposited 7/9 of his allowance into his savings account. He spent the remaining amount, or $2.50. How much did Nathan deposit into his savings account? Should I multiply 7/9 *2 1/2 or 7/9 * 250
February 27, 2015

Biology - Genetics
If genes a, b, c, and d are genetically linked to each other, does it follow that a recombination experiment would detect genetic linkage between a and d?
February 11, 2015

Math
Thank you, Ms. Sue the answers are 3 and 4
February 10, 2015

Math
Ms. Sue, do you agree with Shimme about my answers
February 10, 2015

Math
A gallon of gasoline is more than ___ liters but a little less than ___ liters. I think the answers are 4 and 5. Am I correct?
February 10, 2015

math
In a recent survey 5/8 of pet owners say they allow their pet to go outside. Of these, 1/3 allow their pet outside without supervision. Does 5/8*1/3 express the fraction of the pet owners surveyed that allow their pet outside without supervision? My answer is yes. Did I do good?
January 29, 2015

Math
true or false- the product of two fractions that are each between 0 and 1 is also between 0 and 1
January 29, 2015

Genetics
Why are emerging f2 progeny frome crosses one, two, and three should be counted and phenotyped over a period of seven days? I have... for the first say of emergence, cultures produce more females than males. On successive days, the proportion of males increase until the sex ...
January 28, 2015

math
By what fraction would you multiply 8 1/2 so that the product is about 5? Plesae explain.
January 25, 2015

Finance
1. Following is the projected net income stream associated with the use of Zartek technology. (Note: this net income stream does not take into account that Zartek’s owners invested $2,000 to develop Zartek in Year 0.) Globus Maximus Enterprises would like to buy the ...
December 28, 2014

Chemistry
Thank you! I understand all except 2c. I did this way, is it true? M1V1= M2V2 M1= 15 M V1= ? M2= 1/100ml= 10/1000ml = 10 M V2= 100 ml And so I find V1= 67 ml .
December 4, 2014

Chemistry
My chemistry is bad. I know these are very easy but I cannot solve them . 1. a) Prepare 200 ml of 2 M HCl solution from stock bottle containing 37% w/w HCl and d = 1.2 (g/ml). MWHCl = 36.5 g b) Calculate M of 37% w/w HCl solution? d= 1.2, then solve the above problem 2. a) ...
December 4, 2014

Please help
I've done a decent job helping my daughter with this stuff, but it's been awhile since I was in school & just can't quite figure it all out.
November 11, 2014

7th grade math
Two step equations: Vincent started the year with $254 in his account at the health spa. Each time he uses the spa, $15 is taken out of the account. How many more times can he use the spa if he has already had $180 taken out of his account this year? I mostly just need to know...
November 11, 2014

Math 112
A student finds the value of square root of 3 on a calculator and says that this is the exact value of square root of 3 . How do you respond?
November 9, 2014

Statistics
Service times for customers at a post office follow some right-skewed distribution with mean 2.91 minutes and standard deviation 1.74 minutes. (a) Can you calculate the probability that the average service time for the next two customers is less than 2.64 minutes? If you can...
November 4, 2014

Statistics
haha im in your class and same name haha same question too
November 4, 2014

Statistics
Daily water intake (including water used in drinks such as coffee, tea and juice) for Canadian adults follows a normal distribution with mean 1.86 litres and standard deviation 0.29 litres. (a) Can you calculate the probability that the mean daily water intake for a random ...
November 4, 2014

Calculus
Find the value of a so that the tangent line to y = ln(x) at x = a is a line through the origin. I am unsure how to go about this.
October 19, 2014

Math
For f(x) = 2sinx + (sinx)^3 + tanx find f'(pi/3). Ok, so what I tried was... f'(x) = 2cosx + cosx(3(sinx)^2) + (sinx/cosx) pi/3 = (1/2, sqrt(3)/2) therefore, 2(1/2) + 1/2(3(sqrt(3)/2)(sqrt(3)/2) + (sqrt(3)/2 (2/1)) 1 + .5(3 (3/4)) + sqrt(3) 1 + .5(9/4) + sqrt(3) = 4....
October 19, 2014

Calculus
Ok thank you so much!
October 19, 2014

Physics
b.) A 33.3 N force is acting on a 285 kg slab. Determine the acceleration of the slab.
October 2, 2014

Math plz check if correct
B. negative The product of one positive and one negative term is negative. You could try it now, get a calculator and do any positive number times a negative number. Your result will always come out negative.
August 31, 2014

Math check see if i;m coorrect
Division has 4 parts: divisor, dividend, quotient and remainder. Since remainder is not an option, I would go with D. quotient.
August 31, 2014

Check this please?
Thank you guys.
August 31, 2014

Check this please?
I am writing about how different groups view the role of the government. I saw this online and wanted to use it to guide me through my essay, but wanted to check its accuracy because I thought Democrats weren't for higher taxes I thought Republicans were. Those in favor of...
August 31, 2014

Check my answers?
I am sorry to hear that, I hope things are well between you guys now. And thank you for checking my answers!
August 30, 2014

Check my answers?
Thank you. Also one more question was, Why did Washington and Nixon both believe that everyone was the loser in this situation? Now I wasn't too sure about this question but I responded with, We disliked both countries for years, and Washington said long ago that if you ...
August 30, 2014

Check my answers?
The passage: For decades, America has been locked in hostile confrontation with the two great Communist powers, the Soviet Union and the People’s Republic of China. We were engaged with the one at many points and almost totally isolated from the other, but our ...
August 30, 2014

Math
1 square mile
August 29, 2014

Check my answers?
Thank you!
August 29, 2014

Check my answers?
Ok my next guess was going to be C, because in my book it says how in 1981, Reagan he was cutting taxes, and in 1985, the nation was spending half a million dollars every minute on defense and these expenditures contributed to the growing budget deficits. But I wasn't sure...
August 29, 2014

Check my answers?
During the Reagan years, what happened to the overall course of the budget deficit? A. It rose. B. It fell. C. It increased by about $210 billion D. It increased, then fell back to its original level. I chose C. What was the major cause of deficit increases during the Reagan ...
August 29, 2014

History
Ok thanks again!
August 29, 2014

History
Thank you.
August 29, 2014

History
I already wrote about their economic and political structures I just want to make sure I didn't leave out any places they have settled.
August 29, 2014

History
Check my answer please I want to make sure I didn't leave something out, I was suppose to explain Spain, France, and England's settlements. In English colonies the earliest settlements were in Virginia and Massachusetts but soon spread all along the Atlantic coast, ...
August 29, 2014

History
Although settlers valued democracy, they often? A. rejected controls over government B. elected weak legislatures C. disregarded the rights of minorities D. failed to vote I chose D.
August 28, 2014

History
ok Thank you.
August 28, 2014

History
Is it because they're resistant to insecticides?
August 28, 2014

History
Why were crops such as Wheat and corn susceptible to insect pests?
August 28, 2014

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