Sunday

May 1, 2016
Total # Posts: 1,476

**physics**

A 3.20 kg block is in equilibrium on an incline of 29.6 The acceleration of gravity is 9.81 m/s2 . What is Fn of the incline on the block? Answer in units of N
*September 30, 2011*

**physics**

A 22 kg box rests on the back of a truck. The coefficient of static friction between the box and the truck bed is 0.369. The acceleration of gravity is 9.81 m/s2 . What maximum acceleration can the truck have before the box slides backward
*September 30, 2011*

**Physics**

A 27.59 kg child is on a swing that hangs from 2.26-m-long chains. What is her maximum speed if she swings out a 48° angle?
*September 29, 2011*

**Physics**

a stone is thrown horizontally from the edge of the cliff with speed of 18m/sec. Cliff is 50 meters high
*September 20, 2011*

**Spanish**

Mi abuela y yo ______________ en baton rouge. Kiara ___________________ en la clase. Yo _____________________ hablando. Ella _____________________ durmiendo. Cody, Justino, y Roberto __________________ felices.
*September 20, 2011*

**geomtry**

when two planes intersect, their intersection is a:
*September 19, 2011*

**Math**

344.80 spebds of it 3/4
*September 15, 2011*

**math**

polynomials (8m + 7) (2m +3)
*September 13, 2011*

**algerbra 2**

-3x(squared 2)-6x=0
*September 12, 2011*

**probability**

A set of five marbles is selected (without replacement) from a bag that contains 4 blue marbles, 3 green marbles, 6 yellow marbles, and 7 white marbles. How many sets of five marbles contain no more than two yellow ones?
*September 11, 2011*

**History**

but it shoes multiple choice and it has the regions but in numbers and the only one that was on east africa was 6 but it wasnt in the answer choices
*September 9, 2011*

**History**

Thats Exactly What I Put And They Said I Was Wrong
*September 9, 2011*

**History**

The Earliest Remains Of Hominid Ansestor Of Human Have Been Found In Which Region.? Anyone Could Answer This
*September 9, 2011*

**math**

I have a few other problems that I can't seem to understand... Question: Rounded to the nearest ten. I am 12,750. I am a multiple of 2. I use only 4 different number's in my 5 places... :-o
*September 5, 2011*

**math**

I am so sorry, but I am still confused especially when I read the last part of the problem... The number in my ones place is 1 less than the number in my tens place...
*September 5, 2011*

**math**

I am getting so confused with my math problems... Can you help me please?... The question is - Rounded to the nearest ten I am 800. I am not odd. All of my places have a value greater than 0. The number in my ones place is 1 less than the number in my tens place...
*September 5, 2011*

**English **

help me pleasee.
*September 4, 2011*

**math**

i am taking a job related test with many math sections. I am long out of school and need some tutorials as well as practice questions and answers. The topics are as follows: -multiplication and division of fractions and mixed numbers -calculating percentages -calculating ...
*September 3, 2011*

**math**

I am taking a job related test consisting of several math sections. I have been out of school for quite some time and am looking to find the easiest place to get tips and tutorials to solve these questions. The topics are as follows: multiplication and division of fractions ...
*September 3, 2011*

**homelandsecurity**

• Prepare a report that discusses the positive aspects of this action and the potential hazards
*September 1, 2011*

**English**

make parallel
*August 30, 2011*

**English**

i am both a quick worker and careful
*August 30, 2011*

**geometry**

The height of triangle ACE is 12 and base AE=20. A rectangle is inscribed in triangle ACE as shown in the diagram a) express the rectangle's area as a function of x and y b)Use the fact that triangle ACE is similar to BCD to write y as a function of x. c)express the ...
*August 30, 2011*

**Math**

Find the ldc for the fraction -11/245, 13/175
*August 27, 2011*

**Algebra**

Solve for u -29 + -4 + 5u
*August 27, 2011*

**Math**

Is the answer to this problem 12 pounds? A cubical block of metal weighs 6 pounds. How much will another cube of the same metal weigh if its sides are twice as long? My work: 6/12=6/x
*August 22, 2011*

**Math**

What is the solution to the problem: 2^103+ 2^103 +2^103 +2^103?
*August 22, 2011*

**math**

what would it be if i had 8x = 10
*August 9, 2011*

**math**

how do I solve this following problem step by step. 8/x = 10
*August 9, 2011*

**geometry**

Determine whether or not the given side lengths will form a right triangle.15, 11, and 2 radical 26.
*July 28, 2011*

**Math**

The difference between two positive number is 72 and one of them is divided by the other, the quotient is 4.Find those numbers. Option: a) 22&94 b) 24&96 c) 20&92 d) 30&102
*July 25, 2011*

**algebra II**

use the properties of logarithms for the expression. 5^log5(7x)
*July 17, 2011*

**algebra II logarithms**

f(x)=log4 (x)+3 how could i get this so i could graph it?
*July 17, 2011*

**math**

what is the definition of area of circle formular.
*July 17, 2011*

**algebra 2**

The pH of a solution is given by the formula pH = -log H+ , where H+ is the concentration of hydrogen ions in moles per liter in the solution. Use this formula to solve the problem. Round answer to one decimal place if necessary. Find the pH of a sample of lake water whose [H...
*July 14, 2011*

**Algebra 2 logarithms**

Use the properties of logarithms to evaluate the expression. 1. 5^log(7x) 2. 10^x + 2 log(x)=x+2 or log(x)=x-2 ????
*July 14, 2011*

**physics**

12.5
*July 13, 2011*

**math**

what isthe area of a 8 inch circle?? what are the calculations. ???
*July 3, 2011*

**rapping>???**

what does it mean when they say i came down with a chip on shoulder
*June 27, 2011*

**English **

its ok i corrected it and got a 100 all i have to do is take my finale exam and im finish with this school thank you guys so much for helping me out alot
*June 23, 2011*

**English **

nope idk you just confused me even more
*June 23, 2011*

**English **

no but can you Check My answers please
*June 23, 2011*

**English **

ok i got nothing,impress.learning,pretending,differently,second,share, and gain
*June 23, 2011*

**English **

alright please do when i finsih
*June 23, 2011*

**English **

According to Kubler Ross, The lessons that dying people teach espically valuable . dying people can look back honestly, because they have ------ to ----- by ------ or trying to -------- anyone -------. They only want to thinking about how they would do things ------- if they ...
*June 23, 2011*

**reading**

According to Kubler Ross, The lessons that dying people teach espically valuable . dying people can look back honestly, because they have ------ to ----- by ------ or trying to -------- anyone -------. They only want to thinking about how they would do things ------- if they ...
*June 23, 2011*

**science**

when water is turn into steam it expands or contacts many times or both ??? i need help with this question
*June 19, 2011*

**reading **

Examine the evidence of the Earth's shape. The sharp horizon at first suggests a flat Earth with an edge. But as you walk toward the horizon, the "edge" recedes ahead of you, implying that the Earth's surface is curved. Look also at a ship sailing out to sea...
*June 14, 2011*

**Science**

I need an Acrostic poem for the word science
*June 10, 2011*

**calculus(equating coefficients)**

Can somebody explain to me why equating coefficients work? Example: 8x^3+13x = Ax^3 + 2Ax + Bx^2 + 2B + Cx + D expanded into: 8x^3 + 13x = Ax^3 + Bx^2 + (2A+C)x + 2(B+D) where A,B,C,D are constants. Why does 8 = A; 0 = B; 13 = 2A + C; etc. I know they have same power variables...
*June 6, 2011*

**Math Deadline Approaching: Please Help**

Thanks....
*June 6, 2011*

**Deadline Approaching: Please Help**

SIMPLEX METHOD - Table: Nutrient Peanuts Raisins M&Ms Pretzels Calories 855 435 1024 162 Protein 34.57 4.67 9.01 3.87 Fat 72.50 0.67 43.95 1.49 Carbs 31.40 114.74 148.12 33.68 Suppose that you want to make at most 10 cups of trail mix, using all the ingredients. You want each ...
*June 6, 2011*

**Math**

What is the proper constraint for this: "You want each of the ingredients to contribute at least 10% of the total volume of the mix made."
*June 6, 2011*

**Math**

I have the objective, I just need the constraints. If you can please list all of the constraints. The constraint that is stumping me is the one where I have to show 10% of the total. Thanks!!!!!
*June 6, 2011*

**Math**

MathMate - I'm still confused, please see below. Thanks!! SIMPLEX METHOD - Table: Nutrient Peanuts Raisins M&Ms Pretzels Calories 855 435 1024 162 Protein 34.57 4.67 9.01 3.87 Fat 72.50 0.67 43.95 1.49 Carbs 31.40 114.74 148.12 33.68 Suppose that you want to make at most ...
*June 6, 2011*

**Math**

MathMate, Sorry.. still confused. I set up the constraints as x1>1, x2>1, x3>1, x4>1 but I'm not getting the answer. Are those contraints correct or is there another way to write it?
*June 4, 2011*

**Math**

SIMPLEX METHOD - Table: Nutrient Peanuts Raisins M&Ms Pretzels Calories 855 435 1024 162 Protein 34.57 4.67 9.01 3.87 Fat 72.50 0.67 43.95 1.49 Carbs 31.40 114.74 148.12 33.68 Suppose that you want to make at most 10 cups of trail mix, using all the ingredients. You want each ...
*June 4, 2011*

**math **

a drum with a 24'' od has a circumference of _''. ????
*June 4, 2011*

**math **

6 cu ft contain_ cu in.???
*June 4, 2011*

**math **

18.84
*June 4, 2011*

**math **

985.96 is this correct
*June 4, 2011*

**math **

the volume of a tank that is 2'- 0'' in diameter and 6' -0'' long is _ cu ft. ???? please help
*June 4, 2011*

**math **

a 31'' diameter circle has an are of _ sq ft.????
*June 3, 2011*

**math**

96 cu in. is this correct
*June 3, 2011*

**math**

the volume of a container that is 8'' long , 4 '' deep, and 3'' high is _ cu in. ???
*June 3, 2011*

**math**

754.385 is this correct
*June 3, 2011*

**math**

a 31'' diameter circle has an area of _ sq ft. ???
*June 3, 2011*

**math**

the radius of a13.5' diameter circle is _ ' ???
*May 29, 2011*

**english / laungage**

3. C 4.d 5.c
*May 24, 2011*

**trig**

Find the angle between 0 and 2pi that is coterminal with negative one half pi; expressing the answer in radians in terms of pi.
*May 19, 2011*

**Chemistry**

its not 21.3 nor 10.7
*May 16, 2011*

**Chemistry**

correct it is 0.84 goodluck cuz i had to trust this answer and it was right.
*May 16, 2011*

**math**

answer in simplest radical form. sin 90 degrees
*May 14, 2011*

**math**

answer in simplest radical form. sin 90 degrees
*May 14, 2011*

**math**

A coin is tossed four times. Find the probability of each of the following: P(exactly 1 head) I know we have to use to this formula p(x=0)=nCk(p)^k(1-p)^n-k How do you find P? if n=4
*May 11, 2011*

**grammar**

fire can be either friendly or a foe, depending on the situation. make parallel
*May 10, 2011*

**Chemistry**

Choose the two half-reactions from a table of standard reduction potentials that most closely approximate the reaction that occur within the battery (Pacemaker). What is the standard voltage generated by a cell operating with these half-reactions? (i got +3.85V). The actual ...
*May 7, 2011*

**Chemistry**

Thank you so much
*May 7, 2011*

**Chemistry**

What is the half-cell reactions in a hydrogen fuel cell, and calculate the standard voltage at 25°C H2(g)+ O2(g)------>2H2O(l)
*May 7, 2011*

**Chemistry**

Choose the two half-reactions from a table of standard reduction potentials that most closely approximate the reaction that occur within the battery. What is the standard voltage generated by a cell operating with these half-reactions? 2Li(s) + Ag2CrO4(s) --------> Li2CrO4(...
*May 7, 2011*

**Chemistry**

Heart pacemakers are often powered by lithium-silver chromate “button” batteries. The overall cell reaction is: 2Li(s) + Ag2CrO4(s) --------> Li2CrO4(s) + 2Ag(s) Lithium metal is the reactant at one of the electrodes of the battery. Is it the anode or the cathode?
*May 7, 2011*

**Chemistry**

Thank you very much. This helps a great deal
*May 7, 2011*

**Chemistry**

Explain with values and reactions from standard reduction potentials tables why neither gold (I) nor gold (III) not to mention the base metal itself, tarnishes (that is can be oxidized by exposure to air)
*May 7, 2011*

**Chemistry**

How much time in years (assume a 365 day yr) would it take for a 1.6678g sample of 239Np to decay to a mass of 0.8671g if it has a half life of 2.030*10^5s
*May 6, 2011*

**Chemistry**

How much energy in KJ is release to form one mole of 123Sb from protons and neutrons if the atom has a mass of 122.90422 amu? Please remember to include the mass of electrons in calculations.
*May 6, 2011*

**Chemistry**

A rock containing 238U and 206Pb was examined to determine its appropriate age. The molar ratio of 206Pb to 238U was 0.1462. Assuming no lead was originally present and that all lead formed remained in the rock. What is the age of the rock in years? The half life of 238U is 4....
*May 6, 2011*

**Statistics**

Hi I am a college student in wireless technology but am only very sketchy on statistics. I'm am trying to write a program to tell me if activity is unusual. I can read the activity of a person from a motion detector from day to day i.e. mon activity - 250 times tues - 300 ...
*May 6, 2011*

**geometry**

Jackson is creating a water garden surrounded by a triangular patch of grass. If the pond will take up the space indicated by the circle, how many square feet of sod will he need to complete the garden (use 3.14 for and round your answer up to the next foot)?
*May 4, 2011*

**math**

16 = 16x^2 - 64x + 64 0 = 16x^2 - 64x + 64 - 16 (using quadratic formula) x= 3 or x =1
*May 3, 2011*

**Math**

Anyone help?
*May 2, 2011*

**Math**

What other post?
*May 2, 2011*

**Math**

Can someone guide me with this question? Four teachers and five students have volunteered to serve on the school's fundraising committee, which is chaired by the principal. The principal wishes to select the committee using a random draw. He places each person's name ...
*May 2, 2011*

**Math**

Should I create a grid 6 by 5? :S
*April 27, 2011*

**Math**

faizel wants to travel from his house to the hardware store that is six blocks east and five blocks south of his home. If he walks east and south, how many different different routes can he follow from his house to the store? Can somebody help me setup this question? I don'...
*April 27, 2011*

**Math**

Find the instantaneous rate of change for the function at the given value. f(x)=x^2+2x at x=-4
*April 27, 2011*

**Math**

Using the arrangement of letters in the margin, compute the number of paths that spell the word MATHEMATICS if all paths must start at the top and move diagonally down through the letters. M A A T T T H H H H E E E M M M M A A A T T I I I C C S I only got up to E E E, I don&#...
*April 26, 2011*

**Calculus**

Could someone work this out so I understand it. Thanks Given the supply function p=S(x)=5(e^0.02x-1) Find the average price (in dollars)over the supply interval [31,36] The 0.02x in the only thing ^ on the e
*April 25, 2011*

**History**

how trading helped sparta economy?
*April 25, 2011*

**world history**

The Europeans desire for profit affected the people of Congo by taking away their freedom, forcing them into slavery, taking away their customs, affected the economy etc.
*April 24, 2011*

**Chemistry**

The vapor pressure of water at 95C is normally 6.33.9 but decreased to 561.2mmHg upon addition of an unknown amount of NaOCl to 164.3g of water at this temp. How many grams of NaOCl was added assuming complete dissociation of the solute
*April 23, 2011*