Abi
Most popular questions and responses by Abi
MATH?!!?
a store sells ladders. . the retail price was a 40m percent markup over the manufacturer price. .a month later, the store reduced the retail price of the ladder by 25 percent What percent markup is the new retail price over the manufacturer price?
asked on February 9, 2014 
Chemistry (please check)
1)Which of the following compounds has the largest lattice energy: LiF LiCl NaF NaCl 2)Which of the following compounds has the most ionic character in its bonding: CaBr2 GeBr4 KBr GaBr3 3)Using the electronegativity table on page 364 of your text, which
asked on April 15, 2011 
Calculus (pleas help!)
Find the slope of the tangent line to the ellipse x^2/36 + y^2/49 =1 at the point (x,y). slope =_______ Are there any points where the slope is not defined? (Enter them as commaseparated orderedpairs, e.g., (1,3), (2,5). Enter none if there are no such
asked on March 17, 2011 
Precal
An indoor physical fitness room consists of a rectangular region with a semicircle on each end. The perimeter of the room is to be a 200meter running track. a) Draw a figure that visually represents the problem. Let x and y represent the length and width
asked on June 13, 2013 
chemistry
Determine the mass of CO2 gas that has a volume of 7.10 L at a pressure of 1.11 atm and a temperature of 31.0°C.
asked on January 21, 2013 
Physics
A 5.4 kg bag of groceries is in equilibrium on an incline of angle θ= 150. Find the magnitude of the normal force on the bag
asked on November 30, 2010 
maths
karim deposited a sum $ 9000 in a bank after 2 years he withdrew $ 4000 and the end of 5 years he received $ 8300. find the rate of interest on the sum he recieved
asked on February 4, 2019 
Calculus
Consider the function f(x)=sin(5x)/x. (a) Fill in the following table of values for f(x): x= 0.1 0.01 0.001 0.0001 0.0001 0.001 0.01 0.1 f(x)= ( I need the values of f(x) for each x) (b) Based on your table of values, what would you expect the limit of
asked on February 9, 2011 
math
A model airplane flies 18 feet in 2 seconds. what is the airplane's speed in miles per hour? round your answer to nearest hundredth.
asked on August 23, 2017 
Calculus
Consider the function f(x)=(4^x−1)/x. (a) Fill in the following table of values for f(x): x= 0.1 0.01 0.001 0.0001 0.0001 0.001 0.01 0.1 f(x)= I the the falues of f(x) for each interval... (b) Based on your table of values, what would you expect the
asked on February 9, 2011 
Math
A couple buys a $170000 home, making a down payment of 18%. The couple finances the purchase with a 15 year mortgage at an annual rate of 2.75%. Find the monthly payment.
asked on July 31, 2016 
Math
Lactose (MW:342 amu) makes up the vast majority of the carbohydrate. Calculate the molarity of lactose in buttermilk and compare it to that of protein.
asked on October 12, 2013 
Calculus
Consider the function f(x)=(4^x−1)/x. (a) Fill in the following table of values for f(x): x= 0.1 0.01 0.001 0.0001 0.0001 0.001 0.01 0.1 f(x)= I the the falues of f(x) for each interval... (b) Based on your table of values, what would you expect the
asked on February 9, 2011 
MATH
A yellow jacket can fly 4.5 meters in 9 seconds. find the unit rate in meters per second .
asked on August 23, 2017 
Precal
An indoor physical fitness room consists of a rectangular region with a semicircle on each end. The perimeter of the room is to be a 200meter running track. a) Draw a figure that visually represents the problem. Let x and y represent the length and width
asked on June 13, 2013 
Calculus
Use the graph to estimate the limit: lim x>0 sin(3x)/x When x is in degrees lim x>0 sin(3x)/x = ________ I thought the the answer was (3*180)/pi but it's not... please help... Thanks
asked on February 9, 2011 
calculus
Two cars, one traveling north and one traveling west, collide at an intersection.The resulting momentum of the two cars together after the collision is 32 000 kg . m/s N30degreesW. Find the momentum of each car before the collision.
asked on May 2, 2010 
Math
If each 11 football teams In a college athletic conference played each of the other teams just once in a season, how many games would there be? As part of your answer, make a table. How many games would there be for 12 teams?
asked on August 21, 2013 
Physics Urgent!!!!!
OK, I know, I'm postin this way too many times but I'm halfway there now.... Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational
asked on May 2, 2011 
Math
Using vocabulary terminating non terminating repeating non repeating explain why the value 3.14is rational while the value for pie is irrational
asked on January 30, 2018 
Physics (please help!!!!)
Sorry to repost this, again, but I still don't understand. Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be
asked on May 1, 2011 
Physics (please help!!!!)
Sorry to repost this, again, but I still don't understand. Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be
asked on May 1, 2011 
Physics Urgent!!!!!
Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be determined by directly measuring the interaction force in
asked on April 30, 2011 
Simple Harmonic Motion
have performed an experiment of simple harmonic motion and the values I got Mass(g) Distance (m) 200 0.438 250 0.398 300 0.345 350 0.312 400 0.297 450 0.281 500 0.259 I would like to know how to calculate the spring constant... since I have been having
asked on February 8, 2011 
maths
4x+3y=21 What is your question? You have simply stated the equation of a straight line. what is a prime factorazation?> expressing a number in terms of its Prime factors eg. 126 = 2*3*3*7 all the factors are prime numbers How does this relate to the first
asked on March 23, 2007 
Algebra 1
Solve by whatever method you would prefer. (Leave answers as improper fractions) 3x + 2y = 10 2x – 5y = 3 Can someone give step by step?
asked on December 19, 2017 
math
the ratio of the sale price of a jacket to the original price is 3:4 the original price is $64 what is the sale price
asked on August 23, 2017 
physics
A lineaer spring having a force constant k=40 N/m hangs vertically,supporting a 0.8 kg mass.the mass is then pulled down a distance of 0.15 m . During up and down oscillations ,the maximum speed of the mass will be..
asked on November 21, 2015 
biochemistry
what is the ph of 1.0 m acetic acid and 1.0 sodium acetate. (ka=1.8x105)
asked on October 25, 2015 
Linear Programming
A Company wishes to assign six of its workers to six different jobs (one worker to each job and vice versa). The rating of each worker with respect to each job on a scale of 0 to 10 (10 being a high rating) is given by yhe following table: Job 1 Job 2 Job
asked on October 14, 2014 
Physics Urgent!!!!!
Sorry to repost this, again, but I still don't understand. Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be
asked on May 1, 2011 
Physics Urgent!!!!!
Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be determined by directly measuring the interaction force in
asked on April 30, 2011 
Calculus
Water is leaking out of an inverted conical tank at a rate of 1100.0 cubic centimeters per min at the same time that water is being pumped into the tank at a constant rate. The tank has height 15.0 meters and the diameter at the top is 5.0 meters. If the
asked on April 12, 2011 
Calculus (pleas help!)
For what values of k is lim x > INF coshkx/sin2x finite? (Enter your answer as an interval or list of intervals, for example, (infinity,3], (5,7). Enter none if no values of k will work.) Please help..
asked on March 17, 2011 
Physics (please help)
Two cars are drag racing, starting from rest at t = 0, on a straight and level road. Team Alpha's car produces acceleration ax = alpha t^(1/2) ; while Team Beta's car produces acceleration ax = Beta ; for all t > 0, where alpha and beta are positive
asked on February 11, 2011 
chemistry
why is it good to be a csi
asked on September 9, 2008 
science  refraction
why is refraction important when seomeone uses a camera?
asked on April 25, 2008 
Maths
A fighter accelerates from rest at 120,000 m/s^2 for a time of 4 seconds. How far did the jet fighter travel?
asked on January 29, 2017 
maths
easiest method for dividing
asked on December 1, 2014 
Precal
Please help. I'm having a lot of trouble with solving inequalities and graphing them solve the inequality and graph the solution on the real number line x^2+x6/x I got SS: infinity to 3 including 3 union 2 to infinity including 2 is that right?
asked on June 22, 2013 
Precal
I'm supposed to graph y= 4+2sin (pi/6 t pi/5) i have the vertical shift d=4 amplitude 2 level line y=4 crest line y=6 trough line y=2 but i am not sure what the period is formula for period 2pi/b in this case 2pi/pi/6 => 12pi/pi do the pi's cancel,
asked on June 20, 2013 
Physics (please help!!!!)
Sorry to repost this, again, but I still don't understand. Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be
asked on May 2, 2011 
Physics Urgent!!
Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be determined by directly measuring the interaction force in
asked on April 30, 2011 
Physics Urgent!!
Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be determined by directly measuring the interaction force in
asked on April 30, 2011 
Calculus
Water is leaking out of an inverted conical tank at a rate of 1100.0 cubic centimeters per min at the same time that water is being pumped into the tank at a constant rate. The tank has height 15.0 meters and the diameter at the top is 5.0 meters. If the
asked on April 12, 2011 
Calculus (pleas help!)
For what values of k is lim x > INF coshkx/sin2x finite? (Enter your answer as an interval or list of intervals, for example, (infinity,3], (5,7). Enter none if no values of k will work.) Please help..
asked on March 17, 2011 
Math
A photographer changers a sitting fee of $15for each pose writte a function to describe the situation find a reasonable domain and range for up to 5 pose
asked on November 2, 2017 
MATH
A computer's fan rotates 2000 times in 40 seconds. find the unit in rotations per second.
asked on August 23, 2017 
org chem
How to know if there's a dipole moment???
asked on July 10, 2015 
physics
7/8 part of a substance decays in 45 days what is its half life
asked on February 5, 2014 
Physics Urgent!!!!! I really need help with this
Sorry to repost this, again, but I still don't understand. Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be
asked on May 2, 2011 
Physics Urgent!!!!! I really need help with this
Sorry to repost this, again, but I still don't understand. Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be
asked on May 2, 2011 
algebra
what is the area of length 5 and with 6
asked on April 23, 2011 
Calculus Please Help
Let f(x) = x^3  x^2 + x  1. Find an equation for tangent line to f at x = 2.
asked on March 23, 2011 
Calculus (pleas help!)
For what values of k is lim x > INF coshkx/sin2x finite?
asked on March 18, 2011 
Physics
Two cars are drag racing, starting from rest at t = 0, on a straight and level road. Team Alpha's car produces acceleration ax = alpha t^(1/2) ; while Team Beta's car produces acceleration ax = Beta ; for all t > 0, where alpha and beta are positive
asked on February 9, 2011 
Physics
Two cars are drag racing, starting from rest at t = 0, on a straight and level road. Team Alpha's car produces acceleration ax = alpha t^(1/2) ; while Team Beta's car produces acceleration ax = Beta ; for all t > 0, where alpha and beta are positive
asked on February 9, 2011 
Physics
I have performed an experiment of simple harmonic motion and the values I got Mass(g)Distance (m) 200 0.438 250 0.398 300 0.345 350 0.312 400 0.297 450 0.281 500 0.259 I would like to know how to calculate the spring constant... since I have been having
asked on February 8, 2011 
Physics
Can someone please tell me how to calculate the standard deviation of the following values? 0.985 0.985 1.005 1.455 1.035 And please for the following numbers too 1.47 1.52 1.50 1.45 1.39
asked on February 8, 2011 
social studies
do you have any quizes
asked on December 31, 2010 
Maths
(tanÈ+cotÈ)(sinÈ+cosÈ)=secÈ+cosecÈ
asked on September 11, 2008

MATH
5.236
posted on August 23, 2017 
MATH
???????????????
posted on August 23, 2017 
math
0.0025
posted on August 23, 2017 
MATH
80,000
posted on August 23, 2017 
MATH
i was divide 9 by 4
posted on August 23, 2017 
MATH
9/4
posted on August 23, 2017 
MATH
2.25
posted on August 23, 2017 
MATH
20
posted on August 23, 2017 
MATH
50
posted on August 23, 2017 
MATH
damon A computer's fan rotates 2000 times in 40 seconds. find the unit in rotations per second
posted on August 23, 2017 
MATH
divide
posted on August 23, 2017 
math
$784
posted on August 23, 2017 
Precalculus
This website is boss and you can find the answer quickly. It really explains what you need to know better than I can because I can't show you graphs. mathbitsnotebook (dot com) (slash) Algebra1 (slash) FunctionGraphs (slash) FNGTypeExponential After
posted on November 18, 2016 
stats
a1/4 b2/30 c3/4
posted on September 1, 2016 
Chemistry
it might be 1/(8+1) and he/she must be missing () brackets
posted on December 9, 2015 
physics
Answere this question
posted on October 17, 2015 
org chem
THANK YOU! if there are many unpaired electrons, will it means its polar?
posted on July 11, 2015 
Precal
:D thank you!!! I guess I've been staring at this for too long and probably not typing them correctly on the calculator! THANK YOU SO MUCH!!!!!!
posted on June 22, 2013 
Precal
I'm still not understanding... it's okay i'll keep trying to figure it out. im clearly not double checking it right since i checked for 1 and got a positive answer but its supposed to be negative till 2 :/ thank you so much for your time! it is honestly
posted on June 22, 2013 
Precal
but if replace x with 4 i get a positive answer too!
posted on June 22, 2013 
Precal
if i replace .001 with x i get 6001.001 how are you solving that without calculator
posted on June 22, 2013 
Precal
yes, it gives me 6001.001 as an answer You're not using a cal?
posted on June 22, 2013 
Precal
Aww it's not funny, it's frustating! :( you want me to replace x with 3 not sure what you're meaning by that try 3/.001 where did you get the .001?? I'm so sorry i'm not understanding and thank you so much for helping
posted on June 22, 2013 
Precal
See, this is where i have trouble understanding. if i put if in the calculator i see why it'd be 3 to 0 but in the exams the professor makes sure we are not able to graph inequality in calculator my graph was off on paper, i just verified on ti84+ and it
posted on June 22, 2013 
Precal
I ended up with SS: (00,3]union [2,00) why would it be 3 to 0?
posted on June 22, 2013 
Precal
Isn't it x^2+x6 = 0 (x+3)(x2) = 0? x = 3 or x= +2?
posted on June 22, 2013 
Precal
Sorry i should have put that in parenthesis (x^2+x6)/x greater than or equal to 0
posted on June 22, 2013 
Precal
EDIT WHERE INEQUALITY IS GREATER THAN OR EQUAL TO ZERO
posted on June 22, 2013 
Precal
I did have to find those too but i was stuck on the Period! thank you so very much!
posted on June 21, 2013 
Physics Urgent!!!!! I really need help with this
I was substracting both radii, now I tryed (6.674E11)(0.730283)(157.850)/(0.2286)^2 and I got 1.47E7 and tryed 6.674E11)(0.730283)(157.850)/(0.2286 +.1524 +.0254)^2 and I got 4.66E8... but niether is right....
posted on May 2, 2011 
Physics (please help!!!!)
I showed it.... r1= 0.0254m, m1=0.730283 kg, r2= 0.152m and m2=157.850 kg... I calculated (6.674E11)(0.730283)(157.850)/(0.152m0.0254m)^2 and I got 4.77E7 and multiplyed it by 2 and then I got 9.54 E7...
posted on May 2, 2011 
Physics Urgent!!!!!
But I just have to plug in one number for part A that most be E7 and for part B I have to plug only one number too that must be E8.
posted on May 1, 2011 
Physics Urgent!!
Is that for A?
posted on April 30, 2011 
Physics Urgent!!
Ok, so I have r1= 0.0254m, m1=0.730283 kg, r2= 0.152m and m2=157.850 kg... I calculated (6.674E11)(0.730283)(157.850)/(0.152m0.0254m)^2 and I got 4.77E7 and multiplyed it by 2 and then I got 9.54 E7... Does this looks right?
posted on April 30, 2011 
Physics (please help)
Hi Damon, Thanks for your help. Can you explain me how you got alpha (2/3) t^(3/2) ? Because I got alpha (4/3) t^(3/2) = beta (1/2) t^2 and then t= [(8/3)(alpha/beta)]^2 I then used my equation of beta and substituted t with my answer and I got
posted on February 11, 2011 
Calculus
the values I got for f(x) were 4.9; 4.99; 4.999; 4.9999; 5.0001; 5.001; 5.01; 5.1 The two firsts and the two lasts values are not correct and I don't know why... the limit is 5 also what i have for the other part is .00001
posted on February 10, 2011 
Calculus
The first value I tried was 3... and it didn't work either, I thought that the fact that it said "x is in degrees" affected. It also said at the end: (Give your answer accurate to at least 0.01...
posted on February 9, 2011 
Simple Harmonic Motion
I forgot to mention that the experiment is to teach us error analysis methods... I have to get the values of k for each interval Mass(g) Distance (m) 200 0.438 250 0.398 300 0.345 350 0.312 400 0.297 450 0.281 500 0.259 the values for k I got were k (N/m)
posted on February 8, 2011 
Health Project Ideas
Try your brain on Crystal Meth
posted on February 7, 2011