Thursday

December 8, 2016
Total # Posts: 669

**algebra**

A block of ice loses one third of its weight every hour. After 2 hours, the block weighs 40 pounds. How much did the block weigh to begin with?

*January 4, 2011*

**algebra**

Chanina bought a pair of jeans which originally cost $88 at a 25% discount. How much was marked off the original price?

*January 4, 2011*

**algebra**

|3n + 5| = 7

*January 4, 2011*

**algebra**

Let h(x) = 2x + 7. Find the value of h(x) + 14

*January 2, 2011*

**algebra**

Let f(x) = 9x - 4.5. Find the value of f(2).

*January 2, 2011*

**algebra**

Find the value of x so that the line passing through the points will have the given slope: (x, 6) and (10, -3) with a slope of -3/2. Type only the number in the blank

*January 2, 2011*

**algebra**

2a = 3a + 4c for a

*January 2, 2011*

**algebra**

2a = 3a + 4c for a

*January 2, 2011*

**algebra**

2x + y = 9 for y

*January 2, 2011*

**algebra**

3x + y = 6

*January 2, 2011*

**algebra**

Two cars are driving toward each other from opposite directions. If one is driving 55 mph, the other is driving 60 mph and the cars are 500 miles apart, how long will it be before they pass each other? Round to the nearest tenth of an hour

*January 2, 2011*

**algebra**

Last year, there were 120 seniors in Limon High School. This year there are 145. What is the percent of increase? Round to the nearest percent.

*January 2, 2011*

**algebra**

4(c - 3) = 4c + 8

*January 2, 2011*

**algebra**

3c+4=4c-17

*January 2, 2011*

**algebra**

-1/6m=22

*January 2, 2011*

**algebra**

Is the following always, sometimes or never true? X + 1 = X + 0

*January 2, 2011*

**social studies**

i need info on iran's nuclear program asap so can u tell me were to get it

*December 13, 2010*

**physics**

a motor turns 21.6 revolutions in 0.75 second. what is the angular speed of the motor in rpm? in radians per second?

*December 9, 2010*

**1st grade**

0+4 1+3 2+2 3+1 4+0

*December 6, 2010*

**college**

A train is heading due west from St. Louis. At noon, a plane flying horizontally due north at a fixed altitude of 4 miles passes directly over the train. When the train has traveled another mile, it is going 80 mph, and the plane has traveled another 5 miles and is going 500 ...

*December 6, 2010*

**Physics**

______1. Which of the following is NOT true about a stone dropped from the third floor of the high school building? A. It is a free-falling object. B. It accelerates at the rate of 9.8 m/s2. C. It decelerates at the rate of 9.8 m/s2. D. Its initial velocity is zero.

*November 29, 2010*

**math**

[w^1 / w^-3]^-4 = w3 ? is this correct?

*November 20, 2010*

**Math**

[w^1 / w^-3]^-4 = w3 ? is this correct?

*November 20, 2010*

**Math**

[w^1 / w^-3] = w3 ? is this correct?

*November 20, 2010*

**statistics**

A marketing research ﬁrm suspects that a particular product has higher name recognition among college graduates than among high school graduates. A sample from each population is selected, and each asked if they have heard of the product in question. A summary of the ...

*November 17, 2010*

**1st grade grammar**

Capaitalize. joe is cool.

*November 8, 2010*

**physics please help**

The drawing shows a collision between two pucks on an air-hockey table. Puck A has a mass of 0.030 kg and is moving along the x axis with a velocity of +5.5 m/s. It makes a collision with puck B, which has a mass of 0.055 kg and is initially at rest. The collision is not head-...

*November 7, 2010*

**physics please help**

A 5.00 kg ball (ball 1), moving to the right at a velocity of +4.00 m/s on a frictionless table, collides head-on with a stationary 7.60 kg ball (ball 2). Find the final velocities of the balls if the collision is as specified below. (a) elastic collision ball 1 ball 2 (b) ...

*November 7, 2010*

**physics**

What is the wavelength of a proton traveling at a speed of 6.87 km/s

*October 30, 2010*

**physics**

A satellite has a mass of 5950 kg and is in a circular orbit 3.80 10^5 m above the surface of a planet. The period of the orbit is two hours. The radius of the planet is 4.15 10^6 m. What is the true weight of the satellite when it is at rest on the planet's surface?

*October 28, 2010*

**physics**

A satellite has a mass of 5950 kg and is in a circular orbit 3.80 105 m above the surface of a planet. The period of the orbit is two hours. The radius of the planet is 4.15 106 m. What is the true weight of the satellite when it is at rest on the planet's surface

*October 28, 2010*

**physics**

A 280 N force is pulling an 80.0 kg refrigerator across a horizontal surface. The force acts at an angle of 18.0° above the surface. The coefficient of kinetic friction is 0.200, and the refrigerator moves a distance of 6.00 m. (a) Find the work done by the pulling force...

*October 28, 2010*

**physics**

A 47.0 g golf ball is driven from the tee with an initial speed of 60.0 m/s and rises to a height of 24.4 m. (a) Neglect air resistance and determine the kinetic energy of the ball at its highest point. (b) What is its speed when it is 7.0 m below its highest point?

*October 26, 2010*

**physics**

A 47.0 g golf ball is driven from the tee with an initial speed of 60.0 m/s and rises to a height of 24.4 m. (a) Neglect air resistance and determine the kinetic energy of the ball at its highest point. (b) What is its speed when it is 7.0 m below its highest point?

*October 26, 2010*

**physics**

A motorcycle (mass of cycle plus rider = 3.0 102 kg) is traveling at a steady speed of 20 m/s. The force of air resistance acting on the cycle and rider is 1.8 102 N. Find the power necessary to sustain this speed under the following conditions. (a) the road is level (b) the ...

*October 26, 2010*

**physics**

A projectile of mass 1.450 kg is shot straight up with an initial speed of 20.0 m/s. (a) How high would it go if there were no air friction? (b) If the projectile rises to a maximum height of only 13.9 m, determine the magnitude of the average force due to air resistance.

*October 26, 2010*

**Statistics and Probability**

All printed circuit boards (PCB) that are manufactured at a certain plant are inspected. An analysis of the company’s record shows that 22% of all PCBs are flawed in some way. Of those that are flawed, 84% are reparable but the rest must be discarded. If a newly produced ...

*October 25, 2010*

**Statistics/Probability**

in roulette, there are 18 red 18 black and 2 green slots ball rolled 25 times what is the prob that the ball does not fall into any green slots? how do you set this up? I did 1-.0536 and its wrong how to start? thanks so much!

*October 25, 2010*

**Statistics/Probability**

in roulette, there are 18 red 18 black and 2 green slots ball rolled 25 times what is the prob that the ball does not fall into any green slots? how do you set this up? I did 1-.0536 and its wrong how to start? thanks so much!

*October 25, 2010*

**physics 11**

A river has a current of 5 m/s. A boat tries to head directly across at 4 m/s. When the boat reaches the other side it is 30m downstream. How wide is the river ?

*October 19, 2010*

**Astronomy**

it depends

*October 19, 2010*

**math**

i don't know

*October 8, 2010*

**math**

where would the parentheses go in this problem 6*6+6*6-6=426

*October 8, 2010*

**math**

thanks gina!!!

*October 8, 2010*

**math**

6+6/6*6+6=24 where do I put the parentheses to make it equal 24?

*October 8, 2010*

**PHYSICS**

A car travels at a constant speed around a circular track whose radius is 3.1 km. The car goes once around the track in 280 s. What is the magnitude of the centripetal acceleration of the car?

*September 30, 2010*

**3rd grade**

Hi

*September 27, 2010*

**English Literature**

I understand that, but what does Hrothgar say about is men and why does 'he' need to disparage Beowulf's actions as being foolhardy?

*September 14, 2010*

**English Literature**

ohh. i also didn't catch what Hrothgar's comments on his men were. and does "him" in the last sentence refer to Hrothgar or Unferth?

*September 14, 2010*

**English Literature**

That he believes in Grendel

*September 14, 2010*

**English Literature**

I still don't understand how that applies when thinking about Grendel...

*September 14, 2010*

**English Literature**

No because he doesnt want anyone else to be more famous/glorious than him. Rude and they try to put you down/make you feel like you will not be able to do it

*September 14, 2010*

**English Literature**

I needed help tying the first question into the second one--like how does the fact that Unferth is jealous of Beowulf apply when thinking about Grendel?

*September 14, 2010*

**English Literature**

Unferth accuses Beowulf of "wantonly tempting the waves" and risking his life for a "silly boast." Given what Beowulf and the narrator say about Unferth, how is Unferth's comment a reflection back on himself? How does it apply when we think about ...

*September 14, 2010*

**math**

1/4=2/8 2/8+1/8= 3/8

*September 12, 2010*

**Economics**

1. Explain why the idea of scarcity is the starting point for thinking economically. 2. Explain why an economist might look at hundreds of kids standing in line for lunch asd say, "there is an example of scarcity."

*September 12, 2010*

**algebra**

y=2x-6 4x-2(2x-6)= 12 4x-4x+12=12 12=12 infinite number of solutions

*September 12, 2010*

**4th grade**

Juan is thinking of an 8-digit number with a 4 in the hundreds place and a 1 in the ones place. What number would fit with these clues

*September 9, 2010*

**spanish**

i need help on this stem changer tu (pensar)______ que tener un perro es una cosa buena

*September 9, 2010*

**Math**

Rounded to the nearest ten I am 40. the sum of my digits is 11.. What is it?

*September 7, 2010*

**Algebra 1**

you are hiking. the total weigh of your backpack and its contents is 13 3/8 pounds. you want to carry no more than 15 pounds. how many extra water bottles can you add to your backpack if each bottle weighs 3/4 pound?

*August 30, 2010*

**Math**

The student needs to score a 50.

*August 27, 2010*

**Math**

The student needs to score a 81.

*August 27, 2010*

**IT210 week7/ DQ1**

Please post pseudocode or code showing how you would access a file as either a database or a sequential file. Describe in your code the differences between accessing the data. Post what is needed for this weeks assignment.

*August 10, 2010*

**math **

What number can be divided by 15, 5, and 3? The answer is 30 13/15 + 2/3 - 3/5 = 13/15 + 10/15 - 9/15 = 14/15

*August 10, 2010*

**Math **

Using the terms factors, divisors, multiple, product, and divisible by, write as mant statements as you can about the number sentence 4x7=28.

*August 9, 2010*

**math-word problem**

The shadow of a 4 foot pole is 6 feet long at the same time the shadow of a tower is 52.5 feet long. How tall is the tower?

*July 31, 2010*

**social studies**

The task of economic policy is to create a prosperous America. The unfinished task of prosperous Americans is to build a Great Society. Our accomplishments have been many; these tasks remain unfinished: > to achieve full employment without inflation; > to restore ...

*July 12, 2010*

**social studies**

Definition of Horse Canal

*May 20, 2010*

**social studies**

What is another name for the equator?

*May 20, 2010*

**math**

A snail climbs a wall that is 16 feet high. Each day the snail climbs 5 feet, but each night it slips back down 3 feet. How many days will it take for the snail to get to the top of the wall

*May 19, 2010*

**math**

g oooooooooooooooooooooooooooooooooooooooooooooooodddddddddddddd

*May 10, 2010*

**Chemistry**

To raise the temperature of 5 kg of water from 20 0C to 30 0C, a 2-kg iron bar is heated and then dropped into the water. What should the temperature of the bar be (ciron = 0.46 kJ/kg 0C)

*May 3, 2010*

**science**

what is believed to be the first living thing on earth?

*April 28, 2010*

**8th grade**

ABoringJob

*March 20, 2010*

**physics**

I forgot to add this part. assume this wire has a resistance R which is a constant as the hoop is shrunk. (a) What will be the current I which is induced and show the direction of this current in your figure. (b) What is the magnitude of the induced B-field at the center of ...

*March 11, 2010*

**physics**

A circular conducting hoop of wire has a constant magnetic field |~B | = 1.7 Tesla passing through it so that the field direction is perpendicular to the plane of the hoop. There is an EMF induced in the hoop with magnitude 2.6 Volts because the hoops area A is shrinking (or ...

*March 11, 2010*

**physics**

A long straight wire of radius R = 1 cm carries a total current I = 1 Amp which flows uniformly through the cross-section of the wire. Draw a diagram of this wire and the current and the magnetic field which is produced. Using Ampere’s law solve for the magnitude of the ...

*March 11, 2010*

**physics**

how to see if the barber has cut your hair properly at the back?

*March 10, 2010*

**Temple College**

had some Psychology homework resereching a female Psychiatrist named Viola Brody. but when i reaserch her online through all the major search engines i come up empty. all i've found so far is that she wrote a book witch i already knew. can you help me with a place to look ...

*March 8, 2010*

**physics**

In the operating Room, anesthesiologists use mass spectrometers to monitor the respiratory gases of patients undergoing surgery. One gas that is often monitored is the anesthetic isoflourane (molecular mass = 3.06 · 10−25 kg). In a spectrometer, a singly ionized ...

*March 4, 2010*

**math**

mr. murphy's will: john murphy was a man with a loving family, a successful career and considerable wialth. one day, upon his realizing hthat he was approaching retirement age, he decided to write up his will. shortyly thereaftr he died. Under the terms of Mr. Murphy;s ...

*February 20, 2010*

**Math**

Jenna and Tony need quarters for bus fare. Jenna has 3 x as many as Tony. Together they have $11.00 in quarters. How many coins does each have?

*February 15, 2010*

**Math**

j]pmp=,k ' , \k\-0kppj'[

*February 10, 2010*

**Physics**

Yes, each half will become a magnet because the domains will just reinforce each other and create new north - south poles.

*January 15, 2010*

**english**

how do you get seven letters out of the word multiply you have to change letters around

*January 13, 2010*

**social studies**

why is 1776 an important year in American History? What document was written in this year

*January 10, 2010*

**5th grade math**

10 divided by 975

*December 17, 2009*

**chemistry**

a chunk of silver has a heat capacity of 42.8J/degrees celcius and a mass of 181g. calculate the specific heat of silver.

*November 16, 2009*

**ela**

what would you do if you woke up one morning and it is raining chocolate pudding, who would you tell, what would happen when you meet your friends?

*November 6, 2009*

**math**

0rad/s2

*November 4, 2009*

**Statistics**

The Internal Revenue Service is studying contributions to charity. The mean calculated from a random sample of 36 returns is $150. Assume that the population standard deviation is known and equal to $20. Construct a 98 percent confidence interval for the population mean.

*October 29, 2009*

**Physics**

What are two quantities of an object launched parallel to the ground which are equal to zero? I think one of the two is vertical velocity.

*October 26, 2009*

**math**

-8,000,000,000+999,999,999

*October 22, 2009*

**Physics - URGENT**

A boat travels at 3.8 m/s and heads straight across a river 240m wide at an angle of 145'. The river flows at 1.6 m/s. a. What is the boat's resultant speed with respect to the river bank? b. How long does ti take the boat to cross the river? c. How far downstream or ...

*October 19, 2009*

**Physics**

A boat travels at 3.8 m/s and heads straight across a river 240m wide at an angle of 145'. The river flows at 1.6 m/s. a. What is the boat's resultant speed with respect to the river bank? b. How long does ti take the boat to cross the river? c. How far downstream or ...

*October 19, 2009*

**Physics**

A boat travels at 3.8 m/s and heads straight across a river 240m wide at an angle of 145'. The river flows at 1.6 m/s. a. What is the boat's resultant speed with respect to the river bank? b. How long does ti take the boat to cross the river? c. How far downstream or ...

*October 18, 2009*

**physics - need help right now.**

A boat travels at 3.8 m/s and heads straight across a river 240m wide at an angle of 145'. The river flows at 1.6 m/s. a. What is the boat's resultant speed with respect to the river bank? b. How long does ti take the boat to cross the river? c. How far downstream or ...

*October 18, 2009*

**Physics**

A boat travels at 3.8 m/s and heads straight across a river 240m wide at an angle of 145'. The river flows at 1.6 m/s. a. What is the boat's resultant speed with respect to the river bank? b. How long does ti take the boat to cross the river? c. How far downstream or ...

*October 18, 2009*