Wednesday
April 16, 2014

Posts by mark


Total # Posts: 1,221

Algebra
x over 2x-5 - 5 over 6x-15

Math
Their are 18 green blocks in a bag.their are 3 white blocks for every 2green blocks.witch proportion can be used to find w,the total number of white blocks in the bag?

Math help Please
My willy bird is 6 inches and has a mass, M, of 2.1kg. During penetration, it reaches a force or 15.0 N with a coefficient of friction 0.75. Calculate its rotational velocity given no respect to time. How much work is done in a thirty second period?

Economics
Suppose Bill is on a low-carbohydrate diet. He can eat only three foods: Rice Krispies, cottage cheese, and popcorn. The marginal utilities for each food are tabulated below. Bill is allowed only 167 grams of carbohydrates daily. Rice Krispies, cottage cheese, and popcorn prov...

Physics
Find the total change in the internal energy of a gas that is subjected to the following two-step process. In the first step the gas is made to go through isochoric heating until it gains 5363 J and its pressure is 2.92 105 Pa. In the second step it is subjected to isobaric a...

Math
Two angles are complementary. Twice one angle plus the other is 96. Find the measure of each angle.

Science
If the density of a steel hammer 7gm/cm on earth what would the density be on a spaceship?

Science
How many minutes are required for a radio signal to travel for Earth to a space station in Mars if the planet Mars is 7.83 x 10 to the 7th km from Earth?

Physics
A 11 kg box slides 4.2 m down a frictionless ramp and then collides with a spring whose spring constant is 250 N/m. What is the maximum compression of the spring? I got 1.35 m but it is incorrect. Any help would be great!

math
i put 4000.00 in savings. at end of 3 years the account earned 960.00 in simple interest at what simple interest rate did the account grow? please show me the work.

ECE
Flannel board stories encourage the language arts skill of __________ more than other skills. A. listening B. writing C. speaking D. reading

Chemistry
Potassium permanganate (KMnO4) solutions are used for the determination of iron in samples of unknown concentration. As a laboratory assistant, you are supposed to prepare 700. mL of a 0.200 M KMnO4 solution. What mass of KMnO4, in grams, do you need?

Physics-Kinetic Energy
Can someone help me solve this kinetic energy problem? A 2050 kg truck is traveling east through an intersection at 2.3 m/s when it is hit simultaneously from the side and the rear. (Some people have all the luck!) One car is a 1200 kg compact traveling north at 4.5 m/s. The o...

Algebra
What is the domain of this relation? Is it a function? {(2, 7), (0, 3), (-4, 3)} Select one: a. {7, 3}; yes b. {2, 0, -4}; no c. {7, 3}; no d. {2, 0, -4}; yes

Algebra
Determine which point, if any, is in the solution half-plane of the two variable inequality. 3x – 2y < 6 Select one: a. (4, 1) b. (-1, -5) c. (1, 0) d. (2, -2

math
an open rectagular box with length of 6 feet, width of 4 feet and height of 2.5 feet is to be painted on all exterior sides, including the bottom, with a special waterproof coating. Each gallon of this special coating covers 12 square feet of surface area and costs $36.00. The...

english(check answers)
C.

english(check answers)
which of these sentences shows correct comma usage? A.Yes i enjoy writing poetry in my spare time.(I PICK THIS) B.After,a while,i suppose,the boy became less scared of the new girl. C.By the end of the first stanza,i had guessed that the new kid was a girl.(I PICKED THIS) D.be...

english(check answers)
please check answers 7.which of these sentences shows correct comma usage? A.Yes i enjoy writing poetry in my spare time.(I PICK THIS) B.After,a while,i suppose,the boy became less scared of the new girl. C.By the end of the first stanza,i had guessed that the new kid was a gi...

english(2 Qs)
please answer these 2 questions. please 7..which of these sentences shows correct comma usage? A.Yes i enjoy writing poetry in my spare time. B.After,a while,i suppose,the boy became less scared of the new girl. C.By the end of the first stanza,i had guessed that the new kid w...

Social Studies (Ms. Sue)
I only see one answer choice

Math
A carpenter has several boards of equal length. He cuts 3/5 of each board. After cutting the boards the carpenter notices that he has enough pieces left over to make up the same length as 4 of the original boards. How many boards did the carpenter start with?

College Algebra
A compound inequality uses one of the words and or or. Explain how you will determine whether to use the intersection or union when graphing the solution set

math
its about phones like att has a monthly fee of $39.99/mo and 450 anytime minutes which are included in the plan and any additional minutes are $0.45/min Sprint-has a monthly fee $34.99/mo and 450 anytime minutes which are included in the plan and any additional minutes are $0....

college algebra
A circular vent pipe with a diameter of 5.5 inches is place on a roof tht has a slope of 1/4. Find an equation of the ellipse that should be cut from the roof so that the pipe will fit. roound parameters to the nearest hundreth.

College Algebra
A circular vent pipe with a diameter of 5.5 inches is place on a roof tht has a slope of 1/4. Find an equation of the ellipse that should be cut from the roof so that the pipe will fit. roound parameters to the nearest hundreth.

Math
Well, first you have to find out how many are fielders. If 8 are pitchers and 5 are catchers, then the rest are fielders. Simply subtract 8 and 5 from 24. Then you take that number and subtract 5 from it. (Since difference means to subtract. And you're looking for the diff...

combinatorical mathematics
At Brilli's zoo, she is trying to train a monkey to learn how to count. The monkey is given a stack of cards, numbered 1 to 30, in some random order. The cards are laid out from left to right. Each time the monkey moves the card numbered i+1 to the immediate right of the c...

algebra 1
how you get the answer for c?

algebra 1
This homework question was removed due to a copyright claim submitted by the National Network of Digital Schools Management Foundation (NNDS).

algebra 1
Which is the equation of the line that contains the points (0,3) and (-2,4)?

algebra 1
Look at the pattern that follows. Which expression represents this pattern algebraically? 8, 17, 26, 35, 44, …

algebra 2
The Butler family drives home from a vacation. The table of values that follows shows the relationship between the number of gallons, g, of gasoline their car uses and the distance in miles, d, the car is from home: Gallons of Gasoline Used (g) Distance from Home (d) 1 144 2 1...

algebra 1
A manufacturer is cutting plastic sheets to make rectangles that are 11.125 inches by 7.625 inches. Each rectangle’s length and width must be within 0.005 inches. A. Plot the acceptable range of lengths on the number line that follows: B. Write an inequality to represent ...

algebra 1
thats what he had for an answer but he thinks a reasonable answer is w= -3 why though? and why is it incorrect?

algebra 1
for |4-3w|>8

algebra 1
This homework question was removed due to a copyright claim submitted by the National Network of Digital Schools Management Foundation (NNDS).

Spanish
Are my answers correct? If I am wrong please don't give me the answer. Just ask me to try again. My choice marked by *** 1. Yo ______ en Chile y él ______ en Argentina. ***estoy . . . está estamos . . . estoy está . . . está estoy . . . est&aacu...

science
Any topic (writer's choice) Research paper Science 3 pages / 825 words Discipline: Science Type of service: Writing from scratch Format or citation style: APA

medicine
A physician performed an aspiration via thoracentesis on a patient in observation status in the hospital. The patient has advanced lung cancer with malignant pleural effusion. Later the same day, due to continued accumulation of fluid, the patient was returned to the procedure...

Math.. PLEASE HELP!! :(
If I divided 1.23x10^-10 and 1.4x10^-8, would my answer be 0.88x10^-18?

Math
If I divided 1.23x10^-10 and 1.4x10^-8, would my answer be 0.88x10^-18?

Science
What condition is needed for an experiment to have useful data?

Science
What condition is needed for an experiment to have useful data?

Science
What condition is needed for an experiment to have useful data

History
Well say you were applying into a college but you had 15 choices to choice from. However, you had to limit the choices to 5 due to expenses and how far it was from home. So you apply into all 5 colleges and you only get into 1 of those 5 colleges. You go to the college but lat...

Science
What condition is needed for an experiment to have useful data?

Beginner French Work check
Hello! Just wondering if someone could check my work as there were a few areas that i'm not completely confident about. Thank you so much! Complete the sentence with the correct form of the verb in the future. Elle ___sera venu_____ (venir) chez moi ce soir. Nous ___ferons...

Intro to ethics 120
he outlawing of slavery and extending voting rights to women seem to indicate that ethics can have beneficial results. Give an example from the past that indicates a similar result or a current social policy that might be regarded as wrong, which therefore needs to be changed....

physics
Consider an ideal spring that has an unstretched length l0 = 3.9 m. Assume the spring has a constant k = 20 N/m. Suppose the spring is attached to a mass m = 6 kg that lies on a horizontal frictionless surface. The spring-mass system is compressed a distance of x0 = 1.7 m from...

economics
Speculate as to why price leadership is legal in the U.S. whereas price fixing is not?

French
Thank you for the quick response! I have a PC with Windows. Also, i am having a hard time understanding what Direct and In Direct Pronouns i should use when they are in the same sentence. Elle demande le menu au serveur. Elle ___(1)___ ___(2)___ demande 1. le 2. lui Could you ...

French
Hello, I am taking a French course online and i just want someone to check some of my work from time to time to make sure i am doing it correctly and to give me any tips they may have. What i have copy and pasted below took me awhile to get so i just wanted a second opinion on...

Quantum physics
Anon, please help with 7 and 10

Quantum physics
Anon: 3rd choice foê Q3

Quantum physics
Someone know answers for 7th and 10th? Attempts are finishing :(

Literature
I'm not sure how to write it. I've learned about irony, foreshadowing, symbolism, etc.

Literature
HELP PLEASE!!! Can you state the aspect of style revealed in this quote so I can write a paper? "Clyde if I could only die. That would solve all this. And I have prayed and prayed that I would lately, yes I have. For life does not mean as much to me now as when I first me...

literature
HELP PLEASE!!! Can you state the aspect of style revealed in this quote so I can write a paper? "Clyde if I could only die. That would solve all this. And I have prayed and prayed that I would lately, yes I have. For life does not mean as much to me now as when I first me...

English
The flames slowly grow stronger. Is the word "stronger" used as an adverb modifying the verb "grow."

English
Except for a dog he is traveling completely alone. How many adverbs are there? I know "completely " is one . Does it modify is traveling?

English
In this sentence -- In this story, a nameless character goes outdoors on a terrible cold day in the Yukon. How many adverbs are there and what do they modify? Is it just "outdoors" and it modifies "goes"

Literature
I really need HELP!!! I need a quote for personal connection in American Tragedy by Theodore Dreiser and an explanation of the quote.

Stats
A study found that for adults the general self-efficacy scale mean score was 35 and standard deviation was 12. A group of clients (n=14) was measured for their general self-efficacy with the same measure and found having 40 with standard deviation of 20. A group of therapist w...

programming Visual Command Prompt
This is the question that I have to do can someone please help?! QUESTION 2 - MANDATORY The file savings.txt contains the names and savings of 3 Bank customers in the last four months. Month1 Month2 Month3 Month4 Dennis Daly 480 620 57 73 Brid Jones 82 61 550 65 Mary Henry 49 ...

Psychology
A!! thank you!

Psychology
Phyllis is anxious to ride the parachute drop at the park. Her friend, Betsy, feels faint at the thought and does not enjoy watching others ride. These different reactions demonstrate that _______________. 
 A. perception of stress varies among individuals̷...

Psychology
Ralph was the third child born to a family of seven. At times his mother confused his name with those of his five brothers. His was never the tallest, the strongest, the fastest, or the smartest in school. He was also too little to do something or too old to be "acting th...

Math
In the Capital Asset Pricing Model, the market risk premium is estimated over a long period of time because: A. more data is always better than less. B. a longer holding period gives a more reliable estimate because it is, in effect, a larger sample size. C. almost all investo...

Math
In the Capital Asset Pricing Model, the market risk premium is estimated over a long period of time because: more data is always better than less. a longer holding period gives a more reliable estimate because it is, in effect, a larger sample size. almost all investors hold s...

General Math
A. rx is the return for a market index such as the S&P 500 Index. B. rx is the return for the stock being analyzed for example, IBM s return if we are estimating IBM s beta. C. the slope measures the average return for the market portfolio for each percentage change in the val...

Finance
I think that it is B the risk rate of return plus a risk premium

Finance
A. as the highest return a risk-averse investor wants from an investment. B. as the risk-free rate of return plus a risk premium. C. as the historical rate of return plus a risk premium. D. as a comparison between the expected and historical rates of return

Maths
this question is incomplete.

Math
Brilli the ant has a block of cheese that is in the shape of an equilateral triangle. She is hosting a party, and has invited her two-legged house mates. She insists that all of her guests get a piece of cheese that is in the shape of an isosceles triangle. What is the maximal...

Math
In triangle ABC, D is the midpoint of BC. E is the foot of the perpendicular from C to AD. If CD=7√,DE=3√, what is the measure (in degrees) of ∠BED?

Math
Brilli the ant has a block of cheese that is in the shape of an equilateral triangle. She is hosting a party, and has invited her two-legged house mates. She insists that all of her guests get a piece of cheese that is in the shape of an isosceles triangle. What is the maximal...

Math
Let ABCDEF be an equiangular hexagon with perimeter 98 such that EF=2CD=4AB and BC=2FA. What is the length of EF?

Math
How many {(1,1),(1,−1),(2,0)}-lattice paths are there from the point (0,0) to the line x=8? Details and assumptions A lattice path is a path in the Cartesian plane between points with integer coordinates. A step in a lattice path is a single move from one point with inte...

Physics
You bounce on a huge trampoline and start oscillating up and down with a period of 3 s. After a long while, you come to rest but the trampoline below you is displaced below its natural height. How much is the trampoline bent in m? Model the trampoline as a spring.

Math (algebra)
Let x and y be real numbers satisfying 4x^2+5y^2=1. Over all such pairs, let the maximum and minimum values of 2x^2+3xy+2y^2 be M and N respectively. If M+N+MN=a/b, where a and b are coprime positive integers, what is the value of a+b?

Essay
Can someone help me please I have to write a essay on if you won a million dollars and cannot spend it on yourself or family what would you do with it. I need help to start it just the opening line please

Math (please help me Steve)
The squares of a 3×3 grid are filled with non-negative integers such that the sum of each row and the sum of each column is 7. How many different ways can the squares be filled? The numbers in each grid square does not need to be distinct. Rotations and reflections are d...

Physics (help steve)
no, it's wrong

Physics (help steve)
A boy is spinning on a chair and holding a paper bag so that it is horizontal, and perpendicular to the axis of the rotation. What should be the angular velocity of the boy in radians/second so that the bottom of the bag breaks? Details and assumptions Assume paper breaks at a...

Math (please help steve)
The squares of a 3×3 grid are filled with non-negative integers such that the sum of each row and the sum of each column is 7. How many different ways can the squares be filled? The numbers in each grid square does not need to be distinct. Rotations and reflections are d...

Math (algebra)
For every positive integer n, consider all monic polynomials f(x) with integer coefficients, such that for some real number a x(f(x+a)−f(x))=nf(x) Find the largest possible number of such polynomials f(x) for a fixed n<1000.

Math
The squares of a 3×3 grid are filled with non-negative integers such that the sum of each row and the sum of each column is 7. How many different ways can the squares be filled? The numbers in each grid square does not need to be distinct. Rotations and reflections are d...

Calculus
A spherical fish tank of radius 8 meters is being filled with at a constant rate of Rπ meters cube of water per second. At height 3 meters, the rate of change of the height is 1 meter per second. What is the value of R?

Calculus
Let V be the volume of the three-dimensional structure bounded by the region 0≤z≤1−x^2−y^2. If V=a/bπ, where a and b are positive coprime integers, what is a+b?

Calculus
Let R be the region bounded by y=−3(x−1)(x−3) and the x-axis. Let S be the solid obtained by rotating R about the y-axis. The volume of S is given by Nπ. What is the value of N?

Calculus
There are two points P=(a,a^2) and Q=(b,b^2) (a<b) moving along the parabola y=x^2. If the area of the region bounded by y=x^2 and the line segment PQ is always 36, what is the value of lim as a→∞ of PQ/a?

Chemistry
A metal crystallizes in a face-centered lattice. The radius of the atom is 198pm and the density of the element is 6.57g/cm^3. What is the identify of the metal?

Chemistry
Bulb A is 100 mL and contains Helium at 1 atm. Bulb B is 500 mL and contains Argon at 2 atm. The bulbs are connected together by a valve. What is the pressure of gas A after the valves are opened? (assume constant temperature)

chem
What will be the final volume of a 425 mL sample of gas initially at 22 degrees C and 1 atm pressure when the temperature is changed to 30 degrees C and the pressure to 0.471 atm?

MATHS
remember me stupid boy

MATHS
thats my friend

math
Angle P and Q are a linear pair. Angle Q is 36 degree less than twice of angle P. The measure of angle P is ? degree, and the measure angle Q is ? degree.

Physics
7) An apple falls from a tree (h = 9m). In the absence of air resistance, how fast is it traveling when it strikes the ground?

Science
7) An apple falls from a tree (h = 9m). In the absence of air resistance, how fast is it traveling when it strikes the ground?

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