Saturday
August 30, 2014

Posts by Melissa


Total # Posts: 1,113

english
1. An analogy helps clarify a complex idea by: A. presenting several definitions of the idea. B. comparing the idea with a simpler one C. breaking down the idea into smaller pieces D. pointing our a single common trait between two topics. I think it's B? 2. Which of the ...
April 19, 2011

English
thank u
April 19, 2011

English
Your conclusions are faulty in a cause-and-effect essay if: A. you include secondary effects B. you include only short-term effects C. you distinguish between long-term effects and short-term effects D. you include primary effects I believe it's B?
April 19, 2011

geometry
A polygon has d diagonals. If the polygon had one more side, it would d + 10 diagonals. How many sides does the polygon have?
April 13, 2011

Math
How much surface area would 1 fluid oz. of gold cover? Thickness .0002 (two Tenths)
April 12, 2011

Spanish 8th grade-Please check answer
Thank you
April 12, 2011

Spanish 8th grade-Please check answer
Is this correct the way I answered this-I don't like onion cake so I'm telling them Sorry,but I don't like it. ¿Quieres comer pastel de cebollas conmigo? Lo siento pero no, no me gusta pastel de cebollas. Thank you
April 12, 2011

Spanish 8-Please check
Thank you
April 11, 2011

Spanish 8-Please check
1.Which one is correct? Tocamos el piano. Jugamos el piano. Tocamos al piano. I think it is the Tocamos el piano because if it was jugamos then it would have to have "al" in front of piano. Piano is masculine so it couldn't be Tocamos al piano. 2. Which is ...
April 11, 2011

Spanish -8th grade- Please check
Which of the following is correct? Mis hermanos tocan a la guitarra. Mis hermanos tocan la guitarra. Mis hermanos juegan la guitarra. I think it is "Mis hermanos tocan la guitarra."
April 11, 2011

Physics-Please check
We're just learning this and I think I mixed up G=6.673E-11 from another problem and what my brother was telling me to simply do mass of electron * 9.8N/kg. I was accidentally combining two differnet things and not doing it correctly sorry for not understanding it right ...
April 10, 2011

Physics-Please check
I'm trying to find the gravitational force of an electron at earth's surface. I know I say Fg = mass electron * gravity Gravity in this case is 6.673*10-11 m^2/kg^2 correct, not 8.93 * 10^-30N that we used for force of acceleration, right. I use the universal constant ...
April 10, 2011

Statistics
What score in a distribution that has a mean of 500 and a standard deviation of 100, would identify the top 60% of scores?
April 9, 2011

math
If there are only two cards left it would be a 50% chance of picking the Queen of Hearts.....
April 8, 2011

calculus
f(x)= x^3/(2x-5)^4
April 6, 2011

calculus
find the derivatives F(x)=8ln(x^5-2x)
April 6, 2011

math
The table shows the amount of marbles brandon has in each bag. Brandon's Marbles bag) 1,2,3,4,5,6 marbles)12,11,12,20,21,20. What is the range?
April 3, 2011

Physics
A square steel plate is 9.00 cm on a side and 0.600 cm thick. Assume that the plate is oriented with the square faces horizontal to the ground. A. Find the shear strain that results if a force of magnitude 1.00×106 N is applied to the top square face of the plate, ...
March 31, 2011

grade 7 math
how can you figure out the length of a shadow if you walk closer to a lamppost?
March 30, 2011

Interest Rates
Homer won a prize in the lottery of $1000, payable $500 immediately and $500 plus 4% simple interest payable in 250 days. Getting impatient, Homer sells the promissory note to Moe for $450 cash after 130 days. Using a nominal 360 day year, find the simple interest rate, ...
March 28, 2011

calculus
find the derivative of F(x)=x^2-4/1+lnx
March 28, 2011

calculus
find the derivative of s(t)=(1+e^t)ln t
March 28, 2011

Math(Probability)
**Describe the outcome space** (a)If a Families that have three children each and select one such family at random. Describe the sample space S in terms of their children as 3-tuple, agreeing for example that "gbb" would indicate that the youngest is a girl and two ...
March 16, 2011

Chemistry
A 30 mL sample of 0.150 M KOH is titrated with 0.125 M HClO4 solution. Calculate the pH after the following volumes of acid have been added: 30 mL, 35 mL, 36 mL, 37 mL, and 40 mL.
March 8, 2011

Chemistry
A 30 mL sample of 0.150 M KOH is titrated with 0.125 M HClO4 solution. Calculate the pH after the following volumes of acid have been added: 30 mL, 35 mL, 36 mL, 37 mL, and 40 mL.
March 8, 2011

math
In math class, students must randomly draw a card that contains an equation that they must graph on the board. If the cards contain the equations 2y = 4x + 2, x(x + 1) = 0, 2x + y = 0, x = 2y , x2 + 1 = 0, and y - 2x = 0, then what is the probability that a student will graph ...
March 8, 2011

Math
What is the shape of the schoolyard if four sides measure 40feet each and the fifth side measures 50 feet?
March 6, 2011

Math- Linear Programming
A dog food is to be mixed from three kinds of ingredients: rolled oats, beef parts, and whey. The cost of each is 20 cents, 40 cents, and 35 cents per lb. Each ingredient contains 50, 450, and 200 units of protein and 350, 65, and 100 units of carbohydrate respectively. The ...
March 6, 2011

calculus
a company maufacturing surfboards has fixed costs of $300 per day and total costs of $5100 per day for a daily output of 20 boards. Assume the total cost per day C(x) is linearly related to the total output per day x. write an equation for the cost function, and write an ...
March 3, 2011

calculus
solve x^6<16x^4
March 3, 2011

math
how do u figure that out
March 2, 2011

math
thanks k so what about this... thirty percent of what number is 120?
March 2, 2011

math
so if u had 4% of 56 it would be o.o4 *56=the answer
March 2, 2011

math
thanks so u move the decimal two to the left on the first #
March 2, 2011

math
how do u figure out what 18% of 34 is?
March 2, 2011

math
Perform the indicated operation and, if possible simplify. 7/12+(-3/5)
March 1, 2011

Physics
The force on an object is described as a function of time equation: F(t) = 3t^2+7t What is the impulse delievered by the force over a period of time from 0 to 5.0s? What is the average force exerted on an object over this time period? If the object has a mass of 2.0kg and is ...
March 1, 2011

English
I am trying to analyze Wendi Kaufman's "Helen on Eighty-Sixth Street." I do not understand what Vita's mother means when she says "Truth is beauty and beauty is truth..." Please explain the meaning of this quote.
February 27, 2011

social studies
were the british justified using that amount of force against the french in 1837? use examples from 2011 to help explain your awnser
February 27, 2011

Math
Consider a polygon ABCDE with coordinates A(0,4), B(3,0), C(7,2) , D(11,6) and E(8,15) Choose all possible pairs from below at which a maximum over the region can be attained by a non constant linear function. [(0,4),(7,2)] [(0,4),(8,15)] [(7,2),(11,6)] [(11,6),(8,15)] [(0,4...
February 26, 2011

12th grade English
do the bib and note cards for elizabeth barret browning and robert browning
February 24, 2011

physics
A 214 kg boat is sinking in the ocean. The boat's weight is partially offset by the 790 N buoyant force of the water. What is the net acceleration of the boat?
February 24, 2011

mangement science the art of modeling w/ spreadshe
Five years ago, an automobile manufacturer started offering an extended warranty to buyers of its sport-utility vehicle.  The extended warranty covered defects occurring after the initial three-year warranty expired.  Of the 10,...
February 20, 2011

business
discuss the ways in which a business might respond to growing awarness of environmental issues among its customers?
February 19, 2011

introduction to business
retailing has undergone a major change in technology in the past few years with the introduction of internet trading. many customers now order their goods online. discuss the benifits and drawbacks for retailers in this growing line of business?
February 19, 2011

spanish
do any of these words have accents? (if so please identify them): - abrigo - rapido - sabado - vez - menu - operacion - impermeable - ademas - regatear - antipatico - farmacia - esqui - pension - pais - perdon
February 17, 2011

math
using only whole numbers, how to can i draw 3 rectangles with perimeter of 12 units
February 16, 2011

chemistry
a sample of gas has a volume of 12liters at 0 degrees celcius and 380 torr. what will be its volume whent the pressure is changed to 760 torr at a constant temperature?
February 10, 2011

Chemistry
do I use the Ksp of MfF2 and plug it in the equation?
February 8, 2011

Chemistry
Calculate the molar solubility of MgF2 in 0.08M MgCl2 at 25 degrees C.
February 8, 2011

Chemistry
I'm not to sure what you mean by "the same"
February 8, 2011

Chemistry
If a saturated solution prepared by dissolving solid BaSO4 in water has [Ba2+]= 1.04*10^5M, what is the value of Ksp for BaSO4?
February 8, 2011

Biochemistry
Complete hydrolysis of 25 mM ethyl acetate in an enzyme esterase catalyzed reaction is carried out in a 40 mM NaCl solution buffered by 0.2 M Tris-Cl, pH 9.1. What is the pH at the end of the reaction? (For Tris base, which is the abbreviation for Tris (hydroxymethyl) ...
February 7, 2011

math
Angle U and Angle V are complementary angles. If Angle U is three less than twice Angle V, what are the measures of the angles?
February 6, 2011

Math-Equations
I haven't posted this before. I've been working on this for 2 days and I didn't search the website for this problem again today. Someone else must have posted it. I just couldn't figure out the equations. Thanks anyway.
February 6, 2011

Math-Equations
A building contractor is planning to build an apartment complex with one, two or three bedroom apartments. Let x,y,z respectively denote the number of apartments of each type to be built. Suppose that the builder will spend a total of $6,885,000, and that the costs for the ...
February 6, 2011

Chemistry
A 119.2mL sample of 0.105M methylamine (CH3NH2, Kb=3.7*10^-4) is titrated with 0.255M HNO3. Calculate the after the addition of each of the following volumes of acid. 49.1mL and 73.6mL. Please help.
February 6, 2011

Chemistry
A 23.0mL sample of a diprotic acid is titrated with 0.260M KOH. If 55.5mL of base is required to reach the second equivalence point, what is the concentration of the acid? I'm not sure how to do this.
February 6, 2011

Algebra
The area of the top of a triangular corner desk must be at least 7 sq. ft. If the base of the triangular desk top needs to be four feet, what should the height be?
February 6, 2011

new age math
Please someone help
February 6, 2011

new age math
A value of the number k for which there is either no solution or an infinite number of solutions for (y,v) to the system of equations show below 7y-9v=-9 Ky+7v=7
February 6, 2011

geometry
if 32 degrees is less than three times its supplement, how large is the angle?
February 5, 2011

AP Chem
I figured out the first part but don't understand the second part still. I looked at the response you had for someone else, but still couldn't get the right answer.
February 2, 2011

AP Chem
The formula for epson salts is MgSO4*7H2O. If 1.250 g of the compound is dissolved in water, calculate the number of milliliters of 0.200 M Ba(NO3)2 that would be required to precipitate all of the sulfate ions as barium sulfate. Make the same determination for 1.000 g of alum...
February 2, 2011

English
How can I rewrite this sentence: A boy and his bog sat by a house?
February 2, 2011

math
joseph is planning a 2500 mile cross-country trip in his new sports utility vehicle. he uses the following information about his vehicle to figure out how much money to budget for gas: . the vehicle has a 15 gallon tank . the vehicle gets 25 miles per gallon if the gasoline ...
January 31, 2011

math
sandra is making 3 gallons of lemonade reception.If each scoop of powdered lemonade mix dissolves in enough water to make 3 quarts of punch,how many scoops of powdered mix will she use? ( hint: 4 quarts = 1 gallon
January 31, 2011

Supply/Math
The suppliers will supply 3,300 units if the price is $350.00 and 3,800 units if the price becomes $410.00. Then the linear supply equation is p = ? s + ? .
January 30, 2011

math
The question says .. match the equivalent addition and subtraction expressions a) -6 -9 b)-10 - (-12) c)6-9 d)10-12 e)-12-10 A)10+(-12) B)-6+(-9) C)-12 + (-10) D)6+(-9) E)-10+12
January 26, 2011

math
The question says .. match the equivalent addition and subtraction expressions a) -6 -9 b)-10 - (-12) c)6-9 d)10-12 e)-12-10 A)10+(-12) B)-6+(-9) C)-12 + (-10) D)6+(-9) E)-10+12
January 26, 2011

Place Value
Choose between the numbers 0, 2, 3, 4, 5, and 6 to make the largest four digit natural number in terms of value that you can. The number 078 has two digits. The number 00045 has two digits. Choose between the same numbers to make the smallest four digit number in terms of ...
January 19, 2011

physics
Find a vector with a magnitude of 1.00 that bisects the angle between the vectors 5.00i + 11.0j and 2.00i − 1.00j. Give your answer in rectangular coordinates. Please explain how you arrived at the solution. Thanks!
January 19, 2011

Algebra
Using the following six digits, 1, 2, 4, 6, 8, and 9, fill in the blanks below to make the maximum product that you can. Use each digit only once. How does an understanding of place value help determine the best solution to this problem?
January 17, 2011

economics
what are the non-monetary benefits of growing tobacco, of working as a plumber's assistant, and of working as a carpenter during the spring and summer and storing travel trailers for a local campground and selling oysters during the fall and winter?
January 17, 2011

Principles of Macroeconomics
What are the non-monetary benefits of growing tobacco, of working as a plumbers assistant, and of working as a carpenter during the spring and summer and storing travel trailers for a local campground and selling oysters during the fall and winter?
January 17, 2011

physics
How many uniform, identical textbooks of width 25.0 cm can be stacked on top of each other on a level surface without the stack falling over if each successive book is displaced 3.00 cm in width relative to the book below it? If the books are 5.00 cm thick, what will be the ...
January 16, 2011

statistics
For a population that has a standard deviation of 10, figure the standard deviation of the distribution of means for samples of size 3
January 10, 2011

Math: Algebra 2
Factor Completely with respect to the intergers. 2x^3-3x^2+4x-6
January 9, 2011

physics
Two masses are suspended from a pulley as shown in the figure below (the Atwood machine). The pulley itself has a mass of 0.20 kg, a radius of 0.15 m, and a constant torque of 0.35 m·N due to the friction between the rotating pulley and its axle. What is the magnitude ...
January 9, 2011

physics
well i dont really know how to explain the first part sorry.. but a negative acceleration for a car means the car is stopping.
January 9, 2011

social studies
thanks for all the help!!!(:
January 8, 2011

social studies
no i am not
January 8, 2011

social studies
how do you learn how to cook or do a job in medieval times? how do u get the job to be a cook in medieval times?
January 8, 2011

social studies
how many outfits did cooks have in the medieval times
January 8, 2011

social studies
but how do people treat the cook in medieval times
January 8, 2011

social studies
how do people treat cooks in medieval times
January 8, 2011

social studies
how often do cooks in medieval times speak to the lord?
January 8, 2011

social studies
can cooks in medieval times get married and if so who to?
January 8, 2011

social studies
what would the materials be as a cook in medieval times?
January 8, 2011

social studies
in medieval times as a cook where on the manor estate is your shelter
January 8, 2011

social studies
how do cooks get a job in medieval times?
January 8, 2011

social studies
who would cooks in medieval times work for?
January 8, 2011

social studies
where did people work if they were a cook in medieval times
January 8, 2011

math
a.u.s nickel contains 3.9g of copper and 1.2g of nickel. how many kilograms of copper must be combined with 500 kg of nickel to make nickel coins?
January 8, 2011

Grammar
omg thank u soooooooooooo much
January 6, 2011

physics
A rope goes over a circular pulley with a radius of 6.3 cm. If the pulley makes four revolutions without the rope slipping, what length of rope passes over the pulley?
January 5, 2011

Economics
explain why the cost tructure associated with many kinds of information goods and services might imply a market supplied by a small number of large firms. At the same time, some internet businesses such as grocery home deliveries have continually suffered steeplosses ...
January 2, 2011

Math
Mark each of the following True or False. ___ a. All vectors in an orthogonal basis have length 1. ___ b. A square matrix is orthogonal if its column vectors are orthogonal. ___ c. If A^T is orthogonal, then A is orthogonal. ___ d. If A is an n*n symmetric orthogonal matrix ...
January 2, 2011

Spanish
Thank you-I understand it now more clearly
December 21, 2010

Spanish
How do I say I'm wearing black pants? "Llevo pantalones negro." or do I have to add an "s" to negro? Thank you
December 21, 2010

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