Saturday
July 2, 2016

Posts by Melanie

Total # Posts: 267

Algebra
evaluate the function f(r)= sqrt25-r-6 at the given values of independent variables f(16), f(-x), f(25-2x) and simplify
March 17, 2012

Algebra
evaluate the function f(r)= sqrt25-r-6 at the given values of independent variables f(16), f(-x), f(25-2x) and simplify
March 16, 2012

HSPA REVIEW
-Clue 1: I am a Real Number whose value is less than 1 -Clue 2: I do not end -Clue 3: My digits do not repeat. what kind of number am i?
March 5, 2012

7th grade science
five facts about the stoges of photosynthesis
February 27, 2012

geometry
an electronic manufacturer wants to ship a stereo system. The system includes the following components: 1 Receiver 20in. x 8in. 1 CD Player 20in. x 8in. x 5in. 1 Dual Tape Deck 20in. x 8in. x 6in. 2 Half-Cylinder Speakers, each with a height of 22 in. and a radius of 4 in. To ...
February 8, 2012

chemistry
If you burn 38.9 g of hydrogen and produce 348 g of water, how much oxygen is reacted?
February 6, 2012

chemistry
If you burn 38.9 g of hydrogen and produce 348 g of water, how much oxygen is reacted?
February 6, 2012

geometry
Did you get 200 for this particular problem? cause that's what I got, which doesn't make sense to me because it's suppose to be less than 120 since it's the smaller polygon
February 4, 2012

geometry
How do you find the perimeter of a second polygon given just the scale factor of both polygons and the perimeter of the larger polygon? The problem is Two similar polygons have a scale factor of 3:5. The perimeter of the large polygon is 120 feet. Find the perimeter of the ...
February 4, 2012

math
Cheryl is training for a long bicycle ride. Jim will drive Cheryl back and her bicycle 60 miles from town, drop them off, and then drive back to town. Cheryl then will ride her bicycle back to town. On the way back to town, Jim will travel at 50 miles per hour and Cheryl will ...
February 1, 2012

math
daniel collects $87.00 by selling paperback books for $0.50 each and hardcover for $4.00 each. let p be the number of paperback books he sells and h be the number of hardcover books he sells write an equation to represent this situation.
February 1, 2012

math
58 - 16= 42 42/6 = 7
February 1, 2012

math
jamie is saving money to buy a cd player that will cost $58, including tax. she has already saved $16. she can earn $6 per hour doing yard work. how many hours will jamie need to work to earn enough money to buy the cd player?
February 1, 2012

Business
#14 is B WTO #16 is A Perfect Competition
January 24, 2012

math
let fbe a function that is even and continuous on the closed interval [0,3]. the function f and itsderivatives have the properties indicated in the table below. sketch the graph. x 0 0<x<1 1 1<x<2 2 2<x<3 f(x) 1 (+) 0 (-) -1 (-) f’(x) DNE (-) 0 (-) DNE...
January 22, 2012

math
(x^3+7x+12)/(x-4) find: x intercepts vertical asymptotes horizontal/slant asymptotes derivative second derivative increasing interval decreasing interval concave up interval concave down interval
January 22, 2012

math
f(x)=x/(x^2+x-2) find: x intercepts vertical asymptotes horizontal/slant asymptotes derivative second derivative increasing interval decreasing interval concave up interval concave down interval
January 22, 2012

math
f(x)=x^3+6x^2+9x find: x intercepts vertical asymptotes horizontal/slant asymptotes derivative second derivative increasing interval decreasing interval concave up interval concave down interval
January 22, 2012

Anatomy and Physiology
Discussion Topic: Chemistry of Life, Cells, and Tissues Select an organ and provide an example of how it uses the following: carbohydrates, lipids, proteins, and nucleic acids. Also, describe an area of interest related to one of the types of molecules, for example, ...
January 14, 2012

Anatomy and Physiology
Discussion Topic: Chemistry of Life, Cells, and Tissues Select an organ and provide an example of how it uses the following: carbohydrates, lipids, proteins, and nucleic acids. Also, describe an area of interest related to one of the types of molecules, for example, ...
January 14, 2012

physics
A string under a tension of 43 N is used to whirl a rock in a horizontal circle of radius 3.3 m at a speed of 26.46 m/s. The string is pulled in, and the speed of the rock increases. When the string is 0.635 m long and the speed of the rock is 80.5 m/s, the string breaks. What...
December 19, 2011

A=LxW
Length of a rectangle is 13 cm less than 5 times it's width. Its area is 28 square cm. Find dimensions of rectangle
December 6, 2011

Geometry
how do you find the orthocenter of a triangle with the vertices A(4,0) B(-2,4) C(0,6)? Please explain to me how you get x after doing point slope form for the two slopes.
December 4, 2011

chemisty
give the conjugate base for HNO2
November 29, 2011

geometry
never mind...i understand
November 19, 2011

geometry
Hey Steve, Thanks....but how could it be -4?
November 19, 2011

geometry
what is the orthocenter of triangle with the vertices of X(-11,0), Y(-11,-8), Z(-1,-4)?
November 19, 2011

Reading
i think it is line 14
November 14, 2011

Chemistry
Thanks page
November 9, 2011

Psychology
How do the ideas of positive psychology differ from the traditional model of illness?
October 18, 2011

Arrays and Expanded Algorithm
82
September 22, 2011

science
The physical properties of carbon vary widely with the allotropic form.
September 19, 2011

Uni Math
Simplify and state the domain: x'2 +1 . x'2 - 9 x'2 + 2x – 3 x'2 – 2x -3
September 15, 2011

Geometry. Please help.
1. The complement of an angle is 10 degrees less than the angle itself. Find the angle and it's complement. Find the perimeter and area of the following figures with the vertices given: a) A (3, 5) B (3, 1) C (0, 1) b) Q (-3, 2) R (1, 2) S (1, -4) T (-3,-4) c) G (-4, 1) H...
September 14, 2011

Geometry. Please help.
Thank you!!!(= I get it now
August 30, 2011

Geometry. Please help.
1) Two angles are complementary. The measure of one angle is 21 more than twice the measure of the other angle. Find the measure of the angles. 2) If a supplement of an angle has a measure 78 less than the measure of the angle, what are the measures of the angles? Please don&#...
August 30, 2011

physical science
what is the freezing point depression when 153g of bromine is added to 1000g of benzene?
August 18, 2011

physical science
what is the freezing point depression when 153g of bromine is added to 1000g of benzene?
August 18, 2011

physical science
what is the freezing point depression when 153g of bromide is added to 1000g of benzene?
August 18, 2011

Pen Foster
checking my answers in Introduction to Allied Health anyone have that one?
August 12, 2011

algebra
So the answer would be to be able to pay 89.09 more a month.
August 9, 2011

Algebra
Evaluate log36(1/6) I believe the answer is -.5 but I just wanted to check to make sure I was doing this correctly. Thank you!
August 7, 2011

Algebra
Thank you - that is exactly what I thought!
August 7, 2011

Algebra
I think this is a easy trick question, so I probably know the answer but I just wanted to double check. What is the domain and range of the function f(x) = 3^x Find the f^-1 and its domain and range? Thanks for your help.
August 7, 2011

algebra
Suppose a sample of Cesium-137 with initial mass of 200 grams decays to a mass of 160 grams voer the course of 10 years. Find the half-life of Cesium-137 (Round to the nearest year) How much Cesium-137 is left in the sample after 60 years? Round to the nearest tenth of a gram.
July 30, 2011

chemistry
what is the volume of a rectangle that has a mass of 19.0 and a density of 10.50 g/mL
July 16, 2011

College Algebra
Thank you bobpursley!
July 15, 2011

College Algebra
A farmer has 100 yeards of fencing with which to enclose two adjacent rectangular pens both bordering a river. The farmer does not need to fence the side with the river. What should the dimensions of the two pens together (a rectangle) be in order to yield the largest possible...
July 15, 2011

Chemistry
How many grams are in 8.2x10 to the power of 22 molecules of Fe2O3?
June 15, 2011

math
A partial payment is made on the date(s) indicated. Use the United States Rule to determine the balance due on the note at the date of maturity. (The Effective Date is the date the note was written.) Assume the year is not a leap year. P $1900, R 6%, effective date april 10, ...
June 13, 2011

Empirical Probability
Explain how empirical probability can be used to determine whether a die is “loaded” (not a fair die).
May 30, 2011

Chemistry
Which shows 15/c9d3 in simplified radical form with the smallest possible index?
May 25, 2011

Science
There's a grauph and obove the grauph it says gravity (mass movement) and then it says pg 67 69 and i dentify 4
May 5, 2011

MP Marking
It stands for maylin products.. I have a ring with same MP.. And I've. Been on google tryin to find out more info
April 28, 2011

chemistry
At room temperature, 20° C, water (H2O) is a liquid and oxygen (O2) is a gas. Based on kinetic molecular theory, which answer best explains the states of the two fluids?
April 18, 2011

Science PLEASE HELP!!
Relate the function of the following protist structures to human organs with similar functions: a)nucleus b)contractile vacuole c)food vacuole
April 12, 2011

chemistry
Calculate how many mL of the 5% w/v AgNO3* solution must be added to 0.4020g of the sample to precipitate all the chloride. Assume the sample is NaCl. * this means tat there are 5 grams of silver nitrate present per 100ml of solution.
April 3, 2011

math
Algebra:Functions Tell whether each represents a function. Explain. Area=LenghtxWidth
March 29, 2011

Chemistry
What happens if a student adds distilled water to a flask before starting the titration?
March 29, 2011

Chemistry
What happens when NaOH has been sitting for a couple of days without cover before starting the titration?
March 29, 2011

Math
Yeah that's what I thought. But I wasn't sure which was greater, the larger exponent or the smaller one. It's kinda confusing when your dealing with decimals and negative exponents. But thankss :)
March 28, 2011

Math
Which expression represents the larger number? A. 40.1 x 10 to the -6 power B. 4.1 x 10 to the -7 power C. 0.411 x 10 to the -6 power D. 0.04001 x 10 to the -5 power I got A, but I'm not quite sure if it's the right answer :/
March 28, 2011

physics
a 650 newton crate rests on the floor. how much work is required to move it at a constant speed, 3 meters against a friction force of 150 Newtons
March 22, 2011

Word Problems
The manager has one type of coffee that sells for $5 per pound and another type that sells for $11 per pound. The manager wishes to mix 90 pounds of the $11 coffee to get a mixture that will sell for $10 per pound. How many pounds of $5 coffee should be used?
March 7, 2011

Chemistry
If you react 55g of hydrazine and 55g of oxygen gas, what is the maximum moles of nitrogen dioxide gas that can be made and what is the limiting reagent?
March 1, 2011

Math please help!!
Solve the system using substitution. y = -2x + 5 3y = -x - 5 I already got the answer, just wanna make sure it's correct. Please show work as well.
February 28, 2011

Math
Solve each system x + 3y = 6 4x - 5y = 7 I need to know what x and y equal??
February 23, 2011

Math
Solve each system x + 3y = 6 4x - 5y = 7 I need to know what x and y equal??
February 23, 2011

Math
Oh alright I got it thank you :)
February 23, 2011

Math
What is 10x + 2y - 10 = 0 in slope intercept form ? and can you also explain how you got the answer cause I'm not really sure how to convert that into slope intercept (y = mx + b) m = slope and b = y intercept
February 23, 2011

Math
solve each system 1) 3x + y = 6 2x + 3y = 13 2) 2x + 5y - 6 = 0 -2x + y - 2 = 0 3) x + 3y = 6 4x - 5y = 7
February 22, 2011

Math
Okay so no one wants to help... alright -_-
February 22, 2011

Math
OMG SOMEONE HELP PLEASE !!!! :/ I'm desperate
February 22, 2011

Math
So my teacher is making me solve systems by graphing. One of them was 3x + y = 6 and 2x + 3y = 13 . I converted both of them into slope intercept form and got y = -3x + 6 and y = -2/3x + 13/3 . The thing is I don't know how to graph a fraction ?!?!?! And if I turn that ...
February 22, 2011

Biology
Kay so these are the strands of DNA 5' C C A G T A G T T 3' 3' G G T C A T C A A 5' Let's say the DNA molecule above were the parent strand of DNA. when the strands are split for replication, which strand would be the template for the leading strand? And ...
February 20, 2011

Math
1) What is the slope of a line that is parallel to y = 2? 2) What is the slope of a line that is perpendicular to y = 2? 3) What is the slope of a line that is parallel to x = -4? 4) What is the slope of a line that is perpendicular to x = -4? I don't get any of these ...
February 16, 2011

Math
I'm sure about it now :) Thank you for your help. I know it is C because once I put in the x and y axis into the equation, I multiplied 1/5 with -10 then added one and the result was three that's how I knew it was C :)
February 15, 2011

Math
Ummm is it C?
February 15, 2011

Math
For 1, I got G and for the second one I got B. are they correct?
February 15, 2011

Math
I need help with two problems. Just want to make sure that the answers I put are correct. 1) Which of the following is an equation of a vertical line? F. 4x + 5y = 0 G. -4 = 16x H. 3y = -9 I. 4x + 5y = -1 2) Which equation is the equation of a line that passes through (-10, 3...
February 15, 2011

chemistry
11 g over 100 g H2O at 20 degrees celsius
February 8, 2011

5th math
Math fractions decimals and percentage
January 27, 2011

Math
Please... someone help! :(
January 26, 2011

Math
For the equation y = -6x, what is the slope and y intercept? The formula is y = mx + B. I know that m = the slope and B = the y intercept. So in the equation y = -6x, what is the slope and y intercept? Is -6 the y intercept or the slope? Because if it's the slope, How am I...
January 26, 2011

Math
For the equation y = -6x, what is the slope and y intercept? The formula is y = mx + B. I know that m = the slope and B = the y intercept. So in the equation y = -6x, what is the slope and y intercept? Is -6 the y intercept or the slope? Because if it's the slope, How am I...
January 26, 2011

Math
Thank you (: Yes, I did. It's correct right?
January 15, 2011

Math
1. What are the next two terms of the following sequence? -3, 1, 5, 9... 2. What are the next two terms of the following sequence? -2, 4, -8, 16... 3. What is the common difference of the following arithmetic sequence? 13, -7, -27, -47... 4. What is the ninth term of the ...
January 15, 2011

Math
Write an equation in slope-intercept form of the line that passes through the given points. 1. (-3,4), (1,4) 2. (3, -2), (6,1)
January 13, 2011

Math
Describe a pattern in the sequence 4, 6.5, 9, 11.5 & find the next two terms of the difference.
January 12, 2011

Math
The domain of t(x) = -3.8x - 4.2 is {-3, -1.4, 0, 8}. What is the range?
January 12, 2011

Math
You earn $7.25 per hour babysitting. Write and solve an inequality to find how many full hours you must work to earn at least $200
January 11, 2011

math
What is a function rule for the perimeter P of a building with a rectangular base if the width w is two times the length l?
January 4, 2011

Math
The general gist of the question: Peter has to go to an office store, an electronics store, a clothing store, and a sporting store. There are 4 office stores, 4 electronic stores, 8 clothing stores and 5 sporting stores. How many combinations are there? Do I need to do a ...
December 12, 2010

english
What are you trying to say? It all depends on what you're trying to express. If you're answering a question "When did x happen?" you should answer "X happened when I was spoon-feeding her soup." The key here is that every sentence is a complete, ...
December 11, 2010

chemistry
146 mL of wet H2 gas is collected over water at 29.0 degrees celsius and room pressure of 750 torr. give the volume of the dry H2 gas collected at STP, give the mass of the dry H2 collected, and give the volume of the dry H2 at room conditions and the volume of H2O in the ...
December 8, 2010

algebra 2
27x^3-8=0 (difference of two cubes)
December 6, 2010

bonar law
I just want to know if when I am doing this equation, that the answer to b) is figuring out the x-intercept
December 5, 2010

6grade
5*5*2*
December 2, 2010

social studies
It affected them because there was more demand for them and a lot of big plantations.
November 15, 2010

physics
how do you find the initial velocity and final velocity of a ball shot up and off a cliff using only the distance and max height and time
November 11, 2010

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