Wednesday

October 26, 2016
Total # Posts: 833

**Ap Calc AB**

Find the equation of the line tangent to the curve at (5, -3) (x-2)^2 + (y+3)^2 = 9 I solved the derivative to be dy/dx = ((-2x+4)/ (2y+6)) when i plugged in the points (5, -3) I got the slope as -6/0...How is this possible?? How can i find the equation of this curve if the ...

*October 16, 2007*

**Ap Calc AB**

Determine (dy/dx) using implicit differentiation. cos(X^2Y^2) = x I'm really confused what to do now..i think the next steps are: d/dx [cos(X^2*Y^2)] = d/dx [x] = -sin(X^2*Y^2)* ((X^2*2Y dy/dx) + (Y^2*2X)) = 1 = -2YX^2 sin(X^2*Y^2) dy/dx + -2XY^2sin(X^2*Y^2) = 1 = -2YX^2 ...

*October 16, 2007*

**Physics**

A uniform steel beam of length 5.50 m has a weight of 4.50 103 N. One end of the beam is bolted to a vertical wall. The beam is held in a horizontal position by a cable attached between the other end of the beam and a point on the wall. The cable makes an angle of 25.0° ...

*October 9, 2007*

**Physics**

A uniform steel beam of length 5.50 m has a weight of 4.50 103 N. One end of the beam is bolted to a vertical wall. The beam is held in a horizontal position by a cable attached between the other end of the beam and a point on the wall. The cable makes an angle of 25.0° ...

*October 8, 2007*

**Physics**

thank you very much!!!

*October 8, 2007*

**Physics**

A uniform plank of length 5.1 m and weight 235 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support (see the drawing). To what distance x can a person who weighs 458 N walk on the overhanging part of the plank before it just begins to ...

*October 8, 2007*

**Physics**

hold on how do i find the mass of the planet?

*October 7, 2007*

**Physics**

A satellite has a mass of 5750 kg and is in a circular orbit 3.6 * 10^5 m above the surface of a planet. The period of the orbit is two hours. The radius of the planet is 4.20 * 10^6 m. What is the true weight of the satellite when it is at rest on the planet's surface? Ok...

*October 7, 2007*

**Physics**

Actually the answer i put up was correct. I was just shocked because the wheel seemed to be so small..but i guess the numbers made it true

*October 7, 2007*

**Physics**

well apparently fc = fs, and i got fs as 3.096 as correct...but then that means that r = (.003 * 100)/ 3.096 which is .096889m..this doesn't make sense

*October 7, 2007*

**Physics**

A stone has a mass of 3.0 10-3 kg and is wedged into the tread of an automobile tire, as the drawing shows. The coefficient of static friction between the stone and each side of the tread channel is 0.86. When the tire surface is rotating at 10 m/s, the stone flies out of the ...

*October 7, 2007*

**cell biology**

what are the types of carbohydates and the types of lipids.

*September 4, 2007*

**Physics**

Water from a garden hose that is pointed 29° above the horizontal lands directly on a sunbather lying on the ground 4.7 m away in the horizontal direction. If the hose is held 1.4 m above the ground, at what speed does the water leave the nozzle?

*September 4, 2007*

**Physics**

An airplane is flying with a velocity of v0 = 260 m/s at an angle of 30.0° with the horizontal. When the altitude of the plane is h = 2.0 km, a flare is released from the plane. The flare hits the target on the ground. What is the angle ?

*September 4, 2007*

**Physics**

A diver springs upward from a board that is three meters above the water. At the instant she contacts the water her speed is 8.80 m/s and her body makes an angle of 76.0° with respect to the horizontal surface of the water. Determine her initial velocity, both magnitude ...

*September 4, 2007*

**Physics**

A car drives straight off the edge of a cliff that is 50 m high. The police at the scene of the accident note that the point of impact is 140 m from the base of the cliff. How fast was the car traveling when it went over the cliff?

*September 4, 2007*

**Literature**

Can someone help me with this what is a tense or exciting moment in Oedipus Rex? What would also be a literary device or convention that the author use to develop such specific moment?I have read it over and over and I am having difficulty with it.

*September 4, 2007*

**Media**

Are there any Television programs that have primarily helped or hindered social and political life in the U.S.?

*September 4, 2007*

**math**

Ordinal numbers are what called in order therefore, the first couple of them would be: First Second Third Fourth FIth Sixth etc. so IF YOU HAVE: 00000 THIS WOULD BE FIFTH

*September 4, 2007*

**sorry!**

My apologies i did not see the continuation of postages. Thanks for helping me out in setting it up.....

*September 4, 2007*

**ms.sue**

I was woundering by any chance were you able to help me figureout how to set up the essay as an outline according to my assingment about the government being monopoly or oligopoly stuff. From yesterday postages?

*September 4, 2007*

**ms.sue**

thanks.

*September 3, 2007*

**ms.sue**

i seen that you wrote back and were looking thank you

*September 3, 2007*

**ms.sue**

Can i bother again to see if you can help me set up my paper so i can know what i should talk about in each paragraph so i do not loose myself. And hints towards what to talk about. In the previous postage.

*September 3, 2007*

**Search**

depending what type of information you are requireing about. If you have their number and want their address. Go to m_s_n etc. then go to the link white pages and it will direct you there.

*September 3, 2007*

**Physics**

When chasing a hare along a flat stretch of ground, a greyhound leaps into the air at a speed of 11.3 m/s, at an angle of 28° above the horizontal. (a) What is the range of his leap? (b) For how much time is he in the air?

*September 3, 2007*

**Physics**

Water from a garden hose that is pointed 29° above the horizontal lands directly on a sunbather lying on the ground 4.7 m away in the horizontal direction. If the hose is held 1.4 m above the ground, at what speed does the water leave the nozzle?

*September 3, 2007*

**Physics**

A person looking out the window of a stationary train notices that raindrops are falling vertically down at a speed of 8.2 m/s relative to the ground. When the train moves at a constant velocity, the raindrops make an angle of 62° when they move past the window. How fast ...

*September 3, 2007*

**history**

I need help to even start this paper with the required information but I've re-read the chapter and I am not understanding. Can someone help me make an outline to write out a good essay on this assingment with helping answering and understanding the correct way. Thank you ...

*September 3, 2007*

**history**

thank you.

*September 3, 2007*

**history**

tHE ACTUAL ASSINGMENT IS IN A PREVIOUS LINK

*September 3, 2007*

**history**

Can you help me set up the paper like an outline so i do not loose myself on what to talk about like help me organize it. THANKS

*September 3, 2007*

**history**

See i posted the required assingment in another post. But i am having trouble with it. My opinion is that I think that the government has many compies for many different radio stations depending on who promotes them. If the government only owned all radio stations then ...

*September 3, 2007*

**history**

I need help with these two question.And if you can help me understand them as well.thanks 1)Did the U.s. governmnet fostered monopoly or oligopoly ownership throughout radio's history. 2)What are some advantages and disadvantages of government-fostered ownership?

*September 3, 2007*

**Physics**

Well in Kinematics..theres 1 equations that is x= v0t + .5 (a)t^2 and that your equation can be simplified to that if the initial velocity is 0...we would get x= .5(a)t^2..this is to find the distance (displacement).

*September 3, 2007*

**Math**

1 is part of the problem. 1 and 2/5 divided by 21 The possible answers given are : a. 1/15 b. 1 2/105 c. 15 d. 29 2/5

*August 24, 2007*

**math**

yes, that is what we use in class instead of x when we are are on the computer.

*August 24, 2007*

**math**

Estimate 16 20/21*28 3/7 - 4 13/25 + 8 2/47 as a whole number or as a mixed number whee the fractional part is 1/2. a. 452 b.480 c.488 d.492 1/2 I would say the answer is c - 488. Would that be right?

*August 24, 2007*

**literature**

My question is in the story "young goodman brown", by Nathaniel Hawthorne. can someone give me an example of a literary device and how the author used it. I have to come up with at least nine of them but I can't start because i am not understanding. I looked up ...

*August 21, 2007*

**mass media**

Thank you if anyone could help me with the previous posts. If you are taking a course in mass media, surely you have a textbook or have been referred to particular websites or reference databases via your school's library. If the above is not true, it looks as if what you ...

*August 19, 2007*

**mass media**

what is today's publishing conglomerates and the organization of todays'publishing industry? Please note that we don't do students' homework for them. Our tutors try to give you the information to help you complete your assignment on your own. If there's ...

*August 19, 2007*

**mass media**

what are pre-book manuscripts and what is the early publishing houses? Pre-book manuscripts are the hand-written or typed (word-processed) pages of an author's books before it's been edited by the publisher. Check these sites for early publishing history. http://www....

*August 19, 2007*

**mass media**

what are some groups and individuals who have had and not had access to information because of its control pre-book manuscripts?

*August 19, 2007*

**mass media**

what is the controlled ownership and distribution of publications throughout history?

*August 19, 2007*

**mass media**

what is the organization of the publishing industry? I don't know if such a question can be definitively answered, but here are plenty of websites with some information on various facets of the industry. You should be able to draw conclusions and come up with your own &...

*August 17, 2007*

**mass media**

what is the control of information from prebook manuscripts to the formation of early publishing houses to the evolution of todays'conglomerates ? who has had and who has not had access to printed information? Check this site for a brief outline of publishing history. http...

*August 17, 2007*

**mass media**

who determines what will be printed and how access to information limited with mass production of books? Publishers determine what they will publish. Their decisions are usually made on the basis of what will earn them a profit. In other words, publishers reject books that ...

*August 17, 2007*

**Literature**

what does it mean: literary journal The term "literary journal" can mean two things, I think. 1. A magazine or journal that is published and focuses only on literary works, current and past. http://www.google.com/search?q=literary+journal&rls=com.microsoft:en-us:IE-...

*August 17, 2007*

**Literary**

what does this mean the definition: Word: "anapest" definition: three syllables with third stressed: a metrical foot of three syllables with the stress on the third syllable, or of two short syllables followed by a long syllable. The word "unconcerned" and ...

*August 17, 2007*

**Literature**

what are some methods towards writng about literature? Be sure to add all of these to your Favorites or Bookmarks: http://grammar.ccc.commnet.edu/grammar/composition/literature.htm from: http://grammar.ccc.commnet.edu/grammar/ http://leo.stcloudstate.edu/catalogue.html#types ...

*August 16, 2007*

**mass communication**

what is the effect that mass production of books has had on: a) individuals Mass production of books have enabled more people to read. Before books were affordable, people relied on their memories to recall stories and events. But books have enlarged their worlds so that we no...

*August 16, 2007*

**literature**

What literature would be considered to be part of the United States CURRENT literary canon. You asked this question yesterday and I'll give you the same answer: There is not one magic list. It doesn't exist. http://www.jiskha.com/display.cgi?id=1187126651 http://www....

*August 15, 2007*

**literature**

What is a good definition or meaning of linterary canon. I've read the definition in different books but i am still confused what does it mean. I need help understanding it and memorizing it. http://www.answers.com/topic/canon-fiction Scroll down and read about canon (...

*August 14, 2007*

**Literature**

What literature would be considered to be part of the United States' current literary canon? There are so many, it's hard to name just one!! http://en.wikipedia.org/wiki/American_literature Here is an article about American Lit, with links to many, many titles and ...

*August 14, 2007*

**math**

Hello tutors by any chance is there anyone who can assit me with theprevious problems that i posted..dealing with math subject Here is a website explaining how to invert a 3x3 matrix. http://www.everything2.com/index.pl?node_id=1271704 Many steps are involved and I cannot show...

*July 22, 2007*

**math,help**

can someone explain to me this one as well step by step...thanks Problem #2 Solve the matrix equation AX=B for X by finding A to power. A= 2_-1_3 -3_4_-5 -4_0_6 b= 9 6 -9 Solution is: 5.43 8.22 2.12

*July 22, 2007*

**math help**

Can someone explain to me the following step by step , i 've looked in websites , plus the book and i want to understand how this problem has this answer. Problem #1 Find the inverse if it exists, for the matrix. -2_1_3 3_-1_0 -4_2_0 Answer is: -4_6_5 -8_12_13 2__0__-1 ...

*July 22, 2007*

**math, algebra II**

Can someone explain to me step by step how the book got to this answer i want to understand the steps....thanks Find the inverse, if it exists,for the matirx (*I used the underscore to separate the numbers within the matix) -2_1_3 3_-1_2 -4_2_0 the answer is: -4_6_5 -8_12_13 ...

*July 22, 2007*

**math,help**

how do i set this up...i need help in the set up... In deciding whether or not to set up a new manufacturing plant, analysts for a popcorn compnay ave decided that a linear function is a reasonable estimation for the total cost c(x)in dollars to produce x bags of microwave ...

*July 18, 2007*

**math, correction**

A cable tv company charges $50 for the basic service plus $10 for each movie channe. Let C(X) be the total cost in dollars of subcribing to cable tv, using x movie channels. write a cost function for the problem. what i think it is: c(x)= 50 + 10x That looks ok to me.

*July 18, 2007*

**measuring**

well this is what i need i am baking but i need 6cup of buttercream icing. And i found a website that sells it made but it says that the container size and has 3.5LB of it...so would one container be enough or should i buy two..thats why i am not sure about the exact amount i ...

*July 17, 2007*

**measuring**

how much is 6 cups to pounds.... That depends upon whether you're measuring something heavy, like lead pellets, or light, like feathers. Volume measures (cups) don't have equivalent weight (pounds) measurements. If you're measuring a food (apples, peaches, flour, ...

*July 16, 2007*

**MATH, HELP**

what is the probability that at least 2 students in a class of 36 have the same birthday? Do i punch this in to the calculator or how did you found this way or method for your solution: Log(365!) = 1792.3316 Log(329!) = 1581.7202 36 Log(365) = 212.3963 And therefore: 365!/[(...

*July 16, 2007*

**math**

round result to two decimal places...the answer i have is: 7.023 so two decimal places would it be: 702.0 You're asked to round to two decimal places. 7.023 = 7.02. Your answer has only one decimal place. so i guess my answer is wrong then...so what do they mean by two ...

*July 15, 2007*

**math**

rounding to the nearest tenth to 242.35 the answer would be: 242.40 we round up the 3 because a 5 is next to it...? Yes. We round up when the next digit is 5 or more. Minor correction -- Rounding to the nearest tenth, your answer is 242.4 -- not 242.40. okay thank you...

*July 15, 2007*

**math ,correction**

consider determining how many possible phone numbers are in an area code (repeated numbers allowed) is this a combination, permutation or neither.... my answer neither combination. combination. wouldn't it be neither because we are allowed to use repeated numbers.......

*July 15, 2007*

**math, help**

I need help or hint on the setup: what is the probability that at least 2 students in a class of 36 have the same birthday? This is 1 minus the probability that all students have different birthdays. Suppose that the birthday of a student is completely random. Then we can ...

*July 15, 2007*

**math, help**

For this one i have no idea what formula or even how to set it up... Tow 6-sided dice are rolled. What is the porbability that the sum of the two numbers on the dice will be greater than 9? Notation: n1 is the number that die 1 shows, n2 is the number that die 2 shows. Then we...

*July 15, 2007*

**math,correction&help**

the problem asks: a bag contains 5 aplles and 3 oranges. If you select 4 pieces of fruit without looking, how many ways can you get exactly 3 apples? so i did: "c"=stands for combination (5C3) =10 (3C1) = 6 so i multiplied 10*6 = 60 ways possible It seems to me it is...

*July 15, 2007*

**math,help & correction**

the question asks: How many 5-card poker hands consisting of 2aces and 3 kings are possible with an ordinary 52-card deck? this is what i did: "c"=stands for combination (4C2) * (4C3) = 6*4 = 24 (52C5) = 259860 so then i divided : (24)/(259860)= 9....

*July 15, 2007*

**math,help**

a company is taking a survey to find out whether people like its product. Their last survey indicated that 70% of the population like the product. based on that, of a sample of 58 people, find the probability of the following. a) all 58 like the product. for this do i do: 0.70...

*July 13, 2007*

**Math, help**

I need help what formula would i use or what steps do i take? A professor gives a test with 100 true-false questions. If 60 or more correct is necessary to pass, what is the probability that a student will pass by random guessing? The brute force way of doing this is add up ...

*July 13, 2007*

**math,help**

what formula or how do i solve for this: How many 5-card poker hands containing of 2 aces and 3 kings are possible with an ordinary 52-card deck? (4*3*2)/3! combinations of three kings x (4*3)/2)combinations of two aces = 24.

*July 13, 2007*

**math ,correction**

Is this correct? consider determining how many possible phone numbers are in an area code (repeated numbers allowed) Is this a combination, a permutation, or neither? I think it would be a combination wouldn't it? Since there are ten number possibilities in each of the ...

*July 13, 2007*

**math,correction**

Find expected value for the random variable. its suppost to be a table 6 X 2 i used the .... to represent separation z.....3......6.....9.....12.......15 p(z)..0.14..0.29..0.36..0.11...0.10 So what i did is i said e(x) = 3 (0.14)+ 6(0.29)+ etc to all the rest. and my result ...

*July 13, 2007*

**bobpursly**

thank you for all your help that your doing and all the other tutors....

*July 13, 2007*

**math, help**

What is a situation where the mode is the best average to use to describe data. If you are hunting deer, which location would you hunt in? The mode location, or somewhere else? do you mean that the mode would be like a pin point area of where is the best location? The mode ...

*July 13, 2007*

**math ,correction**

is this right? Find the standard deviation to the given data. The manager of a small dry cleaner employs six people. As part of their personnel file, she asked each one to record to the nearest one-tenth of a mile the distance they travel one way from home to work. THe six ...

*July 13, 2007*

**math ,correction**

Is this correct..... Solve the problem. Round to the nearest hundredth, if necessary the following data gives the number of appliaces that applied for a job at a given company each month of 1999: 64,67,94,76,78,82,87,88,90,73,64. What is the mean of the data. once again i ...

*July 13, 2007*

**math correction**

heres another problem can someone correct it for me... find the median of: 8,10,26,23,31,34 This is what i did i place them in order from smallest to larger number then i made both sides equal so then i am left with two numbers in the middle wihich would be 23 and 26 so i ...

*July 13, 2007*

**math,correction**

can someone correct me please... Find the mean. Round to the nearest tenth. *its a table with 2colums and 5 rows: */* = this is used for separation of columns: value / frequency 146/3 216/2 257/3 278/4 320/2 This is what i did i did a third column and whats in it is the value ...

*July 13, 2007*

**math,correction**

can someone correct me on this: Find the mean for the list of numbers: 79, 40, 79, 98, 40(round to the nearest tenth) this is what i did: I added all the numbers then divided by the amount so it would be: 336/5 = 67.20 i don't round further i leave it as is: correct.

*July 13, 2007*

**math. algebra 2**

I need help with this problem I do not understand how to solve this kind of problems....can someone show me and explain it to me thanx. Find a Z-score satisfying the given condition: 82.9% fo the total area a is to the left of z. http://www.fourmilab.ch/rpkp/experiments/...

*July 13, 2007*

**statistics, help**

Can someone help me which way can I approach this problem. A hint of a formula or anything would be helpful... Life of Light Bulbs A certain type of light bulb has an average life of 500 hours, with a standard deviation of 100 hours. The length of life of the bulb can be ...

*July 10, 2007*

**statistics, math,drwls**

Is there a website where i can find the information you provided further because i am still not understanding towards what you mean.....thanks i'll appreciated it... My question is in statistics under what circumstances would the mode be an appropriate measure of central ...

*July 10, 2007*

**Statistics,math**

My question is in statistics under what circumstances would the mode be an appropriate measure of central tendency? Whenever you expect a "normal" Gaussian distribution and have a large number of measurements. In that case the "mode" or most frequently ...

*July 9, 2007*

**math, help**

How did they solved this problem i got this one wrong on my quizz. Pizza Varieties A television commercial for Little Caesars pizza announced that with the purchase of two pizzas, one could receive free any combination of up to five toppings on each pizza. The commercial shows...

*July 6, 2007*

**math, bobpursley**

so how did you say to do part c c) if there is 2 woman and 5 men in the group, how many delegations would include at least 1 woman? would it be the answer to part a minus the number of 2 man pairs which will give me: 21 - 5combination 2 = 21-10 = 11 Ooops, you are right. 7!/5!...

*July 6, 2007*

**math correction**

can someone correct this problem for me thanks A group of 7 workers decide to send a delegation fo 2 to their superviosr to discuss their grievances. a) how many delegations are possible? my answer: 21 b)If it is decided that a particular worker must be in the delegation, how ...

*July 6, 2007*

**math , correction**

#1 A menu offers a choice of 3 salads, 8 main dishes, and 5 desserts. How many different meals consisting of one salad, one main dish, and one dessert are possible? My answer: 120 mealks possible #2 An uto mobile manufacturerr produces 7 models, each available in 6 different ...

*July 6, 2007*

**math,correction**

can someone correct this for me parts A-E and if i am wrong can you help me....please How many 7-digit telephone numbers are possible if the first digit cannot be zero and..... a) only odd digits may be used? my answer: 8125 b) the telephone number must be multiple of 10(that ...

*July 6, 2007*

**MATH**

Can someone give me an example of decribing a real-life situation where I can use the pascals triangle to be used to calculate probability. One example is provided here: (Broken Link Removed) I cannot log on to the website you provided

*July 3, 2007*

**math**

How can one calculate the odds of winning the jackpot in the lottery. The probablity is the number of ways to win (usually one) divided by the number of possible entries.

*July 3, 2007*

**math117**

The area of a rectangle of length x is given by 3x2 +5x. Find the width of the rectangle. The area of a rectangle with width t is given by 33t - t 2. Factor the expression and determine the length of the rectangle in terms of t length times width=area, so factor out an x to ...

*July 2, 2007*

**math,help**

what formula do i use for the following problem: which of the following investments is larger after 19years? a) $7500 is deposited annually and earns 4.5% interest compounded annually. b)$600 is deposited monthly and earns 4.5% interest compounded monthly. Does he deposit the ...

*June 30, 2007*

**Math, Help**

I am lost with these two problems... Problem #1 Write a sample space for the given experiment A box contains 3 blue cards numbered through 3, 4green cards numbered through 4. A blue card is picked , followed by a green card. Problem #2 Write the indicated even in set notation ...

*June 29, 2007*

**math,orrection**

is this correct now.. Problem #1 Find the simple interest assume a 360-day year. Round result $17000 at 9%for 119 days. answer: 5619.44

*June 29, 2007*

**math,help**

what formula do i have to use for this problems. Problem #4 John Lee saving account has a balance of $2449.After 7years what will be the amount of interest be at 8% compounded semiannually? Problem #5 Southewest Dry cleaners believes that it will need new equipment in 5 years ...

*June 29, 2007*

**math correction**

I had asked on these problems previously but here is my final answers are they correct now... Problem #1 Find the simple interest assume a 360-day year. Round result $17000 at 9%for 119 days. My answer: 504.90 Problem #2 Find compund amount for the deposit. Round to the ...

*June 29, 2007*

**math,correction**

can someone correct these for me thanks.. Problem #4 Find the effective rate corresponding to the given nominal 18% compounded quarterly. My answer: 19.2% Problem #7 Find the future value of the ordinary annuity If R= $2500,I=5% interest compounded quarterly for 16 years. My ...

*June 29, 2007*