# Posts by alex

Total # Posts: 3,757

**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? ...

**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

**algebra**

Sorry, I put a +2 instead of a -2. ^^ It should be -3x-2

**algebra**

g(x) = -3x+2

**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**

I am doing this same test but I think number one is b

**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!

**science(check answers)**

100% right thanks boo

**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 ...

**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!

**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

**math**

79,200

**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 ...

**Algebra 1**

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

**statistics**

4n /8.8

**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

**science**

thx bro

**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.

**English Grade 11**

"The Unknown Citizen" by W. H. Auden Write a statement of Auden's view of society with three quotations to support it. Then write another statement on his view of society with three examples to support that. Any help would be great, please and thank you!

**science help asap!!!**

its a b a c c d c b b a b a c

**Earth Science**

Analogy: melting is to freezing as partial melting is to _______? a. partial freezing b. magma. c. boiling. d. fractional crystallization.

**math**

3 bags

**science**

all of the following are explanations for glacial periods EXCEPT. a. varying solar energy b. volcanism c. biological organisms d. Earth's orbit's precession

**World History**

What is the connection between Czar Nicholas II, mobilization, and WWI? Any help would be great, thank you in advance!

**World History**

Why was Serbia’s fight for independence a key to WWI? Any help is appreciated, as I'm studying for a test and making flash cards. Please and thank you!

**US History**

Evaluate the evidence presented by Rice and Rockefeller. What light do they shed on the Robber Baron Industrial Statesman debate? I can't find the answer in my book, so any help is appreciated. Please and thank you!

**math**

Rewrite the equation 4x + y + 2 = 0 in slope-intercept form.

**US History**

Describe the deal the South Improvement Company made with the railroads and the advantages offered Standard Oil as well as the railroads. Can't find the answer anywhere in the packet that I was given. Any help would be appreciated, please and thank you!

**Physics**

Someone please answer i need help and do not understand

**Physics**

A 6 kg block free to move on a horizontal, frictionless surface is attached to a spring. The spring is compressed 0.16 m from equi- librium and released. The speed of the block is 1.44 m/s when it passes the equilibrium po- sition of the spring. The same experiment is now ...

**Physics**

Someone please answer i need help and do not understand

**Physics**

How far x does it move down the incline before coming to rest? Suppose the incline is frictionless. The angle of inclination is 36 ◦ , the spring constant is 89.6 N/m the mass of the block is 9.05 kg and the acceleration of gravity is 9.8 m/s2 . Answer in units of m ...

**algebra 2 honors**

2x^2-12x+32=x^2 x^2-12x+32=0 (x-4)(x-8) Use foil to check x*x=X^2 -4*x=-4x x*-8=-8x -4*-8=32 Combine like terms x^2-12x+32 Hope this helps

**Social studies**

1. What do we call a generally flat region surrounded by higher land?____________

**World History**

26. The Italian fascists had a slogan: "Women into the Home." How did this support their political ideas? Any help would be greatly appreciated, I can't find the answer in my book. Please and thank you!

**math**

Factor 16x(a + b + c) + 7y(a + b + c) + 8w(a + b + c). Please show the steps for how you get the answer. Thanks

**math**

5√3 meters

**algebra**

HELP PLEASE!! ASAP!! If f(x)=2x+1 and g(x)=3x-5, find f(g(2))

**Algebra**

please help or examples!!!How many intergers are common to the solution sets of both inequalities? x+7>or = to 3x 3x+4<or = to 5x

**algebra**

If f(x)=2x+1 and g(x)=3x-5, find f(g(2)).

**math**

If f(x)=2x+1 and g(x)=3x-5, find f(g(2)).

**math**

If f(x)=2x+1 and g(x)=3x-5, find f(g(2)).

**math**

If f(x)=2x+1 and g(x)=3x-5, find f(g(2)).

**chemistry**

What volume of chlorine gas at 42.0 oC and 1.30 atm is required to react completely with 34.2 g of phosphorus (P4) according to the following reaction?

**Math - Calculus I**

Optimization Problem: Find the dimensions of the right circular cylinder of greatest volume inscribed in a right circular cone of radius 10" and height 24"

**math**

Matthew parks his car between Karen’s and Patrick’s apartment buildings. The car is 46 m in front of Karen’s apartment building. The angle of elevation from the car to the top of the building is 40°. Matthew’s car is 39 m away from Patrick’s ...

**Chemistry**

Calculate the heat in kilojoules needed to condense 185g of steam at 100 ∘C.

**Chemistry**

Calculate the heat in kilojoules needed to condense 185g of steam at 100 ∘C.

**6th grade math**

Right, it should be horizontal.... got my lines mixed up.

**6th grade math**

Forgot to add this question: 1. Describe the graph represented by the table: x 1 2 3 4 y 5 5 5 5 Ans: The actual graph would be a vertical line at ordered pairs (1,5), (2,5), (3,5), (4,5), and (5,). Is this right?

**6th grade math**

Can you check please: 1. Joe has used 75 sheets of a pack of notebook paper, which is 5/8 of the entire pack. The equation 5/8 s = 75 can be used to find the number of sheets "s" in a full pack. Determine the solution of the equation, and tell what the solution means...

**6th grade math**

Can you check these, please? 1. A spool contains 18.5 feet of rope. Bob cuts off a piece of rope. There are 13.8 feet of rope left on the spool. Write 3 equations that could used to determine the length of the rope (r) Bob cut off. Ans 1: r + 13.8 = 18.5 Ans 2: 18.5 - r = 13.8...

**6th grade math**

thanks!

**6th grade math**

Can you check this problem, please? n/((3/4))=5/9 Ans: multiply both sides by (3/4) n = 5/9 * 3/4 n = 15/36 n = 5/12