Monday

September 15, 2014

September 15, 2014

Total # Posts: 70,639

**Biology**

In a controlled experiment, a scientist is studying how long it takes pea plants growing in different soil types to develop flower buds. What is the manipulated independent variable? a) type of soil used b) number of flower buds produced c) how long it takes for flower buds to...
*August 27, 2014*

**Chemistry**

You want to know if the amount of protein in a female rat’s diet affects the average birth weight of her individual offspring. In a controlled experiment, what would be the dependent (responding) variable? a) amount of protein in the diet b) average birth weight of ...
*August 27, 2014*

**Chemistry**

Dr. Penny Dollar is a health psychologist interested in getting more people to wash their hands after using the restroom. She places a stack of attractive terry cloth towels in one men’s room and a roll of brown, thin paper sheets in another men’s room in the same ...
*August 27, 2014*

**Physics **

a boy and a girl carry a 12 kg bucket of water by holding the ends of the rope with the bucket attached in the middle. if there is a angle of 100 degrees between the two segments of the rope ; what is the tension of each part?
*August 27, 2014*

**Math**

21/25= .84 Move the decimal to the right twice.. 84%
*August 27, 2014*

**Economics**

It's an article.. webpronews(dot)com/deliotte-media-study-2012-01
*August 27, 2014*

**Economics**

"If cable TV were a factor of production, which factor of production would it be and why?"
*August 27, 2014*

**Economics**

"If cable TV were a factor of production, which factor of production would it be and why?"
*August 27, 2014*

**Economics**

Cable would be a capital
*August 27, 2014*

**Economics**

I meant capital, sorry. Which is why I asked about goods and services.
*August 27, 2014*

**Economics**

So then it'd be labor..
*August 27, 2014*

**Economics**

Is a good or service something that us as people get?
*August 27, 2014*

**Economics**

Sorry, let me rephrase my question... Cable would be entrepreneurship right?
*August 27, 2014*

**Economics**

So it would be entrepreneurship right? (Business)
*August 27, 2014*

**Economics**

What's a factor of production? Can you put it in simple words please?
*August 27, 2014*

**Economics**

What is an opportunity cost of cancellong cable?
*August 27, 2014*

**algebra**

It cost $200 to rent a room they charge $13 per person what is the algebraic expressing for total cost for n?
*August 27, 2014*

**Chemistry**

How do you cope with a fire on your labatory bench?
*August 27, 2014*

**nevermind**

GOT IT.
*August 27, 2014*

**Question**

How do mole rats communicate? Gestures Smell Touch Symbols Or sounds?
*August 27, 2014*

**economics**

what are the costs and consequences of providing the susidies and welfare
*August 27, 2014*

**PLUS ONE**

two bodies begin to fall freely from the same height the second t second after the first.how long the first body begin to fall,will the distance between the two bodies be equal L.
*August 27, 2014*

**Math**

A shooting game has 10 targets. The player has 10 arrows. In order to win the game, the player must shoot all 10 targets. What is the probability of shooting all 10 targets?
*August 27, 2014*

**Chemistry **

How much water must be added to 963 g of solid sodium hydroxide needed in order to prepare a 1.50 M solution?
*August 27, 2014*

**Math **

Is 2.2 miles too long of a distance to walk to school?
*August 27, 2014*

**physics**

the diameter of the moon is 3480 km. A.)what is the surface area of the moon? B.)how many times larger is the surface area of earth?
*August 27, 2014*

**math (4th grade)**

1/6 and 3/6=2/6 cross multiply 1/6 is yellow and 3/6 is purple. 1/6-3/6
*August 26, 2014*

**math (4th grade)**

1/6 and 3/6=2/6 cross multiply 1/6 is yellow and 3/6 is purple. 1/6-3/6
*August 26, 2014*

**math (4th grade)**

1/6 is yellow
*August 26, 2014*

**math (4th grade)**

june made a DESIGN with 6 equal tiles.One tile is yellow, 2 tiles are blue,and 3 tiles are purple.What fraction of the tiles are yellow or purple?
*August 26, 2014*

**Math**

In a class of 80 students, 40 bring their textbooks to class, 20 bring some sort of beverage to class, 60 bring calculators to class, while 5 students bring nothing to class. If 30 students bring both their textbooks and calculators to class, how many students bring only a ...
*August 26, 2014*

**Chemistry**

a cap cork stopper from a bottle of liquid is not put down on a desk while you are pouring out some of the liquid why?
*August 26, 2014*

**Chemistry**

What procedures should you follow to:: 1. report spilling a chemical or breaking equipment? 2. cope with a fire on your lavatory bench? 3. dispose of cracked or broken glassware?
*August 26, 2014*

**Chemistry**

Why should you use only clean glassware?
*August 26, 2014*

**Math**

In order to solve 5-4x+7+6x, you must first combine like terms. -4x + 6x = -2x Here's your next equation: 5+7-2x Next, you add 5 and 7 together. 5 + 7 = 12 Finally, after you do that, you get the last equation: 12-2x This is your final answer. Hope this helps you for ...
*August 26, 2014*

**Math help**

(6x^4-x^3+11x^2-2x-2)/(3x+1) i don't know to solve it
*August 26, 2014*

**math**

absolutely not, more MITX would be more like In an effort to purify the output from a catalytic chemical reaction, C-Cl bonds are to be broken in a gaseous compound by means of LASER radiation. Determine the longest wavelength of radiation still capable of breaking the C-Cl ...
*August 26, 2014*

**math**

3x(4x-3y)-2(4x-3y)
*August 26, 2014*

**math**

i dont remeber
*August 26, 2014*

**math**

Simplify (3y-5)(3y+5)
*August 26, 2014*

**math**

Without using mathematical table or calculator evaluate 0.18x12.5/0.05x0.2?
*August 26, 2014*

**english**

Which is mostly missing from “The Lady in the Looking Glass” because it is a stream-of-consciousness narrative
*August 26, 2014*

**compound interest**

At the beginning of every year, Molly deposits $200 in a savings account that offers an interest rate of 20%, compounded annually. The total amount that Molly will have in her account at the end of 3 years is
*August 26, 2014*

**physics**

What's the net force acting on an 18-kg object if an acceleration of 3.0 m/s2 is produced? A. 54 N B. 12 N C. 6 N D. 36 N
*August 26, 2014*

**History,geography,tourism,math lit,zulu.**

Do Jiskha have A sarturday schools near soweto
*August 26, 2014*

**Grammar**

Write in the correct verb tense. 18.Joseph's English (improve, really) , isn't it? He (watch) American television programs and (study) his grammar every day since he first arrived in San Diego. Soon he will be totally fluent. I am not sure what verb tense to use. 19. ...
*August 26, 2014*

**Grammar**

18.Joseph's English (improve, really) , isn't it? He (watch) American television programs and (study) his grammar every day since he first arrived in San Diego. Soon he will be totally fluent. 19. When I (arrive) ARRIVED home last night, I discovered that Jane (prepare...
*August 26, 2014*

**math**

(6x^4-x^3+11x^2-2x-2)/(3x+1)
*August 26, 2014*

**science**

Baby chickens require a constant source of food. As chickens grow, more energy is needed for daily activities. Number of days 0, 1,2,3,4,5,6,7 and food eaten (grams) 0.0, 1.5,3.5,6.5,9.0,12.5,16.5,21.0 What type of graph will you use?
*August 25, 2014*

**Math - Probability**

There is a shooting game that consists of 10 targets. The player must use a bow to hit all the targets in order to win a prize. What is the probability of hitting all 10 targets if the player has 15 arrows?
*August 25, 2014*

**Math**

A game has a box containing four marbles - three red and one green. The player draws one marble at a time without replacement until the green marble is drawn. After that, the game is over. The game ends in four different ways. What is the probability of drawing a green marble ...
*August 25, 2014*

**Math**

3y=4x-18 3x=7-y
*August 25, 2014*

**Algebra**

Solve for x 2x^2 - 8 = 100
*August 25, 2014*

**Which of the following is not a requirement of eth**

Which of the following is not a requirement of ethical systems
*August 25, 2014*

**Math**

Her dining room is 5 yards by 10 yards rectangle. How much carpeting does she need to cover her entire dining room
*August 25, 2014*

**Math**

isosceles trapezoid with a perimeter of 52 meters; one base is 10 meters greater than the other base; the measure of each leg is 3 less than twice the base of the shorter base
*August 25, 2014*

**statistics**

According to a survey, only 20% of customers who visited the web site of a major retail store made a purchase. Random samples of size 50 are selected.Tthe mean of all the sample proportions of customers who will make a purchase after visiting the web site is _
*August 25, 2014*

**biology**

anonyms
*August 25, 2014*

**math**

ATM personal identification number PIN codes typically consist of four-digit sequences of numbers. Find the probability that if you forget your PIN, you can guess correct sequence if you recall the two digits
*August 25, 2014*

**math**

A drawer contains 4 red socks and 4 blue socks. Find the least number of socks that must be drawn from the drawer to be assured of having a pair of red socks
*August 25, 2014*

**Math**

A sheet of paper is 8 1/2 in wide and 11 in long. The sheet is printed with a margin 1 1/4 in. wide on all four sides. Find the perimeter of the printed part of the page. I got 34; I subtracted 11 with 1 1/4 and 8 1/2 with 1 1/4. I got 9 3/4 and 7 1/4. I added those and got 17...
*August 24, 2014*

**Math**

A cabinet has shelves that are 12 1/2 in. apart. On one shelf, Katherine stacked a CD player that is 4 5/8 in/ high on top of an amplifier that is 6 3/4 in. high. How much space was left above the CD player? I got 1 1/4; I added 6 3/4 and 4 5/8 and got 11 2/8. Then I ...
*August 24, 2014*

**Math (quadratic function)**

*August 24, 2014*

**english**

Which sentence contains a restrictive relative clause?
*August 23, 2014*

**Math**

Thank you
*August 23, 2014*

**Math**

Solve: + n =
*August 23, 2014*

**math**

As of August 22, 2014 the ratio of wins to total games the Red Sox played is? First of all I need to know if I am right about how many games the red sox played. I am pretty sure that they played 161 games. Am I correct?
*August 23, 2014*

**Algebra**

First, you would find the LCD - least common denominator- of 5 and 6, which is basically a number that the both of them can go into. In this case, it is 30. Then you would mulitply 9/5 * 6/6 for 54/30 and 1/6 * 5/5 for 5/30. Now your new expression reads 54/30 - 5/30, which is...
*August 23, 2014*

**thermodynamics**

1. An ideal gas at 40psig and 80 degree F is heated in a closed container to 120 degree F. What is the final pressure, psia?
*August 23, 2014*

**One more equation**

4x/5 = 1.2 Please explain
*August 23, 2014*

**equations**

2.5x/2 = 3.5 -0.4x
*August 23, 2014*

**question**

two friends bob and ralph, ate at a restarunt together. bob paid for himself and ralph paid for himself. Bob spend 3 dollars more than ralph. the total bill was 52.24 dollars how much did bob pay?
*August 22, 2014*

**math mental math**

Shelley spent 17 minutes washing the dishes. she spent 38 minutes cleaning her room. explain how you can use mental math to find how long Shelley spent on the two tasks.
*August 22, 2014*

**physics**

A car of mass 1000 kg accelerates uniformly from rest to a velocity of 54 km/h in 5 seconds calculate 1) its acceleration 2) its gain in k.e 3) average power of the engine during this period . neglect friction
*August 22, 2014*

**physics**

A car of mass 1000 kg accelerates uniformly from rest to a velocity of 54 km/h in 5 seconds calculate 1) its acceleration 2) its gain in k.e 3) average power of the engine during this period . neglect friction
*August 22, 2014*

**geometry**

solution of the questions The sides of a quadrilateral ABCD are 6 cm, 8 cm, 12 cm and 14 cm (taken in order) respectively, and the angle between the first two sides is a right angle. Find its area.
*August 22, 2014*

**Algebra**

Solve for x. (x-1)/(x-3)=sqrt of 17-x
*August 22, 2014*

**Social Studies**

Thanks
*August 22, 2014*

**science & math**

for a ray of light incident normally on one face of the prism prace course of the ray measure the delta angle explain briefly do this for prism with angleA=60,45,90
*August 21, 2014*

**biology**

Explain how both nucleic acids and proteins are polymers.Be sure to describe the monomers that make up the polymers.
*August 21, 2014*

**Physics**

The vector -5.2A⃗ has a magnitude of 40m and points in the positive x direction. Find the x component of the vector A⃗ ? I do not understand how I am supposed to figure this out with just having the magnitude of the vector. Shouldn't there be an angle or ...
*August 21, 2014*

**complex fractions and unit rate**

2 2/5%
*August 21, 2014*

**Math**

Using only one cut, how would you divide 7 pieces of licorice among 5 people so that each person gets the exact same amount of licorice without bending the licorice
*August 21, 2014*

**Math**

Ernie wants to fence in a rectangular play yard for his two dogs. He has 12 pieces of fence that are one unit each. What are the dimensions of the largest play yard that Ernie could make? Show your work
*August 21, 2014*

**Math**

Need help plz?! Graph the ordered pairs (0, 4) and (1, -1) and connect to form a line. Which Quadrant contains no point for this linear function? I honestly need help here
*August 21, 2014*

**chemistry**

Hydrogen and chlorine react to yield hydrogen chloride: H2+ Cl2 ( 2HCl. How many grams of HCl are formed from reaction of 3.56 g of H2 with 8.94 g of Cl2? Which reactant is limiting?
*August 21, 2014*

**science**

If each resistor in a diagram is 95 Ù. What is the total current in the circuit if it is connected to a 120 V power supply?
*August 21, 2014*

**General Physical Science**

A fishtank with inside dimensions of 65 cm X 45 cm X 80 cm is filled with water. What is the volume in cm3 of water required? What is the mass in grams of the water required? What is the mass in kilograms?
*August 21, 2014*

**physical science**

A car travels in a northward direction for a total distance of 512 km. The car completes this trip in 6 hrs. After resting the driver makes the return trip, the return trip only takes 5.5 hours. What is the average speed of the car over the entire trip?
*August 21, 2014*

**science**

The time units used by scientists to divide Earth's history are part of the
*August 21, 2014*

**chemistry**

sulphur+iron filings
*August 21, 2014*

**math**

a dining table in the shape of a rectangle ABCD has sides of length (2X+12)and x cm and the length of the diagonal BD is (2x+18)find the value of x
*August 21, 2014*

**math**

change f(x)=(x-1)^2-4 to general form
*August 21, 2014*

**chemistry**

one of the following scientists never made any contribution to the development of periodic table? (a)j.jthompson (b)John Newlands (c) Luther Meyer ( d) mendeleev
*August 21, 2014*

**blah**

Question 5 Two point charges, each 6*10-5 C, are separated by 30 cm. What is the electrostatic force produced by this arrangement?
*August 21, 2014*

**chemistri**

calculate the molarity of a copper ii nitrate solution with a density of 1.48 g/ml and a percent mass by mass of 5.20 %
*August 20, 2014*

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