Sunday
September 25, 2016

Posts by Jay

Total # Posts: 1,546

Math
The difference between two positive number is 72 and one of them is divided by the other, the quotient is 4.Find those numbers. Option: a) 22&94 b) 24&96 c) 20&92 d) 30&102
July 25, 2011

algebra II
use the properties of logarithms for the expression. 5^log5(7x)
July 17, 2011

algebra II logarithms
f(x)=log4 (x)+3 how could i get this so i could graph it?
July 17, 2011

math
what is the definition of area of circle formular.
July 17, 2011

algebra 2
The pH of a solution is given by the formula pH = -log H+ , where H+ is the concentration of hydrogen ions in moles per liter in the solution. Use this formula to solve the problem. Round answer to one decimal place if necessary. Find the pH of a sample of lake water whose [H...
July 14, 2011

Algebra 2 logarithms
Use the properties of logarithms to evaluate the expression. 1. 5^log(7x) 2. 10^x + 2 log(x)=x+2 or log(x)=x-2 ????
July 14, 2011

physics
12.5
July 13, 2011

math
what isthe area of a 8 inch circle?? what are the calculations. ???
July 3, 2011

rapping>???
what does it mean when they say i came down with a chip on shoulder
June 27, 2011

English
its ok i corrected it and got a 100 all i have to do is take my finale exam and im finish with this school thank you guys so much for helping me out alot
June 23, 2011

English
nope idk you just confused me even more
June 23, 2011

English
no but can you Check My answers please
June 23, 2011

English
ok i got nothing,impress.learning,pretending,differently,second,share, and gain
June 23, 2011

English
alright please do when i finsih
June 23, 2011

English
According to Kubler Ross, The lessons that dying people teach espically valuable . dying people can look back honestly, because they have ------ to ----- by ------ or trying to -------- anyone -------. They only want to thinking about how they would do things ------- if they ...
June 23, 2011

reading
According to Kubler Ross, The lessons that dying people teach espically valuable . dying people can look back honestly, because they have ------ to ----- by ------ or trying to -------- anyone -------. They only want to thinking about how they would do things ------- if they ...
June 23, 2011

science
when water is turn into steam it expands or contacts many times or both ??? i need help with this question
June 19, 2011

reading
Examine the evidence of the Earth's shape. The sharp horizon at first suggests a flat Earth with an edge. But as you walk toward the horizon, the "edge" recedes ahead of you, implying that the Earth's surface is curved. Look also at a ship sailing out to sea...
June 14, 2011

Science
I need an Acrostic poem for the word science
June 10, 2011

calculus(equating coefficients)
Can somebody explain to me why equating coefficients work? Example: 8x^3+13x = Ax^3 + 2Ax + Bx^2 + 2B + Cx + D expanded into: 8x^3 + 13x = Ax^3 + Bx^2 + (2A+C)x + 2(B+D) where A,B,C,D are constants. Why does 8 = A; 0 = B; 13 = 2A + C; etc. I know they have same power variables...
June 6, 2011

Math Deadline Approaching: Please Help
Thanks....
June 6, 2011

Deadline Approaching: Please Help
SIMPLEX METHOD - Table: Nutrient Peanuts Raisins M&Ms Pretzels Calories 855 435 1024 162 Protein 34.57 4.67 9.01 3.87 Fat 72.50 0.67 43.95 1.49 Carbs 31.40 114.74 148.12 33.68 Suppose that you want to make at most 10 cups of trail mix, using all the ingredients. You want each ...
June 6, 2011

Math
What is the proper constraint for this: "You want each of the ingredients to contribute at least 10% of the total volume of the mix made."
June 6, 2011

Math
I have the objective, I just need the constraints. If you can please list all of the constraints. The constraint that is stumping me is the one where I have to show 10% of the total. Thanks!!!!!
June 6, 2011

Math
MathMate - I'm still confused, please see below. Thanks!! SIMPLEX METHOD - Table: Nutrient Peanuts Raisins M&Ms Pretzels Calories 855 435 1024 162 Protein 34.57 4.67 9.01 3.87 Fat 72.50 0.67 43.95 1.49 Carbs 31.40 114.74 148.12 33.68 Suppose that you want to make at most ...
June 6, 2011

Math
MathMate, Sorry.. still confused. I set up the constraints as x1>1, x2>1, x3>1, x4>1 but I'm not getting the answer. Are those contraints correct or is there another way to write it?
June 4, 2011

Math
SIMPLEX METHOD - Table: Nutrient Peanuts Raisins M&Ms Pretzels Calories 855 435 1024 162 Protein 34.57 4.67 9.01 3.87 Fat 72.50 0.67 43.95 1.49 Carbs 31.40 114.74 148.12 33.68 Suppose that you want to make at most 10 cups of trail mix, using all the ingredients. You want each ...
June 4, 2011

math
a drum with a 24'' od has a circumference of _''. ????
June 4, 2011

math
6 cu ft contain_ cu in.???
June 4, 2011

math
18.84
June 4, 2011

math
985.96 is this correct
June 4, 2011

math
the volume of a tank that is 2'- 0'' in diameter and 6' -0'' long is _ cu ft. ???? please help
June 4, 2011

math
a 31'' diameter circle has an are of _ sq ft.????
June 3, 2011

math
96 cu in. is this correct
June 3, 2011

math
the volume of a container that is 8'' long , 4 '' deep, and 3'' high is _ cu in. ???
June 3, 2011

math
754.385 is this correct
June 3, 2011

math
a 31'' diameter circle has an area of _ sq ft. ???
June 3, 2011

math
the radius of a13.5' diameter circle is _ ' ???
May 29, 2011

english / laungage
3. C 4.d 5.c
May 24, 2011

trig
Find the angle between 0 and 2pi that is coterminal with negative one half pi; expressing the answer in radians in terms of pi.
May 19, 2011

Chemistry
its not 21.3 nor 10.7
May 16, 2011

Chemistry
correct it is 0.84 goodluck cuz i had to trust this answer and it was right.
May 16, 2011

math
answer in simplest radical form. sin 90 degrees
May 14, 2011

math
answer in simplest radical form. sin 90 degrees
May 14, 2011

math
A coin is tossed four times. Find the probability of each of the following: P(exactly 1 head) I know we have to use to this formula p(x=0)=nCk(p)^k(1-p)^n-k How do you find P? if n=4
May 11, 2011

grammar
fire can be either friendly or a foe, depending on the situation. make parallel
May 10, 2011

Chemistry
Choose the two half-reactions from a table of standard reduction potentials that most closely approximate the reaction that occur within the battery (Pacemaker). What is the standard voltage generated by a cell operating with these half-reactions? (i got +3.85V). The actual ...
May 7, 2011

Chemistry
Thank you so much
May 7, 2011

Chemistry
What is the half-cell reactions in a hydrogen fuel cell, and calculate the standard voltage at 25°C H2(g)+ O2(g)------>2H2O(l)
May 7, 2011

Chemistry
Choose the two half-reactions from a table of standard reduction potentials that most closely approximate the reaction that occur within the battery. What is the standard voltage generated by a cell operating with these half-reactions? 2Li(s) + Ag2CrO4(s) --------> Li2CrO4(...
May 7, 2011

Chemistry
Heart pacemakers are often powered by lithium-silver chromate “button” batteries. The overall cell reaction is: 2Li(s) + Ag2CrO4(s) --------> Li2CrO4(s) + 2Ag(s) Lithium metal is the reactant at one of the electrodes of the battery. Is it the anode or the cathode?
May 7, 2011

Chemistry
Thank you very much. This helps a great deal
May 7, 2011

Chemistry
Explain with values and reactions from standard reduction potentials tables why neither gold (I) nor gold (III) not to mention the base metal itself, tarnishes (that is can be oxidized by exposure to air)
May 7, 2011

Chemistry
How much time in years (assume a 365 day yr) would it take for a 1.6678g sample of 239Np to decay to a mass of 0.8671g if it has a half life of 2.030*10^5s
May 6, 2011

Chemistry
How much energy in KJ is release to form one mole of 123Sb from protons and neutrons if the atom has a mass of 122.90422 amu? Please remember to include the mass of electrons in calculations.
May 6, 2011

Chemistry
A rock containing 238U and 206Pb was examined to determine its appropriate age. The molar ratio of 206Pb to 238U was 0.1462. Assuming no lead was originally present and that all lead formed remained in the rock. What is the age of the rock in years? The half life of 238U is 4....
May 6, 2011

Statistics
Hi I am a college student in wireless technology but am only very sketchy on statistics. I'm am trying to write a program to tell me if activity is unusual. I can read the activity of a person from a motion detector from day to day i.e. mon activity - 250 times tues - 300 ...
May 6, 2011

geometry
Jackson is creating a water garden surrounded by a triangular patch of grass. If the pond will take up the space indicated by the circle, how many square feet of sod will he need to complete the garden (use 3.14 for and round your answer up to the next foot)?
May 4, 2011

math
16 = 16x^2 - 64x + 64 0 = 16x^2 - 64x + 64 - 16 (using quadratic formula) x= 3 or x =1
May 3, 2011

Math
Anyone help?
May 2, 2011

Math
What other post?
May 2, 2011

Math
Can someone guide me with this question? Four teachers and five students have volunteered to serve on the school's fundraising committee, which is chaired by the principal. The principal wishes to select the committee using a random draw. He places each person's name ...
May 2, 2011

Math
Should I create a grid 6 by 5? :S
April 27, 2011

Math
faizel wants to travel from his house to the hardware store that is six blocks east and five blocks south of his home. If he walks east and south, how many different different routes can he follow from his house to the store? Can somebody help me setup this question? I don'...
April 27, 2011

Math
Find the instantaneous rate of change for the function at the given value. f(x)=x^2+2x at x=-4
April 27, 2011

Math
Using the arrangement of letters in the margin, compute the number of paths that spell the word MATHEMATICS if all paths must start at the top and move diagonally down through the letters. M A A T T T H H H H E E E M M M M A A A T T I I I C C S I only got up to E E E, I don&#...
April 26, 2011

Calculus
Could someone work this out so I understand it. Thanks Given the supply function p=S(x)=5(e^0.02x-1) Find the average price (in dollars)over the supply interval [31,36] The 0.02x in the only thing ^ on the e
April 25, 2011

History
how trading helped sparta economy?
April 25, 2011

world history
The Europeans desire for profit affected the people of Congo by taking away their freedom, forcing them into slavery, taking away their customs, affected the economy etc.
April 24, 2011

Chemistry
The vapor pressure of water at 95C is normally 6.33.9 but decreased to 561.2mmHg upon addition of an unknown amount of NaOCl to 164.3g of water at this temp. How many grams of NaOCl was added assuming complete dissociation of the solute
April 23, 2011

Chemistry
I followed this procedure but i was told the answer was incorrect. Any help would be appreciated.
April 23, 2011

Chemistry
Oh just kidding after much frustration and stepping away from the problem and coming back, I noticed that I messed up the density in my conversion. I had the right idea I just had to correct my mistake and then continue on with the molar mass of CaF2, then I divided 4 ...
April 18, 2011

Chemistry
Calcium fluoride is the well-known mineral fluorite. It is known that each unit cell contains four Ca2+ ions and eight F- ions and that the Ca2+ are arranged in a face-centered cubic lattice. The F- ions fill all the tetrahedral holes. The edge of the CaF2 unit cell is 5.46295...
April 18, 2011

Math
Can someone help me verify if this is correct? Gasoline usage for compact cars in Canada is a normal distribution with a mean of 33.3 km/l and with standard deviation of 7.3 km/L. Round your answers to one decimal place. a) What percentage of compact cars obtains 20km/L or ...
April 17, 2011

Math
anyone?
April 17, 2011

Math
Can someone help me verify if this is correct? Gasoline usage for compact cars in Canada is a normal distribution with a mean of 33.3 km/l and with standard deviation of 7.3 km/L. Round your answers to one decimal place. a) What percentage of compact cars obtains 20km/L or ...
April 17, 2011

Math
She added 4, multiplied the sum by -5, and subtracted 12. She then doubled the result and got -34. What number did Christa started with?
April 14, 2011

social studies
what was one of the increased use of the assembly line in the 1920's?
April 11, 2011

geography
what would happen if wheat was no longer a resource to the U.S.?
April 4, 2011

Physics
A 7.80-g bullet moving at 590 m/s penetrates a tree trunk to a depth of 4.8 cm. Assuming the friction force is constant, determine how much time elapses between the moment the bullet enters the tree and the moment it stops moving.
March 24, 2011

chemistry
for an exotherimic reaction incresing the reaction temperature results in a (n)___k ?
March 22, 2011

chemistry
given reaction at equilibrium, if Kp=1.05 at 250 degree celcius, then kc =
March 22, 2011

algebra
8000, because 1m=100cm. You take the 100m/5cm=20 cubes. V=LxWxH. 20x20=400x20=8000
March 20, 2011

chem
how many moles of NaOH are needed to neutralize 50.0 Ml 0f ).242 M H2SO4 solution ?
March 19, 2011

physics
The engine weighs 4500 newtons and it is lifted 1.5 meters up by the block and tackle system. The mechanic must apply a force of 225 newtons while pulling a total of 37.5 meters of chain through the block and tackle pulley system. What is the work done by the block and tackle ...
March 17, 2011

Physics
.455
March 15, 2011

Geometry
(20^2-7^2) = 351 sqrt of 351 = 18.7
March 9, 2011

Geometry
Find the length of the altitude of an isosceles triangle if one side has a length of 20 ft and a base of 14 ft?
March 9, 2011

English
Yeah but the entire essay is a narration, and in my question I had to pick out the thesis for both Frazier and his narrator. So I had to find in the essay where Frazier interjects his own thesis.
March 8, 2011

English
I am between two different thesis statements for Frazier either it is where the writing becomes italicized, "Remember to keep shower curtain inside tub at all times!" Or In the last paragraph from Operating the shower curtain is kind of tricky to there is no need ...
March 8, 2011

English
Within this I have another question. I am between two different thesis statements for Frazier either it is where the writing becomes italicized, "Remember to keep shower curtain inside tub at all times!" Or In the last paragraph from Operating the shower curtain is ...
March 8, 2011

English
Help! In Ian Frazier's essay How to Operate the Shower Curtain, what problems are users likely to encounter in using the shower curtain?
March 8, 2011

Physics
An electron is accelerated through 2200 V from rest and then enters a region where there is a uniform 1.30 T magnetic field directed perpendicularly to the electron's velocity.
March 7, 2011

math
6 + 3
March 7, 2011

math
A computer technician charges $40 for a house call and $38 per hour. The expression 40 + 38t is used to find the cost of a house call that lasts t hours. What is the cost of a house call that last 3 hours?
March 7, 2011

math
A phone compant uses the expression 1.25 + 0.10m to calculate the cost of a phone call that lasts m minutes. What is the cost of a call that last 20 minutes?
March 7, 2011

Calculus 12th grade (double check my work please)
2 and 3 are right. the first one is a trick question. It is a circle, so the tangent line is always 90 degrees to the radius
March 6, 2011

Algebra
Factor 2xsquared minus 5x minus 3.
March 5, 2011

Business Communications
Thank you, my understanding of when or where to use Ms. was wrong.
March 5, 2011

Business Communications
5: You are attending a professional conference and are privileged to be introduced to Caroline Peters. You know nothing about her except that she is an executive at a very successful company. You have and idea that you would like to talk over with her. How should you address ...
March 5, 2011

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