Friday
December 9, 2016

Posts by raj

Total # Posts: 301

math
dicks had a 1 day sale. the original bike price was $325. on sale the same bike was $276.25. what is the percent reduction for this sale?? thxx
December 11, 2012

Math
A souvenir mug sells for 8 dollars. Kendra gives the clerk 9 dollars and receives 56 cents. what is the sales tax rate? Thx!
December 11, 2012

Algebra
10 100 3
December 5, 2012

statistics
6.95 ± 1.96 (.352) =
December 5, 2012

Math
This is right answer but this step is wrong .
November 18, 2012

Human physiology
find effective osmotic pressure of normal saline.
September 25, 2012

AP Physics
A hot air balloon containing an AP Physics student ascends vertically at a constant speed of 8 m/s. While ascending, he accidentally drops his rubber duckie from the gondola of the ballong. Seven seconds after it is dropped the duckie bounces off a roof at point A and hits the...
September 15, 2012

physics
to find the depth of the water surface in a well, a person drops a stone from the top of the well and simultaneously starts a stopwatch. The watch is stopped when the splash is heard, giving a reading of 3.65 s. The speed of sound is 340 m/s. Find the depth of the water ...
September 12, 2012

Physics
34.2 meters
September 11, 2012

Spanish writing
Spanish writing - SraJMcGin, Saturday, August 18, 2012 at 8:49pm Just because the directions say to use the Subjunctive, it does NOT mean to use it everywhere! Your first statement is FACT and therefor there is no Subjunctive! hay muchas, etc. The 2nd sentence says what you DO...
August 18, 2012

Spanish writing
Thanks for your input! I have made corrections and can you please verify if I have followed the rules correctly? Thanks! En los Estados Unidos hay muchas cuestiones políticas. Creo que hay tres cuestiones principales. Los tres cuestiones principales son: el control de ...
August 18, 2012

Spanish writing
Could you please check the grammar of my writing assignment. Thank you very much! Discuss your opinions and ideas about three different popular political issues. Include how you think things should be and what you wish certain people would do about it. Articulate your ideas on...
August 18, 2012

math
a car travels around a horizontal circular track of radius 45m. if the car increases its speed at a constant rate of 1.2m/s starting from rest, determine the time needed for it to reach an acceleration of 1.4m/s. What is its speed at this instant?
August 4, 2012

math
write a short paragraph on rational nu mber
July 3, 2012

Math
Find the value of K such that the following trinomials can be factored over the integers: 1. 36x^2+18x+K 2. 3x^2 - 16x+K
June 12, 2012

statistics
Z=(X<1.5)=0.4332+0.5=0.9332
May 14, 2012

physics
projectile motion with constant horizontal speed ? A stone falls off a cliff with horizontal velocity v m/s. it falls a distance of 5cm vertically and 200m horizontally in t seconds. when it has fallen a vertical distance of 20cm, what is its horizontal distance from the cliff...
April 16, 2012

physics
a ball is thrown at an angel of 40 degee above tghe horizontal.the ball clears the fence whis is 85 metre away.what is the inital velosity of the ball if we assume the ball is thrown at the same elevation of the fence
March 10, 2012

algebra
A man is 4 times as old as his son.After 16 years he will be only twice as old as his son. find their present ages.
February 15, 2012

english
Are you gonna help
January 26, 2012

english
cool he likes to play video games and do crazy stuff
January 26, 2012

english
are you going to reply
January 26, 2012

english
like what
January 26, 2012

english
no i want to do fake person
January 26, 2012

english
i need to write carecter sketch esay nedd help due 1/27/12 friday need help ASAP
January 26, 2012

math
is some one gona reply
January 13, 2012

math
Joel has twice as many CDs as Mariella has. Subtracting 7 from the number of CDs Joel has and dividing by 3 equals the number of CDs Blake has. If Blake has 25 CDs how many CDs does Mariella have? Help step by step
January 13, 2012

Physics
A worker pushing a 35.0-kg wooden crate at a constant speed for 13.7 m along a wood floor does 390 J of work applying a constant horizontal force of magnitude F0 on the crate.Determine the value for F0.
November 21, 2011

Chemistry
Calculate ∆H˚ for the following reaction using the given bond dissociation energies. CH4 (g) + 2O2 (g) --> CO2 (g) + 2H2O (g) Bond.......∆H˚ (kJ/mol) O-O........142 H-O.........459 C-H.........411 C=O........799 O=O........498 C-O.........358 ∆H...
November 9, 2011

Math
If a is the greatest common factor of 72 and 48, and if b is the greatest common factor of 108 and 144, what is the least common multiple of a and b
October 28, 2011

calc
Find all values of x for which the tangent line ot y=2x^3-x^2 is perpendicular to the line x +4y=10?
October 23, 2011

math
let θ(in radians) be an acute angle in a right triangle, and let x and y, respectively, be the lenghts of the sides adjacent and opposite θ. suppose also that both x and y vary with time how are dθ/dt, dx/dt, and dy/dt related?
October 19, 2011

Algebra 2
3 5 7 are odd and consecutive-- they add to 15 which is greater than 10 and less than 20.
October 19, 2011

Calc
let theta (in radians) be an acute angle in a right triangle, and let x and y, respectively, be the lenghts of the sides adjacent and opposite ?. suppose also that both x and y vary with time
October 19, 2011

Algebra
y- intercept is b in the formula y=mx+b hence your y intercept is 7/2.
October 19, 2011

Algebra
y=mx+b and m is the slope rearrange the equation so you can find what y equals. in this case you would rearrange it to equal y=-5x/2+7/2. so your slope is -5/2.
October 19, 2011

Calculus
Assume that x>0 and y>0. If y=5sqrt{x+9} and dx/dt = 2, find dy/dt when x=7.
October 17, 2011

Algrebra
Please advise on the following: From 1993 to 2003 the cumulative number N of AIDS cases in thousands can be approximated by, where corresponds to the year 1993. N = -2 x2 + 76x + 430, where x = 0 corresponds to. 1) Show how well the equation approximates the data. 2) Rewrite ...
July 25, 2011

world issuse
Don't kno the answe...pls tell me the answer
May 24, 2011

math
Probability: 11 out of 29; or 37.9310345%. Method: Take a sample of 100. 45 are men; 40% or 18 men wear glasses 55 are women; 20% or 11 women wear glasses. So out of 100, 18+11=29 wear glasses out of which 11 are women. Probability: 11 out of 29
April 13, 2011

math
-1/2, 1/7, 2/7, 6/7 Method: Negative (-1/2)is obviously smaller than positives. So that is the smallest. Then arrange the rest in order of the top (numerator), since the bottom (denominator) in each case is the same.
April 13, 2011

algebra 1-B
how to write 24th march 2011 in 5b letter without using number
March 24, 2011

geometry
A right triangle has a base that is 2 more than twice the height. Find the length of the base for the triangle. If the area is 30 square units.
January 31, 2011

MATH !!
could you also tell me what the series will be ? thanks.
December 19, 2010

MATH !!
n lim(n→+∞)⁡ ∑ (3/4)^k = k=1 the n is supposed to be above the sigma sign and the k=1 is supposed to be below the sigma sign. thanks.
December 19, 2010

Please Help
the n is supposed to be above the sigma sign and the k=1 is supposed to be below the sigma sign. thanks.
December 19, 2010

Please Help
n lim(n→+∞)⁡ ∑ (3/4)^k = k=1
December 19, 2010

Calculus
Use a simple area formula from geometry to find the area under function A(x) that gives the area under the function f(x) = 9 on the interval [2, x].
December 19, 2010

Calculus
Find all values of x, where the graph of y = [(5x^3)-(6x)+(8)] / (x^2) crosses its oblique asymptote.
November 29, 2010

Calculus
Find all values of x, where the graph of y = [(5x^3)-(6x)+(8)] / (x^2) crosses its oblique asymptote.
November 29, 2010

calculus
use the definition of the derivative to calculate f'(x), if f(x)= SQRT(2x) and find the equations of the tangent line and the normal line to the graph of f at x=2
November 13, 2010

Physics-work,power,energy
A 20 ton truck is pulling a 5 ton trailer.their common uniform velocity is 54 kmph.if the frictional force is 20N per both the truck and the trailer then power developed is?
October 31, 2010

Chemistry
0.2M
October 10, 2010

algebra 1a
Soybean meal is 18% protein, cornmeal is 9% protein. How many pounds of each should be mixed together in order to get a 360-lb mixture that is 10% protein? Cornmeal-how many pounds:__________ Soybean meal-how many pounds:______
May 27, 2010

Math
Soybean meal is 18% protein, cornmeal is 9% protein. How many pounds of each should be mixed together in order to get a 360-lb mixture that is 10% protein? Cornmeal-how many pounds:__________ Soybean meal-how many pounds:______
May 27, 2010

English-please help
To bring to your organization enthusiasm, dedication, responsibility, and good work ethic, combined with a desire to utilize my skills obtained through work experience. Is that correct sentense??
May 10, 2010

English-please help
I am reliable dishwasher seeking for a position of dishwasher where I can use my previous dishwashing experience for a leading restaurant. Is that correct sentense??
May 10, 2010

English-plese hepl
I am reliable dishwasher seeking for a position of dishwasher where I can use my previous dishwashing experience for a leading restaurant. Is correct sentense??
May 10, 2010

math
So i was working in the office with Matt today and he said the funniest thing. He said if you get 1 stick and hit a bird with it two birds will appear! But if you hit the two birds with 2 sticks a pineapple with appear. But if you eat the pineapple you will become the ...
May 7, 2010

Mathematicas
3B+3S
April 18, 2010

Physics
The small archerfish (length 20 to 25 cm) lives in brackish waters of Southeast Asia from India to the Philippines. This aptly named creature captures its prey by shooting a stream of water drops at an insect, either flying or at rest. The bug falls into the water and the fish...
April 17, 2010

chemistry
When excess solid Mg(OH)2 is shaken with 1.00 L of 1.2 M NH4Cl solution, the resulting saturated solution has pH = 9.30. Calculate the Ksp of Mg(OH)2 I am not sure where to even begin on this problem.
March 21, 2010

CHEMISTRY
What is reaction between HI+HNO3
February 21, 2010

English
ut the words in correct sentence order. If necessary, change the form of the simple verb in boldface. Be sure to begin each sentence with a capital letter. Pay attention to the final punctuation. 1)be no, she. 2)don't no, you.
February 10, 2010

English
to Steve go City College. Steve goes to city college.is that right?
February 9, 2010

English
Put the words in correct sentence order. If necessary, change the form of the simple verb in boldface. Be sure to begin each sentence with a capital letter. Pay attention to the final punctuation. 1)be we library the in. 2at college be she the? 3)be no, she. 4)be he late ever ...
February 9, 2010

probability
1/36
January 1, 2010

chemistry
a 500 ml portion of .0020 M Na2C2O4 solution is able to dissolve .47g of MgC2O4. What is the Ksp for MgC2O4
November 24, 2009

Social Science
Can anyone help me get some points? What can the Church do today to make itself more relevant to Generation X?
July 9, 2009

Algebra Honors
The length of the base of a triangle is 4 times its altitude. If the area the triangle is 162 cm2, find the altitude.
April 2, 2009

Chemistry
PartA: What volume of 10.0M NaOH is needed to prepare a buffer with a pH of 7.79 using 31.52 g of TrisHCl? TrisHCl is a weak base and the molecular weight is 157.67 g/mol. I found the solution, it is 6.67 milliliters. The main question is:Part B: "The buffer from Part A ...
March 1, 2009

CHemistry
45.00 mL of 1.55×10^−2 M HI(aq) is mixed with 85.00 mL of 1.08×10^−2 M KOH(aq). What is the pH of the solution?
February 18, 2009

Chemistry
What is [H3O+] in a solution obtained by dissolving 215 mL HCl(g), measured at 23 degrees C and 757 mmHg, in 4.30 L of aqueous solution?
February 14, 2009

Chemistry
can u tell me what your final answer is? I got 7.96 * 10 ^5 ml.
February 14, 2009

Chemistry
thnx
February 14, 2009

Chemistry
How many millimeters of this solution should be diluted with water to produce 650 mL of a solution with pH= 11.50? 6.8% ammonia (d= 0.97g/ml)
February 14, 2009

Chemistry
I thought for the density, the calculation would be as follows: 0.15gKOH/g---> 1g of solution, density=1.14 g/ml.......0.15g/(1g/1.14g/ml) to get 0.171 g/ml. and then I thought molarity for [OH^-] was 2.51 * 10^-3. The proper set up I got like 3.66 g/? mL. I might be wrong...
February 14, 2009

Chemistry
How many millimeters of a 15.0%, by mass solution of KOH(aq)(d = 1.14 g/ml ) are required to produce 26.0 L of a solution with pH = 11.40?
February 14, 2009

Chemistry university level
what mass of ethylene glycol, the main component, of antifreeze, must be added to 10.0 L water to produce a solution for use in a car's radiator that freezes at -23.3 degree C? Assume the density for water is exactly 1 g/ml.
January 27, 2009

chemistry
what is the lewis dot structure for SO4 -2 and the ideal bonds, mollecular structure and hybrid orbitals?
January 15, 2009

Organic Chemistry
i am not able to get the proper name but i can tell the structure i.e. ch3 ch3-ch2-ch2oso3
January 7, 2009

chemistry
the wander walls force of attraction increases,it become more stable and it requires less energy.
January 7, 2009

Chemistry...Please Help
GK, why don't you write the concentration of water for (e)?
January 6, 2009

Statistics
The percentage of adults who have been told at some point that they have hyptertension is 23.53%. If 10 adults are randomly selected, what is the probability that at least 8 have been told that they have hypertension?
October 9, 2008

Chemistry
Draw the Lewis structures for BrO3- and ClO4- and indicate their correct number of additional resonance structures. I'm a little confused about this. For example, I've got the correct original form of BrO3- down. Where all 3 O atoms are single bonded to Br, and the Br ...
September 28, 2008

history
I need information on Bull Capital Rampurva Maurya 323. thank you
June 21, 2008

Chemistry
Can someone please explain to me whats the difference between a buffered and non-buffered solution?
March 23, 2008

Chemistry
Yes I know it will be m=1. But what if I have something like log (base 1/4) 0.33 = m Then how would I solve something like that.
March 11, 2008

Chemistry
I haven't calculus in a while. So can someone please help me with this, its for rates: log (base 1/4) 0.25 = m I know that m = 1, but how would I solve for it using the log method.
March 11, 2008

Chemistry
I need help distinguishing between nucleophiles and electrophiles. Like one of the examples I am given shows methanal, chloroethane, and methanamine. Now it says methanal is electrophilic because the carbonyl group is polar since the more electronegative oxygen atom has a ...
March 5, 2008

Chemistry
I understand why PCl3 is zero order, but I don't get why Cl2 is second order.
February 27, 2008

Chemistry
In the reaction PCl3 + Cl2 ---> PCl5. If the rate doesn't increase when the concentration of PCl3 is doubled and the rate increases by a factor of four when the concentration of Cl2 is doubled, how would I write the rate law for the reaction?
February 27, 2008

Chemistry
If I2 reacted with hexane, how would we know, which carbons the Is go on? Would only one of the iodine go to the hexane and the other form HI, or would they both join and H2 is a by-product?
February 11, 2008

Chemistry
Sorry, I meant hexane and not toulene. For hexane, I would expect a reaction to occur, but the colour stayed dark purplish. Would HI form here?
February 10, 2008

Chemistry
For a lab, I had to react toulene with 1% I2 in dichloromethane. Would HI form as a result of this? Logically, I think there would be no reaction because toulene looks too stable. But a colour change occured. Why would this happen?
February 10, 2008

Chemistry
Nevermind.
February 6, 2008

Chemistry
Given the weight of phenacetin and its percentage yield...how would I calculate its melting point?
February 6, 2008

Chemistry
Write the structure for the alkane: molecular mass = 72 u; forms four monochlorination products. Well since its 72u and its an alkane, I figured out that the formula is C5H12. But what does it mean that it "forms 4 monochlorination products"?
January 31, 2008

Chemistry
If I am given a molecular hydrocarbon structure, how would I be able to tell how sp3 hybridized carbons it possesses? Like my current question asks How many sp3-hydridized carbon atoms does 11-cis-retinal possess?
January 27, 2008

Antiderivatives
I can't figure this one out, the antiderivative of x^-1. I thought it would be c, but the derivative of c is zero.
January 22, 2008

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