Thursday

August 21, 2014

August 21, 2014

Total # Posts: 69,766

**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*

**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*

**algebra**

What is the rule to the function with inputs of 0;1;3;4 and outputs of 4;3;1;0
*August 20, 2014*

**Math**

Maggie has a ribbon 27 feet long. What is the length of the ribbon in yards?
*August 20, 2014*

**math **

find x if (x,-2) is a solution to the equation 3x+2y=-7. my answer was x=1 but it was wrong.
*August 20, 2014*

**MATHH#2**

find the solution to system by the substitution method. y=2x+5 y=3x The answer is(5,15). Just don't know how the professor got that answer.
*August 20, 2014*

**MATHH**

find the slope,if any, of the line perpendicular to the line through the points (2,-7) and (3,4). i need to show my work!. i got 11 as my answer but i think its wrong.:(
*August 20, 2014*

**physics**

Two uniform planks, each of mass m = 4.41 kg and length L = 2.11 m, are connected by a hinge at the top and by a chain of negligible mass attached at their centers, as shown in the figure. The assembly will stand upright, in the shape of an A, on a frictionless surface without...
*August 20, 2014*

**math**

Suppose that the 6-month US Treasury bill rate is equal to 5% and the forward rate on a 6-month Treasury bill 6 months from now is 7.24%. (both in yearly terms). What is the rate of a 1-year bill?
*August 20, 2014*

**math**

A (yearly) cash flow stream is x=(-40,10,10,10,10,10,10). The spot rates are (yearly in percentage) s=(5.0,5.3,5.6,5.8,6.0,6.1). Use the discount factors to determine the (net) present value of the stream.
*August 20, 2014*

**Science **

A piece of magnesium ribbon weight 24g is burn in air an 40g magnesium oxide is formed. What mass of oxygen combined with the magnesium in this reaction
*August 20, 2014*

**physics**

2 seg.
*August 20, 2014*

**biology**

Is this correct? 2 examples of reproduction is a starfish and a rose bush....
*August 19, 2014*

**Quantitative reasoning**

The administration has formed a 26 person planning committee. There are 5 times as many administrators as there are students and five more faculty members than students. How many students are there on the committee?
*August 19, 2014*

**English**

Grammarly is a good site.
*August 19, 2014*

**health**

Smooth muscle contracts
*August 19, 2014*

**Language Arts**

I believe that C is the correct answer. P.S. I read this story not to long ago.
*August 19, 2014*

**math**

Find the mean of these grades:71, 72, 87, 96, 82, 76.
*August 19, 2014*

**math**

Find the mean of these grades:71, 72, 87, 96, 82, 76.
*August 19, 2014*

**math**

A (yearly) cash flow stream is x=(-40,10,10,10,10,10,10). The spot rates are (yearly in percentage) s=(5.0,5.3,5.6,5.8,6.0,6.1). Use the discount factors to determine the (net) present value of the stream. (I got a little confused here. Should I 1. use the running present ...
*August 19, 2014*

**math**

Starting from today, every month you save $500 into a bank account with earns interest at an annual rate of 4%. How much money do you have in the account at the end of 4 years? My working is F=R(((1+i)^n)-1)-i where R=500, i=1/300 and n=48. Ans=$25,979.80 Am I solving it ...
*August 19, 2014*

**Chemistry**

A student measures k for a certain blue due to be 19.4 m^-1 at 560 nm. What is the molarity of the dye in a solution with an absorbance of .118 at this wavelength ?
*August 19, 2014*

**algebra**

evaluate the expressions using the following values (-1^2+11^2)(11^2- -7^2)
*August 19, 2014*

**Math**

Why is life like a shower
*August 19, 2014*

**early childhood**

Introducing organized sports among young children is not recommended because? A. they lack the necessary physical needed B. they should be making up their own rules C. they lack the social interaction skills needed D. this excludes the teacher or caregiver from a role in play
*August 18, 2014*

**ECE**

to what means to recognize how many objects are in a small group without having to count each object ?
*August 18, 2014*

**math**

the distance between DELHI TO Meerut is 75km two trains speed of 100km/h & 80 km/h leave the two station at 8am towards each other at what time will they pass each other
*August 18, 2014*

**The Atmosphere and the Oceans **

Which area in the United States has the highest average number of thunderstorms per year?
*August 18, 2014*

**chemistry**

what is the molar concentration of a solution containing 15,0 g of pottasium chloride in 1,30 dm3 of solution
*August 18, 2014*

**math**

Starting from today, every month you save $500 into a bank account with earns interest at an annual rate of 4%. How much money do you have in the account at the end of 4 years?
*August 18, 2014*

**statistics**

The number of hours that college students sleep on a week night is approximated by a normal curve with a mean of 7 hours and a standard deviation of 1.7 hours. Answer the question below using a z table: On a week night, what percentage of students sleep between 5 and 10 hours
*August 18, 2014*

**geometry**

angles versus length & height
*August 18, 2014*

**Please Help ! Analytic Geometry**

Duck u
*August 18, 2014*

**Math**

a person sol 100 shares of stock at a profit of 15%. if the selling price for the 100 shares was 2300. what was paid for the stock?
*August 17, 2014*

**Math**

A person stock worth 2300 at 100 shares and they had a 15 % profit how much was the stock
*August 17, 2014*

**cda**

A criticism of the information -process approach is that it
*August 17, 2014*

**math**

The leng of the smaller rectangle is 1 inch less than twice its wide. both the dimensions of the larger rectangle are 2 inches longer than the smaller rectangle. the area of the shaded region is 86 square inches. what is the area of the smaller rectangle?
*August 17, 2014*

**Math**

This is not my answer but Ms. Sue you do need to provide me the Answer
*August 17, 2014*

**Math**

I also don't know but u just assume that Fluffaluff is a bamboo tree
*August 17, 2014*

**Math**

Assign variables for the following problem (you do not need to solve the problem) Thirty fluffaluff trees are introduced on an island at the start of year zero. At the start of thirty there are 55 fluffaluff trees. Use the fluffaluff formula to find how many fluffaluff trees ...
*August 17, 2014*

**math**

The length of a rectangle of perimeter 64 cm is 5/3 of its breadth . Find the area of rectangle ?
*August 17, 2014*

**physics **

Plot a speed-time graph of a car A traveling at a uniform speed of 80km/hr on the same graph plot the speed-time graph of 2nd car B starting from rest and uniformly accelarating through a maximum speed of 80km/hr a) what relations do you find between the distance covered by ...
*August 17, 2014*

**chemistry**

calculate the concentration of ammonium nitrate solution.
*August 17, 2014*

**statistics**

In performing a hypothesis test, the null hypothesis is population mean = 6.9 and the alternative hypothesis is population mean ≠ 6.9, a random sample of 16 items is selected. The sample mean is 7.1 and the sample standard deviation is 2.0. The population is ...
*August 17, 2014*

**chemistry**

if the wavelength of the first line in the balmer series in a hydrogen spectrum is 6863A .calculate the wavelength of the line in the lyman series in the same spectrum
*August 17, 2014*

**chemistry**

an endothermic reaction a to b has an activation energy of 15 kcal per mol and heat of reaction 5 kcal per mol the activation energy for the reaction b to a will be ?
*August 17, 2014*

**math**

Place parentheses in the following equation to make it true. 6 + 6 ÷ 6 x 6 - 6 = 0
*August 16, 2014*

**log 101**

An 80% learning curve has been observed for the production of the MEERKAT system. If the 5th production unit''s recurring cost is $1 million, what will be the recurring cost for the 10th production unit? Assume that the production line is continuous and that the ...
*August 15, 2014*

**Practice **

A sentence using as many long vowel sound words as possible
*August 14, 2014*

**math**

Shawnee is putting $3,500 into an account earning 4.85% interest compounded quarterly. She estimates that it will take just over 11 years for this investment to grow to $6,000. Which of the following is a true statement?
*August 14, 2014*

**Science**

photosynthesis= carbon dioxide + water + light energy → glucose + oxygen + water (the arrow means that things before it react to yield the products after) Oxygen is one of the products.
*August 14, 2014*

**Economics**

. When concert tickets are priced below equilibrium, who gets them? Is this distribution of tickets fairer than a pure market distribution? Is it more efficient? Who gains or loses if all the tickets are resold (scalped) at the market-clearing price?
*August 14, 2014*

**Economics**

please give me a answer
*August 13, 2014*

**Algebra 2**

x-3/2x*6x^2/5
*August 13, 2014*

**Math**

What is the scale factor as a percent that will result if the rule is applied to a point (x,y) on a coordinate grid? 1. (1.5x,1.5y) is it, 150% 15% 1.5% or none of these? 2. (0.7x,0.7y)is it 700% 7% 0.7% or none of these?
*August 13, 2014*

**Biology: Genetics**

18.Which of these is trueof meiosis? A. n → 2n B. n → n C. 2n → n D. 2n → 2n Is it C.?
*August 13, 2014*

**Biology: Genetics**

18.Which of these is true of meiosis? A. n → 2n B. n → n C. 2n → n D. 2n → 2n Is C. the right aswer?
*August 13, 2014*

**english 3**

thank you Ms. Sue
*August 13, 2014*

**english 3**

In Moby-Dick, what does the gold coin symbolize for the crew? A. Ahab's fortune from his business B. their reward for finding the whale C. the Pequod's profits from whaling D. Ahab's wish to seem better than them
*August 13, 2014*

**english 3**

In the following stanza from “I heard a Fly buzz—when I died—,” which words form a slant rhyme? The Eyes around—had wrung them dry— / And Breaths were gathering firm / For that last Onset—when the King / Be witnessed—in the Room —
*August 13, 2014*

**statistics**

hghgh
*August 13, 2014*

**statistics**

A research organization claims that the monthly wages of industrial workers in district X exceeds that of those in district Y by more than Rs 150. Two different samples drawn independently from the two district yielded the following results: District X: 1 x = 648, 2 1 s = 120...
*August 13, 2014*

**Math**

-2/5+(-1/10)
*August 12, 2014*

**algebra**

julia is studying the sum of interior angles in polygons. she creates polygons with 3,5,6,7 and 9 sides, and records the sum of the interior angles in each polygon in the table. Write an equation or inequality that represents the situation.
*August 12, 2014*

**accounting**

The charter of the corporation authorized 500,000 shares of $5 par common stock, and 50,000 shares of $40 par, 3%, preferred stock. As of January 1, 2014, there were 20,000 shares of common stock issued and outstanding and 4,000 shares of preferred stock issued and outstanding...
*August 12, 2014*

**High School Physics**

A car is moving at 20.0 m/s [N] when it begins to constantly accelerate to a final velocity of 10.0 m/s [E]. The magnitude of its displacement during this time is 1.50 x 10^2 m. How long did the acceleration last? I know that the answer is 13.4 s, but can you show me how you ...
*August 12, 2014*

**business**

Write a 700- to 1,050-word paper in which you practice identifying the critical first stage of developing any research study: •State the purpose of the business research for each article. •Determine the research questions and hypotheses being researched in each ...
*August 12, 2014*

**Algebra **

If EG = 59 what are EF and FG? E to F is 8x-14 and F to G is 4x+1 X=______ EF=_______ FG=_______
*August 12, 2014*

**chemistry**

9. The reaction of 50 mL of N2 gas with 150 mL H2 gas to form ammonia via the equation: N 2(g) + 3H2 (g) → 2NH3 (g) will produce a total of mL of ammonia if pressure and temperature are kept constant
*August 12, 2014*

**Grammar**

You mustn't allow your frustration to interfere with your motivation," advised the Admission Counselor. 'Tech support is available to help", she then explained. Is that punctuated correctly
*August 12, 2014*

**physics**

according to the statement given what is the magnitude of the velocity of the rock just before it strikes the ground
*August 12, 2014*

**Math**

let f: ℤ→ ℤ and g: ℤ → ℤ be functions defined by f(x) = 3x + 1 and g(x) = |_x/2_|. (a) Is f o g one-to-one? prove (b) is f o g unto? prove (c) Is g o f one-to-one? (d) Is g o f unto? Thank you for your help.
*August 12, 2014*

**6th grade math**

Mark has $4.40 nickels and dimes.he has thirteen more nickels than dimes. How many of each does he have?
*August 12, 2014*

**mathhhhhhh!**

Find the solution to the system by the substitution methond. y=4x-4 y=5x a.(1,0) b.(-4,-20) c.(4,0) d.(-3,-15) (Im confused !!!please explain to me how get the answer)!
*August 11, 2014*

**math**

Shane takes a big cube of butter with sides of length 5 from the refrigerator. He then cuts out a little cube with sides of length 2 from one of the corners of the cube. Write a numerical expression with exponents that describes the volume of butter left.
*August 11, 2014*

**polynomials and polynomial functions**

Solve the equation 3z3 − 300z = 0.
*August 11, 2014*

**statistics**

150 students is 60 kg the mean of body is 70 kg withstandard deviation of 10 kg and mean weight of girls is 55 kg with standard deviation of 15kg.calculate the number of boys and the combined standard deviation. Also find whether the coefficient of deviation is hired for girls...
*August 11, 2014*

**math**

calculate the value of (1 sec20¡ã cot20¡ã)(1-cosec20¡ã tan70¡ã)
*August 11, 2014*

**mathematics**

In a two digit number,the tens digit is 3 more than the inits(ones) digit.if the unit digit is 2,find the number
*August 11, 2014*

**maths**

the school cefeteria serves pizza every sixth day and applesauce every eight day. if pizza and applesauce are both on today's menu, how many days will it be before they are both on the menu again"
*August 11, 2014*

**math**

Transcriptionist B is a full-time employee earning $10.00 per hour and an annual salary of $20,800. He transcribes 900 lines per day for a total of 234,000 lines per year. What is the unit medical transcription labor cost for transcriptionist B? Round to the first decimal ...
*August 10, 2014*

**Physics**

While sitting on a tree branch 11m above the ground, you drop a chestnut. When the chestnut has fallen 2.7m , you throw a second chestnut straight down. What initial speed must you give the second chestnut if they are both to reach the ground at the same time? I know I am ...
*August 10, 2014*

**math**

Thanks a lot Ms.Sue! You are great! :)
*August 10, 2014*

**math**

In one year what percent of your time is spent in school? Year=365 days School year=180 days I know that the answer is a little bit over 50%, but I am not too sure about the exact answer.
*August 10, 2014*

**Math**

A line passes through the points (-10,-4) and (-1,2). What is the slope of the line that passes through the two points?
*August 10, 2014*

**Math**

expression that is equivalent to -6(x - 3).
*August 10, 2014*

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