Monday
April 21, 2014

Posts by alex


Total # Posts: 2,500

Physics
A police car stopped at a set of lights has a speeder pass it at 100 km/h. If the police car can accelerate at 3.6 m/s2, a) how long does it take to catch the speeder? b) how far would the police car have to go before it catches the speeder? c) what would its speed be when it ...

Algebra 1
4 pencils and 5 pens cost $2.00; 3 pencils and 4 pens cost $1.58. Write out a system of equations that would represent this situation.

English
Ok

English
Which description would not apply to a typical metropolis ? A. Bustling B. Crowded C. Large d. Rustic I think it's is A

English
Ok I will do that now so I am thinking it A

English
A word closely associated with altercation is ? A. revision B. Adherent C. Sensible D. Argument I think it is letter B is that right ? Please answer me

English
Ok

English
I meant its A

English
An invincible team is one that has never know ? A. The joy of victory B. The agony of defeat C. The fear of flying D. Injury or illness I am thinking it could be letter D

english/vocabulary
Look back at "failing infrastructure" write a letter to your state representative describing an infrastructure problem in your community and urging swift action. thoroughly describe the problem and it's solution, explaining why it is vital to take action immediat...

english/vocabulary
ok thank you so much for you help i real appreciate it

english/vocabulary
can you please help me on word study with writing with idioms ? 1. sick as a dog 2. the best of both worlds 3. under the weather 4. nest eggs 5. when pigs fly 6. slip through the cracks 7. go to seed 8 . thorn in your side 9. turn over a new leaf 10. fifth wheel 11. pitch in 1...

MATH
THANK YOU FOR HELP ME SO MUCH ON MY HOMEWORK I REAL appreciate it

math
you were right i thought so that's why i wrote to you .

math
how can you solve this problem ? here X=Y plz help me fast

physics
A thin, uniform rod is hinged at its midpoint. To begin with, one-half of the rod is bent upward and is perpendicular to the other half. This bent object is rotating at an angular velocity of 7.1 rad/s about an axis that is perpendicular to the left end of the rod and parallel...

Physical Science
13. Why can convex mirrors only produce virtual images? Sadly, I can't find this answer in my book. :( Any help would be appreciated, please and thank you!

Math help
A catapult launches a boulder with an upwark velocity pf 184 feet per second. the heigh of the boulder in feet after t seconds is given by the function h(t)=-16t^2+184t+20. how long does it take the boulder to reach its maximum height? What is the boulders maximum height? Roun...

Word problem
Mrs sue or Damon am I correct?

Word problem
. A catapult launches a boulder with an upwark velocity pf 184 feet per second. the heigh of the boulder in feet after t seconds is given by the function h(t)=-16t^2+184t+20. how long does it take the boulder to reach its maximum height? What is the boulders maximum height? Ro...

Equations
How many real number solutions does the equation have y=3x^2+18x+27 none one two infinite

Equation help 2 questions
Mrs sue can you help me with question 2?

Equation help 2 questions
is number 1 none?

Equation help 2 questions
How many real number solutions does the equation have y=-4x^2+7x-8 none one two infinite How many real number solutions does the equation have y=3x^2+18x+27 none one two infinite Thank you!

Equation help
can someone help?

Equation help
A physics student stands at the top of a hill that has an elevation of 56 meters. he throws a rock and it goes up into the air and then falls back past him and lands on the ground below. The path of the rock can be modeled by the equation y=0.04x^2+1.3x+56 where x is the horiz...

UCF
What will be the change in enthalpy when 100.0 g of butane, C4H10, is burned in oxygen as shown in the thermochemical equation below? 2 C4H10(l) + 13 O2(g) → 8 CO2(g) + 10 H2O(g) ΔH = −5271 kJ −2636 kJ −4534 kJ −9087 kJ −1.817 × 1...

trig
a hot air balloon climbs continuously along a 30° angle to a height of 5,000 feet. To the nearest tenth of a foot, how far has the balloon traveled to reach 5,000 feet? Draw a sketch and then solve.

Geometry
I need help!!! a hemispherical bowl with radius 25cm contains water whose depth is 10cm. what is the water's surface area

US history
Would question 4 be B instead?

US history
True False The divorce rate in America declined in the 1920s. false right? All of the following were anti-modern reactions except A.fundamentalism B. Ku Klux Klan C. cultural anthropology D. arts and crafts movement E. prohibition F. None of the above Is it D? Fundamentalists ...

Math 110
I don't understand how you got 2016. I understand how you added to get the 1,9, 11, and 6. But I do not understand where you got the 1->2, 9->0, and 11->1.

DATABASE.PLEASE!!
CAN ANYONE DIRECT ME HOW TO EXTRACT A BUSINESS RULE AND RELATIONSHIP FROM THIS PARAGRAPH.? *I KNOW ITS MANY TO MANY RELATIONSHIP. BUT I STILL HAVE PROBLEM TO COMPLETELY BREAK THE RELATIONSHIP DOWN TO ONE TO MANY. PARAGRAPH: Students will also be required to sit for many tests....

Geometry
I need help in this problem: A 14-foot ladder is leaning against a house so that its top touches the top of the wall. the bottom of the ladder is 8 feet away from the wall. which of these can be used to find the height of the wall? A. in a right triangle with 14-foot leg and a...

Chemistry
The measured potential of the following cell was 0.1776 volts: Pb|Pb2+(??M)||Pb2+(1.0M)|Pb Calculate the electrode potential of the unknown half-cell(anode). Not sure how to approach this, considering the molarity is unknown. There isn't a lot of space on the page for the ...

Equation help
Anyone?

Equation help
X^2-6x+7=0 1.-1.59,4.41 2.-1.59,-4.41 3.1.59,-4.41 4.1.59,4.41 Can someone help?

Equations Help
is this the answers for both of them?

Equations Help
ok I get that one

Equations Help
how many real number solutions are there to the equation y=5x^2+2x-12 how many real number solutions are there to the equation y=3x^2+18x+27 Can somebody tell me how to get the solutions?

Algebra
The length of a rectangle is 5 meters more than its width. The perimeter is 66 meters. Find the length and the width of the rectangle

Trigonometry
rewrite tan(sin^-14v) as an algebraic expression in v

Physics
A 5.1- kg concrete block rests on a level table. A 3.4- kg mass is attached to the block by a string passing over a light, frictionless pulley. If the acceleration of the block is measured to be 1.3 m/s2, what is the coefficient of friction between the block and the table? Wha...

trigonometry
how far from an 84 foot burning building should the base of the fire truck ladder be placed to reach the top of the building at an angle of 60 degrees with the ground. the ladder is mounted to the truck 8 ft off the ground

Science
In your own words, describe the mathematical process of converting from one metric unit of length to another.

math
an instructor makes $15 more per hour than an assistant. If the combined hourly wage of the instructor and assistant is $65 , what is the hourly wage of the assistant?

math
an instructor makes $15 more per hour than an assistant is $65 what is the hourly wage of the assistant ?

algebra 1
At Jack's Laundromat, 6 of the washers must be replaced. These washers represent of the total number of washers. If w represents the total number of washers, which equation could be used to determine the value of w?

Criminal investigation
thank you

Criminal investigation
I read an article on an informant killed by a gang leader. What motivates informants to do a job like that? Thanks

Criminal investigation
thank you damon

Criminal investigation
can somebody please help

Criminal investigation
If you had information about a crime, would you be an official informant for the authorities? What would your concerns be? I don't think you would be a official informant, but im not sure what by concerns would be. Can somebody help?

Physical Science
When mixing colors of light, why does combining a secondary color with its complementary color give white light? I can't find the answer in my book, please help!

chemistry
In the following reaction, how many liters of oxygen produce 560 liters of carbon dioxide in the oxidation of methane, given that both gases are at STP? CH4 + 2O2 ¨ CO2 + 2H2O

Accounting - need guidance
On January 1, 2012, Bartell Company sold its idle plant facility to Cooper Inc. for $1,050000. On this date, the plant had a depreciated cost of $735,000. Cooper paid $150,000 cash on January 1, 2012, and signed a $900,000 note bearing interest at 10%. The note was payable in ...

accounting-fory
On January 1, 2012, Bartell Company sold its idle plant facility to Cooper Inc. for $1,050000. On this date, the plant had a depreciated cost of $735,000. Cooper paid $150,000 cash on January 1, 2012, and signed a $900,000 note bearing interest at 10%. The note was payable in ...

algebra 1
Eight times the sum of 11 and a number is 123. Which equation below can be used to find the unknown number?

algebra 1
The sum of two consecutive even integers is -34 . What is the smaller integer?

algebra 1
The sum of three consecutive integers is -204 . What is the largest integer?

Math
Find the product. Write the product in simples form. 2/3 x 8 = 2/3 x 8/1

Science
Is this correct. True or False. You can produce lower pressure by decreasing the area a force acts on. I think it is true.

Physical Science
22. Why does a heat pump need an external source of energy (such as electrical energy)?

Polymonial help
I'm not sure how to get the answers above me

Polymonial help
These are the answer choices y,y+6, and y-1 y,y-6, and y-1 y,y+6, and y+1 y,y-6, and y+1

Polymonial help
A dollhouse has a volume given by the trinomial y^3 - 5y^2 - 6y. What are possible dimensions of the box? I've been having trouble with this question all day. Can somebody help me?

writing
A. The tone of his paper was not original. B. He had too many grammatical errors. C. The overall ideas in his essay were not fully developed. D. The flow of his essay was inconsistent. I chose C, what do you think?

Algebra 1
37. Graph the line y = 4x + 2. Give the equations of three other lines that together with the line y = 4x + 2 would form a rectangle. Graph your rectangle. This is the last question that I have for this homework assignment, and I'm completely confused. Please help!

english 3b
How do Realists and Romanticists differ?

Chemistry
1.If the atmosphere can support a column of mercury 762 mm high at sea level, what height of water could be supported? The density of water is approximately 114 that of mercury.Answer in units of mm 2.If the atmosphere can support a column of mercury 762 mm high at sea level, ...

history
Progressives concerned with social justice called for (circle three) A. an end to slavery B. regulation of work hours for women C. prohibition D. equal pay for equal work (for women) E. supralapsarianism F. stricter building codes and factory inspections I would say B,C, & F, ...

history
4, southerners were referred to as Bourbons

history
The term Bourbon A.celebrated the French origin of many of the New South leaders B.derived from the French Bourbons who, according to Napoleon, forgot nothing and learned nothing through the ordeal of the French Revolution C.reflected the fact that some Southern political lead...

Algebra 1
The value of a certain new car (time = 0 years old) is $14,000. After two years (t=2), the value of the car is $9,000. A. Find the linear equation representing the car after t years. B. What is the value of the car after 5 years?

Current World History
1. Why has there been weeks of protesting in Kiev, Ukraine? 2. What happened with the president of Ukraine, and why? Please and thank you in advance for any help given!

Psychology
b

English Grade 11
Explain how the meaning of each of the following words is related to the root work -litera- mean "letter." 1. literate (adj.) 2. literature

English Grade 11
What is the literary term for an event that is different from what the readers or the characters will expect to happen? A. situational irony B. ambiguity C. verbal irony D. contradiction Working on my workbook pages for this week and I don't understand this one: please hel...

Algebra 1
Find three solutions of each equation. 4x + 3y = 14 and 6x - 5y = 23

Physics
A small rocket weighs 14.7 newtons. The rocket is fired from a high platform but it's engine fails to burn properly. The rocket gains total upward force if only 10.2 newtons. At what rate and in what direction is the rocket accelerated?

Algebra 1
What is point slope form? How is it different than slope intercept form? Which one is better?

Physical Science
In what direction does heat flow? Why do particles of matter transfer thermal energy in this direction?

Chemistry 106 ch 11
Calculate the heat released when 73.5 g of steam at 122.0 C is converted to water at 39.0C. Assume that the specific heat of water is 4.184 J/g C, the specific heat of steam is 1.99 J/g C, and change in heat vap =40.79 kJ/mol for water.

Math help polynomial
multiply the following polynomial -3x(y^2+2y^2) answer choices 3xy^2-6xy^2' -3xy^2-gxy^2 -3xy^2+5y^2 -9xy^2 The last one was the answer. Can you tell me how the answer was solved? Thanks!

Algebra 1
How do you write the equation of a line if you have two points? Please use detail and give step by step instructions: trying to study for a test and I don't understand this concept.

Physics
If a salmon swims straight upward in the water fast enough to break through the surface at a speed of 5 meters per second, how high can it jump above water?

Science
Help, I am not sure I am doing this right. Are these correct? 1. What is the acceleration of a 1,500-kg elevator with a net force of 10,500 N? 2. What net force is needed to accelerate a 60-kg cart at 12 m/s 2? I think it is 720N

Science
The action and reaction forces in any situation will always be ----- and ----.

bio -energy
in what chemical form is glucose when it enters the Krebs Cycle?

Biology
a variable whose variation does not depend on that of another.

US History
Do you think the U.S. should have joined the League of Nations with no restrictions to its obligations under Article X? Why or why not? I think I can answer the question; I just need help from someone who can explain what they're asking here? Please and thank you.

Physical Science
Explain the energy conversions that occur as a basketball falls, hits the ground, and bounces back up. Ignore frictional forces.

Algebra 1
The length of a rectangle is 4 cm more than the width. The area of the rectangle is 77 cm squared. Find the width and length. A) 7 cm, 11 cm B) 4 cm, 8 cm C) 6 cm, 8 cm D) 6 cm, 10 cm

Physical Science
How does the potential energy of an object change when its height is tripled?

Physical Science
A machine you designed has an efficiency of 60%. What happens to 60% of the work put into the machine, and what happens to the other 40%?

Physical Science
A 50.0-kg wolf is running at 10.0 m/sec. What is the wolf's kinetic energy? A) 5 J B) 500 J C) 5000 J D) 250 J E) 2500 J

Algebra 1
The Tigers won twice as many football games as they lost.They played 96 games. How many games did they win?

science
Three people push a piano on wheels with forces of 130 N to the right, 150 N to the left, and 165 N to the right. What is the strength and direction of the net force on the piano?

English Grade 11
I haven't read those, but I will now!

English Grade 11
So far I have that Auden thinks that a hard-working and sociable man is normal/ideal in society.

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