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February 27, 2015

Search: Calculus - not sure if my work is correct?

Number of results: 59,123

Chem
Do my answers look correct for these? Thanks Calculate the mass percent of a solution containing 45.6 grams ethanol (C2H6O) in 245 grams of water. 15.7% You are asked to make 500.0 mL of a 4.5M solution of HCl, but the only HCl you have available to dilute is 18.0M. Describe ...
December 7, 2009 by Matt

math
if freddy tosses a coin three times, what is the probability that the coin will turn up hesds,tails,heads, tails in that order? I came up with 1/2 correct? also the ratio length to the width of the alamo isabout 5to 3 if the width of the alamo is 63ft about how long is the ...
May 17, 2011 by jill

PreCalc - Sequence
A ball is dropped from a height of 20 ft and always rebounds 1/4 of the distance fallen. A. write a sequence for the first 3 rebound heights B. How high is the 6th rebound? C. Find the sum of all possible rebounds. I keep getting numbers that are too high. I don't think I have...
July 27, 2011 by Joe

English
Thank you both for helping me. I just wanted to know if the folliwing two words are correct:"them" and "alerts". 1) Go through security and show your passport.Put your hand luggage and any metal object in a basket for them (?) to be scanned. 2) Then walk through the metal ...
October 3, 2011 by Henry2

English
The strategies for writing positive or neutral message. is my response correct?: In the opening avoid personal information state your main idea so it wouldn't be overlooked. In the body of the message provide reasons and/or details for the main idea. Close your message ...
November 6, 2011 by Bryan

physics
Over a time interval of 2.37 years, the velocity of a planet orbiting a distant star reverses direction, changing from +23.4 km/s to -15.7 km/s. Find (a) the total change in the planet's velocity (in m/s) and (b) its average acceleration (in m/s2) during this interval. Include...
December 13, 2011 by a

Physics
Over a time interval of 2.15 years, the velocity of a planet orbiting a distant star reverses direction, changing from +18.9 km/s to -17.3 km/s. Find (a) the total change in the planet's velocity (in m/s) and (b) its average acceleration (in m/s2) during this interval. Include...
January 22, 2012 by Isaac

physics
Over a time interval of 1.72 years, the velocity of a planet orbiting a distant star reverses direction, changing from +18.2 km/s to -18.8 km/s. Find (a) the total change in the planet's velocity (in m/s) and (b) its average acceleration (in m/s2) during this interval. Include...
September 11, 2012 by Kendall

physics
A near-sighted person might correct his vision by wearing diverging lenses with focal length f = 60 cm. When wearing his glasses, he looks not at actual objects but at the virtual images of those objects formed by his glasses. Suppose he looks at a 10-cm-long pencil held ...
January 28, 2013 by k

Grammar
Which of the following is correct in regard to the use of formal English? A. In formal English, we use words to say precisely what we mean. B. Contractions are considered acceptable in any document. C. Formal English is used more frequently in speaking than in writing. D. In ...
May 9, 2013 by Samara

MaTh
need help with word problem The Parks Department is planting a circular garden in the city park. The diameter of the garden is 10 feet. The concrete mowing strip is around the garden is one foot wide. What is the area of the mowing strip? A= 3.14 x 6 square -radius is 6,half ...
August 22, 2013 by Amy

physics
Over a time interval of 2.17 years, the velocity of a planet orbiting a distant star reverses direction, changing from +19.3 km/s to -22.9 km/s. Find (a) the total change in the planet's velocity (in m/s) and (b) its average acceleration (in m/s2) during this interval. Include...
September 7, 2014 by shant

English
1. Don't touch. 2. Don't take pictures 3. Don't bring pets. 4. Don't bring/use _______________. 5. Don't use cellphones. --------------------- There are five kinds of signs. They are stop signs. There is a line from the top left to the bottom right. Are the explanations ...
November 16, 2014 by rfvv

pvc and wool
If you rub a piece of PVC pipe with some wool and touch the PVC to Aluminum foil. Will the PVC be charged after rubbing it with wool?? Will the aluminum be charged? Finally can the PVC cause the aluminum to move. Please explain (hint: can the PVC give charge to the aluminum?) ...
January 13, 2009 by kaylee

algebra
x cubed + x squared over x squared - 16 times x + 4 over 3x to the fourth power + x cubed - 2x squared. i got x + 1 over (x-4) (x+1) (3x+2). is this correct?
February 7, 2008 by anonymous

math.
hey guys i was just wondering if someone could help me with my 4 previous posts Algebra. Other people have posted things to check and they have gotten responses,my posts are still on this page thank you:) Marissa, I am sure nobody is intentionally ignoring you. Some of the ...
August 14, 2007 by Marissa

math
I don't understand this question so if you don't mind will you help me by showing work so I can understand. Monica has a backyard in the shape of a square. Which of the following is a possible are of the yard? A)32 square feet B)99 square feet C)64 square feet D)133 square feet
September 14, 2010 by sherkyra

Geography
I've been trying to post this question for an hour but it won't let me because it says I'm posting a website adress. So I'm going to do it in parts... Here are all the hints and all my answers. Can someone please check if they're correct? "Guess where we are? We spent two days...
October 11, 2009 by mysterychicken

Math - Solving equation (check )
7 = (210+88t)/(2(sqrt(210t+44t^2))) Is t= 1.0479....? I got the denominator multiplied by 7 and squared both sides to eliminate the sqrt and then simplified, used the quadratic formula to find the values but since the questions is about squirrels growth it can not be a ...
October 22, 2010 by Anonymous

geography
put these wents that led to the start of he American Revolution in the correct chronological order: a: declaration of 1763 b: french and Indian war c: Stamp act d: Boston Massacre e: pontac's rebellion f: Boston tea party g: townshend acts h: intolerable acts i: battle of ...
January 24, 2013 by Taylor

English Literature
We have just finished reading Poe's "The Fall of the House of Usher" and I need to explain, in a paragraph what "Roderick is all mind in a weak body" means. I think it's somehere along the lines of his spirit being alive but his exterior being dead. I'm really bad at ...
May 1, 2014 by Bob

geography
In the post-industrial era, an edge city is a/an A. urbanized development that is an extension of a megalopolis B. complex of warehouses, shopping malls and offices located along traffic routes C. merger of several residential suburbs into one entity D. large suburban ...
July 11, 2014 by suzanne

math 4th grade
what is 8 to the 5 power? i know its hard. but you dont have to answer it. thanks a lot! 32768 85 means 8*8*8*8*8 = >>? I assume you can do this on a calculator. Did you know the there is a web site that can do this for you. Go to www.google.com (if you have permission ...
November 15, 2006 by Adam

Algebra
Jodie bicycles 5 km/h faster than Robert. In the same time it takes Robert to bicycle 39 km, Jodie can bicycle 54 km. How fast does each bicyclist travel? I was out of school last week with the flu, and I am trying to do this makeup work but I have no idea how to solve this. I...
February 1, 2009 by Kacey

PHYSICS - please check my work
a spectator at a hockey game is sitting in a seat situated 10.4m above ground leve. if the spectator has a mass of 52.6 kg, calculate her gravitational potential energy relative to: a)ground level Eg=mgh =52.6X9.8X10.4 =5360.99J b)the ice surface Eg=mgh =52.6X9.8X13.2 =6804J
January 31, 2010 by Sarah

physics
A shopper pushes a grocery cart 20m at constant speed on level ground against a 35N frictional force. He pushes in a direction 25 degrees below the horizontal. What is the work done on the cart by gravity? I know you can use W=Fdcos(theta) where F=mass*gravity. BUT, no mass is...
October 4, 2010 by Juliette

science biochem- please help!!!!
I don't know where to start with it? A tube is set up for radioimmunoassay containing antibody with a capacity for binding 1ug antigen. Both labelled (50,000 counts per ug) and unlabelled antigen are added to the tube. Work out a formula to calculate the amounts of counts ...
February 27, 2011 by Isabel

English
Which of the following is a fragment a.because we had tickets. b.running past first base. c. Athletes understanding the purpose of practice. d. all of the above. I am think d Which of the following is a fragment? A.Here are the answers to the math questions. b.There seems to ...
November 18, 2014 by Anonymous

physics
A person sitting in a chair (combined mass 80kg) is attached to a 6m long cable. The person moves in a horizontal circle. The cables angle is 62 degrees below the horizontal. What is the persons speed? Note: the radius of the circle is not 6m. I really just need and equation ...
December 15, 2014 by Todd

chemistry
We did this in a lab and nothing happened, but I'm pretty sure something was supposed to happen, so my question is: What happens when you put a pellet of sodiumhydroxide on a watch glass and observe it for 5-10 minutes? If there were hudidity in the air, it should have ...
February 14, 2007 by Natasha

chemistry
What is the equilibrium constant "Kp" at 200 C for the reaction below: P4(s) + 6 Cl2(g) --><-- 4 PCL3(l) Given the following at 200 C P4(s)+ 10 Cl2(g) --><-- 4 PCl5(s) Kc=8.12 PCl3(l)+ Cl2(g) --><-- PCl5(s) Kc=0.771 Answer: 6.7*[10^(-9)] not sure what to do. ...
July 20, 2011 by l

Geometry
M and N are the midpoints of PR(which has a line over PR) and QR(which has a line over QR)respectively. Using graph paper, repeat this process from the last problem using different coordinates for P, Q, and R. How do these lengths MN and PQ compare now? What do you think you ...
July 26, 2011 by Hunter Spence

chemistry
Let me try! Let me try! :) nickel(II)nitrate and zinc nitrate -->Ni|Ni^+2 (??M) ||Zn^+2 (??M)|Zn Iron(II) nitrate and zinc nitrate -->Fe|Fe^+2 (??M) ||Zn^+2 (??M)|Zn Silver nitrate and zinc nitrate -->Ag|Ag^+2 (??M) ||Zn^+2 (??M)|Zn Is this correct? Also, how would I ...
April 15, 2008 by Anna

English
How many activities did you have on Monday? 1. I had three activities on Monday. 2. I did three activities on Monday. (Are both answers correct? ....Thank you for your help. With your help, I can solve a lot of problems.....Have a good time.)
September 2, 2010 by rfvv

Math
Tanya had $1.19 in coins. None of the coins were dollars or 50-cent pieces. Josie asked Tanya for change for a dollar, but she did not have the correct change. Which coins did Tanya have
February 22, 2012 by Elaina

Maths
I have 40 questions, 4 marks given for a correct answer, 2 marks deducted for each wrong answer and 1 mark deducted for for each answer not attempted I attempt 19 and score 25 marks.how many questions did I get right
November 18, 2014 by Chris

(19) Chemistry - Science (Dr. Bob222)
Use the following information to answer this question: Cu+(aq) + e- → Cu(s) E° = 0.521V Cu2+ (aq) + e- → Cu+ (aq) E° = 0.153 V. Given these half cell reactions, an aqueous solution of Cu+ ion in the absence of O2(g) : A. will be thermodynamically stable B. will ...
May 8, 2014 by Ana

Calculus
Determine the volume of the solid abtained when the region bounded by y=sqrt x and the line Y=2 and x=0 is rotated: (i) about the x-axis (ii) about the line x=4. (i) Each element of the body of revolution with thickness dx, has area pi*(sqrt x)^2 dx = pi x dx. Integrate that ...
August 12, 2006 by Ruth

Calculus
For the function f(x)=10-4(x^2), find a formula for the lower sum obtained by dividing the interval [0,1] into n equal subintervals. Then take the limit as n->infinity to calculate the area under the curve over [0,1]. I only need help with the first part. I don't really ...
May 5, 2009 by Jenna

calculus
We know this is a piecewise function and we solved the first part, but we cannot figure out the other equation. A passenger ship leaves port sailing east at 16 mph. Two hours later, a cargo ship leaves the same port heading north at 12 mph. (a) Find a function giving the ...
September 1, 2014 by raymond

probability
What is the probability of getting 80% or more of the questions correct on a 10-question true-false exam merely by guessing? probability - Damon, Wednesday, March 6, 2013 at 2:53am Binomial distribution with p = .5 p(10 right) = c(10,10) .5^10 (.5)^0 =.5^10 = .000976 p( 9 ...
March 6, 2013 by noman

Calculus
If an arrow is shot straight up from the surface of the moon with an initial velocity of 100 ft/s, its height in feet after t second is given by s(t)=(100t)−(83/100)(t^2). Use the limit definition of the derivative to find the answers to the following questions. Find the...
June 8, 2013 by Linda

Statics
You wish to test whether or not a coin is fair, so you toss it 400 times and obtain 220 heads. Test the null hypothesis that the coin is fair and balanced against the alternative that it is not fair and balanced. Use the 1% significance level. Be sure to identify the null and ...
December 2, 2012 by Heather

Survey of Calculus (Algebra too)
For the supply equations, where X is the quantity supplied in units of a thousand and P is the unit price in dollars, (A.)- sketch the supply curve and (B.)- determine the price at which the supplier will make 2000 units of the commodity available in the market. P= x^2 + 16x...
September 4, 2008 by Mel

GEOGRAPHY / SCIENCE
The theory that addressed the apparent ability of landmasses to move through the crust is called Continental Drift? I think this is the answer but not sure. Please help Yes, You're right. The Continental Drift theory is based on plate tectonics. http://kids.earth.nasa.gov/...
October 15, 2006 by Suzanne

Pre-Calculus
Approximate the greatest real zero of the function g(x)= x^3-3x+1 to the nearest tenth. I know that there is a zero between -2 and -1, and another between 0 and 1 but do not know how to find it to the nearest tenth. The only example shown in my book uses a calculator and mine ...
August 31, 2008 by Lucy

calculus
Sorry to post this again, but I am still unable to understand it and need help. Please help.1) Using 3(x-3)(x^2-6x+23)^2 as the answer to differentiating f(x)=(x^2-6x+23)^3/2, which I have been able to do, I need to find the general solution of the differential equation dy/dx...
May 22, 2011 by Claire

Calculus
The management of Lorimar Watch Company has determined that the daily marginal revenue function associated with producing and selling their travel clocks is given by R '(x) = -0.003x + 12 where x denotes the number of units produced and sold and R '(x) is measured in dollars/...
July 17, 2013 by Anonymous

Calculus
The management of Lorimar Watch Company has determined that the daily marginal revenue function associated with producing and selling their travel clocks is given by R '(x) = -0.003x + 12 where x denotes the number of units produced and sold and R '(x) is measured in dollars/...
July 19, 2013 by Anonymous

Calculus - Volume By Integration
Find the volume of the solid generated by revolving the region bounded by the given lines and curves about the y-axis: y=(x-2)^3-2, x=0, y=25 Solve by either the disk or washer method. I calculated the volume using the shell method and got 1250pi. However, I can't figure out ...
November 25, 2013 by Nicole

Physics
A rotating door is made from four rectangular glass panes. The mass of each pane is 90kg. A person pushes on the outer edge of one pane with a force of F=70N that is directed perpendicular to the pane. Determine the magnitude of the door's angular acceleration. in rad/s2 I ...
March 24, 2007 by CJ

language arts
choose which metaphor, melting pot or salad bowl, you think is best for the united states and explain why. I said melting pot because: - people from different cultures marry and have children - people from different cultures assimilate into our country - some learn the ways of...
February 20, 2012 by SoccerStar

Physics
I don't know if my answers are right. D: 1)Why is a time interval always positive? I'm not really sure but I wrote down something with vectors and scalars. 2)If the average acceleration of a car is zero in a given time interval, what can you tell about the displacement of the ...
October 1, 2014 by Selena

english
Can you writeacher please tell whether or not the following sentences are all possible?As they are not dictionary definitions, I just like to know if they are grammatically correct. 1) An external narrator stands outside the story/is a voice outside the story/ (but not out of ...
March 10, 2010 by Franco

Algerba
Find slope and y-intercept of following equation y=-3 x -2 knowing the slope of intercept 5 formula is y=mx+b slope is m or -3 y=-3 or m (0) -2 m=slope 5 5 y-intercept = let x=o solve for y y=0-2 y=-2 You can tell by inspecting the equation in the y = mx + b form that the ...
February 28, 2007 by Trusthim2

math
Hi, I wrote the first one wrong... The hawks won 17 more hockey games than they lost. They played 52 games in all and had 3 ties. How many games did they lose? This is what I did so far... 52 games ...-17 ------ 35 okay now there is 3 ties??? so they had 35 games left.. is ...
October 8, 2009 by zoe

physics (coulombs law)
a charge +6 C experiences a force of 2mN in +x direction. a)what was the electric field there before charge was placed ? b)describe the force which a -2c charge would experience if it is located at the point in place of the +6c for a) i assumed the charge is 0 'cos there's no ...
December 8, 2012 by lola

physics
You’re using a wedge to split a log. You are hitting the wedge with a large hammer to drive it into the log. It takes a force of 3500 N to push the wedge into the wood. If the wedge moves 0.2 m into the log, how much work have you done on the wedge?
February 10, 2011 by olga

physics
A 25 kg box slides, from rest, down a 9-m-long incline making an angle 15 degrees with the horizontal. The speed of the box when it reaches the bottom of the incline is 2.40 m/s. (a) What is the coefficient of kinetic friction between the box and the surface of the incline? (b...
June 13, 2010 by Sandhya

Calculus
R is the region in the plane bounded below by the curve y=x^2 and above by the line y=1. (a) Set up and evaluate an integral that gives the area of R. (b) A solid has base R and the cross-sections of the solid perpendicular to the y-axis are squares. Find the volume of the ...
January 27, 2010 by Jake

Calculus
R is the region in the plane bounded below by the curve y=x^2 and above by the line y=1. (a) Set up and evaluate an integral that gives the area of R. (b) A solid has base R and the cross-sections of the solid perpendicular to the y-axis are squares. Find the volume of the ...
January 28, 2010 by Jake

Calculus
R is the region in the plane bounded below by the curve y=x^2 and above by the line y=1. (a) Set up and evaluate an integral that gives the area of R. (b) A solid has base R and the cross-sections of the solid perpendicular to the y-axis are squares. Find the volume of the ...
February 2, 2010 by Drake

CALCULUS
What is the following limit? lim as n goes to infinity of (pi/n) (sin(pi/n) + sin(2pi/n) + sin(3pi/n) +...+ sin(npi/n)) = I.) lim as n goes to infinity sigma (n and k=1) of pi/n sin(kpi/n) II.) Definite integral from 0 to pi of sin(x)dx III.) 2 A.) I only B.) II only C.) III ...
May 31, 2012 by ANONYMOUS

Calculus I don't understand
Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis. y = 10 x and y = 5 x^2 about y =0 Find the volume of the solid obtained by rotating the region bounded by y=8 x^2, x = 1, and y = 0 , about the x-axis. I saw some...
December 4, 2013 by Jackie

My Friend Needs Help With a Calc Problem.
how does five degrees east of north keep a plain going north when the wind pushes the plain four point six degrees west of north? This is not calculus. It is a vector problem. THe wind is pushing the plane west. If you need the solution, to find the direction of the wind, a ...
October 12, 2006 by Sarah

Honors Pre-Calculus
It is known that when a car with wheels of radius 14 in. is driven at 35 mph, the wheels turn at an approximate rate of 420 revoulutions for minute. Show how to obtain this rate of turn. If you ride a bicycle a distance of 5 miles in 15 minutes at a constant speed and if the ...
September 11, 2007 by Anonymous

Calculus Help Please Urgent!!!
Breathing is cyclic and a full respiratory cycle from the beginning of inhalation to the end of exhalation takes about 3 s. The maximum rate of air flow into the lungs is about 0.3 L/s. This explains, in part, why the function f(t) = (3/10)sin(2πt/3) has often been used ...
May 1, 2014 by TANYA

cell biology
The production of cAMP directly regulated by two enzyme, ___________ and_______. This former is ___________ a protein, when latter is a _________ protein. a. phospodiesterase (PED),Adenylyl ccyclase(AC), cytosolic, peripheral. b. PDE, AC, peripheral, cytosolic C.Adenylyl ...
August 1, 2006 by Tamara

English
For english class, I have to read a biography/autobiography of an author and then read two of the author's books that have been influenced by their real life. I chose F. Scott Fitzgerald as my author. I want to read The Great Gatsby as one of the books, but I'm not sure which ...
December 4, 2012 by Ceci

Math Calculus
Suppose g(x) = 6x arctan (ln x/(x^3+2)) Plot y = g(x) in the square window defined by 0 ≤ x ≤ 2 and −1 ≤ y ≤ 1. Also plot the secant lines connecting (1, g(1)) and (1 + h, g(1 + h)) for h = .5 and h = .25 in the same window. Give a table of ...
October 8, 2012 by Anonymous

Math - Solving Trig Equations
Solve each equation for o is less than and/or equal to theta is less than and/or equal to 360 -- sin^2x = 1 = cos^2x -- Work: cos^2x - cos^2x = 0 0 = 0 -- Textbook Answers: 90 and 270 -- Btw, how would you isolate for cos^2x = 0? Would it be... x = cos^-1 square root of _____ ?
November 24, 2007 by Anonymous

Physics
A car travels at a speed of 25 m/s on a flat stretch road. The driver must maintain pressure on the accelerator to keep the car moving at this speed. The car's engine is doing work on the car, yet the kinetic energy of the car is not changing. What is happening to the energy ...
August 5, 2013 by Rachel.

Physics
A car travels at a speed of 25 m/s on a flat stretch road. The driver must maintain pressure on the accelerator to keep the car moving at this speed. The car's engine is doing work on the car, yet the kinetic energy of the car is not changing. What is happening to the energy ...
August 5, 2013 by Rachel.

Grammar
Are these answers correct? Punctuation within Sentences—Colon 1. The book had three different features: a hard-bound cover, a ribbon for a bookmark, and the author’s signature. Punctuation within Sentences—Colon 2. German grammar is simple: In that language, there are no ...
July 6, 2007 by Marvin

Algebra
Twenty-five percent of your budget will be used to rent business space and pay for utilities. Write an algebraic expression that indicates how much money will be spent on business space and utilities. 2nd question. .25($118,250.00) correct answer? .25($118,250.00)
January 22, 2008 by Mckenzie

Physical Science
Hello, I wanted toknow if I came to the correct solution for this problem. Thank You, 20 Cubic inches of a gas with an absolute pressure of 5 psi is compressed until its pressure reaches 10 psi. What is the new volume of the gas?(assume that there's no temperature change.) my ...
February 5, 2008 by Mandi

Math
A farmer decides to enclose a rectangular garden, using the side of a barn as one side of the rectangle. What is the maximum area that the farmer can enclose with 80ft of fence? 800 sq ft? What should the dimensions of the garden be to give this area? 40ft is given so I ...
February 18, 2008 by Marysvoice

Geometry repost
I have a question about disjunctions. The symbol "v" represents "or". "~" stands for "negation of" Here are two questions I need help with: 1. When p v ~q is false, then p is ______ and q is _____. I think "false" belongs in both spaces. 2. When ~p v q is false, then p is ...
September 27, 2008 by Anonymous

psychology
Random assigment can be described as a research method: A used to balance the independent and dependent variable B no longer used because of its unpredictability C increasing the likelihood that experimental group and control group will be different Cused to balance the ...
September 16, 2009 by vedrana

physics
Which of the following is correct according to Rutherford's atom model? Choose one answer. a. Atomic spectra should be line spectra. b. Electrons do not radiate while revolving in an orbit. c. Atomic spectra should be continuous spectra. d. Electrons are embedded in a ...
May 1, 2011 by ashley --- HELP PLEASEE!!!

Chemistry - please help
A substance was tested for Impurity A using liquid chromatography. 2 determinations were performed. In the 1st chromatogram, Impurity A was not detected, i.e. no Impurity A peak was observed and in the 2nd chromatogram, Impurity A peak was observed with a value of 0.3%. Is it ...
August 13, 2011 by elizabeth

alg application
two cars leave the station at 9:00 am. the first car head due south at an avg speed of 54mph. the second car heads due west at an avg speed of 72mph. how far apart will the cars be at 1:00pm? my solution: 360mi is this correct
January 8, 2012 by luckybee

Business Law
Under which four (4) conditions are restraints of trade legally enforceable? I believe the restraints of trade that are legally enforceable are Government-Granted Monopolies, Private Franchises, Zoning Regulations and Environmental and Safety Regulations. But I am not 100% ...
June 18, 2012 by Melisa

Business Law
Under which four (4) conditions are restraints of trade legally enforceable? I believe the restraints of trade that are legally enforceable are Government-Granted Monopolies, Private Franchises, Zoning Regulations and Environmental and Safety Regulations. But I am not 100% ...
June 18, 2012 by Melisa

Chemistry
A plumber installs a pipe that has a diameter of 10 cm and a length of 2.4m, Calcualte the volume of water(in cm3) that the pipe will hold. Express your answer to the correct number of significant digits. Note: The formula for the volume of a cylinder is V=Pi(r)2h, where r is ...
September 13, 2014 by Jessica

calculus
Given the position function of an object moving in a straight line, measured in meters, from the origin. Describe the motion in all phases throughout the duration of the motion from time t=0 to t=11 sec. s(t)=t^3 - 15t^2 + 50t State when the object is moving forward or ...
March 7, 2010 by Anonymous

Calculus--Reiny
V = Radical The expression: V2(V5-12V3)-V3(V8-2V30) can be written in simplest form aVb-cVd, where a, b, c ,d are all positive integers. The value of a + b + c + d is ________. So after solving all this out, I arrived at 7V10 - 14V6. That - is beside the 14, and Im only ...
October 4, 2011 by -Untamed-

Child Develpoment-- Question
Can you help with this question? As a caregiver of an infant, meaningful communication between you and the parent, gently introducing new parenting techniques, can sometimes be done lightly by which? A. "talking through the baby." B. waiting until the mother is present before ...
May 8, 2007 by Rachel

English
1. What an amazing story it is! 2. How amazing the story is! 3. What the amazing story it is! Which one is the same as #2? #1 or #3? Is #3 correct?
June 30, 2008 by John

Calculus
Let f be the function given by f(x)=(x^3)/4 - (x^2)/3 - x/2 + 3cosx. Let R be the shaded region in the second quadrant bounded by the graph of f, and let S be the shaded region bounded by the graph of f and line l, the line tangent to the graph of f at x=0. Graph shown through...
February 27, 2013 by Jessy152

Calculus
The total worldwide box-office receipts for a long-running movie are approximated by the following function where T(x) is measured in millions of dollars and x is the number of years since the movie's release. T(x) = (120x^2)/(x^2 + 4) How fast are the total receipts changing ...
June 13, 2013 by Mike

calculus
Suppose that the number of bacteria in a plate of food is given by N(T)= 10T^2 - 40T + 200, -1<=T<=20 where T is the temperature of the food in degrees Celsius. Suppose that the temperature of the food when it is left out on a picnic table is given by T(t)= 4t + 10, 0<...
September 23, 2014 by Anonymous

calculus
Suppose that the number of bacteria in a plate of food is given by N(T)= 10T^2 - 40T + 200, -1<=T<=20 where T is the temperature of the food in degrees Celsius. Suppose that the temperature of the food when it is left out on a picnic table is given by T(t)= 4t + 10, 0<...
September 23, 2014 by Anonymous

the scarlet letter
why, according to nathaniel hawthorne, were there few physicians in boston? (Broken Link Removed) Be sure to read the section called Revolutionary Era. =) Another place to check would be the beginning of Chapter 9, The Leech does anyone know where i can get a modern day ...
October 1, 2006 by glinda

HSM 270
I just need someone to explain this suggestion to me about a evaluation plan. I am so confused and my instructor not answering her phone. I really need help. The assignment was to describe the types of evaluations you would include in your evaluation plan and how each would ...
March 22, 2010 by Tiara

HSM 270
I just need someone to explain this suggestion to me about a evaluation plan. I am so confused and my instructor not answering her phone. I really need help. The assignment was to describe the types of evaluations you would include in your evaluation plan and how each would ...
March 22, 2010 by Tiara

Urgent Calculus Help
Let H(x)=F(G(x)) and J(x)=F(x)/G(x). Suppose F(7)=4, F′(7)=−8 G(7)=3, G′(7)=−5 G(2)=7, G′(2)=−2 then H′(2)= J′(7)=
July 9, 2014 by Anonymous

Grammar and Composition
1. Christina and Christopher worked together and completed a project about astronomy. a. sentence structure is correct b. sentence contains a simple subject and a compound predicate c. sentence contains a compound subject and a simple predicate d. sentence contains a compound ...
October 16, 2009 by y912f

English
I'd like you to explain to me the use of the gerund in the following two sentences.I included other sentences I'm not sure of. 1) One day, Prospero's frieds are having a party. They only stop when the pendulum is striking the hour. 2 The protagonist is thrown into a dark ...
October 9, 2011 by Henry2

Statistics
1. Which of the following statements are correct? a. A normal distribution is any distribution that is not unusual. b. The graph of a normal distribution is bell-shaped. c. If a population has a normal distribution, the mean and the median are not equal. d. The graph of a ...
April 19, 2010 by Jackie

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