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March 5, 2015

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maths
determine the first three terms of the erithmetic progression of which the 7th term is 3 and the 12th term is -3?
Thursday, January 22, 2015 at 7:09am

phyisics
a cart of weight 25N is released at the top of inclined plane of length 1m, which makes an angle of 30° with the ground .it rolls down the plane and hits another cart of weight 40N at the bottom of the inclined plane. calculate the speed of first cart at the bottom of the ...
Thursday, January 22, 2015 at 12:20am

stat
Diana and franklin both play a card game called cribbage,in whichthe first person to earn 121 points is the winner. The table below shows the results of six games of cribbage. Dianna's score/Franklin's score Game 1 121/118 Game 2 121/101 Game 3 98/121 Game 4 121/103 ...
Wednesday, January 21, 2015 at 10:08pm

6th Grade Math
My son has to solve equations with mixed numbers in them. we are in dispute about the problem below: 6 3/8 = t - 4 3/4 - 2 1/16 I solved it by adding 2 1/16 to both sides, then adding 4 3/4 to both sides. My answer was 13. My son solved it by subtracting he mixed numbers on ...
Wednesday, January 21, 2015 at 8:34pm

physics
A person walks first at a constant speed of 5.10 m/s along a straight line from point circled A to point circled B and then back along the line from circled B to circled A at a constant speed of 3.15 m/s.(a) What is her average speed over the entire trip? How can I find the ...
Wednesday, January 21, 2015 at 7:53pm

History.
Hi, I got stuck on a few questions, do you mind helping me? What was George Washington's belief about U.S. foreign policy? a.The United States should form a strong alliance with France. <? b.The United States should remain neutral. c.The United States should be open to ...
Wednesday, January 21, 2015 at 6:33pm

7th grade LA
Can you check the following? Punctuate the following sentences with appropriate apostrophes. 1. Whos the partys candidate for vice president this year? Ans: Who's, party's 2. Our neighbors car is an old Chrylser, and its about to fall apart. Ans: neighbor's, it'...
Wednesday, January 21, 2015 at 7:18am

Chemistry
How would you know if a salt will produce a neutral, acidic or basic solution? I am quite confused. I know you first break them up into their ions but I dont know what to do next. For example: NaH2PO4= acidic soln Mg(HSO4)2= neutral soln Ca(CN)2= basic soln NH4F= acidic soln
Tuesday, January 20, 2015 at 10:07pm

Math
First week sells 6 chairs for $80 each. Next week, if chair is not sold, it will sell for 0.85 times previous week's price. Store needs to sell 6 chairs for total of $270 to make a profit. what is the last week in which all 6 chairs could be sold so that the store makes a ...
Tuesday, January 20, 2015 at 8:28pm

Chemistry
Virtually all the nitric acid manufactured commercially is obtained by the ammonia oxidization process. This involves this first step: Ammonia gas combines with oxygen to form nitrogen monoxide and water vapour. a) Write a balanced equation for the reaction 6 NH3 + 4 O2 -> ...
Tuesday, January 20, 2015 at 8:00pm

Pre-Calc
The average age of the groom at a first marriage for a given age of the bride can be approximated by the model y=-.107x^2+5.68x-48.5, 20<=x<=25. Where y is the age of the groom and x is the age of the bride. For what age of the bride is the average age of the groom 26?
Tuesday, January 20, 2015 at 7:52pm

Math
First week sells 6 chairs for $80 each. Next week, if chair is not sold, it will sell for 0.85 times previous week's price. Store needs to sell 6 chairs for total of $270 to make a profit. what is the last week in which all 6 chairs could be sold so that the store makes a ...
Tuesday, January 20, 2015 at 7:14pm

Legal Research Studies
This is my first assignment in University and in a law course. I have learning disabilities and have trouble remembering and reading/writing. This is my first assignment. I read it but I don't understand a thing. Please help me out... "While researching a legal issue ...
Tuesday, January 20, 2015 at 5:48pm

Chemistry
How would you know if a salt will produce a neutral, acidic or basic solution? I am quite confused. I know you first break them up into their ions but I dont know what to do next. For example: NaH2PO4= acidic soln Mg(HSO4)2= neutral soln Ca(CN)2= basic soln NH4F= acidic soln
Tuesday, January 20, 2015 at 4:33pm

algebra
Identify the degree of each term of each polynomial. Then find the degree of the polynomial. xy^3 + 7x^3y^2 - 6xy^4 + 2 I am really having trouble with how this process works. I know the degree of the polynomial is 5 but I don't know how to identify the degree of each term...
Tuesday, January 20, 2015 at 2:45am

Math
a snail is at the bottom of a well. in the first 10 minutes, the snail climbs 23 7/12 inches. In the next 10 minutes, it climbs 19 5/6 inches. How far is the snail from the bottom of the well after 20 minutes?
Monday, January 19, 2015 at 10:42pm

Math
jeremy puts an empty container under a leaking faucet. In the first hour, 3/8 quart of water collects. In the second hour, 1/6 quart of container of water collects. how much water collects in the container in the two hours?
Monday, January 19, 2015 at 10:14pm

chemistry
In a soda acid fire extinguisher, concentrated sulfuric acid reacts with sodium hydrogen carbonate to produce carbon dioxide, sodium sulfate and water. How many moles of sodium hydrogen carbonate are produced from a reaction of 0.4 moles of sulfuric acid? Write the balanced ...
Monday, January 19, 2015 at 9:51pm

Math
Find inverse of f if f(x)= x^2-4x+3, (for x is smaller than and equal to 2). First prove that f(x) is one to one in the defined domain of f and then obtain the inverse function. I know how to find the inverse. We just switch x and y. so y=x^2-4x+3 becomes x=y^2-4y+3 Inverse of...
Monday, January 19, 2015 at 7:02pm

english - Compare and Contrast
I would appreciate it if someone would be willing to look over my essay real quick. I just would like to know if I made any critical errors. Please do not correct them just point them out so I can fix it. Thank you very much. General instructions from my teacher: If you quote ...
Monday, January 19, 2015 at 5:17pm

physics
The 80kg student balances a 1300kg elephant on a hydraulic lift. (U-Tube) What is the diameter of the piston the student is standing on? When a second student joins the first, the height difference between the liquid levels in the right and left pistons is 40cm . What is the ...
Monday, January 19, 2015 at 5:06pm

Algebra
Identify the degree of each term of each polynomial. Then find the degree of the polynomial. xy^3 + 7x^3y^2 - 6xy^4 + 2 I know the degree of the first term is xy^3 is 4. I cant seem to find the second term
Monday, January 19, 2015 at 2:18pm

grade 7 math
Uniform Motion Related Problem A car travelling at 60 kph left town at 9:00 a.m. Another car travelling at 65 kph left the same place half an hour later to overtake the first. At what time did the second car overtake the first?
Monday, January 19, 2015 at 11:41am

math
The sum of first 12 terms of an arithmetic series is 186, and the 20th term is 83. What is the sum of first 40 terms?
Sunday, January 18, 2015 at 10:33pm

Civics
Henry is developing a plan of action to resolve a local issue in his community. Which of the following actions would be best for Henry to complete first? Making a long list of alternatives Learning as much as he can about the issue *** Making public speeches Writing letters of...
Sunday, January 18, 2015 at 5:29pm

Mathematics arithmetic sequence
The sum of second and sixth terms of an arithmetic sequence is 4. The third term is 24 more than eleventh term. So determine the first three terms of the sequence.
Sunday, January 18, 2015 at 5:19pm

Chemistry
What will the pH be if 15 mL of 0.1 M HCl are added to the buffer obtained by mixing 70 mL of 0.5 M CH3NH2 and 30 mL of 1.0 M CH3NH3+Cl-? (Kb for CH3NH2 is: 5.2 x 10-4 ) I'm having a hard time figuring out what to do first. is the ICE table come in handy for this? Can you ...
Sunday, January 18, 2015 at 2:47pm

MATHEMATICS
THE FIFTH TERM OF AN ARITHMETIC SEQUENCE IS 23 AND THE 12TH TERM IS 72.AND THEY SAY DETERMINE THE FIRST THREE TERMS OF THE SEQUENCE AND NTH TERM
Sunday, January 18, 2015 at 1:38pm

Math
In his first three years of coaching basketball at North High School, Coach Lucas' team won 8 games the first year, 17 games the second year, and 6 games the third year. How many games does the team need to win in the fourth year so the coach's average will be 10 wins ...
Sunday, January 18, 2015 at 10:59am

math
I used 2/5 of my money in one store and 1/3 of what remained in a second store. If I had exactly 56 pesos left how much money did I have at first?
Sunday, January 18, 2015 at 10:41am

addmath A.P.
A wire of length 380 cm is cut into 10 pieces.Each piece is then bent to form a square.The dimensions of the first three smallest squares are shown below.Find the value of x and hence,the area of the eighth largest square. x cm[ ] (x+1)cm [ ] x cm (x+1)cm (x+2)cm[ ] (x+2)cm ...
Sunday, January 18, 2015 at 10:30am

History
Inventor of Steamboat? Answer : Robert Fulton Name of his first steamboat Answer : Clermont Effects of invention were faster and cheaper ___ on rivers and oceans Answer : loads Opens new ______ for trade since it can travel faster with heavier loads than sailing ships
Saturday, January 17, 2015 at 6:35pm

Math
1. What is the range of the ages shown in the stem-and-leaf plot? 3|0,2 4|1,4,4,5 5|3,5,8,9 6|2,2,2,5,6,8 7|5,5,6 A. 4 B. 6--- My answer C. 34 D. 46 What is the median of the ages shown in the stem-and-leaf plot? 58 58.5 59---- my answer 59.5 What is the first quartile (Q1) of...
Saturday, January 17, 2015 at 5:40pm

Health and Physical Education 8
First of all, I'm not tryna suck up to get my question answered but i have to commend you people for taking your time to help others ON A SATURDAY! U guys r awesome. But anyways, my question: A main function of the skeletal system is to A.protect internal organs B.allow ...
Saturday, January 17, 2015 at 11:27am

Literature
I need help with the meter of this poem: Wild Nights -- Wild Nights! Were I with thee Wild Nights should be Our luxury! Futile -- the Winds -- To a Heart in port -- Done with the Compass -- Done with the Chart! Rowing in Eden -- Ah, the Sea! Might I but moor -- Tonight --In ...
Friday, January 16, 2015 at 10:18pm

speed
2 rockets are launched. The first one travels 9000 mph. 15 Minutes later the second launched at 10000 mph. What is the distance at wich both rockets are an equal distance from earth?
Friday, January 16, 2015 at 9:30pm

math
how many positive whole numbers smaller than 2003 have 2 as their first digit and 1 as their last digit
Friday, January 16, 2015 at 7:07pm

Maths
The first, third and ninth terms of an arithmetic sequence form the terms of a geometric sequence. Find the common ratio of the geometric sequences. a, a+2d, a+8d a+2d/a = a+8d/a+2d ?
Friday, January 16, 2015 at 5:04am

Circles
2 circles have different radius touch at a point and at the point has 1 common tangent and another common tangent touching the circles at different points other than the first
Thursday, January 15, 2015 at 11:39pm

accounting 1
Holden Graham started The Graham Co.,a new business that began operations on May 1. The Graham Co. completed the following transactions during its first month of operations
Thursday, January 15, 2015 at 11:22pm

5th grade science
How might the history of the United states be different if the first European settlements had occurred on the west coast instead of the east coast
Thursday, January 15, 2015 at 9:19pm

math
Bella spent 4/7 of her money on a dictionary and 3 identical books. She spent 1/6 of the remainder on a journal that cost $7. How much did she spend on the dictionary and 3 books? If 3/8 of the cost of the dictionary was the same as 1/2 of the total cost of 3 books, how much ...
Thursday, January 15, 2015 at 7:20pm

how concepts develop
Which of the following is the crux of the interrelationship between mathematics and science? A. About half of the basic math concepts are related to science concepts. B. The basic concepts of mathematics are the basic process skills of science. C. Basic mathematics process ...
Thursday, January 15, 2015 at 6:10pm

science
How might the history of the US be different if the first European settlements had occurred on the west coast instead of the east coast
Thursday, January 15, 2015 at 5:57pm

Art
The image is:Relief with Winged Genius Assyrian. First picture in google. In Near Eastern culture, the winged genius often represented in art and and artifacts was a (blank) god. A. Destructive B. Creative C. Undertanding D. Benevolent Is the answer D?
Thursday, January 15, 2015 at 12:20pm

Art
The image is: Cappadocian Tablet with Cuneifrom Inscription Assyrian. Its the first image that comes up in google. Which inference about Near Eastern cultures is best supported by this image? A. All citizens of the ancient Near East were excellent writers. B. This tablet ...
Thursday, January 15, 2015 at 11:47am

solid mensuration
a certain city block is in the form off parallelogram. two of it's side are each 225 meters long, the other two sides are each 145 meters long. if the distance between the first two pair is 80 meters. find the area of the land in the block and the length of the diagonals.
Thursday, January 15, 2015 at 5:05am

physics
Two geological field teams are working in a remote area. A global positioning system (GPS) tracker at their base camp shows the location of the first team as 43 km away, 23° north of west, and the second team as 29 km away, 33° east of north. When the first team uses ...
Thursday, January 15, 2015 at 3:27am

health
if a client is working on reducing stress what should the fitness professional suggest as a first step
Wednesday, January 14, 2015 at 11:10pm

math
there is to right traingles and we have to find the missing side the first traingle has 4 on the bottom and 2 as its height the second trangle has a 9 on the bottom and the x as the height which number is x. a.4.5 b.18 c.8 d.2.25 i think a
Wednesday, January 14, 2015 at 10:10pm

geography
one difference of the Canadian shield and the Western Cordillera My work And now forget about the similarities on to the differences. There are many differences about the Canadian Shield and the Western Cordillera but for today I’ll keep it snappy and only do three. So ...
Wednesday, January 14, 2015 at 8:26pm

math
4 PART Your weight on different planets is affected by gravity. An object that weighs 150 pounds on Earth weighs only 56.55 pounds on Mars. The same object weighs only 24.9 pounds on the Moon. A)What percent of an object's Earth weight is its weight on Mars and on the Moon...
Wednesday, January 14, 2015 at 5:00pm

English
The miller's wife had waited long, The tea was cold, the fire was dead; And there might yet be nothing wrong In how he went and what he said: "There are no millers any more,"5 Was all that she had heard him say; And he had lingered at the door So long that it ...
Wednesday, January 14, 2015 at 3:53pm

english
MUSICIANS wrestle everywhere: All day, among the crowded air, I hear the silver strife; And—waking long before the dawn— Such transport breaks upon the town5 I think it that “new life!" It is not bird, it has no nest; Nor band, in brass and scarlet dressed,...
Wednesday, January 14, 2015 at 3:45pm

English
1) The tea was cold, the fire was dead; What figurative language is this? A)assonance Eliminate B)onomatopoeia C)alliteration D)internal rhyme 2) Which stylistic or literary device is used in the line: ‘Sick with a fear that had no form? A)simile and metaphor Eliminate B)...
Wednesday, January 14, 2015 at 3:03pm

english
MUSICIANS wrestle everywhere: All day, among the crowded air, I hear the silver strife; And—waking long before the dawn— Such transport breaks upon the town5 I think it that “new life!" It is not bird, it has no nest; Nor band, in brass and scarlet dressed...
Wednesday, January 14, 2015 at 3:02pm

addmath A.P.
The first three terms of an A.P. are p-5,p-3 and 2p-15.If the sum of the first n terms of the progression is 180,find the value of n. Answer:n=10
Wednesday, January 14, 2015 at 9:39am

English
Scarlet Letter questions Chapter 2 The narrator seems to feel that women of the era A. Are harsher in their judgements than are the ruling men B. are overly subservient to men C. Are without exception bitter-tempered D. Are more refined than the man-like Elizabeth E. Are more ...
Wednesday, January 14, 2015 at 7:00am

Algebra
A. "Solve for w: (6w+1)/5≠2. Describe the solution in set notation." First I must find what number to substitute for "w" that WILL equal 2, correct? Then, determine the numbers that won't (I assume there will be far more of these)? What would be ...
Wednesday, January 14, 2015 at 12:52am

English
I have to find the adverb in each sentence. Then I have to identify the verb it modifies. 1.)Native Americans originally developed lacrosse. Adverb- originally. Verb-developed. 2.)It was first played by the Iroquois. Adverb- first. Verb- played. 3.)It was played differently ...
Wednesday, January 14, 2015 at 12:34am

Grade 12 Physics
A rocket ship is moving away from the earth after having been fired from a launch pad in Florida. At what point above the earth's surface will the force of gravity be reduced to ½ of its original value? ------------------ Prior to this question I was given the ...
Tuesday, January 13, 2015 at 10:23pm

English
1. She has flown on three shuttles. The shuttles were Discovery, Atlantis, and Columbia. 2. She was the first woman to earn the Congressional Space Medal of Honor. This award is given by the President of the United States. I'm writing with nouns and have to combine these ...
Tuesday, January 13, 2015 at 10:22pm

Creative Writing
( I have to do either a creative or personal response to a visual. I have chosen to do a personal response in the form of an essay. Obviously, I can't show the visual but I can describe it: A man in a swimsuit is jumping out of rough cliffs ( not in focus) into a bright ...
Tuesday, January 13, 2015 at 8:06pm

Catch-22
Hello! I need some help with this question regarding the novel "Catch-22": Which of the following is something that Yossarian does not understand about the war? A.They keep blowing up the enemy, but they gain no ground. B.People who have never met him are trying to ...
Tuesday, January 13, 2015 at 5:11pm

english
Please someone check my answers. 1. Works such as "To Build a Fire" Naturalist writers such as Jack London advocated: -trusting entirely in the wisdom and ingenuity of human beings. -*respect for the power and wildness of the natural world* -remaining always within ...
Tuesday, January 13, 2015 at 4:49pm

Math
Me. And Mrs. Jefferson have a total of $5170 in the bank. At the end of the month, mr. Jefferson deposits $450 into his account, and news Jefferson deposits $626 into her account. They now have an equal amount of money in their accounts. How much money did each of them have at...
Tuesday, January 13, 2015 at 4:47pm

math
A motorist does the first part of the journey at an average speed of 54 km/h. He then increases his speed to 60 km/h for the rest of the journey. if he travels 225 km in 4 hours, what is the distance traveled for the first part of his journey????
Tuesday, January 13, 2015 at 11:22am

math
If you flip a coin twice, what is the probability that a head or a tail will land up on the first flip. Express your answers as a percent.
Tuesday, January 13, 2015 at 9:15am

algebra
Sharon has 24 colored paper clips in her desk drawer:12 are red, 8 are yellow, and 4 are blue. She also has 28 pushpins in her drawer: 11 are white, 14 are orange, and 3 are green. 1. If she picks one paper clip, what is the probability that it will be either blue or yellow.4/...
Tuesday, January 13, 2015 at 5:44am

Chemistry (Chromatography)
In elution chromatography (Ion-exchange) outline the order of elution for the following cationic species: Cu2+, Fe3+, Ag+ and Na+? I understand it has to do with polarity, but in which sense i.e does the least polar/most polar species elute first? Thanks
Tuesday, January 13, 2015 at 1:59am

english
It had been there when the midwife had announced, ‘You’ve a boy.’ The hat was there when his wife had their second little joy. Why does the author MOST likely choose the words, ‘their second little joy’? A)They had twin boys. B)It expresses that their ...
Monday, January 12, 2015 at 11:21pm

chemistry
The molarity of a kool-aid packet is 0.365M. How many grams of sucrose (C12H22O11) are in 200mL of the kool-aid drink? --- I know that the molar mass is 342.29648 g/mol kool-aid. I'm not sure on how to find the grams of the solute.
Monday, January 12, 2015 at 10:51pm

physics
Train cars are coupled together by being bumped into one another. Suppose two loaded train cars are moving toward one another, the first having a mass of 160,000 kg and a velocity of 0.300 m/s, and the second having a mass of 115,000 kg and a velocity of -0.120 m/s. (The minus...
Monday, January 12, 2015 at 10:01pm

propability
Lorenzo has a jar with 21 green olives and 15 black olives in it. If he takes two olives out of the jae with replacement,what is the probability that the first olive will be black and the second olive will be green?
Monday, January 12, 2015 at 9:34pm

Physics
A 4.00-g bullet is moving horizontally with a velocity vector v = 348 m/s, where the sign + indicates that it is moving to the right (see part a of the drawing). The bullet is approaching two blocks resting on a horizontal frictionless surface. Air resistance is negligible. ...
Monday, January 12, 2015 at 8:55pm

physics
A lumberjack (mass = 98 kg) is standing at rest on one end of a floating log (mass = 270 kg) that is also at rest. The lumberjack runs to the other end of the log, attaining a velocity of +2.6 m/s relative to the shore, and then hops onto an identical floating log that is ...
Monday, January 12, 2015 at 8:08pm

math
A school band is having a fundraiser. Band members will sell coupon books for $10 each. The band earns $12.50 for every 5 coupon books that are sold. a. After the first week, the band members had sold 105 coupon books. How much money did the band members earn from the 105 ...
Monday, January 12, 2015 at 7:56pm

Math
The marsh family took a vacation that covered a total distance of 1356 miles. The return trip was 284 miles shorter than the first part of the trip. How long was the return trip? My answer is 1356-284= 1072
Monday, January 12, 2015 at 7:44pm

Math
A school band is having a fundraiser. Band members will sell coupon books for $10 each. The band earns $12.50 for every 5 coupon books that are sold. a. After the first week, the band members had sold 105 coupon books. How much money did the band members earn from the 105 ...
Monday, January 12, 2015 at 7:21pm

Math
Q. Sidney flew in an airplane five times during her vacation. The flights overaged 2 hours 28 minutes long. The lengths of her first four flights were 2 hours 10 minutes,3 hours 20 minutes,1 hour 15 minutes,and 2 hours 40 minutes. What was the length of her last flight. A. Do ...
Monday, January 12, 2015 at 6:46pm

english
MUSICIANS wrestle everywhere: All day, among the crowded air, I hear the silver strife; And—waking long before the dawn— Such transport breaks upon the town5 I think it that “new life!" It is not bird, it has no nest; Nor band, in brass and scarlet dressed...
Monday, January 12, 2015 at 6:43pm

Math
Brenda's School is selling tickets to a spring musical. On the first day of ticket sales the school sold 3 senior citizen tickets and 9 child tickets for a total of $75. The school took in $67 on the second day by selling 8 senior citizen tickets and 5 child tickets Set up...
Monday, January 12, 2015 at 5:33pm

Statistics
Did you ever buy an incandescent light bulb that failed (either burned out or did not work) the first time you turned the switch on? When you put a new light bulb into a light fixture, you expect it to light and most of the time it does. Consider 8-packs of 60-watt bulbs and ...
Monday, January 12, 2015 at 1:24pm

chemistry
i have a homework packet that i am struggling with can you please help me my first question is i have to finish the following equation to balance it out my question is 3Fe3O4+blankAl→blankAl2O3+blankFe now i tried and i got 3Fe3O4+2A=2Al2O3+2Fe i dont know if thats right...
Monday, January 12, 2015 at 12:59pm

addmath A.P.
The first three terms of an arithematic profgression are x,2x+y and 9x-y.The sum of these three terms is 60.Find the numerical values of x and y.Then,calculate the eleventh term of the progression
Monday, January 12, 2015 at 11:45am

addmath
Given that k,3k and k+1 are three consecutive terms of an A.P,find the numerical value of k.Then find the first term if 3k is the sixth term of the progression. Answer:k=1over4 a=-7over4 I got the k but the a i can't get
Monday, January 12, 2015 at 11:08am

Please check my Calculus
1. Find the value(s) of c guaranteed by Rolle’s Theorem for f(x)=x^2+3x on [0, 2] A. c=-3/2 B. c=0, 3 C. Rolle’s Theorem doesn’t apply as f is not continuous on [0, 2] D. Rolle’s Theorem doesn’t apply as f(0) does not equal f(2) E. None of these I got ...
Monday, January 12, 2015 at 10:52am

Please check my Calculus
1. Which of the following describes the behavior of f(x)=x^3-x A. Relative maximum: x=0 B. Relative maximum: x=(1/sqrt(3)); Relative minimum: x=(-1/sqrt(3)) C. Relative maximum: x=(-1/sqrt(3)); Relative minimum: x=(1/sqrt(3)) D. Relative minimum: x=0 E. none of these I got C. ...
Monday, January 12, 2015 at 10:07am

Please check my Calculus
1. Find all points of inflection of the function f(x)=x^4+x^3 A. (0, 0) and (-½, -1/16) B. (-½, -1/16) C. (0, 0) D. (0, 0) and (-¾, -27/256) E. none of these I got A. I found the second derivative and solved for x and plugged in the values to find the ...
Monday, January 12, 2015 at 7:35am

Please check my Calculus
1. Find all points of inflection of the function f(x)=x^4-6x^3 A. (0, 0) B. (0, 0), (9/2, -2187/16) C. (3, -81) D. (0, 0), 3, -81) E. none of these I got D. I found the second derivative and solved for x and plugged values into original function to get points. 2. Find dy/dx ...
Monday, January 12, 2015 at 2:32am

Please check my Calculus
1. Find all points of inflection: f(x)=1/12x^4-2x^2+15 A. (2, 0) B. (2, 0), (-2, 0) C. (0, 15) D. (2, 25/3), (-2, 25/3) E. none of these I got D. I found the second derivative and equaled it to 0 and solved for x. I plugged the x values in to get my points. 2. Find the ...
Monday, January 12, 2015 at 12:32am

Please check my Calculus
1. Given f(x)=-6/x, choose the correct statement A. The graph of f is concave upward on the interval (negative infinity, 0) B. The graph of f is concave downward on the interval (negative infinity, 0) C. The graph of f is concave upward on the interval (negative infinity, ...
Monday, January 12, 2015 at 12:22am

Please check my Calculus
1. Find all critical values for f(x)=(9-x^2)^⅗ A. 0 B. 3 C. -3,3 D. -3, 0, 3 E. none of these I got D. I found the derivative and solved for critical numbers. 2. Find all intervals on which the graph of f(x)=(x-1)/(x+3) is concave upward A. (negative infinity, infinity) ...
Monday, January 12, 2015 at 12:15am

Please check my Caclulus
1. Find all intervals on which the graph of y=(x^2+1)/x^2 is concave upward. A. (negative infinity, infinity) B. (negative infinity, -1) U (1, infinity) C. (negative infinity, 0) U (0, infinity) D. (1, infinity) E. none of these I got C. I found the second derivative and used ...
Monday, January 12, 2015 at 12:05am

Civics
A text box reads, If men were angels, no government would be necessary. If angels were to govern men, neither external nor internal controls on government would be necessary ... the great difficulty lies in this, you must first enable the government to control the governed, ...
Sunday, January 11, 2015 at 10:07pm

science 1 question
When evolution was first proposed, which of the following was used as evidence to support the idea? A)observations of nature B)laboratory experiments C)extensive fossil collections D)genetic sequences Is it A or C??? I'm very torn between the two. pls help asap! i might ...
Sunday, January 11, 2015 at 10:10am

math
I would need help with example: The three numbers are consecutive terms of arithmetic progression and the sum of their second powers is 126. The first number 3 times smaller, the second number with no change and the third number 4 times greater, are the 3 consequtive terms of ...
Sunday, January 11, 2015 at 6:21am

language arts
Which of the following is part of the novels rising action? A. Johnny's growing role delivering messages and acting as a spy for the Whigs*****? (I've heard many people say it was this, i thought it was either c or d) B. Dr. Warrens imminent surgery on johnny hand C. ...
Saturday, January 10, 2015 at 6:44pm

ratio
Write a ratio for the situation in three ways comparing the first quantity to the second quantity A zoo has 14 monkeys and 18 chimpanzees
Saturday, January 10, 2015 at 5:27pm

math
I would need help with example: The sum of three consecutive terms of geometric progression is 9. The first number with no change, the second number plus 12 and the third number minus 3, are the 3 consequtive terms of arithmetic progression. What are the values of original 3 ...
Saturday, January 10, 2015 at 2:38pm

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