Saturday
December 20, 2014

Posts by connor


Total # Posts: 139

Pre-Calc
At a swim meet, a parent is videotaping his son from a seat in the stands that is 20 meters past the starting line and 8 meters away from his son's lane. Let x represent the distance the son has swum. a. Write x as a function of (theta). b. At what angle does the parent ...
December 7, 2014

Science
What volume of 0.050M sodium hydroxide is needed to react with 25cm3 of 0.068M ethanoic acid?
November 26, 2014

Geography
How has mexico's culture been shaped by conflict among other people?
November 21, 2014

Math
thank you so much Frank!!
November 16, 2014

Math
A photocopy was made of Julie's watercolor painting. the photocopy resized the painting so that it measured 4 inches wide by 7 inches long. If the actual painting is 16 inches wide, what is the length?
November 16, 2014

Calculus
A marble is dropped from the top of the empire state building. a. Determine the position and velocity functions for the marble b. What is the average velocity for the first 3 seconds of flight? c. Whatisthespeedofthemarblewhent=0? t=3? t=6? d. How long does a person looking up...
November 8, 2014

Calculus
Joshua jumps from a platform diving board that is 32 feet above the water. The position of the diver can be modeled by s(t) = -16t2+16t+32, where s is his position and t is the seconds that have gone by since he jumped. When does the diver hit the water, and what was his ...
November 8, 2014

Statistics
12 cards are drawn with replacement from an ordinary deck of 52 cards. What is the probability that 4 queens of hearts, 4 aces of spades, and 4 kings of clubs are drawn?
September 14, 2014

Statistics
The question also asks for a Venn diagram to explain the answer.
September 14, 2014

Statistics
If P(A/B)=1 must A=B?
September 14, 2014

Differential Equations
Classify the following differential equations as linear or nonlinear: 3x' +5x=7t^2 4x^2+2x+5tx=0
September 11, 2014

math
James swims 3/4 miles 5 times a week. How far does he swim in one week.
April 10, 2014

Chemistry
Benzene has a heat of vaporization of 30.72kJ/mol and a normal boiling point of 80.1 ∘C. At what temperature does benzene boil when the external pressure is 480torr ?
April 7, 2014

Math
Thanks man!
March 30, 2014

Math
Find the number of elements in A1∪A2∪A3, supposing that there are 103 elements in A1, 992 elements in A2, 10011 elements in A3, in each of the following situations: (a) The sets are pairwise disjoint, that is, no pair has common elements, that is, the intersection ...
March 30, 2014

Chemistry
A 2.6 g of a substance that looks like gold needed 9.4 J of heat energy to raise its temperature from 20 to 38 ºC. Is the metal pure gold?
March 7, 2014

Physics
Hello bobpursley, can you get someone like yourself to help me with my physics problem which is posted right below this question
November 13, 2013

Math/Science
Then how would I find the toatl displacement from starting point?
November 13, 2013

Math/Science
An ocean liner is traveling at 5m/s. A passenger on deck walks towards the rear of the ship at a rate of 4m/s. After walking 30 meters, he turns right and walks at a rate of 4m/s to the rail, which is 12 meters from his turning point. What is his velocity relative to the water...
November 13, 2013

Chemistry
FeCl3(aq) + K2S(aq) Fe2S3(aq) + KCl(aq) Consider the unbalanced equation above. What is the maximum mass of Fe2S3 that can be produced when 54.5 mL of 0.480 M FeCl3 and 98.5 mL of 0.420 M K2S react?
October 7, 2013

Chemistry
C2H6(g) + O2(g) CO2(g) + H2O(g) (a) Consider the unbalanced equation above. What is the maximum mass of CO2 that can be produced when 21.0 g of C2H6 and 38.5 g O2 react? (b) If 24.7 g of carbon dioxide is actually produced by the reaction in part (a), what is the percent yield...
October 7, 2013

Chemistry
What is the maximum mass of the lower molar mass product that can be formed when 83.0 g of solid barium bromide and 20.5 g chlorine gas react?
October 7, 2013

Chemistry
Al(s) + HCl(aq) AlCl3(aq) + H2(g) Zn(s) + HCl(aq) ZnCl2(aq) + H2(g) Consider the unbalanced equations above. A 0.200 g sample of a mixture of aluminum and zinc metal is reacted with an excess of hydrochloric acid. Both metals react with hydrochloric acid. The sample produces ...
October 7, 2013

Physics
A fireworks rocket is moving at a speed of 48.4 m/s. The rocket suddenly breaks into two pieces of equal mass, which fly off with velocities v1 and v2, as shown in the drawing. What is the magnitude of (a) v1 and (b) v2? In the image the two pieces are going off in a right ...
October 6, 2013

Civics
What is the definition of a citizen and where did this concept begin? Please help :)
September 26, 2013

Physics
A young woman named Kathy Kool buys a sports car that can accelerate at the rate of 4.53 m/s2. She decides to test the car by dragging with another speedster, Stan Speedy. Both start from rest, but experienced Stan leaves the starting line 1.01 s before Kathy. If Stan moves ...
September 20, 2013

Algebra
Solve for M: 3P = 12C + 10MC
September 3, 2013

Algebra
y = ax, has asymptote ________ and y-intercept ________.
May 5, 2013

Chemistry
for the reaction 2NaOH + h2SO4 yieda 2H2O + Na2SO4 if .80 moles of NaOH are used, how many moles of H2SO4 must be used?
May 2, 2013

Chemistry
For a particular redox reaction NO2– is oxidized to NO3– and Cu2 is reduced to Cu . Complete and balance the equation for this reaction in basic solution. Phases are optional.
April 1, 2013

Chemsitry
For a particular redox reaction NO2– is oxidized to NO3– and Cu2 is reduced to Cu . Complete and balance the equation for this reaction in basic solution. Phases are optional.
April 1, 2013

science
What is the formula for friction force
March 27, 2013

turnford
prove the following 2 cosec 2θ cos2θ = cotθ - tanθ
March 13, 2013

turnford
prove the following 2 cosec 2θ cos2θ = cotθ - tanθ
March 13, 2013

Spanish Please help
Will somebody please help or translate these. Thank You 4. Which expression is used to talk about what you have just done? venir de hacer la tarea hacer un viaje acabar de 5. Vengo de la clase. ¿Qué acabo de hacer? Acabas de bailar. Acabas de bailas. Acabas de ...
January 31, 2013

Spanish help please.
Thnk you so much. Your sure these are right.
January 28, 2013

physics
a plane flys 350 km south along a straight path with an average velocity of 125 km/h to the south. the plane has a 30 minute layover and then travels 220 km south with an average velocity of 115 km/h to the south. what is the average velocity of the trip
November 13, 2012

Accounting
When calculating the times interest earned ratio, you you include "interest expense on debt extinguishment" in the interest expense? Thanks!
November 8, 2012

English
Create a Halloween story by filling in the blanks with adjectives. Remember adjectives are words that describe or tell about nouns. The words in () is my adjective answer I used. You Cannot use an adjective more than once The ____(full) moon was shining down on the _____,(old ...
October 29, 2012

Physical Science
You submerge 100 grams of steel in 200 grams of water. If the steel has an initial temperature of 80°C and the water has an initial temperature of 10°C, what is the final temperature of the system? The specific heat capacity of the steel is 0.15 cal/g•°C
October 12, 2012

Math
What are the base-five numbers for the base-ten counting numbers 1 to 26?
October 8, 2012

arithmetic
How is eight hundred twenty-six thousandths written in decimal form?
October 8, 2012

Economcis
Is GDP calculated by the price of the good with the indirect tax or the price of the good before the indirect tax? For example, if an economy only produces a single $10 good and it is taxed 10%, is GDP $10 or 11$? Thanks!!!
October 8, 2012

Chemistry
How many milliliters of an aqueous solution of 0.219 M magnesium bromide is needed to obtain 10.1 grams of the salt ?
October 3, 2012

Dynamics
The rotor is an amusement park ride where a person enters the Rotor when it is stationary and stands against the wall with their back against the wall. The rotor then begins to spin around a vertical axis. After reaching cruising speed, the floor drops away and the patron is ...
September 28, 2012

Chemistry
Mg +2HCL = MgCl2 +H2 what mass of hydrogen is obtained by adding excess hydrochloric acid to 6g of magnesium
September 25, 2012

math
Yes
September 25, 2012

10th grade honors chemistry
1.3 pounds of a material with a density of 3.7 g/mL would occupy what volume in liters?
August 29, 2012

math
lol thanks
July 29, 2012

math
the following all-red train and all-green train are equal in length. Do these trains give information about common factors, common multiples, or both?
July 29, 2012

basic calculus
use the first and second derivatives to find the x-coordinates of all local maxima and minima of f(x)=8e^2x-2x. indicate which of your answers are local minima and which are local maxima.
May 14, 2012

college alegbra
1/2 log 25- 3 log x
May 2, 2012

Spelling
Can anyone tell me the meaning of the word bade? Example for this sentence:The next morning John got up early and bade Rover goodbye.
March 27, 2012

Math
There's a triangle the numbers on each sides are 22 25 and 11 What is it's perimeter and area? Answer: P is 58 A is 345 There's a rectangle the numbers on 2 of the sides says 4 and 1 What is the Perimeter and area? Answer: P is 10 and A is 4 There's a rectangle...
January 19, 2012

Math.
On the paper it says height= 1 b
January 19, 2012

Math.
On finding a perimeter and area and there is a decimal for the shape but the 2 other numbers on the shape don't. Do I multiply/add with the decimal on all numbers or only on that 1 number? EXAMPLE There is a triangle one side is 1.5 the base is 2 and the other side is 3 ...
January 19, 2012

Math
9.000?
January 19, 2012

Math
Same thing on area? 1.5 X 2.0 X 3.0=9000?
January 19, 2012

Math
On finding a perimeter and area and there is a decimal for the shape but the 2 other numbers on the shape don't. Do I multiply/add with the decimal on all numbers or only on that 1 number? EXAMPLE There is a triangle one side is 1.5 the base is 2 and the other side is 3 ...
January 19, 2012

Math
The size of houses and buildings are measured in square feet. If you measured the outside length and width of a house and found the length was 60ft. and the width was 30ft., what is the size of the house in square feet? 60x30 and I got 1800ft
January 18, 2012

Math
All these are either rectangles or squares 1.Rectangle. 5 is length and 10 is width 10x5=50 2.Square. 5 is length and 5 is width 5x5=25 3.Rectangle. 6 is length and 8 is width 8x6=48 4.Square. 10 is length and 10 is width 10x10=100 5.Rectangle. 40 is length and 20 is width ...
January 18, 2012

Triangles/Math
The size of houses and buildings are measured in square feet. If you measured the outside length and width of a house and found the length was 60ft. and the width was 30ft., what is the size of the house in square feet? 60x30 and I got 1800ft
January 18, 2012

Triangles/Math
All these are either rectangles or squares 1.Rectangle. 5 is length and 10 is width 10x5=50 2.Square. 5 is length and 5 is width 5x5=25 3.Rectangle. 6 is length and 8 is width 8x6=48 4.Square. 10 is length and 10 is width 10x10=100 5.Rectangle. 40 is length and 20 is width ...
January 18, 2012

Triangles/Math
All of these are triangles Find the areas of the triangles 1. 8 is base and 5 is height A=bxh divided by 2 8x5=40 divided by 2=20 2. 6 is base and 7 is height A=bxh divided by 2 7x6=42 divided by 2=21 3. 12 is base and 5 is height A=bxh divided by 2 12x5=60 divided by 2=30 4. ...
January 18, 2012

ELA
Nation?
January 18, 2012

ELA
We're from the United States, to make a better Union, to make justice, to make sure of freedom, provide defense, more happiness, and help us, everyone, and our future, and to be written and accepted to the Constitution for the United States Of America.
January 18, 2012

ELA
Reread the Preamble. Then rewrite it in common, everyday language. We the people of the United States, in order to form a more pefect Union, establish justice, insure domestic tranquillity, provide for the common defense, promote the general welfare, and secure the blessings ...
January 18, 2012

Math
Find the perimeter of each rectangle or square. L=length W=width L=45 W=20 45+45+20+20=130 Correct??
January 17, 2012

Math
Find the perimeter of each rectangle or square. L=length W=width L=45 W=20 45+45+20+20=130 Correct??
January 17, 2012

Math
Find the perimeter of each rectangle or square. s=sides s=34 I think the shape is the square cause the square has all even sides so 34x4=136 Is this correct?
January 17, 2012

Math
There's a rectangle. On 1 side is 8 which is the Length side I have to find out how long the width side is. The whole perimeter has to equal 25 P=25 So if both length sides are 8 then that equals 16. Now I have to see how much both width sides are I did 25-16 and I got 9 ...
January 17, 2012

Math
There's a rectangle. On 1 side is 8 which is the Length side I have to find out how long the width side is. The whole perimeter has to equal 25 P=25 So if both length sides are 8 then that equals 16. Now I have to see how much both width sides are I did 25-16 and I got 9 ...
January 17, 2012

Math
There's a square. On 1 of the sides it's 8.4 What is the perimeter? I got 33.6 cause on each side of a square is the same size so 8.4x4=33.6 Is this correct?
January 17, 2012

Math
There's a square. On 1 of the sides it's 8.4 What is the perimeter? I got 33.6 cause on each side of a square is the same size so 8.4x4=33.6 Is this correct?
January 17, 2012

Math
There is a picture of a hexagon On 1 of the sides it says 3.2 What is the perimeter? I got 19.2 cause on hexagons there is 6 sides and all of them are even so 3.2x6=19.2 Is this correct?
January 17, 2012

physics
A skier of mass 54.6 kg comes down a slope of constant angle 21◦ with the horizontal. The acceleration of gravity is 9.8 m/s2 . What is the force on the skier parallel to the slope? Answer in units of N
January 10, 2012

physics
A skier of mass 54.6 kg comes down a slope of constant angle 21◦ with the horizontal. The acceleration of gravity is 9.8 m/s2 . What is the force on the skier parallel to the slope? Answer in units of N
January 10, 2012

physics
A skier of mass 54.6 kg comes down a slope of constant angle 21◦ with the horizontal. The acceleration of gravity is 9.8 m/s2 . What is the force on the skier parallel to the slope? Answer in units of N
January 10, 2012

physics
a man applies a force of 220 N horizontally to the right against a 50 kg crate. the force of friction between the crate and the floor is 200 N. if the crate is pushed 2.0 m, the work done is.... What formula would be applicable?
December 4, 2011

physics
a 25kg object moving with a velocity of 3m/s to the right collided with a 15 kg object moving to the left at 6 m/s. determine the velocity of the 25kg object after the collision if 15kg object a. continued to move to the left, but only at .3m/s b. rebounded to the right at ....
December 1, 2011

math
only 40% of people between the ages of 18 and 24 read the newspaper. what % of people reads the newspaper?
November 16, 2011

organic chemistry
First, you've got to specify which reaction.
October 24, 2011

Physics
If you treat the whole system as one solid thing, you will get the answer. FP= mtotal x acceleration 44= (11+13.5+1)a 44=25.5a a=1.73m/s^2 Use this acceleration value to find FTA and FTB using Newton's 2nd Law. FBT=13 x 1.73 FBT= 22.5 N (FBT and FTB are equal in magnitude...
October 13, 2011

scientist
How do I turn up the sound on a stereo without turning the volume button up?
August 15, 2011

algebra II
Select the best possible first step to solving the system by first eliminating the y variable. x + 8y = –4 2x – 4y = –13 Multiply the first equation by 2. Multiply the second equation by 2. Multiply the first equation by –2. Multiply the second equation by...
May 19, 2011

math-Probablity
Hi, just a few stupid questions about probability. 1. How many different license plates can there be if there is a total of 7 letters (no numbers) (and I'm assuming this has a something to do with permutation. 2. How many different batting line ups can be chosen from a 13 ...
April 14, 2011

world history
explain why it was difficult for Great Britain to control the New England colonies
April 12, 2011

Math
ln(x+3) + ln(x+4) = 3ln2
March 27, 2011

Math (Trig.)
A boat sailing from A to B travels in a straight line until the captain realizes he is off course. The boat is turned through an angle of 60 degrees, then travels another 10 km to B. The trip would have been 4 km shorter if the boat had gone straight from A to B. How far did ...
March 9, 2011

calculus
This is right
November 23, 2010

calculus
this is wrong
November 23, 2010

global studies
its not a question out of my book its an assignment on the land of maczeb. there is a map and a list of questions and things it wants u to look for and answer
October 24, 2010

global studies
How does geography affect the history of a nation?
October 24, 2010

9th grade
What is the definition of a crossroads for trade?
October 24, 2010

calculus
The half-life of Radium-223 is 11.43 days. If a sample has a mass of 900 mg, find the mass (in mg) that remains after 5 days
October 14, 2010

calculus
The graph of f(x) passes through the point (0,3) . The slope of f at any point P is 3 times the y- coordinate of P . Find f(1)
October 14, 2010

Physics
If an object is traveling at 24 km/h and accelerates at a rate of -.20 m/s2 , how long will it take the object to get to 8 km/h?
September 30, 2010

physics
a cannon ball is shot from a 100 m high cliff with an inital velocity of 24m/s and at an angle of 32 degrees. what is the overall final velocity of the cannonball?
September 21, 2010

Pre Calc
Thank you so much, i'm so stressed if its not too much trouble check out some of my other questions;)
August 31, 2010

Pre Calc
Complete the square to find the center and the radius of the circle: 3x^2+3y^2-12x+24y+15=0
August 31, 2010

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