# Posts by Jay

Total # Posts: 1,665

**chemistry**

0.268

*August 2, 2012*

**math**

how many cubic feet of air arein a room with dimensions of 12'x 10'x 8'

*July 29, 2012*

**Probability/Combinatorics**

If 4 cards are drawn at random from a standard deck of cards, what are the odds, or probability, that the first three will be of the same suit and the fourth of another suit?

*July 20, 2012*

**Pre-Calc, Probability**

From a deck of 52 playing cards, 7 cards are dealt. What are the odds of the following event occuring --4 From one suit, 3 from another The probability of the event occurring is also acceptable. But, the answer is 99/16722971 (as far as the odds go

*July 20, 2012*

**physics**

Jason applies a force of 4.00 newtons to a sled at an angle 62.0 degrees from the ground. What is the component of force effective in pulling the sled horizontally along the ground?

*July 18, 2012*

**Econ**

Assume that American rise sells for $100 per bushel, Japanese rice sells for 16,000 yen per bushel, and the nominal exchange rate is 80 yen per dollar. A.Explain how you could make a profit from this situation. What would be your profit per bushel of rice? If other people ...

*July 17, 2012*

**physics**

A 10000 Hz tone must have what intensity level to seem as loud as a 50 Hz tone that has a 100 dB sound level? (See Fig. 12-7.) 12_07.gif

*July 15, 2012*

**math**

1476.75 cubic ft

*July 12, 2012*

**Physics**

I got a similar answer of 79.0 cm/s using the conservation of energy equation. U(i) + K(i) = U(f) + U(f) Thank you for the help. And sorry for asking this question. I didn't see the similar question when I searched mine in the search bar.

*July 11, 2012*

**Physics**

K is 5.3 N/m. Why are you using 4.6 N/m?

*July 11, 2012*

**Physics**

A 100-g block hangs from a spring with k = 5.3 N/m. At t = 0 s, the block is 20.0 cm below the equilibrium position and moving upward with a speed of 194 cm/s. What is the block's speed when the displacement from equilibrium is 31.5 cm?

*July 11, 2012*

**math**

-29 = -4 + 5u

*July 10, 2012*

**algebra**

If an electronic circuit experiences a loss of 3 decibels with an input power of 6 watts, what would its output power be, to the nearest watt?

*July 1, 2012*

**math**

How can i measure or get the correct size of a bicycle rim.

*June 30, 2012*

**Physics**

The Moon orbits the Earth at a distance of 3.85 x 108 m. Assume that this distance is between the centers of the Earth and the Moon and that the mass of the Earth is 5.98 x 1024 kg. Find the period for the Moon's motion around the Earth. Express the answer in days. The ...

*June 25, 2012*

**math**

could you please tell me how you got the answer reguarding the 2" pipe i would really appreciate it. Thanks

*June 24, 2012*

**math**

Ido not know how you got the ansmwer could you please explain.

*June 24, 2012*

**math**

A pipe is 2" outside diameter and it has 3/16" walls .What is the inside diameter,?

*June 24, 2012*

**geometry**

Can somebody help me with Proofs in Geometry Given:M<ABE=M<CBD

*June 19, 2012*

**Physics**

2. A body fired vertically up reaches a maximum height of 120 m. The location at which the kinetic energy is 75% of the potential energy is...

*June 14, 2012*

**calculus (check my work please)**

right, because my answer can be simplified into: sec^5(x)/5-sec^3(x)/3

*June 7, 2012*

**calculus (check my work please)**

I did, I got a completely different result. Also, SAY SOMETHING USEFUL NEXT TIME!!! tired of you spamming that stupid reply

*June 7, 2012*

**calculus (check my work please)**

Not sure if it is right, I have check with the answer in the book and a few integral calculators but they seem to get a different answer ∫ sec^3(x)tan^3(x) dx ∫ sec^3(x)tan(x)(sec^2(x)-1) dx ∫ tan(x)sec(x)[sec^4(x)-sec^2(x)] dx ∫ tan(x)sec(x)[(tan^2(x)+...

*June 7, 2012*

**Integral Calculus**

I figured it out @Ethan, you can't substitute because it is x^2 over(x^2+1)

*May 24, 2012*

**Integral Calculus**

great, I can find the steps and i have the answer already. i just don't understand the step to be made after (1/2)x^2*arctan(x)-1/2∫x^2/(x^2+1) dx

*May 24, 2012*

**Integral Calculus**

Trying to find ∫x*arctan(x)dx, but I can't figure out what do to after: (1/2)x^2*arctan(x)-1/2∫x^2/(x^2+1) dx

*May 24, 2012*

**Math**

Pair of functions fx=3x and g(x) =3x^2-2x+3 find the following (f◦g)(x=)

*May 16, 2012*

**math**

a cb radio station c is located 3 mi from the interstate highway h. the station has a range of 6.1 mi in all directions from the station. if the interstate is along a straight line, how many miles of highway are in the range of this staion?

*May 15, 2012*

**physics**

if you get really lazy you can always use calories (1 small calorie=the energy to increase 1 gram of water by 1 degree Celsius)

*May 13, 2012*

**Computers**

suppose to write a program for it? or what are you trying to do?

*May 13, 2012*

**Math**

5:15+12:00 (the 12 hours is added because it is PM) - 8:00 (the time he starts, because you don't want to include the time for 8 AM for that day)- 0:45 (he doesn't get paid for lunch)=8:30 (time he works for one day) 5:15+12:00-8:00-0:45=8:30 8:30 or 8.5 hours * 5 days...

*May 12, 2012*

**MATH**

3x-1=y slope: 3; Y intercept:-1 x-3=y slope: 1; Y intercept:-3 3x-8=y slope: 3; Y intercept:-8 y-2=3(x-4)-->y=3x-10 y-5=3/8(x-3)-->y=3/8x-49/8

*May 12, 2012*

**Math**

1= 1 week for 1 car also, the rest of the answers have bad form (magnitude then units usually)

*May 12, 2012*

**precalculus algebra**

3*20<125; you sold more then 20 tickets or didn't make $125

*May 12, 2012*

**math**

which product rule? there are a lot of rules by that name

*May 12, 2012*

**physics**

levers (need to know about torque), collisions (need to know about momentum/impulse), verifying that force=mass*acceleration those are three ideas off the top of my head, need to know the purpose of the project and how much physics you know to make a better list.

*May 12, 2012*

**physics**

not enough info for the first one, what angle is the hill at? also, need either a final or initial velocity of some kind second problem: what are the choices? it sounds like it is multiple choice

*May 12, 2012*

**Physics**

here is a diagram, with M1 being the larger mass and M2 being the smaller mass. delete all x's wxww.csupomona.exdu/~skboddeker/131/notes/pulleyblock.gif

*May 11, 2012*

**Physics**

A pair of masses are attached by a string that runs over a pulley. The larger mass is on a frictionless incline that makes an angle of 18 degree with the ground. the smaller mass is hanging in the air off the pulley. the larger mass is given an initial velocity of 1.7 m/s up ...

*May 11, 2012*

**physics**

a) mass*gravity*height= gravitational potential energy. 17*103*9.8= x Joules b) as the object falls the potential energy is converted to kinetic. so just before it hits the ground all of the potential energy has become kinetic.

*May 11, 2012*

**Physics 6A**

you need to add units to the measurements. Ill assume the following: 330 kilograms, 3.8 meters, 23 degrees. mass*gravity*amount of gravity working= 330*9.8*cos(90-23)=force or work of gravity if the man fights gravity the entire time then his force is equal and opposite to ...

*May 11, 2012*

**physics....**

impulse is Newtons* seconds say you have the forces 1N and 2N. if you apply the 1N to an object for say 10 seconds then the impulse is 10N*s. when you apply the 2N force, it would take 5 seconds to match the same impulse as the 1N. aka: if the smaller force is applied longer ...

*May 10, 2012*

**english**

present participial phrase

*May 8, 2012*

**english**

(three-act farce) and adjective clause

*May 8, 2012*

**english**

What type of clause or phrase is italicized in the sentence below? The play, a three-act farce, amused everyone. please help fast!!

*May 8, 2012*

**math probability**

a 3 section spinner which each outcome is not equally likely.if you spin the spinner once,what is the probability that it will stop on a?

*May 7, 2012*

**MATH**

You only add or subtract like terms.

*May 2, 2012*

**Math-Algebra 1**

1920/10 = 192 24*8= 192

*May 2, 2012*

**Algebra**

Write an equation in standard form (slope-intecept form) of the line passing through the pair of points (3,4) and (5,8) containing point (5,9) and parallel to the line.

*May 1, 2012*

**Algebra**

I am still having trouble solving this problem. Use the quadratic formula to solve this equation: 4k(k+13)=13

*April 26, 2012*

**Algebra**

sqrt(q^2+7q+6)-q-3=0

*April 26, 2012*

**Algebra**

Use the quadratic equation to solve the equation: 4k(k+13)=13

*April 26, 2012*

**Algebra**

Solve for "x" using the quadratic formula: X^2-4x-21=0

*April 26, 2012*

**Algebra**

3 divided by 5 times the square root of 5 + 3 times the square root of 2. (This problem is written as a fraction.)

*April 25, 2012*

**Algebra**

Square root of (q^2+7q+6) minus q minus 3=0. Minus 3 and minus q are not under he radical sign.

*April 25, 2012*

**Algebra**

12 times square root of (z-1)= 3 times the square root of (3z+1050)

*April 25, 2012*

**Algebra**

(8-i)^2(8+i)^2

*April 24, 2012*

**Algebra**

(8-i)^2(8+i)^2

*April 24, 2012*

**Algebra**

(6 times square root of 3 + square root of 5)(square root of 3 - 4 times the squae root of 5)

*April 24, 2012*

**Algebra**

Multiply: (6 times square of 5 + square root of 5)(square root of 3 - 4 times square of 5) Note: How do I type the symbol for square root?

*April 22, 2012*

**Algebra**

Simplify the root. The square root of (-x)^14. Why is the answer the absolute value x^7?

*April 18, 2012*

**Health Science**

Implementation of informatics has shown to be effective in many areas of health care. Perform a brief literature review and discuss one area that has shown significant savings in the operating budget.

*April 16, 2012*

**economics**

one of the things that works to make sure consumers keep getting better products at better prices is

*April 15, 2012*

**math**

is 32oz a half gallon

*April 15, 2012*

**English**

1. what sources should you include in your works cited list? a. all of the sources that you read whether you used them in the paper. b. only the sources that have a parenthetical citation in your paper. c. most of the sources that have a parenthetical citation in your paper. d...

*April 8, 2012*

**Algebra**

(7/w+2)+(-8w-2/w^2+2w)-(6-w/w)

*April 5, 2012*

**Algebra**

y-(3y-7)/7 divided by(20/14)+5/2y

*April 5, 2012*

**Algebra**

y=kx/wz

*April 4, 2012*

**Algebra**

Determine whether the equation represents direct, inverse,joint,or combined variation. y=31x/wz If it is combined, please explain to me.

*April 4, 2012*

**Algebra**

y-3y-7/7/20/14+5/2y

*April 3, 2012*

**Science**

d potential energy

*April 2, 2012*

**algebra**

Add or subtract as indicated. 5x/x+3+28/x-3-90/x^2-9

*April 1, 2012*

**algebra**

z varies directly as x^2. If z=36 when x=3,find zwhen x=4.

*March 30, 2012*

**Math**

if a rifleman averages 8 hits out of 10 shots at a target, what is the probability that he will hit the target in 3 out of 4 shots

*March 29, 2012*

**Statistics**

if a rifleman averages 8 hits out of 10 shots at a target, what is the probability that he will hit the target in 3 out of 4 shots

*March 29, 2012*

**physics**

The electromagnetic wave that delivers a cellular phone call to a car has a magnetic field with an rms value of 1.90 10-10 T. The wave passes perpendicularly through an open window, the area of which is 0.20 m2. How much energy does this wave carry through the window during a ...

*March 27, 2012*

**Algebra**

Problem: $6300 is invested, part of it at 12% and part of it at 9%. For a certain year, the total yield is $660.00. How much was invested at each year?

*March 24, 2012*

**algebra**

Question #1 The price of 7 citrons and 10 fragrant wood apples is 88 units. The price of 10 citrons and 7 fragrant wood apples is 82 units. Find the price of a citron and the price of a wood apple. I used 17x=170?????? Question #2 $6300 is invested, part of it at 12% and part ...

*March 24, 2012*

**pre-algebra**

3.5 yers

*March 23, 2012*

**algebra**

I do not understand this problem: Factor by grouping: 1-c+cy-y

*March 22, 2012*

**physics**

22.57 J

*March 21, 2012*

**algebra**

800 is 22% of what number

*March 3, 2012*

**Health**

Maintaining a healthy diet can protect you from? A. Alcohol abuse B. Drug abuse C. Sickle cell disease D. Some cancers

*March 1, 2012*

**Human Service**

when is it inappropriate to share a hunch? Why?

*February 27, 2012*

**programming logic**

The program will accept user input to store the student's first and last name . If the name is ZZZ, then the program will end. The program will accept: a text entry for the class number (e.g., CGS 1000, COP 1000, etc.) a numeric value for the class grade a value of ZZZ ...

*February 20, 2012*

**algebra**

Find A ∪ B. (Enter your answers as a comma-separated list.) A = {2, 4}, B = {0, 1, 2, 3, 4, 5}

*February 16, 2012*

**science**

heck yea

*February 16, 2012*

**science**

When girls get pregnant, how do they babies get defected?

*February 16, 2012*

**algebra**

Al has 76 nickels and dimes worth$5.55. How many of each coins does Al have?

*February 15, 2012*

**statistics**

How is the rejection region defined and how is that related to the z-score and the p value? When do you reject or fail to reject the null hypothesis? Why do you think statisticians are asked to complete hypothesis testing? Can you think of examples in courts, in medicine, or ...

*February 14, 2012*

**physics**

A 1 500-kg car rounds an unbanked curve with a radius of 52 m at a speed of 12 m/s. What minimum coefficient of friction must exist between the road and tires to prevent the car from slipping? (g = 9.8 m/s2)

*February 9, 2012*

**statistics**

Assume that a population is normally distributed with a mean of 100 and a standard deviation of 15. Would it be unusual for the mean of a sample of 3 to be 115 or more? Why or why not?

*February 1, 2012*

**ecology**

In what environments would you expect obligate homeotherms to have the most significant advantages, and in what environments might facultative homeotherms have an edge?

*January 29, 2012*

**Managerial Economics**

The demand function for a cola-type soft drink in general is Q = 20-2P, where Q stands for quantity and P stands for price. At which price would a change in price and quantity result in approximately no change in total revenue? Why?

*January 28, 2012*

**statistics**

250 out of 500 students is going to give you 0.5. After that you will need to multiply that number by 360. your equation will look something like this: 0.5 x 360 = 180 your welcome! :)

*January 28, 2012*

**physics**

A cat that has a mass of 6 kg climbs to the top of a tree that is 20 m high. How much potential energy does the cat have at the top of the tree?

*January 26, 2012*

**British literature**

the answer is NOT B. he's basically confessing to murdering his wife and destroying her happiness when she didn't follow his orders. knowing that, it rules out everything else but......

*January 24, 2012*

**physics**

a .300 kg baseball is thrown at a speed of 6.5m/s. the batter hits the ball and it flies into the outfield at a speed of 19.2 m/s. How much work is done into hitting the baseball

*January 22, 2012*

**geometry**

the coordinate of p are (-2,5) and the coordinates of q are (6,1). a.what is the slope of pq? b.what is the equation? c.what are the coordinates of the mp of pq? d. what is the eqquation of the perpendicular bisector of pq?

*January 19, 2012*