Questions Asked on
September 22, 2007

science stream
what's the meaning of scale or porpotion in interior design elements?
asked by era 
math
The probability that it will be rainy on Monday is 7/10. The probability that it will be windy on Monday is 6/10. These events are independent. What is the probability that it will be rainy or windy on Monday?: * a.21/50 b.29/50 c.22/25 d.3/25 Please
asked by  
math
Juan and Anita are standing together in the schoolyard. Juan, who is 6 feet 2 inches tall, casts a shadow that is 54 inches long. At the same time, Anita casts a shadow that is 46 inches long. How tall is Anita?
asked by  
math
A boat cruises downstream for 2 hours before heading back. It takes 3.5 hours going upstream to get back. If the speed of the stream is 8 mph, what is the speed of the boat in still water?:
asked by  
math
If (x+4) is a factor of x211xw = 0, then the value of w is: a.60 b. 28 c. 28 or d.60
asked by  
math (factor)
If (x+4) is a factor of x211xw = 0, then the value of w is: a.60 b. 28 c. 28 or d.60
asked by  
math (speed)
A boat cruises downstream for 2 hours before heading back. It takes 3.5 hours going upstream to get back. If the speed of the stream is 8 mph, what is the speed of the boat in still water?:
asked by  
math (probability)
The probability that it will be rainy on Monday is 7/10. The probability that it will be windy on Monday is 6/10. These events are independent. What is the probability that it will be rainy or windy on Monday?: * a.21/50 b.29/50 c.22/25 d.3/25 Please
asked by  
math question
A dry cleaning service decided to raise the price of dry cleaning shirts from $4.00 to $5.00. The same percentage increase was applied to dry cleaning a jacket. The old cost of dry cleaning a jacket was $10.00. What is the new cost of dry cleaning a
asked by  
math problem
Sheila has $50.00. She goes to the mall and buys lipstick, and then she buys shampoo, which is half the price of the lipstick. She then spends half of what she has left on a purse, leaving her with $15.00. How much did the shampoo cost?: *
asked by  
math
A new race track being built is an oval that is made from a rectangle with a semicircle on each end. If the entire track is to be fenced in, what is the minimum amount of fencing needed? (Round you=r answer to the nearest foot.): * length= 50 width=22
asked by  
math
John wants to put a circular garden in his back yard. The garden has a diameter of 16 feet. He needs to cover the garden with peat moss. Each bag of peat moss can cover 90 square feet. How many bags does he need?: *
asked by  
math (combinations)
The Hamburger Depot offers burgers fixed 5 different ways. They also offer French fries, tater tots, onion rings, and cheese sticks as side orders. How many different combinations of one hamburger and one side could be offered?: *
asked by  
Math
Bill has three times as many comic books as Chuck. Chuck has twothirds as many comic books as Steve. Steve has 27 comic books. How many comic books does Bill have?: *
asked by  
math question
A pool company will install a round swimming pool in the middle of a yard that measures 40 ft. by 20 ft. If the pool is 12 ft. in diameter, how much of the yard will still be available?: *
asked by  
math (tiles)
Ms. Johen is making a rectangular mosaic on her wall. She wants to use 12 rows of tiles, with 20 tiles in each row. If she has 188 yellow tiles, how many blue tiles will she need to complete her design?:
asked by  
Math
Mr. Davis bought some boxes of tea bags that were on sale. If each box holds 12 tea bags, which could be the total number of tea bags that he bought?: *
asked by  
Math (Plotting Points)
What shape will result in plotting and connecting the following points on a coordinate graph? (2, 1) (2, 1) ( 4, 4) (4, 4)
asked by  
math (percent change)
What is the percent change from 2,100 to 1,890?:
asked by  
math
1. [12/(x^2  4)]  [(3x)/(x^2+2x)] The answer is: [(x^2 + 7x + 6)/x(x+z)(xz) I don't understand how to get that! was the z a typo? even if it's supposed to be a 2  I don't understand!
asked by anonymous 
MATH HELP
simplify: [fourth root(a^6)][2a(square root(a))] when a is greater than 0 solution: a times(square root(a)) please explain thanks!
asked by anonymous 
mathsolving for X
solve for x: 1. x = (m/n)x + 2 2. x = [2/x]  [2/(2x+1)] = 1/(x+1) I don't understand how to properly isolate X to get the value of x...please help!
asked by anonymous 
math: polynomials
Please help me with these three problems! 1. solve for x: 3x + 5x^(1/2)  28 = 0 2. solve for x: square root(2x5)  square root(x2) = 2 3. Find all values so that polynomial: ax^2 + 5x + 2 has two distinct real roots.
asked by anonymous 
math  log and exp. functions
1. evaluate log(base2)[(1/32) X 4^9] 2. simplify: log x^2 y  (1/2)logx + 3 log y
asked by anonymous 
math word problems
1. The sine of twice an angle is square root (2)/2. If the angle is between 0 and 2pie, what are its possible values? 2. The radius of a circle is increased by 20%. What is the percent increase in area?
asked by anonymous 
Science (chem)
Calculate the weight of water that can be removed from a wet organic phase using 50.0g of magnesium sulfate. Assume that it gives the hydrate listed in table 12.2 table says hydrated: MgSO4.7H20 I'm not quite sure how I would go about this b/c when drying
asked by ~christina~ 
math (mode, median, range)
What are the mode, median, and range of the following set of numbers? 6, 7, 7, 7, 8, 4, 4, 6, 3, 7, 1, 0:
asked by  
biology
Subjects Art Business Computers English Foreign Languages Health Home Economics Mathematics Music Physical Education Science Social Studies Features Contribute Download Experts Forum Job Openings Homework Tips Libraries.Jiskha Link to Us Reference School
asked by Josh 
Math (Area)
A pool company will install a round swimming pool in the middle of a yard that measures 40 ft. by 20 ft. If the pool is 12 ft. in diameter, how much of the yard will still be available?: 466.86 ft2 762.32 ft2 686.96 ft2 347.84 ft2
asked by  
math
If (x+4) is a factor of x211xw = 0, then the value of w is: a.60 b. 28 c. 28 or d.60 Please explain your answer. Thank you.
asked by anonymous 
math (find the value of constant)
If (x+4) is a factor of x211xw = 0, then the value of w is: a.60 b. 28 c. 28 or d.60 Please explain your answer. Thank you.
asked by anonymous 
Math question
Ms. Johen is making a rectangular mosaic on her wall. She wants to use 12 rows of tiles, with 20 tiles in each row. If she has 188 yellow tiles, how many blue tiles will she need to complete her design?: 52 48 64 334
asked by anonymous 
Biology
In DNA extraction of plants, which plants would work well for extraction and why?
asked by Deborah 
biology
I have another experiment that I am not clear about the results. Any help? Put water, hydrogen proxide, and manganese dioxide powder in test tube, see what happens. Then put sand in the mixture. Results? Then,put liver in it. What happens? Thanks for
asked by Josh 
MaTh
Debbie traveled by boat 5miles upstream to fish in her favourite spot> Because of the 4mph current, it took her 20 minutes longer to get there than to return. How fast will her boat go in still water ???? Please help !!!!!!!!!!!!!!
asked by mo 
math (discount)
An instrument store gives a 10% discount to all students off the original cost of an instrument. During a back to school sale, an additional 15% is taken off the discounted price. Julie, a student at the local high school, purchases a flute for $306. How
asked by anonymous 
math (sales tax)
Jill bought supplies at a hardware store that cost $41.75. If she paid sales tax of $1.67, what was the sales tax rate?: * 5.5% 5.0% 4.5% 4.0% Please explain, thanks.
asked by anonymous 
math (find height)
A piece of construction paper is .01mm thick. It is cut in half and one piece is placed on top of the other to make a pile. These are cut in half, and all four pieces are placed in a pile. These four are cut in half and placed in a pile, and the process is
asked by anonymous 
math (distance problem)
The points A, B, C, D, and E are located on a straight line in order. The distance from A to E is 20cm. The distance from A to D is 15cm. The distance from B to E is 10cm. C is halfway between B and D. Find the distance from A to C.: * 2.5 cm 5 cm 10 cm
asked by anonymous 
math (altitude)
An airplane flying at an altitude of 31,000 feet descends at a rate of 1,200 feet per minute. If the plane descends for 15 minutes, what would its altitude be in feet?: * 13,000 23,000 18,000 21,000
asked by anonymous 
math question (counting)
When Josh was visiting his family’s farm, he saw that the farm only raised chickens and cows. Josh counted 38 heads and 100 feet in the barnyard. How many chickens and how many cows were in the barnyard?: * 26 chickens and 12 cows 20 chickens and 18 cows
asked by anonymous 
analytical chemistry
"experiment: spectrophotometric determination of the acid dissociation constant of methyl red" 1. Why is pH plotted against log([MR]/[HMR]) to get the pKa of methyl red? 2. Why is it right that HMR has a pH equal to 2 and MR to have a pH equal to 8?
asked by smiley 
Calculus
limh>0 f(x+h) f(x/h
asked by K'Maria 
chemistry terms
What does titration in nonaqueous media mean? What is a nonaqueous media by the way?
asked by :kkk: 
Repost for Student A re: English sonnet
http://www.jiskha.com/display.cgi?id=1190428562 Just in case you don't find all this below ... =)
asked by Writeacher 
math
express (x7)(x+3) as a trinomal
asked by mike 
Career in medicine?
I am a senior in high school and I am considering going into medicine when I graduate. When I say medicine I don't mean nursing, I have always wanted to be a doctor. I will say that I am "financially challenged". I know that med school is expensive to say
asked by Audrey 
Religious Eduction
Who are the five pillars of Islam
asked by Shaquille Clarke 
Algebra
finish the equation 1.6+4x=8
asked by Bobby 
Algebra 2
Give three points that lie on line 3x+2y=6. I think the answers might be: (0,6)(3,6) and (5,6). Could anyone help?
asked by Danielle 
physics all the time
Ya so honestly...I cant figure out how to graph this graph. OK so Willy throws a coin from the top of a cliff. If he throws it with an initial velocity of 22 m.s in the horizontal direction, plot the trajectory of the coin at intervals of 0.10s. How can
asked by physics sucks but PLEASE help 
Texas History
I have a test Tuesday and i can't figure out who San Saba is. Please help if you know who he is.
asked by lee 
Agriculture & Envirnoment
List ten Pharmaceutical Plant and their uses
asked by Shaquille Clarke 
mathematics
10*10*10=
asked by Shaquille Clarke 
Agriculture & Envirnoment
what is a pharmaceutical plant
asked by Shaquille Clarke 
Calculus
A spherical balloon with a radius "r" inches has volume V(r)=(4/3)(pi)(r^3). Find the function that represents the amount of air required to inflate the balloon from a radius of "r" inches to a radius of r+1 inches.
asked by Raj 
Philosophy
what is selective ethics and why is it wrong to use it in science?
asked by Jade 
French
Based on all the questions I've asked. I believe there are no mistakes in these sentences? J'aime la musique japonaise. J'ai un frere, il a vingt sept ans. Elle a vingt ans. Elle est jeune, elle est jolie. (Should I use jolie or belle?) Elle aime la
asked by Mischa 
Humanities (Multiple Questionst)
#1. The Iliad is a work that describes events related to the A) founding of Minoan culture B) early battles of the Persian Wars. C) attack on the Dorians on Mycenae D) Mycencean attack on the coastal of Troy #2. Which one of the following is NOT true
asked by Tyson Hanlon 
Math
The attendance at a baseball game was 400 people. Student Ticket cost $2 and adult tickets cost were $3. Total Ticket Sales were $1050. How many tickets of each type were sold? Ok, this is what I did: 2x+400=1050 400=400  2x=650 x=325
asked by Robert 
French for Mischa
The first question I used to ask my students was "Why are you studying French?" They didn't always have the "best" reason but those that had a good reason, started with a great attitude and did well. In case they didn't have a good reason, I had a handout
asked by SraJMcGin 
French for Mischa
I'm not sure if you were the one I gave the pronunciation sites to. Just in case I missed you and/or you would like them: 1. http://french.about.com/library/begin/bl_alphabet.htm 2.
asked by SraJMcGin 
French for Mischa
DEFINITE & INDEFINITE ARTICLES: The definite article "THE" has four forms: le = before a masculine singular noun beginning with a consonant. (le livre = the book) la = before a feminine singular noun beginning with a consonant. (la page = the page) l' =
asked by SraJMcGin 
Searching on the Internet
What keywords should I use in search engines to get good quality results? I want to search that people who are exposed to advertisements often buy what they do not need and advertisements cause them to get addicted to that product which makes them max out
asked by Anonymous 
French for Mischa
PLURAL OF NOUNS (that refused to post before!) Most French nouns, like most English nouns, form their plural by adding "s" to the singular: SINGULAR PLURAL le garçon (the boy) les garçons (the boys) l'élève (the pupil) les élèves (the pupils) la
asked by SraJMcGin 
for SraMgin
i still don't understand why he thinks "selective ethics" is wrong, though
asked by Jade 
Managerial economics
Suppose Nick produces to goods @ cost C(q1,q2)=1000=.5q1^2+.5q2^2>5q1q2 If nick produces only one of he two goods his cost is given this cost function with the other good set = to 0. The inverse demand functions for the two goods are given by p1=a.25q1
asked by Patrick 
math radicals
5 square root 2 divided by square root 10+1
asked by melissa 
mathstory question
For a cone, the formula r = 3V divided by rh( all enclosed in square root symbol) describes the relationship between the radius r of the base, the volume V, and the height h. Solve the formula for V.
asked by melissa 
PREALGEBRA
SOLVE EACH FORMULA. F=5GH FOR H
asked by Anita 
Managerial economics
Posted by Patrick on Saturday, September 22, 2007 at 5:25pm. Suppose Nick produces to goods @ cost C(q1,q2)=1000=.5q1^2+.5q2^25q1q2 If nick produces only one of he two goods his cost is given this cost function with the other good set = to 0. The inverse
asked by Patrick 
prealgebra
3x + y = 7 for y
asked by Nita 
French for Mischa
CONTRACTIIONS WITH THE DEFINITE ARTICLE & POSSESSION WITH "DE" CONTRACTIONS: The prepositons "a" and "de" contract with "le" and "les." a + le = au au cousin (to the cousin) a + les = aux aux dames (to the ladies) de + les = du du livre (of/from the book)
asked by SraJMcGin 
French for Mischa
PERSONAL PRONOUNS SUBJECT PRONOUNS Singular je (j') = I tu = you (familiar) il = he, it elle = she, it on = one, "we," you, they, people Plural nous = we vous = you (can be formal singular as well as familiar plural) ils = they, masculine elles = they,
asked by SraJMcGin 
algebra
A=P+PRT for R
asked by Nita 
Psychology
Does OU require a letter of recommendation?
asked by Summer 
French for Mischa
AGREEMENT OF ADJECTIVES FORMS: Singular: Masculine = petit riche gris heureux actif cher Feminine = petite riche grise heureuse active chère Plural: Masculine = petits riches gris heureux riches gris Feminine = petites riches grises heureuses actives
asked by SraJMcGin 
Economics
Think of a business. Describe its operation in terms of factor markets and product markets.
asked by Anonymous 
english
If you are writing an essay about a narrative in your textbook, do you italicize, underline, quote the title or what? Thanks!
asked by Lynus 
prealgebra
The perimeter of an equilateral triangle is 7 inches more than the perimeter of a square,and the side of the triangle is 5 inches longer than the side of square.Find the side of the triangle.
asked by Nita 
French
Can someone check this recipe for me? I don't know how to use "de" properly. * 1 livre [454 g] de les liens de saucisson italiens doux, a coupé * 6 oeufs * 2 [10ounce/de 284 mL chaque] d'emballe gelé a coupé des épinards, dégelés et bien drainés *
asked by Anonymous 
French for Mischa
PRESENT TENSE OF REGULAR ER VERBS AFFIRMATIVE: jouer = to play (the infinitive is introduced by "to" and does not say WHO or WHEN; that's why it's called "infinite/infinitive!") (I play, I DO play, I AM playING) = note 3 possible English translations for
asked by SraJMcGin 
Language Arts/ Reading
Which is true of reading methods? 1. Quality literature aids success for all reading materials. 2. Whole language has been proven to be the most comprehensive reading method. 3. Experiences focused on written language are the most beneficial to children.
asked by Anonymous 
Math, Still Need Help!
Ok, This is the question: The attendance at a baseball game was 400 people. Student Ticket cost $2 and adult tickets cost were $3. Total Ticket Sales were $1050. How many tickets of each type were sold? This is what I did: 2x+400=1050 400=400 
asked by Robert 
English
Excerpt from Night Sixth Paragraph He reached the first cauldron. Hearts raced: he had succeeded. Jealousy consumed us burned us up like straw. We never thought for a moment of admiring him. Poor hero, committing suicide for a ration of soup! In our
asked by Sonic 
project...
Hi I was working on an essay for my project, and I forgot what the word was for cancer that is not deadly... it was _______ cancer, but I just forgot. Ever experience when you are working talking, the words on the tip of your tongue, but you don't know
asked by Jason 
Help please
This is a tough one you got to help me... In this sentence can you tell me what every words part of speech is... He plants a garden in the courtyard.
asked by beano 
Mathematics
The formula N = 2Xsquared + 22X + 320 represents the number of inmates, N, in thousands, in U.S. state and federal prisons x years after 1980. According to the formula, in what year were there 740 thousand inmates in the U.S. state and federal prisons?
asked by Demetria 
CALCULUS
If cos(t)=–7/9, find the values of the following trigonometric functions. Note: Give exact answers, do not use decimal numbers. The answer should be a fraction or an arithmetic expression. a) cos (2t) b) sin (2t) c) cos(1/2) d) sin (1/2) i don't even
asked by Stumped Student 
Physics
On its way to Peace River, Alberta, a car enters a passing zone on the highway. The car is 25.0 m behind a truck and both vehicles are travelling at 41.0 m/s. The car accelerates uniformly to overtake the truck and after the car has travelled 280m, it is
asked by Sammy 
History
How does Han Fei Tzu propose to measure individual action? Is this a system of ethical decision making for individuals? Why?
asked by Deborah 
Economics
What is an economic concept necessitating choices and priorities in any society? Any encyclopedia entry illustrating how a huntergatherer group collects and shares food resources is decribing that society's _________. Would it be economic system??
asked by Anonymous 
genetics
1. The genes for mohogany eyes and ebony body are approximately 25 map units apart on chromosome III in Drosophila. Assume that a mahoganyeyed female was mated to an ebonybodied male and the resulting F1 phenotypically wild type females were mated to
asked by stew 
genetics
3. Assume that there are 12 map units between two loci in the mouse and that you are able to microscopically observe meiotic chromosomes in this organism. If you examined 200 primary oocytes, in how many would you expect to see a chiasma between the two
asked by stew 
chemistry
Cu(NO3)2 (aq) + H2O===> ?
asked by Ashley 
marketing
how a competitve onslaught could been avoided in a company
asked by miacccccc