Sunday

September 25, 2016
Total # Posts: 25

**math**

a searchlight is shaped like a paraboloid of revolution. if the light source is located 5 feet from the base along the axis of symmetry and the opening is 8 feet across, how deep should the searchlight be?

*April 13, 2014*

**Chemisty**

Hydrocarbons are important fuel that we burn for many different reasons. a. what is a hydrocarbon? b. rank these hydrocarbons by the number of carbons the contain: propane, methane, butane, octane, ethane.

*March 11, 2014*

**chemistry**

.30 g

*February 3, 2013*

**math**

what is the missing number in the following sequence: 13,7,18,10,5,?,9,1,12,6 Thanks

*December 10, 2012*

**physics**

How did you come up with 4.9t^2?

*October 22, 2012*

**math**

State the quadrant in which the terminal side of each angle lies. 1) 11pi/4

*October 17, 2012*

**Physics**

After a shipwreck, a solid steel spoon lies at the bottom of the ocean, 5.75km below the surface. What's the water pressure at that depth? Find the fractional volume change in the spoon due to compression forces.

*December 12, 2011*

**Pre-Calc**

Thank you-I viewed the youtube-that was really helpful and I did use Wolfram as you suggested. I even checked some of my other problems

*September 12, 2011*

**Pre-Calc**

I know about Descartes Rule but I don't really get how to figure this out-Please check my answers- I don't get this one find number of possible positive and negative real roots of f(x) = x^4-x^3+2x^2 + x-5 I think there are 3 sign changes so there are 3 positive but I ...

*September 12, 2011*

**Pre-Calc/Trig**

Please check the first and help with the second-thank you Find all possible rational roots of f(x) = 2x^4 - 5x^3 + 8x^2 + 4x+7 1.I took the constant which is 7 and the leading coefficient which is 2 and factored them 7 factored would be 7,2 2 factored would be 2,1 used 7 as ...

*September 12, 2011*

**math**

thanx ms.sue it really help me solve the answer

*June 15, 2011*

**math**

the difference of two numbers is 5. their product is 176. what are the numbers ? i've been trying to figure this out for a while and can't come out with the right answer.

*June 15, 2011*

**science**

nothing

*May 25, 2011*

**Chemistry**

The temperature of 100.0g of water initially at 25.0 degrees C in a calorimeter increases to 30.0 degrees C after adding a 20.0g piece of hot aluminum. What was the temperature of the aluminum before adding it to water? The specific heat of water and aluminum is 4.182J/g and ....

*February 22, 2011*

**Math**

4700 is borrowed at a rate of 16% interest per year, compounded quarterly. Find the amount due at the end of 4 years

*November 30, 2010*

**college/Public Speaking**

Elision is the omission of one or more sounds (such as a vowel, a consonant, or a whole syllable) in a word or phrase, producing a result that is easier for the speaker to pronounce. Sometimes, sounds may be elided for euphonic effect. Elision is normally unintentional, but it...

*October 5, 2010*

**college/Public Speaking**

New channels of speaking New forms of communication, such as e-mails, chats, and bulletin boards, have created a channel of delivery that is quite different from formal speech. This unique requirement for speed has caused the standard rules of the English language to be ...

*October 5, 2010*

**college/Public Speaking**

What might be some modern examples of speech styles that weren't discussed in the lecture? Don't think just in terms of public speaking. Consider such elements as how technology has changed communication in the last few years. Defend why you consider these to be modern...

*October 5, 2010*

**algebra**

if i have 16 coins they total $1.oo thaey are all dimes & nickels how many of each do i have

*April 27, 2010*

**science**

when diamonds are shipped to jewlary stores why are they individually wrapped in paper?

*April 19, 2010*

**Chemistry**

Calculate the final temperature (once the ice has melted) of a mixture made up initially of 75.0 ml liquid water at 29.0 degrees C and 7.0 g ice at 0.0 degrees C.

*February 26, 2010*

**Literature**

have you read the book The Rag and Bone shop?

*December 28, 2008*

**s.s**

how old was Mr.Lincoln when he was marderd?

*May 13, 2008*

**physics-drwls!!!!**

I can't seem to make the quadratic equation work when i put in that equation...help!

*September 7, 2007*

**physics**

You jump from the end of a diving board that is 3 meters above the water. You spring upward from the end of the board with an initial velocity of 5 m/s. How long are you in the air? What is the speed as you hit the water? I need to know the steps in solving the problem. Thanks!

*September 7, 2007*

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