# Posts by Patrick

Total # Posts: 750

**Pre Calc.**

Use the sum or difference identity to find the exact value of sin255 degrees. My answer: (-sqrt(2)- sqrt(6)) / (4) Find the value of tan (alpha-beta), if cos alpha= -3/5, sin beta= 5/13, 90<alpha<180, and 90<beta<180. My answer: -33/56 Which expression is ...

**math**

can i get a link containing a list of the theorems and postulates of a 2 column geometry proof?

**math**

In a coordinate plane, what is the total number of points 5 unita from the origin and equidistant from both the x and y axes? 1)1 2)2 3)3 4)4

**Pre cal.**

Determine the linear velocity of a point rotating at 25 revolutions per minute at a distance of 2 feet from the center of the rotating object. Give answer in feet/sec/ 25/60 = 5/12 revs per second Convert rev per second to rad/sec 5/12*2*pi = 2.618 rad/sec at a distance of 2 ...

**Pre Cal.**

Given that x is an integer between -2 and 2, state the relation represented by the equation y = 2-abs(x) by listing a set of ordered pairs. Then state whether the relation is a function. I think it's: (-2,0) (-1,1) (0,2) (1,1) (2,0)

**Physics - Waves**

So the answer is 400(345.8/340.8) = 405.87 Hz?

**Physics - Waves**

So the answer to the first question is 394.3 Hz and the answer to the second question is 400 Hz?

**Physics - Waves**

My thinking is: f2=f1(V/V+Vs) f2=Heard frequency=394.3 Hz f1=Source frequency=400Hz V=velocity of sound in medium=332+0.6(23)=345.8 m/s Vs=velocity of source=5 m/s I'm not sure about the second question, though.

**Physics - Waves**

A speaker which produces a frequency of 400 Hz is moving away from an observer and towards a wall at 5 m/s when it is 23 degrees Celsius. What is the frequency of the sound that travels back to the observer? What is the frequency of the sound that travels forward and bounces ...

**Algebra**

I think I have the correct equation, but can someone please double check and tell me if I am correct. Scenario: Suppose that the width of a rectangle is 5 inches shorter than the length, and that the perimeter of the rectangle is 50. Question: Set up an equation for the ...

**math**

Louise is 8 years old now

**AP U.S History "American Pageant" Series**

I congratulate you for your confidence that although you do not already understand the material in this course, you eventually will learn much more through the process of TRYING to learn and understand. You WILL learn more by trying to learn more, and that's what education...

**english composition**

Watching horror movies is a way of feeding our inner insanity and bave our nightmares.

**music-buddy holly**

i`m doing a school projrct about buddy holly ive looked in the site drwls suggested but i can`t find much info or many pictures . any ideas thanks

**chemistry**

how do you do the conversion?

**chemistry**

convert 5.98 x 10 to the 24th kg. to mg.

**Geometry**

Next 2 in the pattern M,V,E,M,...

**Finance**

The Victoria Nursery, which provides facilities for pre-school children on a commercial basis, is preparing its cash budget for next year. A profile of the estimated revenues and expenses for the first four months of the year is as follows: Jan Feb Mar Apr £ £ &...

**Analysis & Design**

How can a project manager be sure that he or she has chosen the correct metrics to assess project performance? I need a few examples please.

**Algebra**

How can you determine if two lines are perpendicular?

**math**

Write equation of line given 2 points (1,4) (8,-10)

**algebra**

When thrown into the air from the top of a 50 ft building, a ball’s height, S, at time t can be found by S(t) = -16t^2 + 32t + 50. When t = 1, s = -16(1)^2 + 32(1) + 50 = 66. This implies that after 1 second, the height of the ball is 66 feet. When t = 2, s = -16(2)^2 + ...

**Business**

I wasn't asking for it to be done for me i just wanted someone to explain it to me. So I could get a better understanding of the subject

**Business**

Explain the methods governments use to promote and restrict international trade.

**algebra**

this is what I came up with for my monitor is this right or did I do it wrong. a^2 + b^2 = c^2 13*2+10*2 = c^2 26+20= c^2 46=c^2 46=√(c^2) 6.78= c

**algebra**

ok thank you know if you could break it down to me where i can do it own my owe that would be great. because, i do not know how to do algebra at all.and i'm taking a college corse it which i have to pass.

**algebra**

figuring out if my monitor is 13inch by 10 half inch. how do i put that into what i'm ask to do?

**algebra**

In your post, include the height, the width, and the calculations needed to determine the length of the diagonal of your computer monitor. After you have calculated the approximate length using the Pythagorean theorem, use a measuring device to measure the length of the ...

**algebra**

the height of your computer monitor to the nearest tenth of a centimeter or sixteenth of an inch. Measure the width of your monitor as well. Use the Pythagorean theorem to find the length of the diagonal of your monitor. In your post, include the height, the width, and the ...

**algebra**

A tennis club offers two payment options: Option1: $35 monthly fee plus $4/hour for court rental Option 2: No monthly fee but $6.50/hour for court rental. Let x = hours per month of court rental time. a) Write a mathematical model representing the total monthly cost, C, in ...

**Romeo and Juliet**

i need to no how romeo and juliets parents reacted to there deaths? asap

**Economics**

Suppose that a small open economy begins to use credit cards, starting from monetary equilibrium, allowing households to hold more of their wealth in interest bearing assets. Discuss the effect on real and nominal money supply, foreign-exchange reserves given: A) Fixed ...

**math**

Bill is 2 years older than ted (1) b = t + 2 where b = bill's age TODAY and t = ted's age TODAY In 5 years 5 times ted's age will be 4 times bill's age: (2) 5(t+5) = 4(b+5) Put equation (1) into (2) for b. 5(t+5) = 4(t+2+5) ==> 5t+25 = 4t+28 solve for t to ...

**Math repost for Justin**

draw the lines like this \// /X/ //\ one diagonally down from left to right and the other 3 from right to left connecting all rows possible.

**Math, Still Need Help!**

S=150 and A=250 S+A=400 A=400-S 2S+3(400-S)=1050 Solve for S S=150 Plug back in top equation A=250

**prealgebra**

y=7-3x

**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+.5q2^2-5q1q2 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...

**PRE-ALGEBRA**

H=F/5G

**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 and p2=A-.05q2 a=17...

**Math**

X=-30

**AP Chemistry**

(a)calculate the mass percent of carbon in the hydrated form of the solid that has the formula BeC2O4 X 3 H2O (s). I divided 24.02 g by 151.08 g and got .16, or 16%. is that correct? Also, I'm having trouble with this follow up question. When heated to 220 degrees C, ...

**Finance**

What are some methods used to compare the financial condition of a competing organization?

**chemistry**

10.0 moles of NH3 and 10.0 moles of H2 are introduced into a 1.00 L flask. At equilibrium, 3.0 moles of NH3 gas remain. Calculate Kc for this reaction. N2(g) + 3H2(g) < > 2NH3(g) sorry i forgot to say show all the work please! We usually don't do the whole problem. ...

**cultural diversity**

How do you think slavery influenced the evolution of both Black and White America today? Consider the following in your answer. One, if slavery did not exist in the US then the black population would probably be significantly lower today. Two, without slavery there would have ...

**science**

Which provides more cooling for a Styrofoam cooler, one with 10lb of ice at 0C or one with 10lb of ice water at 0C? Explain your reasoning. 10# ice requires heat to melt the ice + heat to heat the water after it melts. 10# ice water requires heat to heat the water. Which do ...

**Government (Jury)**

I was wondering why we have a jury system for courts? Please respond. http://www.19thcircuitcourt.state.il.us/bkshelf/resource/origin.htm =) Thanks.

**Psychiatry**

As a consumer of psychiatric services, I have never heard of an unemployed psychiatrist. It is very difficult to get an appointment with a psychiatrist because there is such high demand for their services relative to the number who are trained and enter the practice. Meanwhile...

**BIOLOGY (DNA)**

Why does DNA have the consistancy of thick syrup or mucus? because of all of the different substances

**3mts**

Can someone please let me know what these mean; 3 MTS - C, F and K and this one too 2 L in a SP of G Please and thank you so much for your help:) 3 major temperature scales - celsius, fahrenheit and kelvin 2 lenses in a standard pair of Glasses

**social studies**

what is consumer awareness and its need? Please tell us what you think consumer awareness and its need is. Then we'll be glad to critique your answer.