Sunday

February 1, 2015

February 1, 2015

Total # Posts: 266

**Algebraic expressions**

Please can you give me an algebraic expression for the following I am litterally racking my brain on this, please Rita has $315 in the bank. This amount is three times the amount that Fred has. How much does Fred have? Use f to represent Fred's amount
*March 2, 2010*

**Math**

Find an equation of the line that passes thru the given point and has the given slope Express ur answer in slope-intercept form. (8,0), m=-3
*February 18, 2010*

**Math**

Write Each equation in slope-intercept form then identify the slope and the y-intercept for each line 2x-y=12
*February 18, 2010*

**math**

Write the equation with the given slope and the given y-intercept 1. slope -2/3, y-intercept (0,5) 2. slope 5/6, y intercept (0,1/3)
*February 18, 2010*

**math**

60.95
*February 18, 2010*

**Science**

I do not understand your question. Do you mean sugar water?
*February 16, 2010*

**Algebra**

Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 60 mph, train B is traveling at 70 mph. Train A passes the station at 10:15pm. If train B passes the same station at 10:45pm at what time will train B catch train A? __:__ (am/pm) ...
*February 16, 2010*

**College Algebra**

Thank you again Ms. Sue for your help..math makes me crazy :)
*February 16, 2010*

**College Algebra**

okay..I drew the rectangle..18*2=36 length. The widths must make the perimeter greater than 78 cm.. I took 78-36 to get 42 and divided it by 2 for the two width sides and got 21. You stated that the width must be shorter than the length..21 cm is not shorter than 18 (Length).....
*February 16, 2010*

**College Algebra**

..so I want to multiply 18 by two to get 36? I got that..I am stuck on the area that says "what widths will make the perimeter greater than 78 cm?"..I appreciate your response, but am still confused..math is my downfall for sure. Is my final answer of 42 correct or ...
*February 16, 2010*

**College Algebra**

The length of a rectangle is fixed at 18 cm. What widths will make the perimeter greater than 78 cm.? *widths must be greater than __cm. I have been working at this for two hours and even after reviewing my readings I am just as confused as ever.
*February 16, 2010*

**algebra **

Area of a square find a polynominal A(X) that represents the area of the shaded region u have a square with an arrow pointing left and right at top of the square with x @ the top and a arrow up and down on the right side of the square.The #3 on the right and left of the square...
*January 24, 2010*

**Algebra 209**

the perimeter of rectangle back yard is 6x+6 yards if the width is x yards find a binominal that represents the length.
*January 24, 2010*

**Algebra **

is 6x+6yards if the width is x yards find a binominal that represents the length
*January 24, 2010*

**Pre Calc**

sin^2(x) - cos^2(x) = 1 + cos(x) the answer is equal to or greater than 0 and less than 2 pi
*January 10, 2010*

**chemistry**

For each of the following unbalanced equations, indicate how many moles of the first product are produced if 0.625 mol of the second product forms. State clearly the mole ratio used for each conversion. CH3CH2OH(l) + O2 --> CH3CHO(aq) + CH3CHO(aq) + H2O(l)
*January 9, 2010*

**psychology**

Such tests as the Rorschach Inkblot Test and the Thematic Apperception Test are examples of what? projective measures self-report measures objective measures observational measures
*December 21, 2009*

**psychology**

The observational learning approach states that stereotypes and prejudices are acquired through what? repressing of wants and needs excessively experiencing maturation of innate ideas watching and imitating a model’s behavior pairing conditioned and unconditioned stimuli
*December 20, 2009*

**physics**

a sled slides down a frictionless hill. if the sled starts from rest at the top, its speed is 7.5 m/s. a.) on a second run , the sled starts with a speed of 1.5 m/s at the top.. will it end with less than 9 m/s, 9 m/s, or more than 9 m/s b.) find the speed of the sled at the ...
*December 2, 2009*

**social studies**

people who have the right to vote are called?
*December 1, 2009*

**fallacies**

I have 3 that I am not sure of: 1. In one of her columns, Abigail Van Buren printed the letter of “I’d rather be a widow.” The letter writer, a divorcée, complained about widows who said they had a hard time coping. Far better, she wrote, to be a widow ...
*November 24, 2009*

**fallacies**

“Andrea Keene’s selective morality is once again showing through in her July 15 letter. This time she expresses her abhorrence of abortion. But how we see only what we choose to see! I wonder if any of the anti-abortionists have considered the widespread use of ...
*November 24, 2009*

**HCR220**

Emergency Ambulance Transport & Extended Life Support QN
*November 2, 2009*

**HCR220**

Portable Home Oxygen Unit ?
*November 2, 2009*

**Math**

write in standard form the equation of each line: slope=3;(1,5)
*October 17, 2009*

**Psychology**

When writing a direct quote from the author word for word do you ident as the same for MLA style
*October 8, 2009*

**math**

WHEN YOU PUT TOGETHER UNEQUAL GROUPS YOU CAN ONLY ADD
*October 7, 2009*

**Chemistry**

For the reaction shown, compute the theoretical yield of the product in grams for each of the following initial amounts of reactancts 2Al(s) + 3Cl2(g) = 2AlCl3(s)
*July 12, 2009*

**English**

I would say organization.
*July 11, 2009*

**Math**

Is it reasonable to say that the answer for 63.11 lies between 60.10 and 65.15 To which number do you think the answer is closer?
*May 24, 2009*

**math**

an early flight lasted for 12 seconds. The plane flew 144 feet. what is the airplane's speed in ft/min?
*April 21, 2009*

**math**

an early flight lasted for 12 seconds. The plane flew 144 feet. What is the plane's speed in ft/s?
*April 21, 2009*

**Biology**

Produce a nucleotide sequence with a single base-pair substitution mutation that still produces the same amino acid sequence. Indicate the site of the mutation and explain why the amino acid sequence is not affected.
*March 15, 2009*

**7th grade science**

what is the experimental varriable?
*February 27, 2009*

**Chemistry**

What mass of ethylene glycol C2H6O2, the main component of antifreeze, must be added to 10.0 L water to produce a solution for use in a car's radiator that freezes at -23.3 degrees Celsius? Assume the density for water is exactly 1 g/mL
*January 18, 2009*

**Math algebra**

what is an exponent
*October 26, 2008*

**health**

define health
*October 5, 2008*

**art**

Give me two ancient arts
*September 18, 2008*

**math**

using coins from home, build a design with mirror symmetry on student sheet 5, Half and half. Then answer the following questions.Build side A of your design on one side of the sheet, hal and half. Amount of $ side a is worth and how much the whole design is worth?
*September 16, 2008*

**biology**

The diversity of chemical reactions occurring in a cell depends mostly on molecules present in the cells called?
*June 10, 2008*

**Science and acrostic poems**

i need an acrostic poem on rhythm
*May 27, 2008*

**statistics**

A maker of tires for cars has a multitude of data to support the fact that the lifetime of their tires follows a normal distribution with a mean of 42,100 miles and a standard deviation of 2,510 miles. Find the probability that a randomly selected tire will have a lifetime of ...
*May 9, 2008*

**Algebra**

Use the formula h= -16t^2+250t to model the height 'h' in feet of a model rocket 't' seconds after it has luanched. Determine when the rocket will reach a height of 900 feet.
*April 15, 2008*

**Stat help**

An article claimed that the typical supermarket trip takes a mean of 22 minutes. suppose that in an effort to test this claim, you select a sample of 50 shoppers at a local supermarket. the mean shopping time for the sample of 50 shoppers is 25.36 min. with a standard ...
*April 3, 2008*

**Statistics...help**

An article claimed that the typical supermarket trip takes a mean of 22 minutes. suppose that in an effort to test this claim, you select a sample of 50 shoppers at a local supermarket. the mean shopping time for the sample of 50 shoppers is 25.36 min. with a standard ...
*April 3, 2008*

**statistics help...please**

i have no idea! The real estate assessor for a country government wants to study various characteristics of single family houses in the country. A random sample of 70 houses reveals the following: the mean is 1759, standard deviation is 380 and 42 houses have central air ...
*April 3, 2008*

**religious studies**

Who was Jesus'most beloved desciple?
*February 15, 2008*

**Mathematics!**

The answer is one yard behind the starting line. This is so because if Yolonda runs 10 miles per 10 seconds and Yoko runs 9 miles per 10 seconds that means Yoko will need Yolanda to be 1 yard backwards.
*January 8, 2008*

**English**

Where should quotation marks be place in the sentence below? Study your spelling, said Dad.
*November 12, 2007*

**Managerial Economics/Math**

a copy company expand production. Is 20 workers sharp copiers. Two months ago, firm added copiers, output increases 100,000 pages day. One month ago, added worker, productivity increased 50,000 pages da
*October 3, 2007*

**14 line 10 syllable poem**

Example of a ten syllable line I want a dinosaur for my birthday. now break the sentence apart to ten syllables. I want a di no saur for my birth day. 1 2 3 4 5 6 7 8 9 10
*October 2, 2007*

**14 line 10 syllable poem**

I think this might help. I had to do this in college. Think back when you learned syllables as a kid. You took a word and clapped you hand to each syllable to figure out how many were in each word. Ex. School. As you say it,the word does not have a break in it any where so it ...
*October 2, 2007*

**chem please help**

how would you make a 4% percent paraformaldehyde solution? Work: starting from 20% (diluted with PBS) V1C1=V2C2 (100)(20)=(x)(4) x=500 so add 496 ml of PBS (accounting for 4% paraformaldehyde) or would you add 500ml of PBS Thank you
*September 16, 2007*

**chemistry**

how would you make a 4% percent paraformaldehyde solution? Work: starting from 20% (diluted with PBS) V1C1=V2C2 (100)(20)=(x)(4) x=500 so add 496 ml of PBS (accounting for 4% paraformaldehyde) or would you add 500ml of PBS Thank you
*September 16, 2007*

**american history please help very important**

I need to do very good on this and i have to find 4 events before ferdands murder that led up/contributed to the start of world war 1. And i have to give specific examples. Please help me out!!!! It would mean so much
*September 15, 2007*

**chemistry**

Too make a 4% solution of paraformaldehyde from a 20 % solution. C1V1=C2V2 (20)(10ml)= (4)(x) x= 50ml so I would need to add 45ml of PBS and 4ml of the paraformaldhyde. Is that right.
*September 9, 2007*

**chemistry**

I wanted to double check how to go about creating a 1% solution and a 4% solution. I know that it is 1 part to 99 and 4 part to 96. so I add 1ml of solution and then water and the same for the four percent. I wanted to know if you also had any good site to understand making ...
*September 6, 2007*

**dangling modifiers**

If your baby does not like cold apple juice, it should be heated. That isn't really a dangling modifier because "it should be heated" comes directly after "juice." However, to make the sentence clearer, you could say, Apple juice should be heated if ...
*July 13, 2007*

**spanish**

What is the tourism like in El Salvador? Thank you for using the Jiskha Homework Help Forum. Here are some sites for you to visit: 1. http://www.lonelyplanet.com/worldguide/destinations/central-america/el-salvador 2. http://www.puntamango.com/tours_cultural.asp 4. http://www....
*May 15, 2007*

**social studies**

Can someone please help me with this question?: What is the United States doing to improve Iraq's infrastructure? Trying to pay citizens there to rebuild it as fast as some of the other citizens destroy it. Guess who is paying? So, the US is paying citizens of Iraq to ...
*December 16, 2006*

**math**

Find the zeroes of the function y=3x^3-3x So I factored that to y=3x(x^2-1) but am not sure about the zeroes. I know that 0 and 1 are zeroes, but am not sure how to get a zeroe from x^2. Thanks. Factor it again to get 3x (x+1)(x-1) The zeroes are where any factor is zero, ...
*December 14, 2006*

**human physiology**

Acetylcholine is known to increase the contractility of smooth muscle. And norepinephrine is known to decrease the contractility of smooth muscle. Oxytocin is a hormone that causes uterine contractions. Correct? I did an experiment with a lab rat. We removed the ovaries and ...
*December 11, 2006*

**chem**

why do good oxidizing agents easily reduce? Good (strong) oxidizing agents are easily reduced. What you said I think differs slightly from that. If they are strong oxidizing agents, they easily oxidize other ions and in doing so the oxidizing agent is reduced. If this isn'...
*December 4, 2006*

**personal knowledge**

I was just wondering if it would make any difference if one were to use calcium bromide solution instead of sodium bromide solution. It depends on what you are using if for.
*December 3, 2006*

**English**

I need help finding action-packed words... and several other things cause the mid-term marks are gonna be tomorrow so I gotta boost my mark up before I fail... Action-packed verbs are those that are very specific and vivid -- that is, they give the reader a "living" ...
*November 8, 2006*

**word unscramble**

letlaw
*September 28, 2006*