Friday

September 4, 2015
Total # Posts: 39

**biochemistry **

What happens if I try to make a pH 6 buffer by diluting 0.100 M HCL (aq) with water .
*November 23, 2014*

**physics**

The pilot of an airplane wishes to fly due north, but there is a 71 km/h wind blowing toward the east. (a) In what direction should the pilot head her plane if its speed relative to the air is 314 km/h? ° west of north Should the angle just be the opposite of the one ...
*September 10, 2014*

**physics**

A car has an initial velocity of 20 m/s to the right, 17 seconds later it is seen to be moving at 46 m/s to the left. WHAT DISTANCE DID IT TRAVEL? Does the 17 seconds include the initial 20m/s? If not, how do I find the other distance. If so... What do I do. Sorry I am in a ...
*August 30, 2014*

**physics**

A ball is dropped into a well. A splash is heard 43 seconds later. The speed of sound (the speed at which sound travels through the air) is 345 m/s. HOW DEEP WAS THE WELL? I don't even know which equation to plug this into. At first I just tried s=d/t-> 345=d/43, but ...
*August 30, 2014*

**Office Finances**

What must a depositor add to check before the bank will accept it for deposit?
*April 25, 2014*

**Phyiscs-Energy conservation**

An escalator in a shopping centre carries people up through a height h at a vertical speed of v, but you’re in a hurry when you step onto it, so you climb the moving steps (each with a height of h ) at a rate of n steps/s. Determine: 4.1 the amount of chemical energy ...
*April 22, 2014*

**math**

the sides of a triangle are xcm,x+3cm and 10cm.if x is a whole number of cm,find the lowest value of x
*March 2, 2014*

**math**

A hot dog vendor at the zoo recorded the average temperature and the average number of hot dogs she sold. The equation for the line of best fit for this situation is shown below. Based on the line of best fit, complete the following statements. The expected number of hot dogs ...
*February 28, 2014*

**physics**

V/4
*September 22, 2013*

**chem**

Suppose you have two 100mL graduated cylinders. In each cylinder, there is 36.0mL of water. You also have two cubes: one is lead, and the other is aluminum. Each cube measures 3.00cm on each side. After you carefully lower each cube into the water of its own cylinder, what ...
*September 6, 2013*

**Math Ms. Sue**

yes it is. can you help me?
*November 19, 2012*

**Math Ms. Sue**

What is the slope of the line that passes through (3/5,-2)(-6,2/9)? I don't even have a good guess at this one. Thanks.
*November 19, 2012*

**algebra**

If you are looking at a graph of a quadractic equation, how do you determine where the solutions are?
*February 15, 2012*

**algebra**

sorry here it is... The 1st part of the trip the canoeist travels 60 miles at a certain speed. On the second part, he travels 18 mi at 5 mi slower. The total time is 3 hours. What was the speed on both parts of the trip??
*February 11, 2012*

**algebra**

Quadratic equations can be solved by graphing,using the quadratic formula, completing the square, and factoring. What are the pros and cons of the methods. when would each be appropriate?
*February 7, 2012*

**algebra**

The square root of 9x+81 = x+5 The square root is that funny looking division sign over 9x+81
*February 2, 2012*

**algebra**

what is a pythagorean theorem? How is it used?
*February 1, 2012*

**algebra**

after solving a rational equation, why is it important to check your answer? How is this done? What happens if you are checking a solution for the rational expression and find that it makes one of the denominators in the expression equal to zero?
*January 26, 2012*

**math**

So does he use 42 or 1.4? Ms. Sue?
*January 19, 2012*

**math**

Scott uses 42 tanks.
*January 19, 2012*

**algebra**

how is doing operations, adding, subtracting, multiplying and dividing with rational expressions similiar to or different from doing operations with fractions? When would this be used in real life?
*January 12, 2012*

**algebra**

Take any number other than 1. Square that number and then subtract 1. divide by one less than your original number. now subtract your original number. you should end up at one. how does this work?? Rewrite and use a variable instead of and actual number and rewrite the problem...
*January 10, 2012*

**algebra**

suppose a market research company finds that a price of p=$22, they would sell x=42 tiles each month. If they lower the price to p=$12, then they would purchase the tile and they can expect to sell x=52 tiles in a month. Find the equation of the line for the demand equation. ...
*January 8, 2012*

**Physics**

sorrry i donno
*September 28, 2011*

**Math**

Write a rule for each linear function x--4,-2,0,2 f(x)-4,2,0,-2
*February 13, 2011*

**Math**

Calculate the monthly payment by loan amortization table Loan $26,000 Down payment $5,000 11% 36 Months
*December 7, 2010*

**Medical English essay**

I have to write an essay on 8 questions which are listed in my essay. Each paragraph is to contain an answer for each question using MLA I need an introduction 4 body sentences and a conclusion. Please check my work,my citing and any information on the works cited page would ...
*October 31, 2010*

**Penn Foster**

I am working on the same paper use your opinion 5.07 it has all of the information. then google each question in different word combinations and follow the links. so far I have found enough information for the first two questions. Also use the books you received for ...
*October 20, 2010*

**english**

I am required to write 2 different paragraphs for a Penn Foster Assignment. In paragraph 1 I am to bring a polished paragraph on what inspired me to choose my career and why. The second paragraph is about an e-mail to my cousin about a job opening she usually would not ...
*September 3, 2010*

**chemistry**

to increase therate of solvation of carbon dioxide, what must a scientist consider? should they decrease the temp and increase the pressure, or vice versa?
*March 31, 2010*

**chemistry**

to increase therate of solvation of carbon dioxide, what must a scientist consider? should they decrease the temp and increase the pressure, or vice versa?
*March 31, 2010*

**chemistry**

1gm of AgNO3 is dissolved in 50ml of h2o. it is titrated with 50ml od sol. agi is precipitated is filtered of.the exces of ki is then titrated with 1/10M KIO3 in the presence of acidic medium until all I->>ICl. it reqires 50ml of the 1/10M KIO3 sol. 20ml of same KI sol ...
*March 28, 2010*

**litature**

Need assistance with lit class checkpoint for week 8 rough draft of final paper for A raisin in the sun and the lottery Lit/210 wk 8
*January 16, 2010*

**Science**

We did a refraction lab and we used a semi circular prism and through it we shot a light beam in order to find the angle of refraction. Why is it that we used a semi circle and not perhaps a per circle or some other kind of prism? Thanks :)
*September 13, 2009*

**How does a pager work?**

Thanks :)
*November 9, 2008*

**How does a pager work?**

I understand that it's like a beeper. But do you pay per month or is it lke once you've bought one and a number for it, you don't have to pay anymore?
*November 9, 2008*

**Journalizing Accounting**

How do I journalize this on my manual form? Sold DJ service on account to JJ's Dance Club, $500.00. S2. Homework
*August 23, 2008*

**Math**

What is the formula to figure the radius of the following: 50 feet of wire how do you figure the circumference and the radius
*May 8, 2008*

**Critical Thinking 205**

where to find help with review quizzies questions
*June 21, 2007*

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