Wednesday
May 4, 2016

# Posts by CJ

Total # Posts: 285

Solid Mensuration
A closed cylindrical container 10 feet in height and 4 feet in diameter contains water with depth of 3 feet and 5 inches. What would be the level of the water when the tank is lying in horizontal position?
April 27, 2016

alegbra
How can you represent the terms of a sequence explicitly? How can you represent them recursively?
February 23, 2016

Maths
The probability that I have to wait at the traffic lights on my way to school is 0.45. Find the probability that on 3 consecutive mornings I have to wait: A) Once B) Twice
February 14, 2016

Physics
Damon, Thanks for answering my question. What I don't understand is why gravity is not an issue in this problem? Could you please explain?
February 8, 2016

Physics
A penguin has a mass of 13 kg. The penguin slides over the ice for a distance of 50.7 m in 1.7 s before coming to a complete stop. The penguin uniformly accelerates during the entire time period. What is the net force exerted on the penguin?
February 8, 2016

Elementary Math
Could you explain I am still a little confused
February 1, 2016

Elementary Math
The question stated: Write a numerator that makes the statement true. 1/2< /10 < 4/5 My answer is 7/10 am I correct< If not please explain. Thanks
February 1, 2016

computer
You are having problems on your Windows 7 computer and you pull up Device Manager to see if there are any alerts. Two of your devices have yellow exclamation points over them. What does this most likely indicate? A. A missing driver B. A disabled device C. A deleted device D. ...
January 19, 2016

math
If a polynomial equation p(x)=0 has 3+4i as a solution 3-i 4-3i 4+3i 3-4i
January 11, 2016

math
How are the real solutions of a quadratic equation related to the graph of the quadratic function?
October 29, 2015

math
How are the real solutions of a quadratic equation related to the graph of the quadratic function?
October 27, 2015

algebra 2
October 21, 2015

algebra 2
A landscaper is designing a flower garden in the shape of a trapezoid. She wants the shorter base to be 3 yards greater than the height and the longer base to be 7 yards greater than the height. She wants the area to be 295 square yards. The situation is modeled by the ...
October 21, 2015

algebra 2
How does writing equivalent equations help you solve a system of equations?
September 25, 2015

math
September 20, 2015

algebra 2
How can you model data with a linear function? can i have example to please
September 11, 2015

algebra 2
How can you model data with a linear function?
September 9, 2015

Math
Explain how knowing that 5 divided by 8 = 0.625 helps you the decimal for 4 5/8.
September 8, 2015

check my work
8. Which of the following is a successful result of the Reconstruction? (1 point) states could limit voting rights in elections more African Americans could go to school segregation kept the races apart or separate sharecropping helped poor blacks own land 6. Which of the ...
September 2, 2015

u.s. history
11. Explain two ways in which sectionalism caused conflict or tension in the United States during the early 1800s. Then explain how sectionalism affects economics and politics in the United States today. (10 points)
September 1, 2015

u.s. history
thanks so much
August 24, 2015

u.s. history
Use the quote below to answer the following question. “[T]hese Powers . . . are so distributed among the Legislative, Executive, and Judicial Branches, into which the general Government is arranged, that it can never be in danger of degenerating into a monarchy, an ...
August 24, 2015

u.s. history
Why does George Washington support the Constitution? To what does “a Constitutional door is left open” refer?
August 24, 2015

statistics
Consider the events of drawing an ace, then draw another ace, followed by a queen, one at a time without replacement (from a standard deck of cards). What is the probability of drawing an ace, then another ace, then a queen? please show explanation
August 12, 2015

math
how do I write 6 2/3 + 3 4/5 to its simpliest form. This is how I did it. Could someone tell me if its write?. Or give me the proper steps to doing this? 6 2/3 + 3 4/5 = 20/15 + 19/15= 39/15= 2 9/15 = 2 3/5
August 8, 2015

Chemistry
What is the empirical formula for a molecule containing 52.20 grams manganese (Mn0 and 3.80 grams of Carbon (c)?
July 25, 2015

science
Fan can accelerate from the starting blocks to running 11 m/s down the track in 5 seconds. What is her acceleration?
June 30, 2015

math
My digits are 6,0, and 5. I'm not divisible by 5. What number am I
June 18, 2015

math
5 is graph b btw amy
April 27, 2015

Statistics
A Today/CNN/Gallup Poll of 1015 adults found that 13% approved of the job Congress was doing in 1995. Find the 95% confidence interval of the true proportion of adults who feel this way.
April 8, 2015

chemistry to MathMate
Ok, 5000 times bigger
March 31, 2015

chemistry to MathMate
It is 5 times as big...Ok so the and is 5 diameters....I got it right?
March 31, 2015

chemistry to MathMate
Sorry 5000nm
March 31, 2015

chemistry to MathMate
Length of cylinder is 5x10^–6 micrometers.
March 31, 2015

chemistry to MathMate
So the answer is 5nm? Please bare with me, I need to understand it.
March 31, 2015

chemistry to MathMate
Chemistry - CJ, Tuesday, March 31, 2015 at 10:53pm I am experiencing a major block.... I can't say.... 1micrometer= 1000nm 5micrometer= x..... because I'll get back the same thing So please help me, tell me the answer please.
March 31, 2015

Chemistry
I am experiencing a major block.... I can't say.... 1micrometer= 1000nm 5micrometer= x..... because I'll get back the same thing So please help me, tell me the answer please.
March 31, 2015

Chemistry
Chemistry - MathMate, Tuesday, March 31, 2015 at 2:56pm 1m = 1000 mm (millimeter) 1 mm = 1000 μm (micrometer) 1 μ = 1000 nm (nanometer) If the tube is 1 nm in diameter, then veryify that 5 μm = 5*1000 nm = 5000 nm = how many diameters? Chemistry - MathMate, ...
March 31, 2015

Chemistry
Is it 5 diameters?
March 31, 2015

Chemistry
Nanotubes are rolled up cylinders of graphite with diameters of about 1nanometer, and lengths in micrometers. (I) If a nanotube is 5 micrometers long, how many diameters does this represent?
March 31, 2015

Geometry
an architect designs a rectangular window such that the width of the window is 40 com less than the height. If the perimeter of the window is 500 cm, what are the widths and heights?
March 29, 2015

math
January 27, 2015

math
Two coworkers picked up some writing instruments at the office supply store. Shane selected 3boxes of pencils and 1box of pens, paying \$8. Terrell spent \$6 on 1box of pencils and 1box of pens. What's the equation for shanes total cost? Equation for Terrell total cost? Thanks
January 27, 2015

language arts
stop putting peeps down connexus
January 27, 2015

Math
Since 2007, a particular fund returned 13.8% compounded monthly. How much would a \$4000 investment in this fund have been worth after 4 years?
January 11, 2015

Math
When a number is a multiple of 6, what are the possible values for the ones digit?
December 3, 2014

math
If X = 4 units, Y = 11 units, and Z = 6 units, then what is the volume of the rectangular prism shown above
November 11, 2014

math
Bianca has a total of 25 cent. She has some nickels and pennies. How many different combinations of nickels and pennies could Bianca have?
October 27, 2014

math
Ms. Hernandez has 17 tomato plants that she wants to plant in rows. She will put 2 plants in some rows and 1 plant in the others. How many different ways can she plant the tomato plants?
October 27, 2014

Chemistry
Is there a reaction between Sodium Acetate and Copper (II) Nitrate. If so, what is the balanced equation for it? Also, what type of reaction is it does it form a precipitate?
October 18, 2014

Chemistry HELP
Ba(OH)2 + 2 HCl → BaCl2 + 2 H2O The reactants are present in equimolar amounts, so there is no excess or limiting reactants. (0.0500 L) x (0.600 mol/L HCl) x (2 mol H2O / 2 mol HCl) = 0.0300 mol H2O (4.184 J/g·°C) x (50.0 g + 50.0 g) x (25.82 - 21.73)°C = ...
October 18, 2014

Chemistry
The synthesis of zinc iodide was performed using 1.8912g of zinc and 1.5965g of iodine. Determine the limiting reactant and calculate the theoretical yield of zinc iodide in grams.
October 7, 2014

Chemistry
Aluminum oxide is formed by reaction of excess oxygen with aluminum. 4 Al(s) + 3 O2(g) -> 2 Al2O3(s) Calculate the mass of aluminum required to form 18.2 kg of aluminum oxide if the reaction has a percent yield of 83.4%.
October 2, 2014

Chemistry
Silver chromate may be prepared by the following reaction. 2 AgNO3(aq) + K2CrO4(aq)  Ag2CrO4(s) + 2 KNO3(aq) Calculate the mass of silver chromate produced when 0.623 L of 1.345 M silver nitrate is reacted with 245 mL of 1.89 M potassium chromate.
October 2, 2014

Chemistry
Thank you for such a quick response DrBob222.
September 26, 2014

Chemistry
An aqueous solution of barium nitrate has a density of 1.09 g/cm3. The solution is 18.7% barium nitrate by mass. How many nitrate ions are present in 87.6 dL of this solution?
September 26, 2014

coor. algebra
Okayy so my class is doing conversions annnd.I need help ALOT. 130 meters per second into miles per hour . If you answer can you show me how you got the answer and how to know of the answer is right?
August 11, 2014

math
find the sum of 3/6+4/10+3/30 and reduce to lowest term
July 31, 2014

Global Studies
its mining!
March 13, 2014

Physical Science
Describe convection in a room heated by a radiator.
March 8, 2014

physics
A first capacitor is initially connected to potential source ?. The charged capacitor is then removed from the source and connected to a second initially uncharged capacitor. Determine the final potential across the first capacitor long after the switch is closed.
February 28, 2014

ss --- pls check my work!!!
Yep anonmys is right
February 18, 2014

Chemistry AP
What are the concentrations of benzoic acid and sodium benzoate in a solution that is buffered with a pH of 4.55 and has a freezing point of -2.0 degrees Celsius? (assume complete dissociation and a density of 1.01g/mL for the solution.)
February 5, 2014

US History
Do the philosophies of laissez-faire and survival of the fittest explain why John D. Rockefeller succeeded in Cleveland, and was his success good for the oil industry and the American consumer? Any information would be greatly appreciated, please and thank you!
January 9, 2014

math
Ms. Hernandez has 17 tomato plants that she wants to plant in a rows. She will put 2 plants in some rows and 1 plant in the others. How many different ways can she plant the tomato plants?
November 26, 2013

Physical Science
1. Which equation correctly shows beta decay? (A) 210/82 Pb -> 209/81 Tl + 0/-1 e + y (B) 210/82 Pb -> 209/83 Bi + 0/-1 e + y (C) 210/82 Pb -> 210/83 Tl + 0/-1 e + y (D) 210/82 Pb -> 210/83 Bi + y (E) 210/82 Pb -> 210/83 Bi + 0/-1 e + y 2. The half-life if radon...
November 18, 2013

math
an average sized female spider and a large spider can lay a total of 2100 eggs at one time . The large spider lays 20 times the number of eggs as the average spider. How many eggs does the average spzied spider lay?
November 14, 2013

Physical Science
17. Why can't carbon-14 be used to determine the age of fossils that are several hundred thousand years old? Please and thank you!
November 12, 2013

Algebra 1
4. Two consultants were hired by a company. The total consultant fees were \$18,500. If one consultant had earned \$500 less, each consultant would have been paid the same. How much was each consultant paid? 6. Five cars in a race all finished within 8 seconds of each other. Car...
October 28, 2013

Physical Science
20. Why is ethanol added to gasoline? Can't find this answer in my book, and I've gone back and checked for it like three times. Please and thank you!
October 25, 2013

US History
Which of the following statements about the Platt Amendment is true? A - It guaranteed that Cuba would be independent by 1915. B - It prevented the United States from intervening in Cuban foreign affairs. C - It essentially made Cuba a U.S. protectorate. D - It opened up ...
October 24, 2013

World History
Even though Robespierre was not a defender of women's equality in France, how are his and Etta Pal d'Aelders's arguments similar? When might Sieyes claim that women would be eligible for the equal rights that Etta Palm d'Aelders states that they rightfully ...
October 21, 2013

Physical Science
5. What reactions occurs when a solution of hydrochloric acid, HCl, is mixed with a solution of calcium hydroxide, Ca(OH)2? (A) Cl + Ca(OH) --> HCa + Cl(OH)2 (B) HCl + Ca(OH)2 --> H(OH)2 + CaCl (C) 2HCl + Ca(OH)2 --> 2H2O + CaCl2 (D) 2HCl + Ca(OH)2 --> H2Ca + 2ClOH...
October 16, 2013

Science~
Tami is right I just did it 4/4
October 8, 2013

chemistry
Calculate the amount of heat required to completely sublime 76.0g of solid dry ice (CO2) at its sublimation temperature. The heat of sublimation for carbon dioxide is 32.3 kJ/mol.
September 1, 2013

physics
One end of a meter stick is pinned to a table, so the stick can rotate freely in a plane parallel to the tabletop. Two forces, both parallel to the tabletop, are applied to the stick in such a way that the net torque is zero. The first force has a magnitude of 2.00 N and is ...
July 16, 2013

Science Help
mass = 4.5 kg Compare and contrast the mass and weight of this bowling ball on Earth and the moon.
May 21, 2013

Finance
The most recent financial statements for Retro Machine, Inc., follow. Sales for 2010 are projected to grow by 20 percent. Interest expense will remain constant; the tax rate and the dividend payout rate will also remain constant. Costs, other expenses, current assets, fixed ...
March 20, 2013

Math
If someone is renting a truck that has a 40 gallon tank and it gets 10 miles per gallon and they are traveling 252 miles, what will they pay for gas for the trip?
March 18, 2013

st joseph school
when a traffic light turns green, a car accelerates at a constant rate, the decelerates in the same manner to stop at the next traffic light. The speed of the car, s, is given by the equation, s=-10 /t-8/ + 80 where t is time. Find the time , t, it takes for the car to reach ...
March 17, 2013

Math
24 m of fencing are available to enclose a play area. what would the maximum area be if the fencing only went on 3 sides because the wall is used as the 4th side. Please show you work
February 22, 2013

Econ
If the federal government enacts a tax on a monopoly, how would you expect the additional tax to affect the following: a. Profits of the monopoly b. Output produced by the monopoly c. Prices charged by the monopoly
February 16, 2013

programming (using raptor)
Create a program that determine the shipping cost for an order based on the following table: From \$0.00 \$20.00 \$50.00 \$75.00 To \$19.99 \$49.99 \$79.99 \$1000.00 Price \$2.95 \$3.95 \$4.95 Free
December 3, 2012

math
what two simpler problems can you use to find 9x38
November 14, 2012

Math
four times one number minus a second is 11, and the sum of the numbers is 14. Find the numbers.
October 29, 2012

Math
1)one number is four more than a second number. Twice the second is three more than the first. Find the numbers. 2)four times one number minus a second is 11, and the sum of the numbers is 14. Find the numbers.
October 27, 2012

AP Chemistry
I still don't understand how to get the theroetical yield.
September 19, 2012

AP Chemistry
In the reaction below, 16 g of H2S with excess O2 produced 8 g of sulfur. ? H2S + ? O2 → ? S + ? H2O . What is the percent yield of sulfur? Answer in units of %
September 19, 2012

AP Chemistry
For the reaction ? ZnS + ? O2 →? ZnO+? SO2 , what is the maximum amount of ZnO which could be formed from 14.06 g of ZnS and 5.56 mol of O2? Answer in units of g
September 19, 2012

AP Chemistry
So that would also equal 34 grams right?
September 19, 2012

AP Chemistry
Sulfuric acid (H2SO4) is prepared commercially from elemental sulfur using the contact process. In a typical sequence of reactions, the sulfur is ﬁrst burned: S + O2 → SO2 , then it is converted to SO3 using a catalyst: 2 SO2 + O2 → 2 SO3 . The resulting SO3...
September 19, 2012

AP Chemistry
I converted my 524ml to liters so that became 524000. Then I did 3.16x1655.84. Then converted back to liters. But i just realized i skipped a step, but I don't understand where I get the numbers at for that.
September 19, 2012

AP Chemistry
I don't really understand how to set it up. I'm to figure out my moles for water but after that I'm stuck.
September 19, 2012

math
jane have 4 nickels, 6 pennies, 4 dimes, and 2 quarters. she picks a coin at random. what is the probability that she will pick a nickel or a dime/
September 13, 2012

math
how do you write one third the volume of the pool as an expression
July 17, 2012

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