Monday
December 22, 2014

Posts by max


Total # Posts: 584

Math!
On the train we had 41 different kinds of cookies. 3 different flavors of cocoa, and 122 candies. How many treats did we have in all?
December 21, 2014

Math
Determine which of the following is true for the function X^3+5x^2-8x+3 f(x) has a relative minimum at x = 2/3. f(x) has a relative maximum at x = 2/3 f(x) has a zero at x = 2/3 Both A and C are true. <----- Both B and C are true.
December 21, 2014

Math
Isaac gets paid $400.00 per week plus a commission $10.00 for every item he sells. Write the equation that shows the relationship between the number of items he sells and his weekly income.
December 10, 2014

Math
How many 3 digit numbers can you find whose digits have a sum of 4. 112 211 103 301 310 013 031 202 220 022 400
December 8, 2014

Math word problem
Jeremy has 19 coins of 2 different values. the total value of the coins is $1.00. What are the coins? How many of each coin does he have?
December 7, 2014

Physics
A person pushes on a doorknob with a force of 5N. The direction of the force is at an angle of 20 degrees from the perpendicular to the surface of the door. The doorknob is located .800m from axis of the hinges of the door. The door begins to rotate with an angular ...
November 23, 2014

physics
A clock has a second hand whose tip rubs against the inside of the glass cover. If the frictional force between the glass cover and the tip of the second hand is 0.0010 N and the length of the hand is 6.5 cm, what is the minimum torque that must be applied to the second hand ...
November 21, 2014

physics
A 30-caliber rifle with a mass of 2.80 kg fires a 9.84- g bullet with a speed of 726 m/s with respect to the ground. What kinetic energy is released by the explosion of the gunpowder that fires the bullet?
November 21, 2014

Math
What is 3.9 x 4.67 equal to?
November 12, 2014

Physics
Two objects are moving in the xy-plane. No external forces are acting on the objects. Object A has a mass of 3.2 kg and has a velocity of Va= (2.3 m/s)i + (4.2m/s)j and object B has a mass of 2.9 kg and has a velocity of Vb= (-1.8m/s)i + (2.7m/s)j. Some time later, object A is...
November 12, 2014

Physics
A mass of 2.0kg traveling at 3.0 m/s along a horizontal plane hits a relaxed spring 20cm away from it. The coefficient of kinetic friction is 0.3. The mass is slowed to zero velocity when the spring has been compressed. By how much the spring has been compressed, the spring ...
November 9, 2014

Physics
A mass of 2.0kg traveling at 3.0 m/s along a horizontal plane hits a relaxed spring 20cm away from it. The coefficient of kinetic friction is 0.3. The mass is slowed to zero velocity when the spring has been compressed. By how much the spring has been compressed, the spring ...
November 5, 2014

Chemistry
A concentration cell consists of two Sn/Sn2+ half-cells. The cell has a potential of 0.12V at 25 ∘C. What is the ratio of the Sn2+ concentrations in the two half-cells?
November 3, 2014

English
adjective
November 3, 2014

Chemistry
Hello. On the homework for my middle school chemistry class, one of the questions asks me to identify "the four classifications of substances". I am having difficulties with this problem.
October 28, 2014

Math
If the average cost per salaried employee increases by $4,000 in the Kitchen Department, what is the new average cost per employee in the department? (more info: Salaried Employees: Average # of employees: 2 Cost in Thousands: 52 Average Cost/Employee: 26 Hourly: Average # of...
October 27, 2014

Math
estimate the area of the rectangles 5 7/9 by 3 1/5 7 7/8 by 1 1/3 Estimate each product. 3/8 X 4
October 16, 2014

Math
A rancher with 750ft of fencing wants to enclose a large rectangle area and then divide it into four equal-sized pens to hold animals. If the maximum area is desired to ensure humane treatment of the anima, what should be the dimensions of the larger rectangle. What should be ...
October 12, 2014

Financial Mathematics
The Z Corporation needs $180,000 in 60 months. If they deposit $2,000 per month for the first 20 months, $2,500 for the next 20 months, and $2,000 + R for the last 20 months, what is R if they can invest at 7%(12)?
October 2, 2014

Language arts
At the end of her aunts story in the story teller the older girl asked whether the girl in the story would have been rescued even if she had not been good. what does she seem to think is the theme of her aunts story
September 26, 2014

Social Studies (SS)
What was the relationship between the popularity of rice in Europe and slavery in the Southern colonies?
September 18, 2014

physics
A rocket is fired at a speed of 75.0 m/s from ground level, at an angle of 57.3° above the horizontal. The rocket is fired toward an 11.0 m high wall, which is located 21.5 m away. By how much does the rocket clear the top of the wall?
September 14, 2014

Science
Thank You so much DrBob222!
September 8, 2014

Science
Does Earth rotate or orbit each day?
September 8, 2014

Math7
12
September 8, 2014

AP Physics
A bowling ball traveling with constant speed hits the pins at the end of a bowling lane 16.5 m long. The bowler hears the sound of the ball hitting the pins 2.90 s after the ball is released from his hands. What is the speed of the ball? The speed of sound is 340 m/s. Answer ...
September 5, 2014

Science independent variable
A scientist designed an experiment to test the effect of temperature on bacterial growth. He grew three different cultures of the bacterium E. coli under three heat lamps at different temperatures. What was the independent variable in this experiment?
September 3, 2014

SOMEONE HELP PLEASE..DUE AT MIDNIGHT
Can't help. You will need to post one question at a time. Besides, we don't do homework for you. We help, not giving out answers sorry.
September 3, 2014

math
So is it 96? I don't want to get it wrong for my final score. Hi said that its wrong.
August 8, 2014

math
Mike gave Danny 4 more marbles than he already had. He now has 100 marbles. How many marbles did Mike give to Danny? I dont no the answer
August 8, 2014

Math
Find the number of units that produces a maximum revenue. The revenue R is measured in dollars and x is the number of units produced. R = 80x – 0.0001x^2
June 8, 2014

physics
An astronaut on Triton throws a 0.142 kg baseball straight up with a velocity of 24 m/s. How high does the baseball go?
June 2, 2014

Math 8th Grade!!!!
27 - (-9) (-2) ÷ 3 * (-4) - 0 - 33 - (-39)
May 21, 2014

Math 8th gr.
Tysm!
May 20, 2014

Math
In triangle PQR, <R=90 degrees, <Q=10 degrees and RQ=16 cm. Find PR.
April 15, 2014

Quick Question
Okay, thank you.
April 11, 2014

Quick Question
I am trying to find an online radio podcast that middle school students can use to host their own radio show. Can you help me research some?
April 11, 2014

Math
Oh okay. Thank you. I appreciate it.
April 3, 2014

Math
John spoke to his friend from 10:15am-11:00am. And then John spoke to that same friend again from 12:30pm-1:15pm. altogether, how many minutes did John speak to his friend? How do I figure this out?
April 3, 2014

science
Anonymous is wrong. All are correct. I just got 7/7.
March 22, 2014

science(check answers)
number nine should be air c
March 21, 2014

Math
For the graph y find both x-intercepts by solving the equation 3x^2 - 24x + 45 =0 a) Direction of opening b)y-intercepts c)Axis of symmetry d) vertex e) max or min
March 8, 2014

math
For the graph y find both x-intercepts by solving the equation 3x^2 - 24x + 45 =0
March 8, 2014

Math
the answer is 2 5/6
February 6, 2014

College science
Im in Chem. but looks like physics.. If a rock climber accidentally drops a 70.5 g piton from a height of 295 meters, what would its speed be just before striking the ground? Ignore the effects of air resistance.
February 1, 2014

physics..
What is the maximum height achieved if a 0.800 kg mass is thrown straight upward with an initial speed of 40.0 m·s–1? Ignore the effect of air resistance.
February 1, 2014

Chemistry
alright, thanks lol
February 1, 2014

Chemistry
Thats what it looks like.. but im taking chem. in college and have never had a physics course, im really lost.
February 1, 2014

Chemistry
What is the maximum height achieved if a 0.800 kg mass is thrown straight upward with an initial speed of 40.0 m·s–1? Ignore the effect of air resistance.
February 1, 2014

Chemistry
Thank you x)
February 1, 2014

psychology
where does spanking fall between punishment and discipline
January 26, 2014

Geography HELP
HOw do I explain how you would make a scale map of a room in your home.
November 22, 2013

Calculus Fundamental Theorem
Thank you!
November 20, 2013

Calculus Fundamental Theorem
Evaluate the definite integral. function: (t+8)(t^2+3) with respect to variable t lower limit: -sqrt(2) upper limit: sqrt(2)
November 20, 2013

Calculus Fundamental Theorem
Original problem was: absolute value x-13, because of absolute value I made it x+13
November 20, 2013

Calculus Fundamental Theorem
I tried that way, my answer was wrong
November 20, 2013

Calculus Fundamental Theorem
Evaluate the definite integral. function: x+13 with respect to variable x lower limit:0 upper limit:22
November 20, 2013

Calculus Sigma Notation
Find a and n such that: 8+16+32+64+128 (k=a) a=? n=?
November 10, 2013

Calculus-Antiderivative
Solve the following initial value problem: dr/dt=7cos(pi(t)), r(1/4)=14 r(t)=?
November 8, 2013

Chemistry
explain why glucose 1,6 bisphosphate would not be able to go through the aldolase reaction.
October 20, 2013

Chemistry
Explain using electron-pushing arguments why glycolysis must go through G6P to F6P step (C1 aldehyde to C1 ketone). Focus on the subsequent aldolase-catalysed reaction and explain why glucose 1,6 bisphosphate would not be able to go through the aldolase reaction.
October 19, 2013

Chemistry
Explain using electron-pushing arguments why glycolysis must go through G6P to F6P step (C1 aldehyde to C1 ketone). Focus on the subsequent aldolase-catalysed reaction and explain why glucose 1,6 bisphosphate would not be able to go through the aldolase reaction.
October 19, 2013

Math, HELP!! UGENT!
Find the value of k so that the line containing the points (−8,8) and (2,k) is perpendicular to the line containing the points (14,−8) and (9,−6).
September 14, 2013

math
the lengths of the three sides of a right triangle R have odd integer values and two of the three sides have lengths 3 and 5. What is one possible length of the third side?
July 23, 2013

Calculus
Evaluate ∬R xy dA, where R is the region bounded by x^2+y^2≤36, x≥0 and y≥0.
July 7, 2013

Chemistry
Calculate Activation Energy, Ea, for each of the reactions, above? ln(k)= -2.24x10^4(1/T)-1.8. The reactions are Step 1: 2H2 + N2 -> N2H4, Step 2: N2H4 + H2 -> 2NH3, Overall: 3H2 + N2 -> NH3. This is all the information i have. i Don't know how to solve for the ...
June 4, 2013

Math
(-3xy^2)^2(-2x^5y^3)^3
June 3, 2013

Literature
In order to get an idea of significant subject areas in a chapter, it is best to read the: A. subheads. B. graphics. C. captions. D. table of contents.
May 21, 2013

Physics
nearly everybody has witnessed a lunar eclipse, but relatively few people have seen a solar eclipse? why
May 2, 2013

Math 7th Geometery
yes hieght is 12m Yes 3 rectangles. yes two outside ones equal 31 by 23 Yes smaller one at the base is 23m Yes all right. your awesome! This was a tough one for me. But you helped me see where I was confused. Thank you so much.
April 24, 2013

Math 7th Geometery
I have a complex figure like a U shape. I understand the formula for this is l x w = a Can you show me the steps? 31m is parael to 31m this would be the height (sides of the U)?? or is this the width? Length 69m Width is on the right top of U 23m. Inside the middle of the ...
April 24, 2013

Justice
The correct answer is letter C
April 10, 2013

chemistry
What is the molar concentration of sodium ions in a 0.450 M Na3PO4 solution?
March 30, 2013

Trig
Thank you very much!
March 28, 2013

Trig
How exactly do you get there though? I tried to follow a similar homework problem and got: = (cos^2)*(67.5deg) - (sin^2)*(67.5deg) = cos(2*67.5deg) = cos135deg = -√2/2
March 28, 2013

Trig
Simplify (sin^2)*(67.5deg) - (cos^2)*(67.5deg) and then evaluate exactly.
March 28, 2013

math
you shared a pizza with two friends You ate 1/8 of the pizza.One of your friends ate 5/8 of the pizza and the other ate 1/8 of the pizza. What fraction of the pizza did you and your friends eat?
March 18, 2013

US History
What gave Andrew Jackson the power to remove the Cherokee from their land? Georgia state laws Acts of Congress two Supreme Court decisions treaties signed by the Cherokee Im thinking two Supreme Court decisions?
March 1, 2013

US History
What did the Supreme Court cases and the ultimate outcome for the Cherokee suggest about future dealings between the United States government and Native Americans? (3 points) The U.S. government would most likely follow the rule of law and abide by court decisions. The U.S. ...
March 1, 2013

US History
Im thinking its The British territory was smaller than that of the U.S?
March 1, 2013

US History
A treaty was signed in 1842 to end the border dispute between the United States and Britain in Maine. Which best expresses the end result for Britain? the British lost all the territory in Maine The British territory was bigger than that of the U.S. The British territory was ...
March 1, 2013

US History
countries
March 1, 2013

US History
so to warn the european colonies?
March 1, 2013

US History
I really don't know. I was taking Wold history before i moved and now i have a a review sheet on stuff i havent even learned. a?
March 1, 2013

US History
Which answer best describes the main purpose of Monroe Doctrine? to claim new United States territories in the West to warn European countries to stop colonization in the Western Hemisphere. to express that American politics and ideals were superior to encourage Americans to ...
March 1, 2013

US History
to establish a line between slave and non slave states?
March 1, 2013

US History
What was the goal of the Missouri Compromise? to create a slave state and a non-slave state to create a free state where fugitive slaves could live to establish a line between slave and non-slave states to settle a disagreement between Missouri and Arkansas
March 1, 2013

US History
What was the goal of manifest destiny? to expand America's borders to remove Native Americans to create an alliance with Mexico to move settlers west beyond the Appalachians
March 1, 2013

US History
the removal act isnt even an option. i honestly thought about it.
March 1, 2013

US History
Acts of Congress? Weren't the congress against the Indians and all that?
March 1, 2013

US History
What gave Andrew Jackson the power to remove the Cherokee from their land? Georgia state laws Acts of Congress two Supreme Court decisions treaties signed by the Cherokee
March 1, 2013

Chemistry
Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 °C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 17.3 g of biphenyl in 34.0 g of benzene?
February 25, 2013

Physics HELP PLEASE
If 10-kg of ice at 0 degrees Celsius is added to 2-kg of steam at 100 degrees Celsius, the temperature of the resulting mixture is? Use Joules. ANSWER: 40 Specific Heats: Ice = 2060 Steam = 2020 Latent Heats: Water melting = 3.33x10^5 Water boiling = 2.26x10^6
February 11, 2013

math
A family group of 6 went to a show. Tickets for adults are $6. Tickets for children are $4 dollars. The family spent $30 dollars on tickets. How many adult and children tickets did they buy?
February 10, 2013

chemistry
If 145 J of heat energy is applied to 34.47 g of an unknown metal, the temperature increases from 61.0 degree C to 78.5 degrees C. What is the specific heat capacity of the unknown metal?
January 31, 2013

Chemisty
If 1 gram of sugar is 4 Calories(kcal) how many calories are in one sugar cube
January 30, 2013

math HELP!
Kara's custom tees experienced fixed costs of $300 and variable costs of $5 a shirt. write and equation that can be used to determine the total expenses encountered by kara's custom tee's. Let x be the number of shirts and let C(x) be the total cost of producing x ...
January 27, 2013

math
evaluate f(x) at the given values of x. f(x)=2. x=-11,5/2
January 27, 2013

math
find the slope intercept form for the line satisfying the following conditions: y-intercept=2 y-intercept =2/3
January 27, 2013

math
a certain mountain has an elevation 19580 feet in 1907 the glacier on its peek covered 8 acres by 2002 this glacier had melted to 1 acre assume the glacier melted at a constant rate each year find this yearly rate
January 27, 2013

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