Monday
September 15, 2014

Posts by Jaime


Total # Posts: 94

physics
A superhero is running toward a skyscraper to stop a villain from getting away. As he is moving, he looks up at the top of the building and his line of sight makes a 33.0° angle with the ground. After having moved 300 m, he looks at the top of the building again, and ...
August 9, 2014

Government
economic status.
May 2, 2014

Physict
This question is similar to some on driver's-license exams: A car moving at 50 km/h skids 15 m with locked brakes. Show that with locked brakes at 150 km/h the car will skid 135 m.
April 8, 2014

Physics
2. Boxcar A, with mass of 1500 kg, is travelling at 25 m/s to the east. Boxcar B has a mass of 2000 kg, and is initially at rest. The box cars collide inelastically and move together after they get stuck. What is their combined velocity?
April 8, 2014

Physics
1. Car A, with mass of 1250 kg, is travelling at 30 m/s to the east. Car B is a truck with mass of 2000 kg, travelling to the west at 25 m/s. Assume these two vehicles experience an inelastic collision but do not stick together, and Car A goes off 10 m/s to the west. What will...
April 8, 2014

Math
taxi company has 31 drivers and now has 43 how to find the percentage increase or decrease.
March 5, 2014

calculus area between three curves
also help with Find c>0 such that the area of the region enclosed by the parabolas y=x^2-c^2 and y=c^2-x^2 is 430.
December 2, 2013

calculus area between three curves
find the area of the region for 2y=4sqrt(x) , y=3, and 2y+3x=7
December 2, 2013

language arts
What would a flow map look like on the book The Hunger Games?
September 22, 2013

Math
(5x+1)/7-(2x-6)/4>_-4
September 15, 2013

Math
Y=2x^2 ;(1,2) ,(3,18)
September 15, 2013

Math
5x/7+1/7-2x/4-6/4
September 15, 2013

Math
5x/7+1/7-2x/4-6/4
September 12, 2013

Math
5x+1/7 -2x-6/4
September 11, 2013

logic
what is the truth value of the sentence "P v ~ P"
June 26, 2013

Physics
A roller-coaster car is moving at 20.0 m/s along a straight horizontal track. What is its speed after climbing a 15.0 m hill?
May 5, 2013

Chemistry
Solution A is 2.40M. 20mLs of solution A is transferred to a 250mL volumetric flask and diliuted to volume with water. What is the concentration of the diluted solution?
April 25, 2013

math
(4x^3+5x^2-2x-1)-(3x^2+7x-4)
January 24, 2013

math
What is (-2)^2 What is (-2)^3
December 12, 2012

algebra
*simplifying rational expressions a. 6x+12/4-x b. 3x^2/12-2x
November 13, 2012

algebra
traveling fromchicago to kansas city is a 540 mile trip. A small plane, facing a headwind (going against the wind), took 9 hours to get to kansas city. on the return trip to chicago the plane had a tailwind ( going with the wind) and the trip took only 6 hours. What was the ...
October 28, 2012

algebra
A 40 inch board is cut into two pieces so that the shorter piece is two-thirds of the length of the longer piece. What are the lengths of the two cut pieces?
October 28, 2012

algebra
A: 7x+7y=-77 B: 20x-5y=-35
October 28, 2012

Math
In a right triangle, the middle angle is 12 more than twice the smallest angle. What are the measures of the smallest and middle angles?
October 9, 2012

math
jenny's company has two photocopying machines, one of which is older and slower than the other. In fact, the newer machine can put out four-thirds as many copies as the older machine in the same amount of time. If, while running at the same time, together they produce 560 ...
October 1, 2012

math
Roberto and Luisa Barron Lopez each work full time jobs, and Luisa's mother, Carmena, collects a monthly pension of $628. Between the three of them, their total household income is $4238 each month. If Luisa earns $1772, how much does Roberto earn each month?
October 1, 2012

math
on her first two math tests, Gracie has an average score of 86. If she got a score of 92 on the first test, what is her score on the second test?
September 29, 2012

Macro Eco
The belief that monetary policy can be effective in changing aggregate demand and that the money supply is the critical monetary variable is associated with: Answer a Modern Keynesians. b Monetarists. c Supply-side economists. d New classical economists.
April 26, 2012

Chemistry
In a coffee cup calorimeter, 50.00 mL of HNO3 (aq) and 50.00 mL of KOH(aq) were mixed. The temperature of the resultant solution increased 6.5 C. What is the Delta H of this reaction?
April 8, 2012

trig
What is cosx=1/2?
March 22, 2012

Statistics/Chi Square
I have a question to do in which the efficacy of a drug used to treat panic disorder is tested. Patients are given a placebo for one week and then the drug for one week, and the number of panic attacks is measured for each week. The data looks like this: Placebo Drug 0 0 2 1 0...
February 29, 2012

Statistics
For a math assignment we need to design a dice roll game with different expected values of winning. The game should require a player to make a bet on the sum of one roll of two dice. If the dice sum to that number, the player wins; otherwise, he loses. We need to create a fair...
February 1, 2012

Linear Algebra
Let W be the set of all polynomials p(t) in P3 such that p(0)=0. Show that W is a subsapce of P3 and find a basis.
November 19, 2011

Math
A cafe holds 300 coffee mugs. 175 of those coffee mugs do not have handles. Estimate the percent of mugs that have handles.
October 30, 2011

SCIENCE
Craig sees a glass with ice tea sitting on the table. He notices that there is a great deal of moisture on the outside of the glass and a puddle of water on the table. He asks his family what they think causes the water to form on the outside of the glass. This is what they ...
October 20, 2011

Geometryy
given that sec theta = radical13/whole number 3, and csctheta<0 find sin theta using the 2different methods; 1)using the "x-y-r" definition 2) using identities only
September 2, 2011

Geometry
Use the special triangles to find the exact values of the following: 1) csc45degrees 2)sec30degrees 3)longest side of a 30-60-90 triangle if the side opposite the 60degree angle is 5radical3
September 2, 2011

Physics
17
July 11, 2011

Calculus AB
Let R be the region bounded by the graphs of y=sin(pi x) and y=(x^3)-4x, as shown in the figure above. (a) Find the area of R. (b) The horizontal line y=-2, x=2, x=-1. Write, but do not evaluate, an integral expression for the area.
March 11, 2011

Chemistry
What is the balanced equation of HClO4(aq)+Sr(OH)2(aq)
December 21, 2010

algebra
12x-6=9x
September 9, 2010

math/ measurment
What is the measure of the point angle for a star-shaped polygon with 8 points and a dent angle of 130 degrees? Is there a formula to figure this?
July 24, 2010

math/probability
I was on that line of thinking as well but there are four possible answers and that doesn't match any of them. The four possible answers are: A) 0.00000003 ; B) 0.1000 ; C) 0.00000025 ; and D) 0.00000028 I really want to understand how to work these problems but I am so lost.
July 24, 2010

math/probability
For some reason I can not get my head around probability. Please show me how to work the problem not just the answers. A class has 11 students who are to be assigned seating by lot. What is the probability that the students will be arranged in order from shortest to tallest? (...
July 24, 2010

Math / Probability
In a certian lottery, 4 differnt numbers between 1 and 11 inclusive are drawn. These are the winning numbers. A player selects 4 different numbers between 1 and 11. What is the probability that the player has all winning numbers?
July 24, 2010

math
find the volume of a tent having the shape of a rectangular solid of length 13 ft, width 12 ft, and heihght 8 ft topped by a rectangular pyramid of the same width and length with height 5 ft
July 2, 2010

math
how may polygon arrangments does a semi-regular tessellation have? a) exactly three, b) exactly two or three, c) exactly four, d) exactly two of four
July 2, 2010

Math
A standard deck of cards is made up of four suits with 13 cards in each suit (total of 52 cards). If we randomly sample five cards from a standard poker deck, find the probability that all five cards selected are clubs.
June 21, 2010

Math
Expected value = (20,000 x 0.7) - (3,000 x 0.3) 14,000 - 900 13100
June 21, 2010

chemistry
The answer is C).015 Find x through the quadratic equation x^2^ +(1.4E-3)x - (2.8E-5)=0
May 13, 2010

Business Law
Dale Emerson served as the chief financial officer for Reliant Electric Company, a distributor of electricity serving portions of Montana and North Dakota. Reliant was in the final stages of planning a takeover of Dakota Gasworks, Inc. a natural gas distributor that operated ...
April 27, 2010

Calculus
sed
April 17, 2010

chem
how do i write a balanced equation for the reaction for Calcium Carbide, CaC2, acetylene gas, C2H2, and calcium hydroxide, Ca(OH)2 are produced
April 13, 2010

chem
if you cann get 5candies for 7dollars, then how many candies will 33 dollars get you?
February 10, 2010

4th grade
65
January 20, 2010

His115
What political events and social viewpoints made a federal constitution and government essential?
December 2, 2009

spanish
*No, estoy cansado. *Donde esta la escuela? *Es muy romantico?
September 23, 2009

spanish 2
Mi musica favorita es hip hop. Or Mi musica favorita es el hip hop.
September 23, 2009

spanish 2
Because you are asking "Where are we?" and you would answer "We are". "We are" in spanish is Estamos.
September 23, 2009

English 3
I'm writing an essay comparing and contrasting two of Edgar Allan Poe's poems, "Annabel Lee" and "The Raven". I'll be comparing and contrasting the theme, rhyme scheme, irony and the use of figurative language. I have an idea of what I will be ...
August 18, 2009

math
What is the product of 65.5 ' 0.2?
August 2, 2009

critical thinking
This looks like hasty generlization
May 31, 2009

critical thinking
I know it is a statistical fallacy, and it represents a false causality, I just can't seem to pinpoint the specific fallacy.Thank you for your time and help. I appreciated it.
May 31, 2009

critical thinking
I am confused then, I originally thought it was an ad hominem...but then I moved to a smokescreen, but after reading a couple of inserts they did not make sense...I read the cite, and it (post hoc) defiantly does not fit. Maybe I am overanalyzing the definitions. When you say ...
May 31, 2009

critical thinking
Is it a proof surrogate(for rhetoric) and for fallacies is it a post hoc
May 31, 2009

critical thinking
I have 4 out of 50 questions left...I cannot figure out the last two rhetorical questions, or the last two fallacy questions. What type of rhetorical device are these? 1. Very little research has been done using properly matched groups with a control group, the gold standard ...
May 31, 2009

Biochem
Describe the one dehydration reaction in glycolysis. Include reactants, products, enzyme, and which step it is. I know that it is step 6 and I believe that the reaction uses glyceraldehyde-3-phosphate dehydrogenase to convert glyceraldehyde-3-phosphate into 1,3-...
April 6, 2009

physics
Air streams horizontally past a small airplane's wings such that the speed is 70.0m/s over the top surface and 60.0m/s past the bottom surface. If the plane has a wing area of 16.2m^2 on the top and on the bottom, what is the net vertical force that the air exerts on the ...
January 29, 2009

physics
sorry repeat. not needed
January 27, 2009

physics
a solid aluminum ingot weighs 89N in the air. what is its volume? (b) the ingot is suspended from a rope and totally immersed in water. What is the tension in the rope?
January 27, 2009

Physics
a solid aluminum ingot weighs 89N in the air. what is its volume? (b) the ingot is suspended from a rope and totally immersed in water. What is the tension in the rope?
January 27, 2009

science
since the plants and animals are flooded by the saltwater, the presence of so much salt would put them in a "hypertonic" environment, meaning that there is more solute present (in this case salt) than water. Plants and animals have to have a certain balance of salt ...
January 20, 2009

Physics
For the radius it is supposed to be r^2. Would I use 10.0cm^2 or 5cm^2? and would I convert that value to meters? Also where did the 1.41s come from? Thank you
January 20, 2009

Physics
Four identical masses of 800kg each are placed at the corners of a square whose side length is 10.0cm. What is the net gravitational force (magnitude and direction) on one of the masses, due to the other three? I think I have to separate the four masses but I'm not sure ...
January 20, 2009

Physics
In a Cavendish balance apparatus suppose that M1= 1.10Kg, M2= 25.0Kg, and the rod connecting the M1 pairs is 30.0cm long. If, in each pair, M1 and M2 are 12.0cm apart center-to-center, find (a) the net force and (b) the net torque (about the rotation axis) on the rotating part...
January 19, 2009

Statistics
X = 7 and SX2 = 21. A new variable Y is created by multiplying each X by 3. What are SY and SY2 equal to ? I do not understand.
January 17, 2009

Chemistry
How do you convert umol/m3 to umol/m2?
October 28, 2008

Physics
A 67.0 kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic friction are .800 and .460 respectively. A) what horizontal pushing force is required to just start the crate moving? B) What horizontal pushing force is required to slide the ...
September 2, 2008

accounting
for each of the following items, give an example of a business transaction that has described effect on the accounting equation: Increase an asset and increase a liability. Increase one asset and decrease another asset. Decrease an asset and decrease owner's equity. ...
July 27, 2008

Trignonmetry
Please find the exact values: Tan(-3p/4)= Sec(2p/3)= Csc(7p/4)= Cot(11p/6)= p=pie
July 13, 2008

Trignonmetry
Is there a formula to find the correct asymptotes on y=3cos(4x+p/2)-3 p=pie Now I know that answer is -p/8<x<3p/8 How do I find the asymptotes?
July 13, 2008

english
Is time, summer and winter concrete or abstract words?
May 22, 2008

physics
A woman finds the front windshield of her car covered with ice at -12.6°C. The ice has a thickness of 4.80 10-4 m, and the windshield has an area of 1.25 m2. The density of ice is 917 kg/m3. How much heat is required to melt the ice?
April 14, 2008

English
I need help identifying the main arguments in the essay as well as the supports used. I believe the thesis is: If children are taught their place in the environment they will look at other species with a sense of fellowship and community. I am also supposed to evaluate the ...
March 15, 2008

math: repost with corrections
p. 942 #5 This is a three-part question: a. the graph y = f(x) in the xy-plane has parametrization x=x, y=f(x), and vector formula r(x) = xi + f(x)j. Use this to show that if f is twice-differentiable, then k(x) = ((absvalue f''(x))/[1+((f'(x))^2]^3/2 b. use the ...
December 10, 2007

math
Hi This is a three-part question: a. the graph y = f(x) in the xy-plane has parametrization x=x, y=f(x), and vector formula r(x) = xi + f(x)j. Use this to show that if f is twice-differentiable, then ((absvalue f''(x))/[1+((f'(x))^2]^3/2 b. use the formula for k in...
December 8, 2007

Cal
circle x^2 +y^2 = 1. r(t) = (sint)i +(cost)j at both pi/4 and pi/2 Find velocity & acceleration Thx!
December 8, 2007

social studies
why was george washington important
September 4, 2007

9the Grade Honours English
I need info on Aphrodite,Apollo,Atalanta,Perseus,Cerberus and the Minotaur for my honors English class.I have to make a book about them two pages per person.Please help!!! The links in this previous response by SraJMcGin should give you all the information you need: http://www...
July 13, 2007

Math
The greater of two consecutive even integers is six less than twice the smaller. Find the integers. The greater of two consecutive even integers is six less than twice the smaller. Find the integers How about x + 2 = 2x - 6 almost .. it's x + (x+2)=2x-2
June 3, 2007

Math
The greater of two consecutive even integers is six less than twice the smaller. Find the integers. Let the smaller be x. That means that the larger is x+2. From your statement x+2=2x-6 Solve for x. I hope this helps. Thanks for asking.
June 3, 2007

Science help please...
Each element has a different set of energy levels. Use this fact to explain why the colour of the light emitted by an element in the gaseous stare is characteristic of the element? Ive read and researched Quantum physics for over a week now and i still dont understand this ...
March 5, 2007

Science
A drop of oil (volume 0.05cm3) is released from a medicine dropper on to the calm surface of a pond where it spreads out to cover an area of 40cm2. Assume that the oil film has a uniform thickness equal to the diameter of a oil molecule. Calculate the diameter of an oil ...
March 5, 2007

pre-algebra
Which is heavier, The Thrust SCC that is 54 ft long and weighs 7 tons or the Spirit of America that is 47 ft long and weighs 4 tons?? The numbers need to be put into an inequality equation! Unless you have not adequately stated your question, no equation is needed. The answer ...
July 6, 2005

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