Saturday
November 29, 2014

Posts by David


Total # Posts: 1,711

Cost Accounting
A company’s sales volume averages 4,000 units per year. Recently, its main competitor reduced the price of its product to $48. The company expects sales to drop dramatically unless it matches the competitor's price. In addition, the current profit per unit must be ...
May 20, 2014

Chemistry
When 155 mL of water at 26 degrees Celsius is mixed with 75 mL of water at 95 degrees Celsius, what is the final temperature of the mixture? (d Water = 1.00 g/mL) Im really stuck on this problem and chemistry isnt exactly my strong point, thanks in advance!
May 19, 2014

physicss
a point charge -q, mass m is flying up at the speed v(0)= v 0 from the distance x(0)=L from a uniformly and positively charged thin plate, its linear density equal p. determine the maximum distance of a particle from the plate
May 19, 2014

Physics
a point charge -q, mass m is flying up at the speed v(0)= v 0 from the distance x(0)=L from a uniformly and positively charged thin plate, its linear density equal p. determine the maximum distance of a particle from the plate
May 19, 2014

algebra
Let f(x)= 2x^2 +7 and g(x)= x – 6. (a) Find the composite function (f*g)(x) and simplify. Show work. (b) Find ( f*g)(1). Show work.
May 9, 2014

Pre algebra
A cyclist rides her bike at a speed of kilometers per hour. What is this speed in kilometers per minute? How many kilometers will the cyclist travel in minutes? Do not round your answers.
April 26, 2014

algebra
when P dollars is invested at interest rate (I), compounded annually, for (t) years, the investment grows to (A) dollars, where A=P(1+I)^3. Find the interest rate if $40,960 grows to $49,130 in 3 yrs.
April 22, 2014

Maths
Fred is 10 yrs older than Ted. In 3 yrs time Fred will be 3 times as old as Ted. Let Fred be x yrs old now. Write an equation to represent this situation. Solve equation and state how old each person is now.
April 20, 2014

Geometry
tha area of a regular octagon found by decomposing the octagon into a rectangle into trapezoids is ________ m2
April 10, 2014

chemistry
I want to make sure I am correct in classifying whether the following properties of hydrogen are chemical or physical. thanks 1. hydrogen will burN in in oxygen to form water. CHEMICAL 2. hydrogen does not support combustion. CHEMICAL 3.hydrogen is usually found combined with ...
April 8, 2014

Chemistry
I am not sure if I understand how to balance this correctly. I need to write a balanced equation for the decomposition of solid copper(ii) sulfate to form gaseous sulfur trioxide and solid copper (ii) oxide. 2CuSO7 = CuSO4 + SO3 + CuO
April 8, 2014

Chemistry
Could someone please let me know if I have the answer to the following question correct? If my answer is incorrect could you please help me answer this question. what is the difference between 3M and 9M of sulfuric acid? I think the difference is that there are 3 moles of ...
April 7, 2014

math
A piece of rope is in the shape of a 12ft. by 16ft. rectangle. The same rope is then shaped into a square. What is the area of square?
March 30, 2014

Physic Angular momentum and torque
What is the angular momentum of a 1.0kg uniform cylindrical grinding wheel of radius 19cm when rotating at 1700rpm ?How much torque is required to stop it in 4.6s ?
March 29, 2014

Physic Moment of inertia
Determine the moment of inertia of a 11.1kg sphere of radius 0.794m when the axis of rotation is through its center.
March 29, 2014

Algebra
Graph the solution to the inequality on the number line |4u-8|=>12
March 25, 2014

physics
The micrometer (1 μm) is often called the micron. (a) How many microns make up 1.5 km? (b) How many centimeters equal 1.5 μm? (c) How many microns are in 1.5 yd?
March 23, 2014

algebra
A box of candy contains two types of chocolates. One type is made with nuts, and the other type is nut free. The box contains 3 times more candies with nuts than candies without nuts. Johnny pulls a candy out of the box at random. What is the probability that Johnny pulled out...
March 20, 2014

chemistry
Combustion analysis of a hydrocarbon produced 33.01 g {\rm CO}_2 and 27.04 g {\rm H}_2{\rm O}. Calculate the empirical formula of the hydrocarbon. Express your answer as a chemical formula.
March 17, 2014

Chemistry Urgent
Calculate the DHof for the following reaction under standard state conditions: 2 Ag2S(s) + 2 H2O(l) ---> 4 Ag(s) + 2 H2S(g) + O2(g) Given the following information: Ag2S(s) ÄHof = -32.6 kJ/mol H2O(l) Ä Hof = -285.83 kJ/mol H2S(g) ÄHof = -20.6 kJ/mol
March 9, 2014

Chemistry Urgent
Consider the following problem: Target: 2NOCl(g) ? N2(g)+ O2(g)+Cl2 (g) ?Hrxn= ? Steps: 1. 1/2 N2(g) + 1/2 O2(g)? NO(g) ?H= 90.3 kJ 2. NO(g) + 1/2 Cl2(g) ? NOCl(g) ?H= -38.6 kJ As you determine the ¥ÄHrxn value for the target equation above, what must be done to step ...
March 9, 2014

Chemistry
Consider the following problem: Target: 2NOCl (g) ¡æ N2 (g) + O2 (g) + Cl2 (g) ¥ÄHrxn= ? Steps: 1. ¨ö N2(g) + ¨ö O2(g) ¡æ NO(g) ¥ÄH= 90.3 kJ 2. NO(g) + ¨ö Cl2(g) ¡æ NOCl(g) ¥Ä H= -38.6 ...
March 9, 2014

algebra (solve for y)
woops there is a 2 in front of the first e&(2y). Proper equation: 0=2e^(2y)-e^(y)
March 4, 2014

algebra (solve for y)
0=e^(2y)-e^(y) Need to solve for y here, don't understand why answer is -ln(2) in the book. Thanks.
March 4, 2014

poetry part 2
I think its C.Peace
March 2, 2014

Physics
No, youa are wrong. It is not mVa = .1m(Va-V) + .9mVb it is mVa = (-).1m(Va+V) + .9mVb it is not 2, it is 20/9
March 1, 2014

Math
what is the sum of the solutions of the equation |2x-7|=11? A) -9 B) -7 C) 5 D) 7 E) 9 ***What is the most efficient way to solve this?
March 1, 2014

English
Can you help me identify the subordinate clause in the sentence The camel is the only pack animal that can stand the test of the Sahara. Would the subordinate clause be "than can stand the test of the Sahara?"
February 25, 2014

English
Having trouble identifying subordinate clauses in the following sentences. 1. The airplane that we saw can land in only a few airports in this country. I think for this sentence the subordinate clause would be "that we saw." 2. The coin that I purchased is an old ...
February 25, 2014

English
To your question Which of these clauses cannot stand alone? The hummingbird is the only bird that can fly backward, I would say "that can fly backward" cannot stand alone.
February 25, 2014

English
In the sentence, The hummingbird is the only bird that can fly backward, the verb is either "is" or "can fly" I cannot determine what the subordinate clause is.
February 25, 2014

English
Find the subordinate clause in the sentence The hummingbird is the only bird that can fly backward.
February 25, 2014

English
I think the correct sentence is number 2, "on the hill."
February 25, 2014

Geometry
According to the given information, segment AB is parallel to segment DC and segment BC is parallel to segment AD.. Construct diagonal A C with a straightedge. It is congruent to itself by the Reflexive Property of Equality. ________________. Angles BCA and DAC are congruent ...
February 25, 2014

chemistry
A gas with a volume of 6.65 L at a pressure of 1.22 atm is allowed to expand until the volume raises to 54 L. What is the new pressure (in atm)?
February 23, 2014

Biology
A typical organism that might occupy a forest in the southwestern United States is a a. Cactus b. grizzly bear c. parrot d. polar bear
February 20, 2014

ITT Tech
Simplify -(-15x)-3x
February 18, 2014

Maths
Calculate the simple interest on R3 500 invested at 6% per annum for 3 years
February 9, 2014

literary
What emotion is associated with weariness? I'm supposed to analyse the emotions that are expressed within a text, and the beginning is happy and jubilant while the second half adopts a more weary mood, so i'm wondering what emotion would i use?
February 8, 2014

math
least to greatest 3/4 2/3 7/8
February 4, 2014

Math
A math teacher wishes to use groups of 5 and/or 7 students for a class assignment. When she tries to make assignments she notices that it cannot be done with the number of students in her class. However, if the number of students were any larger, the assignments could be made...
January 30, 2014

physics
Wavelength in a Closed Column Here is the prompt: We place a speaker near the top of a drinking glass. The speaker emits sound waves with a frequency of 3.75 kHz. The glass is 14.1 cm deep. As I pour water into the glass, I find that at certain levels the sound is enhanced due...
January 30, 2014

Math
How do I give a BIG THANK YOU TO MS SUE?
January 28, 2014

Math
Hi Ms Sue Thank you sooooooo much I kinda thought that was it but........ there are 6 blueberry right?
January 28, 2014

Math
I was out of school for 4 days! I tried to catch up but....I need help with There are 20 muffuns on a plate. 2/5 are chocolate. 3/10 are vanilla. How many chocolate how many vanilla? Challenge: Rest are blueberry how many blueberry? Can somebody answer this for me and show me ...
January 28, 2014

chemistry
equation for joules needed to increase water temp
January 28, 2014

ASAP Help thankies everybody History
Ms. Sue? is it a?
January 28, 2014

ASAP Help thankies everybody History
No it is a
January 28, 2014

IT WEB SYSTEMS
Provide a real-life application in which you manipulate data in a string or an array format. Describe the situation, manipulation process, and data result.
January 27, 2014

Science
I read the article already, but I don't understand what is the answer. I am not sure if the question is referring to the the complementary base or something?
January 24, 2014

Science
RNA is to U(Uracil) as DNA is to ? a. Cytosine (don't think so) b. Guanine (don't think so) c. Thymine d. Adenine
January 24, 2014

math
If a test has 25 questions with 4 possible answers per questions, how many possible answer combinations are there?
January 24, 2014

Question help
Reading titles and headings, and trying to get an overview of what lies ahead in a reading passage is called: A:questioning B:relating C:surveying D:reciting
January 21, 2014

Geometry
Use the figure of a square pyramid to answer the following questions. a.) Find the total surface area of the pyramid. b.) Find the volume of the pyramid. Do not answer them. I know How to find the answer. Surface Area is squared right?
January 17, 2014

Geometry
A person who is 5 feet, 6 inches (5.6 feet) tall casts a shadow (from N to S) that is 12 feet long. The distance along the ground from the person (N) to the flagpole (G) is 18 feet. Find the height of the flagpole (FG) showing all calculations.
January 17, 2014

math
ann uses three 1/4 size strips to model 3/4. She wants to use 1/8 size strips to model an equivalent fraction. how many 1/8 size strips will she need?
January 16, 2014

geometry
A person who is 5 feet, 6 inches (5.5 feet) tall casts a shadow (from N to S) that is 12 feet long. The distance along the ground from the person (N) to the flagpole (G) is 18 feet. Find the height of the flagpole (FG) showing all calculations. What is the length of SP and PF?
January 14, 2014

Ashford
Assimilation
January 11, 2014

Science
How much heat is absorbed when 500g of water goes from 25 to 35 degrees
December 29, 2013

Biology
How many chromosomes are in a human blood cell? What term describes a picture of the human chromosomes arranged in pairs?
December 13, 2013

Physics
Find the tension T2 of the box hanging from the rope if 1 = 25°, 2 = 65°, T1 = 60.58 newtons, and W = 143.4 newtons.
December 11, 2013

math
If the circumference of a circle is 16 pi, what is its area ?
December 6, 2013

math
In triangle XYZ, the measure of angle Y is twice the measure of angle X, and the measure of angle Z is three times the measure of angle X, what is the measure of angle Y ?
December 6, 2013

Math
-1,0,1,0,1,2,3,6,11,20,37,68,125,230,423,778...
December 5, 2013

Biology
Do breeders observe the genotypes or phenotypes in their organisms?
December 5, 2013

geometry
Kendra is flying a kite 35 feet in the air. The angle of depression from the kite to where Kendra holds the string is 32 degrees. If Kendra holds the string 3 feet off the ground, what is the distance from her hands to the kite? Round your answer to the nearest tenth.
December 3, 2013

Physics
y= -0.42 The region isn't between the wires
December 2, 2013

elementary statistics
A statistics professor is used to having a variance in his class grades of no more than 100. He feels that his current group of students is different, and so he examines a random sample of midterm grades (listed below). At 0.05 alpha level can it be conculded that the variance...
November 30, 2013

elementary statistics
A statistics professor is used to having a variance in his class grades of no more than 100. He feels that his current group of students is different, and so he examines a random sample of midterm grades (listed below). At 0.05 alpha level can it be conculded that the variance...
November 30, 2013

Trigonometry
Cot θ = 1/Tan θ = Cos θ/Sin θ = - SQRT of 15/7 =
November 28, 2013

Trigonometry functions
find the reference angle of -11pi/3
November 28, 2013

Trigonometry functions
sketch the angle 2pi/3
November 28, 2013

Trigonometry
Write sin(125°) in terms of its cofunction. Make sure your answer is a function of a positive angle.
November 28, 2013

Trigonometry
Write sin (125°) in terms of its cofunction. Make sure your answer is a function of a positive angle
November 28, 2013

Trigonometry
find the exact value of sin 2α if cos α=4/5 (α in quadrant I)
November 28, 2013

Trigonometry
find the exact value of tan 2β if sin β=5/13 (β in quadrant II)
November 28, 2013

Trigonometry
evaluate cot 2x = 5/12 with 0<=2x<=pi find cos x and sin x and tan x?
November 28, 2013

Trigonometry
if cot 2θ = 5/12 with 0≤2θ≤π find cos θ, sin θ, tan θ
November 28, 2013

Trigonometry
if cot 2x = 5/12 with 0<=2x<=pi
November 28, 2013

Trigonometry
Write sin(125°) in terms of its cofunction. Make sure your answer is a function of a positive angle.
November 28, 2013

pre-alg
Oh, I get it. The question is asking you what scale you are going to use for your scale drawing. Here is the definition from my Geometry Book: Scale- a ratio that describes how the dimensions in a scale drawing are related to the dimensions of the actual object. An example of ...
November 25, 2013

Finance
If the bank holds $65 million in deposits and currently holds bank reserves such that excess reserves are zero, what required reserves ratio is implied?
November 18, 2013

Science
What is the structure that directs chromosome movement during mitosis and aids in the formation of the microtubule scaffolding that pulls on the chromosomes? a. Centrosome (maybe) b. Nucleosome (don't think so) c. Spindle (maybe) d. Cytokinesis(don't think so)
November 8, 2013

basic rigging trade terms quiz
an eyeabolt is a piece of rigging hardware wiht a ------ which means it has a series of spiral grooves cut into it.
November 6, 2013

basic rigging trade terms quiz
if the ----- is showing, the sling is not safe for use.
November 6, 2013

Math
26-17+15
November 5, 2013

Mythology
Where did the box with Perseus and Danae float to?
October 27, 2013

Mythology
According to some stories, Daedalus had a talented nephew who was pushed off a tower. Minerva/Athena caught him and changed him into a Perdix. What kind of bird is a Perdix?
October 27, 2013

Science
Thanks.
October 27, 2013

Science
I don't know I think B.
October 27, 2013

Science
So what is the answer?
October 27, 2013

Science
Ribosome: protein synthesis: mitochondria: What comes next? a. cell support b. energy release (don't think so) c. nutrient storage (don't think so) d. protein transport
October 27, 2013

Science
What plant cell organelle contains its own DNA and ribosomes?
October 27, 2013

Biology
What happens when a substance dissolves in the watery solution outside of a cell and equilibrium is disrupted. a. Water from the cell will move into the solution b. water from the solution will move into the cell c. the pores in the cell membrane will become clogged with the ...
October 24, 2013

History
Thanks for all your help Ms. Sue!
October 21, 2013

History
What are the midway islands, Ms. Sue?
October 21, 2013

History
Also, I have another question: During World War I what is a place that has strategic value in the middle of the Pacific Ocean? a. Hawaii b. Midway Islands
October 21, 2013

History
Ms.Sue I am wondering if you know where the Titanic left in Great Britain?
October 21, 2013

History
Well, I asked in class today and the teacher said the questions were right. So, I was thinking that the titanic was sailing between the US and England. I think the 3 countries that make up the triple entente are france, russia, and great britain
October 21, 2013

History
The Titanic was a ship that sailed between which 2 countries? a.Britain b.United States c.England What 3 countries make up the triple entente? a.France b.Russia c.Great Britain d.England Each word can only be used once for each question.
October 21, 2013

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