Sunday
August 30, 2015

Posts by Allie


Total # Posts: 278

Chemistry
Okay thank you! :)
August 14, 2015

Chemistry
For the reaction ? Li+? N2 →? Li3N , what is the maximum amount of Li3N which could be formed from 11.79 g of Li and 17.08 g of N2? I got 19.72 g as my final answer and I just want to make sure I am correct. If I am not can you please help me understand this problem?
August 14, 2015

Algebra
For the following sequences determine the term indicated: a_1=-2, a_n=2(a_n-1)^2,a_4 a_n=ln(e^n+2), a_5 b_0=1, b_1=2, b_n+1=2b_n-b_0
May 4, 2015

Chemistry
How much heat is absorbed by a 2966 kg granite boulder as energy from the sun causes its temperature to change from 3°C to 31°C? 1000 g = 1 kg
May 3, 2015

math
a person had to drive 1417 miles. They drove 9 hours a day for 3 days. How many miles per hour did they drive?
April 30, 2015

calculus trig substitution
∫ x^3 √(x^2+9) dx If you work it can you write the steps? I really don't like the way my teacher teaches it. Someone else doing it might help.
March 14, 2015

physics
The tortoise and the hare agree to a race. Of course, they are racing cars, having gotten tired of racing on foot. The tortoise, having just bought a new Mercedes AMG GT, allows the hare to have a running start in his Volkswagen Rabbit. The hare starts the race by getting up ...
February 15, 2015

physics
A sprinter in a race can run 100m in 11.4 seconds. If it takes him 4.2 seconds to accelerate to top speed, what is the magnitude of his acceleration? Assume that he stays at his top speed from 4.2 seconds till the end. I do not understand which kinematics equation will help, ...
February 15, 2015

math
how do I translate this sentence into an equation. 51 is the product of Malik's height and 3 . Use the variable m to represent Malik's height
February 13, 2015

algebra
diana drove 320 miles, then increased her speed by 10 miles per hour for 500 miles. if the second part of the trip took 2 hours longer than the first, find her average speed.
February 11, 2015

physics
What potential difference is needed to stop an electron having an initial speed of 3.70x 105 m/s? Answer in volts
January 29, 2015

physics
The three charges in the figure are at the vertices of an isosceles triangle. Calculate the work that needs to be expanded, in Joules, to bring the charges together (as shown.) Take q=5.7 μC. The length of base is b=2.30 m. The lengths of sides are s=5.80 m. The two ...
January 28, 2015

math
Karen collects local and foreign coins. of the coins in her collection, 1/4 are foreign coins. Of the foreign coins,2/5 are from mexico What fraction of the collections are foreign coins that are not from mexico?
January 12, 2015

alegbra 1
so its letter d
January 11, 2015

Algebra 1
Where would the system below intersect on a graph? y=12x+15 y=15x I know that: x=5 y=75 But I need help on how to graph it.
January 9, 2015

Physics 11
A 1.00 x 10^4 W electric motor is used to lift a 955 kg object vertically 25.0 m at a constant velocity in 45.0 s. What is the efficiency of the motor? I did P=W/t (1.00x10^4 x 45 =W) And got 4.50 x 10^5 Then I did Ep' = Ek 955 x 9.81 x 25 = 234213.75 But I wasn't sure...
January 4, 2015

English
I have this question on my homework to find six pieces of figurative language and six pieces of symbolism for the book The Barcode Tattoo by Suzanne Weyn. I could only find two though- the barcode and the Whiteface Mountain. Please help. Your help is very much appreciated. -...
December 10, 2014

chemistry
Write out the mechanism (using correct curved arrow notation) for the acid-catalyzed, cis-trans isomerization of maleic acid (into fumaric acid) If teh electrophilic addition reaction of maleic acid with HCl had gone to completion what would be the structure of the addition ...
December 3, 2014

Chemistry
Assign the two absorptions found above 3000 cm-1 in acetamide. Why are these absorptions missing in n,n-dimethylacetamide
October 8, 2014

statistics
In order to subject their cash registers to random audit, suppose we want to select a random sample of three people from this group of cashiers. Bonita, Chandra, Earl, Glenda, Homer, Jamal, Kendra, Maria, Oscar, Reshonda. How do I use a random number table?
July 30, 2014

Biology
A strand of DNA contains the following bases. ATT CCG GGA TTT a) what amino acids are coded for? First of all, would the mRNA strand be UAA GGC CCU AAA?
May 18, 2014

science
Sem and tem microscope
May 7, 2014

Algebra I
what does factoring the sum or difference of two cubes mean
May 4, 2014

Calculus Help Please Urgent!!!
Yeah.
May 1, 2014

Pre algebra
A bag of balloons contain 2 red balloons, 1 green balloon, 17 yellow balloons, and 8 orange balloons. What is the probability that a randomly selected balloon would be green or orange? I got 9/28, but I think that's wrong
April 30, 2014

MATH UGH WORD PROBLEM
3.14 (r squared)40 =
April 1, 2014

Chemistry
If 0.08 mol of LiCl is added to a one liter solution that has dissolved 0.01 mol of PbCl2, will a precipitate occur?
March 4, 2014

algebra
The rack of weight plated at the fitness center has a total of 148 plates weighing 2.5,5,and 10 pounds each. The total weight is 500 pounds. There are ten times as many 5 pound plates as 10 pound plates. Set up a matrix equations and then solve it to determine the number of ...
December 16, 2013

physics
in other terms of units, what is a joule equal to? a)N*m b)N/m c)W/s d)s/W e)N*s
December 10, 2013

science
I need an acrostic poem for the element Sodium?? puhleez?! THANX!!!
December 7, 2013

Lit
how does mark twain show racism and slavery in huckleberry fin? thanks!
December 3, 2013

World History
For my research project, I need to choose an absolute monarch. I want to do one on  a monarch/emperor/king from Vietnam because I have Vietnamese origins and am interested in learning more about its history. Is there any well known Vietnamese absolute monarchs? Thank you
November 19, 2013

Grade 12 Physics
For this question my answer keeps on coming to 25m/s but answer is 28.
November 18, 2013

Science
Explain what acids and bases are in terms of hydrogen ions. Which has more hydrogen ions and which has less?
October 29, 2013

physics
the moon has a period of 27.3 days and a mean distance of 3.90x10^8 m from the center of the earth. find the period of a satellite in orbit 6.7x10^6 m from the center of earth. thank you!
October 26, 2013

religion/theology
i have to make a prayer video and i dont know what to make it about, please help! thank you
October 12, 2013

CHEMISTRY
Given that Mg(ClO3)2 decomposes into magnesium chloride and oxygen: A) Write a balanced equation for this reaction. I got Mg(ClO3)2 yields MgCl2 + 3 O2 Is that right? B) If 0.302 grams of O2 is lost from 1.890 grams of a mixture of Mg(ClO3)2 and an inert material, what is the ...
September 30, 2013

CHEMISTRY
Given that Mg(ClO3)2 decomposes into magnesium chloride and oxygen: A) Write a balanced equation for this reaction. I got Mg(ClO3)2 yields MgCl2 + 3 O2 Is that right? B) If 0.302 grams of O2 is lost from 1.890 grams of a mixture of Mg(ClO3)2 and an inert material, what is the ...
September 30, 2013

Lit
in the scarlet letter what influence did the witches have on pearl thanks!
September 10, 2013

lit
yea i had to read the book over the summer but my teacher wants us to find a celebrity that kinda represents them. like how lindsey lohan is like a pearl
September 9, 2013

lit
im doing a character analysis and i need help on what celebrity is like hester and one like pearl
September 9, 2013

Writing
Can you proofread my essay? Life in the Fast Lane Have you ever changed so much in life that you couldn’t possibly bare it? Well, that person is called a dynamic character, someone who changes throughout a drama. In the drama, “The Crucible,” by Arthur Miller ...
September 7, 2013

history
why is the columbian exchange and pilgrims important to the U.S history? thank you!
September 4, 2013

theology
WHO IS saint. cecilia?
August 31, 2013

Lit
thank you so much!!
August 25, 2013

algebra
It's a difference of two squares. It'll be (x+sqrt(4)) and (x-(sqrt(4)), for example---replacing 4 with whatever number is being subtracted from x squared. That one is (x-2)(x+2). Another example: x^2-16 = (x-4)(x+4) You can even do this: x^4-16 = (x^2-4)(x^2+4)
August 25, 2013

Writing
Can you proofread my essay and I also need a good title? Christopher Columbus was a brave, strong, hard-worker who took sea to America in 1470. What is biased? Biased is your opinion or idea on someone. In Christopher Columbus journal excerpt, there were many examples of how ...
August 24, 2013

math
In a class of 80 seniors, there are 3 boys for every 5 girls. In the junior class, there are 3 boys for every 2 girls. If the two classes combined have an equal number of boys and girls, how many students are in the junior class?
July 9, 2013

theology
there are no variations within the catholic liturgy. all liturgy is identical worldwide. true or false?
May 27, 2013

math
Part 1: Write two conditional statements for which the converse is true. 1. Statement: 2. Converse: 3. Statement: 4. Converse: Part 2: Write two conditional statements for which the converse is false. 5. Statement: 6. Converse: 7. Statement: 8. Converse:
May 12, 2013

math
simplify sin(540-2x) this is to do with trig
May 10, 2013

Trig
Verify the identity. (secx + tanx)/(secx - tanx) = (1 + 2sinx + sin(^2)x)/cos(^2)x
May 9, 2013

maths
find the general solution for the equation: sin2x+ square root 3cosx =0
May 9, 2013

english
a dolls house questions: what religious themes do you see in the play? What is the significance of Nora’s words, “to hell and be damned” in Act I? Was Nora wrong to have acquired the money for the trip to save Torvald’s health? What elements of Nora and ...
May 5, 2013

Algebra
The stem-and-leaf plot represents the average monthly high temperatures in Tampa, Florida. What is the first quartile (Q1) of the temperatures? Round to the nearest tenth. Stem leaf 6 9 7 1267 8 14799 9 00
May 2, 2013

Math
Does this set of data have any outliers? Data: 1, 2, 2, 4, 6, 6, 7, 8, 9, 10, 12, 13, 16, 16, 18. no or yes
May 2, 2013

Algebra
The data below represents the average score per game of the top 40 NBA players, rounded to the nearest whole number. Find the minimum, Q1, median, Q3, maximum for the data. Stem l leaf 1 l 55667777888888899 2 l 00000011123445566679 3 l 135
May 2, 2013

AP Chemistry
yea you're right!
April 30, 2013

english
Just took this test and got 100% the answers are, rhetorical criticism and structure
March 30, 2013

College Statistics
A random variable X has a Gamma distribution with (alpha = a, beta = b). Show that P(X > 2ab) < (2/e)^a. hint: X > c is equivalent to e^Xt > e^ct
March 30, 2013

Chemistry
How many liters of hydrogen gas can be produced at 300.0K and 1.55atm if 20.0g of sodium metal is reacted with water?
December 6, 2012

Chemistry
How many liters of hydrogen gas can be produced at 300.0K and 1.55atm if 20.0g of sodium metal is reacted with water?
December 6, 2012

science
I just wish that people could post a helpful answer, Translational motion is movement of an object without a change in its orientation relative to a fixed point, as opposed to rotational motion, in which the object is turning about an axis. With that in mind a leaf blowing ...
November 29, 2012

math
Is a package of 8 hot dog buns proportional to a package of 10 hot dog franks?
October 28, 2012

Physics
A ball of moist clay falls 10.4 m to the ground. It is in contact with the ground for 20.5 ms before stopping. (a) What is the average acceleration of the clay during the time it is in contact with the ground? (Treat the ball as a particle.) m/s2 (b) Is the average ...
October 21, 2012

math 7th grade
hint: use pemdas
October 18, 2012

math 7th grade
what is 234(2-1+1092-924+18) ?
October 18, 2012

physics
A 16000 kg sailboat experiences an eastward force of 12400 N due to tide pushing its hull while the wind pushes the sails with a force of 51900 N directed toward the northwest (45 westward of North or 45 northward ofWest). What is the magnitude of the resultant ac- ...
October 17, 2012

3rd grade
the answer is precisley 9 hands:)
October 16, 2012

Math
An invoice of $12,000 is dated April 5. The terms 5/10,n/30 are offered. Find the amount due if the discount is earned. Show your work.
October 12, 2012

chemistry
If i have .0030M BaSO4 how do I calculate the moles of sulfate?
October 10, 2012

physics
a plane needs to fly at 40 degrees n of e when flying through a wind that blows 80 mph @ 70 degrees S of E. If the plane goes 320 mph in still air in what direction should the plane aim?
September 27, 2012

Physics
A stone is dropped from the top of a well. If the well is 23.1 meters deep, how long with the stone take to reach the bottom?
September 16, 2012

Physics
An object with a mass of 3kg is dropped from 56.3 meters. How far above the ground is it's kinetic energy 1073J?
September 16, 2012

physics
A metal sphere of radius 5.00 cm is initially uncharged. How many electrons would have to be placed on the sphere to produce an electric field of magnitude 1.59 105 N/C at a point 7.98 cm from the center of the sphere?
September 12, 2012

AP Chem
how many milliliters of 0.10 M HCl must be added to 50.0 mL of 0.40 HCl to give a final solution that has a molarity of 0.25 M?
August 21, 2012

Math
4% x 60month x 2000= 4800 I am really struggling with this problem.
May 29, 2012

Math
What would the rate of return be on an Individual Retirement Account with a contribution of $2000.00, at 4% Interest rate, for 5 years?
May 29, 2012

math algebra
what are 4 consecutive integers whos sum is -2
May 21, 2012

English (Mrs,Sue!!)
Mrs.Sue, I wrote a paper on research proposal. Now, my teacher is asking us to write the steps on how we wrtoe the paper. Can you reword these questions for me? thank you so much!! "What techniques did you use as you thought through the issue? " "What prewriting...
May 3, 2012

Ms.Susy Please Help With Time!!!!!!
the answer is 5:30 hours
April 23, 2012

physics
+y| / F | / | / | / /a_ _ _ _ _ +x 40N This is pretty much what the picture looks like. Your answer was incorrect!
April 20, 2012

physics
"Only two forces act on an object (mass = 3.90 kg), as in the drawing. (F = 76.0 N.) Find the magnitude and direction (relative to the x axis) of the acceleration of the object. " (The angle is 45 degrees and the horizontal force is 40N)
April 20, 2012

physics
"Only two forces act on an object (mass = 3.90 kg), as in the drawing. (F = 76.0 N.) Find the magnitude and direction (relative to the x axis) of the acceleration of the object. " (The angle is 45 degrees and the horizontal force is 40N)
April 20, 2012

Math
Is my answer correct then??
April 12, 2012

Math
Thank you!!
March 15, 2012

Math
R varies jointly as S and the square of T. If R is 32.4 when S=0.2 and T=9, find R when S=0.5 and T=5. I believe the answer is R=25, could someone check this for me?
March 15, 2012

Math
for his new room Daren will need 154 feet sq of wall to wall to cover of his new square room. what is the length of each wall of his room?
March 13, 2012

statistics
How do you find standard deviation?
February 27, 2012

Physics
a 25 kg box is released from rest on a rough inclined plane tilted at an angle of 33.5 degrees to the horizontal. The coefficient of kinetic friction between the box and the inclined plane is 0.200. a. determine the force of kinetic friction acting on the box b. determine the ...
February 25, 2012

Chemistry
Yes it does. Thanks.
February 10, 2012

Chemistry
my work: 243.228= 18.0153 * 4.184* (Tfinal-Tinitial) 1825.228=75.376Tfinal Tfinal= 24.2149 I got this answer and it is incorrect. can u please help me? and confirm the right answer. thanks :)
February 10, 2012

Chemistry
I have this same question on my hw and it is marking me wrong. Can someone please say what the right answer is or confirm it?
February 10, 2012

Chemistry
I still don't get how to do it. I did what you said and it keeps marking me incorrect :(
February 10, 2012

Chemistry
No this is a different person. Thanks I got it.
February 10, 2012

Chemistry
At constant pressure, which of these systems do work on the surroundings? Check all that apply. 2A (g) + B(s) --> 3C(g) 2A (g) +2B (g) -->5C(g) A(g)+ B(g) --> C(g) A (s) +2B(g)--> C(g)
February 10, 2012

Chemistry
For a 5.0 g sample of CoCl3·9H2O, what weight of water (in grams) will be lost if the sample is heated to constant weight (all water driven off)?
February 6, 2012

Film Literature
What was the first comedy movie ever made?
January 27, 2012

math
at a local community college, it costs 150 to enroll in a morning section of an algebra course. Supopose that the varible n stands for the number of students who enroll. then 150n stands for the total amount of money collected for this course. how much is collected if 41 ...
January 26, 2012

9th gradae physical science
teh density of copper is 8.92 g/cm3. If you plotted the mass of copper in grams versus the volume in cubic centimeters, what would the slope of the line be?
January 20, 2012

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