
Science
My task is to find the thickness of a piece of tin foil. I cut out a square 100mm by 100mm. I weighed it's mass and got .65g Tin foil has density of 2.7... So then Volume = .65/2.7 g/cm^3 I get .24 g/cm^3 The teacher said to get my answer in millimeters so
asked by Anonymous on September 16, 2008 
math
Four accounting majors, two economics majors, and three marketing majors have interviewed for five different positions with a large company. Find the number of different ways that five of these could be hired. One accounting major, one economics major, and
asked by Dana on May 4, 2008 
math check
Would some please check these and see if I am doing them right thank you 1. Gasoline is about $2 per gallon. You use about 1 1/2 gallons each day driving to and from work. How much should you budget for gasoline over the next month (about 20 workdays)?
asked by tara on January 5, 2007 
Algebra: Statistics
Five years ago, you bought a house for $151,000, with a down payment of $30, 000, which meant you took out a loan for $121,000. Your interest rate was 5.75% fixed. You would like to pay more on your loan. You check your bank statement and find the
asked by Pamela on December 14, 2011 
Geometry HELP!!!
What happens to the graph of the line y = 3x 2 when the equation is changed to y = 3x +6? What happens to the graph of the line y = 2x  5 when the equation is changed to y = 5x + 6? On the first question: What happens to the graph of the line y = 3x 2
asked by Margie on October 10, 2006 
Physics Help
While a person is walking, his arms swing through approximately a 45° angle in .530s. As a reasonable approximation, we can assume that the arm moves with constant speed during each swing. A typical arm is 70.0 cm long, measured from the shoulder joint.
asked by GG on February 16, 2012 
Physics
While a person is walking, his arms swing through approximately a 45° angle in .530s. As a reasonable approximation, we can assume that the arm moves with constant speed during each swing. A typical arm is 70.0 cm long, measured from the shoulder joint.
asked by GG on February 16, 2012 
Algebra
I'm not quite sure about these problems. I know how to do them, but it seems that I get the wrong answer. Maybe I'm supposed to get 'no solution' but I'm not sure. Could someone please help me with them? 565x=15x35 23x7=10x8 1/44x+7=8x+16 Ok for
asked by Maria on September 14, 2006 
college Algebra
Please explain with complete step by step instructions. #8)One type of lawn fertilizer consists of a mixture of nitrogen, phosphorus and potassium. An 80lb sample contains 8 move lbs of nitrogen and phosphorus than potassium. There is 16lb more potasssium
asked by Lee on November 22, 2010 
college
Please explain with complete step by step instructions. #8)One type of lawn fertilizer consists of a mixture of nitrogen, phosphorus and potassium. An 80lb sample contains 8 move lbs of nitrogen and phosphorus than potassium. There is 16lb more potasssium
asked by Lee on November 23, 2010 
greek mythology
1.All the following were writers of ancient Greek plays and poetry exept a.Homer b.Sophocles c.Joseph Campbell 2.Chaos gave birth to the following exept a.Uranus(heaven) b.Tartarus(under earth) c.Gaea(earth) 3.Gaea gave birth to the following exept
asked by Josh on January 22, 2007 
geometry/trig
Initially a fifty foot ladder rests against a wall. As I start to climb it, the ladder slides down, finally stopping such that the ladder touches the wall at a point 8 feet below where it originally touched the wall. During the slide, the base of the
asked by eman on April 15, 2015 
Chemistry 12
Hi, I did the acidbase titration lab with HCl and 0.5M NaOH. I need to calculate the moles of NaOH from molarity of NaOH and the average volume used. My English isn't good but is it asking me to find the moles of NaOH using the molarity of NaOH and the
asked by Kim on June 2, 2015 
Math Statistics
An amusement park, Dino World, considering adding some new attractions, conducted a study over several typical days and found that, of 10,000 families entering the park, 1020 brought just one child (defined as younger than age 12), 3370 brought two
asked by Ray West on November 13, 2013 
Chemistry
I'm supposed to calculate the rate equation, including k, for the reaction whose data is given in the table: Experiment: 1 2 3 Initial Concentration X: 0.10, 0.10, 0.60 Initial Concentration Y: 0.20, 0.10, 0.10 Measured Initial Rate: 2.57, 1.25, 1.27 (I
asked by SarahF275 on January 8, 2018 
college chem
Ammonium carbonate (solid) decomposes when heated to produce three gaseous products  ammonia, water, and carbon dioxide. 1. Write the balanced equation for the reaction. 2. Suppose that ammonium carbonate is heated to 500 K in a sealed vessel. At
asked by jake on May 18, 2010 
physics
A car is traveling at a constant initial velocity of 100km/h on a level portion of road. It encounters a 6 percent incline (tan(theta)= 6/100) at point A and the car decelerates at a constant rate of gsin(theta). Find the speed of the car (a) 10 seconds
asked by Jessi on October 4, 2009 
Math
A company manufactirung snowboards has fixed costs of $200 per day and total cost of $3800 per day at a daily output of 20 boards. (A( Assuming that the total cost per day, C(x), is linearly related to the taotal out per dau,x, write an equation for the
asked by sandra on June 18, 2013 
chem
Ammonium carbonate (solid) decomposes when heated to produce three gaseous products  ammonia, water, and carbon dioxide. 1. Write the balanced equation for the reaction. 2. Suppose that ammonium carbonate is heated to 500 K in a sealed vessel. At
asked by jake on May 13, 2010 
physics
At a point P, the electric field is 78 N/C at 51° counterclockwise from the positive x axis. A particle of mass 4.7 kg and charge 0.11 C is located at P. Find the direction of the force on the particle: ___ degrees counterclockwise from the positive x
asked by Anonymous on September 14, 2014 
Calculus
The number of people expected to have a disease in t years is given by y(t) = A.3^(t/a) (i) If now (year 2016) the number of people having the disease is 1000, find the value of A. (ii) How many people are expected to have the disease in five years? (iii)
asked by Muhammad on November 29, 2016 
Calculus
The number of people expected to have a disease in t years is given by y(t)=A•3^(t/4) i) if now year(2016) the number of people having disease is 1000, find the value of A? ii) how many people expected to have the disease in five years? iii) when are
asked by Shah on November 23, 2016 
Calculus
The number of people expected to have a disease in t years is given by y(t) = A.3^(t/a) (i) If now (year 2016) the number of people having the disease is 1000, find the value of A. (ii) How many people are expected to have the disease in five years? (iii)
asked by Muhammad on November 11, 2016 
math
I have to find an exact solutions on the interval [0,pi) for both of these problems 1) 2sin2x = sqrtx and 2) 12sqrt2 sinxcosx = 0 I know this much: 1) sin2x = (sqrt x)/2 = 2sinxcosx = (sqrt x)/2 What do I need to do next? 2) 1/(2 sqrt2) = sinxcosx =
asked by kristie on August 1, 2006 
physics
In Figure 850, a block slides along a track from one level to a higher level after passing through an intermediate valley. The track is frictionless until the block reaches the higher level, where a frictional force stops the block in a distance d. The
asked by Anonymous on February 19, 2011 
Chemistry
Really hard Chemistry question that I need help with. Any assistance would be really helpful.? When 0.5963g of a sample containing NaNO2 and some inert material is allowed to react with excess HSO3NH2, the volume of N2 gas produced is measured. The volume
asked by Codec on May 25, 2011 
Physics
A. Use the relation 2 m m m GM g R ƒ to find the acceleration due to gravity on the surface of the Moon. You can use the following data: Mass of the Moon m M = 7.35 ¡Ñ 1022 kg. Radius of the Moon m R = 1.74 ¡Ñ 106 m. B. How does this value compare
asked by Anonymous on October 24, 2010 
Physics
A block of mass m_1 is connected by a string over a pulley to a block of mass m_2 that is sliding on a flat table. The string is light and does not stretch; the pulley is light and turns without friction. The coefficient of friction between the sliding
asked by Anonymous on October 1, 2010 
anthropology
2 key differentiators and 2 examples of anthropology compared to history and sociology. I found the definitions of each Cultural anthropologystudy of living people and cultures and they actually live with the people they study Archaeology a subclass of
asked by Karen on September 26, 2017 
physics
18g of liquid water is placed in a flexible bag, the air is excluded, and the bag is sealed. It is then placed in a microwave oven where the water is boiled to make steam at 100C. What is the volume of the bag after all the water has boiled? Assume that
asked by ana on November 19, 2009 
Chemistry
A 35.00 mL sample of water at 30.0°C is placed in an open container with an external pressure of 1.00 atm. 30.0 kJ of heat is added to the water sample. The density of water is 1 g/mL. (a) How many grams of liquid water remain at the end of the process?
asked by N on February 11, 2015 
Math.
43.The forecast predicted that Dallas County would receive eight inches of rain over the next two days. On Thursday Dallas County received 3.4 inches of rain. On Friday it rained twice with Dallas County Reciving 1.2 inches of rain each time. What was the
asked by Jerald on April 17, 2013 
Social groups
How do virtual groups differ from in person primary and secondary groups? What qualities do virtual and inperson groups share? I understand people join primary groups to satisfy their personal needs of belonging and fulfillment. Could the differences
asked by Jacky on September 20, 2016 
shortest fence
this is my last question from applications of derivatives! A 216m^2 rectangular pea patch is to be enclosed by a fence and divided into two equal parts by another fence parallel to one of the sides. What dimensions for the outer rectangle will require the
asked by Jen on November 18, 2006 
english
1. In Edgar Allan Poe’s “The Cask of Amontillado,” the literary device of foreshadowing is used when Montresor tells Fortunato (1 point) “You are a man to be missed.” “A draught of this Medoc will defend us from the damps.” “You were not to
asked by fronzilla on May 9, 2019 
TO ALL STUDENTS
Please remember these things: 1. This is a homework help website; please put your subject (math, science, English, or ??) in the subject line to make it faster for each teacher to find those questions in his/her areas. 2. Please include in your post the
asked by Writeacher on October 9, 2006 
History
3. all of the following are true about mexico city except 1 point A) it faces traffic problems B) it has pollution C) it has water shortages D) 200,000 people live there 4. A reason why many people move from small villages to Mexico City is to 1 point A)
asked by Le Sexy Male on April 22, 2015 
calculus
Find the sum of the series (1)^n (5^(2n))/n! 1. sum = e^25 2. sum = e^−5 3. sum = 5 4. sum = e^5 5. sum = 25 6. sum = e^−25
asked by Bob on September 30, 2010 
Math
A man walks a certain distance at a certain speed. If he walks 1/2 an hour faster than his usual speed, he will take one hour less to reach his destination. But if he walks 1 km an hour slower than his usual speed, he will take 3hours more to reach his
asked by Anne on July 5, 2007 
Precalculus
The roots of \[z^7 = \frac{1}{\sqrt{2}}  \frac{i}{\sqrt{2}}\]are $\text{cis } \theta_1$, $\text{cis } \theta_2$, $\dots$, $\text{cis } \theta_7$, where $0^\circ \le \theta_k < 360^\circ$ for all $1 \le k \le 7$. Find $\theta_1 + \theta_2 + \dots +
asked by SAM on January 27, 2017 
Precalculus
The roots of \[z^7 = \frac{1}{\sqrt{2}}  \frac{i}{\sqrt{2}}\]are $\text{cis } \theta_1$, $\text{cis } \theta_2$, $\dots$, $\text{cis } \theta_7$, where $0^\circ \le \theta_k < 360^\circ$ for all $1 \le k \le 7$. Find $\theta_1 + \theta_2 + \dots +
asked by SAM on January 27, 2017 
maths
Wendy and Carol each bought the same laptop at the same price. In addition, Wendy bought a flash drive and Carlo bought an infrared mouse. The flash drive cost $60. Find the cost of the infrared mouse if Carol spent $1810 and Wendy spent $1840.
asked by TT on May 14, 2015 
math
The maker of a candy that comes in the color Blue, Red, White, Green, Pink and Tan. The proportion for Blue is 0.2, Red is 0.3, White is 0.1, Green is 0.2, Pink is 0.1 and Tan is 0.1. A single candy is drawn at random. Find the probability that a candy has
asked by Ana wheeler on October 18, 2012 
Business Management and Leadership
Select an organization that you have worked for or one that you are familiar with and find the goals the organization has set. Many times this information can be found on the company's website. Search the Library and the Internet and research goal setting.
asked by Mizzy Kay on May 4, 2009 
business management & leadership
Select an organization that you have worked for or one that you are familiar with and find the goals the organization has set. Many times this information can be found on the company's website. Search the Library and the Internet and research goal setting.
asked by vicmine on April 5, 2009 
Educational Technology
1. Why is it important to have good study skills? (A)You will sleep better (B)You will learn more efficiently (C)You will have less free time (D)You will impress your parents 2. Why is it important to know how much time you spend on tasks? (A)so you
asked by Rose on January 18, 2018 
College Algebra
Problem: In certain signal detection problems (e.g. radar or sonar) the probability of false alarm (FA) (i.e., of saying that a certain signal is present in the data when it actually is not) is given by: ∞ pFA = ∫ _______1_______ x^p/21 ex/2 dx η
asked by Anonymous on November 20, 2010 
thermo
For the following problem... I found the second pressure by solving P1V1/T1 = P2V2/T2. The Volumes is const so those cancel and then i am able to find the P2. From there i looked at the 1st law and came up with delt U = Qin which = mCvdelta T but that is
asked by jody on June 17, 2007 
Business Math
John’s Bikes uses the retail inventory method. Sales at retail were $120,000.00. Net purchases were $68,000.00 at cost and $124,000.00 at retail. Beginning inventory was $32,000.00 at cost and $76,000.00 at retail. Using the retail method, what was their
asked by Murph on April 11, 2018 
Math Calculus
Three sides of a fence and an existing wall form a rectangular enclosure. The total length of a fence used for the three sides is 240 ft. Let x be the length of two sides perpendicular to the wall as shown. Write an equation of area A of the enclosure as a
asked by Livia on August 19, 2010 
ECON
A bank vicepresident declared that the probability that the bank’s funds were being embezzled was 0.70 and that the probability that an embezzlement would be discovered by the bank examiner was 0.90. Given that the bank examiner does not find the
asked by Nina on September 19, 2012 
physics
A Coast Guard cutter detects an unidentified ship at a distance of 19.0 km in the direction 15.0° east of north. The ship is traveling at 22.0 km/h on a course at 40.0° east of north. The Coast Guard wishes to send a speedboat to intercept and
asked by Mia on September 1, 2012 
Math
Can someone help me verify if this is correct? Gasoline usage for compact cars in Canada is a normal distribution with a mean of 33.3 km/l and with standard deviation of 7.3 km/L. Round your answers to one decimal place. a) What percentage of compact cars
asked by Jay on April 17, 2011 
Math
Can someone help me verify if this is correct? Gasoline usage for compact cars in Canada is a normal distribution with a mean of 33.3 km/l and with standard deviation of 7.3 km/L. Round your answers to one decimal place. a) What percentage of compact cars
asked by Jay on April 17, 2011 
PHYSICS
1...At what temp. of 0^C steel rod and copper rod have length of 800.1 & 99.9 respectively. At what temp. will the 2 rods have the same length. coeff.of linear expansion Copper.000017 steel.000013 2...The length of a brass bar increase from 4.001 into
asked by EM on March 13, 2011 
Math
n a survey, one out of three people named blue as their favorite color. Two out of seven named red. If 1,092 people were included in the survey how many named neither blue nor red as their favorite color? 416 432 540 512 2. The triangles below are similar
asked by Loomin on December 5, 2017 
MRU
suppose a population of nursing students heights is normally distributed with a population mean of 166 cm and a population stanadr deviation of 7.5cm if a female is randomly selected from this population, what is the probability that she will have a height
asked by Mike on October 31, 2011 
government
does anyone know any website that I can find about Government law to answer the following question? [c] Comrade Nikolai, a communist, wishes to hold a Saturday rally in LeBard Stadium at Orange Coast College, but several Costa Mesa citizens object. [d]
asked by dt on November 9, 2008 
Math
Can someone please help me out with these? What is the rate of inflation of an item with a Consumer Price Index of 246.8 in 1991 and 362.4 in 1992? Round your answer to the nearest tenth. 0.681 0.319 0.468 0.536 Determine the future value of an annuity due
asked by Cathy on November 9, 2009 
essay novel study need ideas and advice
Jane Austen's novels Pride and prejudice and Persuasion both illustrate the challenges of being a woman in the 1900s. The need to find security, obtain wealth, status and marriage becomes necessary for survival and fulfillment. Unfortunatly, Austen shows
asked by cin on November 7, 2008 
physics
A projectile of mass 0.777 kg is shot from a cannon, at height 6.6 m, as shown in the ﬁgure, with an initial velocity vi having a horizontal component of 7.8m/s. The projectile rises to a maximum height of ∆y above the end of the cannon’s barrel and
asked by steve on October 4, 2011 
Math ; please please help.
1. Explain in detail how to determine the value of the independent variable in a quadratic relation if the value of the dependent variable is known. Please check my answer  You would substitute the value for the dependent variable, then you would solve
asked by Amanda on April 9, 2008 
Algebra
Sound intensities, I, are often compared with the threshold of human hearing, I_0, which is about 10^12 watts per meter squared. The relative intensity, R, of a sound is given by the equation: R = 10log(I/I_0) i. The intensity of a whisper is about 300
asked by Anonymous on March 11, 2019 
Simultaneous equation
Ann is older than Betty. Their ages in years are such that twice the square of Betty's age subtracted from the square of Ann's age gives a number equal to 6 times the difference of their ages. Given also that the sum of their ages is equal to 5 times the
asked by HELP! on June 2, 2016 
math
a toy car store is ordering 3,000 remote control cars.the store can order the cars in sets of 10.how many sets of 10 does the store need to order? a.30 b.300 c.3,000 d.30,000 a.what information do you need to use? b.what do you need to find? c.how can
asked by VR on September 30, 2013 
math
Disks of radius 4 cm are cut from a rectangular plastic sheet of length 84 cm and width 24 cm. How many complete disks can be cut out? Find (a) the total area of the discs out (b) the area of sheet wasted I did it but the answers on the back of the book do
asked by Mathew on February 15, 2013 
Math
You order twelve burritos to go from a Mexican restaurant, five with hot peppers and seven without. However, the restaurant forgot to label them. You pick three burritos at random. Find the probability of the events (as a reduced fraction and as a percent
asked by Josh on June 6, 2016 
Math
The ratio of the perimeter of triangle PQR to the perimeter of rectangle ABCD is 5 : 9. All in centimeters Triangle (sides) PQ: (x3) PR: (3x5) QR: (4x+3) Rectangle (sides) AB: (2x+2) BC: (4x  1/2) [AB is longer than BC] a. Write algebraic expressions
asked by Azuka on November 4, 2018 
Math
A fishing boat leaves port at 12 miles per hour at a bearing of 70∘ for 5 hours, then turns to a bearing of 130∘ at 9 miles per hour for 5 hours, and finally changes to a bearing of 50∘ at 9 miles per hour for 2 hours. At this point, the boat heads
asked by wes on November 11, 2018 
maths
All the students in a school are made to stand in rows so as to form an equilateral triangle. The first row consists of one student, the second row 2 students, third row 3 students and so on. Had there been 90 more students, the total number of students
asked by rajshekhar on February 1, 2010 
Math
1)Adam scored x points 2)Imran scored 3 points fewer than Adam 3)Shakeel scored twice as many points as Imran Together they scored 39 points. a)How do i write in terms of x, an expression for the number of points scored by Shakeel? b)How do i write an
asked by Patterson on June 19, 2009 
algebra
6. Find the equation of each parabola described below. a) parabola with vertex (0,0) and the focus (0,7) b) parabola with focus (3,0) and directrix x=3 c) parabola with vertex (3,3) and directrix x=1 d) parabola with focus (2,1) and directrix y=5 e)
asked by samantha on June 15, 2008 
Statistics
Half of a set of the parts are manufactured by machine A and half by machine B. Four (.04) of all the parts are defective. Six percent (6%) of the parts manufacture on machine A are defective. Find the probability that a part was manufactured on machine A,
asked by nounou on July 16, 2010 
maths
If A=1+r^a+r^2a+r^3a+.......................to infinity B=1+r^b+r^2b+................to infinity then find a/b=????? Is r^2a supposed to be r^(2a) or a*r^2? In other words, is the a part of the exponent? what the heck is that? exponents are like 2 cubed or
asked by nikhil on November 11, 2006 
stats
A jar contains 7 black balls and 25 red balls. You take 2 out without replacing them. Find a)the probability of drawing 2 red balls in a row, b) the probability of drawing a red ball, then a black ball, c) the probability that the two balls will be of
asked by Sally on December 18, 2014 
English 9
Find adv. and word it modifies No matter how loudly he pounded, he still could not hear the notes. loudly (adv) pounded (word it modifies not(adv) modifies could hear Still (adv) does it modify (could hear)? Is this correct???
asked by Sweet Pea on September 13, 2014 
Maths
3 part question. 1. 4 peaches and 3 grapefruit cost £1.30. Write down an algebraic equation to illustrate this. 2. 2 peaches and 4 grapefruit cost £1.20. Write down an algebraic equation to illustrate this. 3. Find the cost of 3 peaches and 2 grapefruits
asked by Gavin on October 29, 2007 
math
ibrahim has a bag containing five red balls,six yellow balls and four white balls , the ball is pick at random from the bag.find the probability that: (a))red or white ball ? (b) yellow or red ball ? (c) not red
asked by Anonymous on April 19, 2015 
Calculus
Let f(x) = 2x^{3}+9. Find the open intervals on which f is increasing (decreasing). Then determine the xcoordinates of all relative maxima (minima). 1. f is increasing on the intervals: 2. f is decreasing on the intervals: 3. The relative maxima of f
asked by Daniel on November 4, 2014 
Math
Nathan can purchase 5 lemons for $2. Which is one way to find the number of lemons Nathan can buy with $20? A.add 6 and 2 and then multiply the sum by 20 B.add 2 and 20 and then multiply the sum by 6 C.divide 6 by 2 and then add the quotient to 20 D.divide
asked by Andrew on February 8, 2012 
Math
Out of 40 student in a class 16 study English ,22study account & 26 eco. 5 study English & eco ,14 Account & eco 2 study all the three subject if each student studies at least one of the three subject. Find the number of student who study.
asked by Ravi Yadav on August 13, 2016 
Economics  Theory of the Firm
If Average Variable Cost AVC = 10 + Q and P = 50. Find: Total Cost TC, Total Fixed Cost TFC, Total Variable Cost TVC, Average Total Cost ATC, Average Fixed Cost AFC
asked by Student55 on March 14, 2011 
math
Marcella and Ruben bought some party supplies. Marcella bought 3 packages of balloons and 4 packages of favors for $14.63. Ruben bought 2 packages of balloons and 5 packages of favors for $16.03. Find the price of a package of balloons.
asked by lee on March 19, 2018 
book
tell me your favorite book and what about it is. I have to take a survey. My favorite book is The Notebook by Nicholas Sparks because I love to read love stories and see that there is such a thing as true love. Thanks Katelyn. Can you also tell me brief
asked by Justin on September 21, 2006 
physical science (light)
1. An object 5 millimeters high is located 15 millimeters in front of a plane mirror. How far from the mirror is the image located? A. 5.0 millimeters B. 7.5 millimeters C. 15 millimeters *** D. 30 millimeters 2. Which of the following values represents an
asked by Mari on June 10, 2010 
Algebra
A motorist was to travel from town A to town B, a distance of 80 miles. He traveled the first 24 minutes at a certain rate; traffic then increased and for the next 6 minutes he averaged 10 miles per hour less than his original speed; then traffic eased up
asked by Jane on October 24, 2013 
Statistics Help
Six candidates for a new position of vicepresident for academic affairs have been selected. Three of the candidates are female. The candidates’ years of experience are as follows. Candidate Experience Female 1 Female 2 Female 3 Male 1 Male 2 Male 3 5 9
asked by Stuart on March 29, 2009 
Math
Anna and bob play a game in which Anna begins by rolling a fair dice, after which bob tosses a fair coin. They take turns until one of them wins. Anna wins when she rolls a 6. Bob wins when the coin lands on heads. What is the probability that Anna will
asked by Sam on May 31, 2010 
Math/Probability
Anna and bob play a game in which Anna begins by rolling a fair dice, after which bob tosses a fair coin. They take turns until one of them wins. Anna wins when she rolls a 6. Bob wins when the coin lands on heads. What is the probability that Anna will
asked by Ally on May 31, 2010 
physics
A light beam containing red and violet wavelengths is incident on a slab of quartz at an angle of incidence of 50.0°. The index of refraction of quartz is 1.455 at 660 nm (red light), and its index of refraction is 1.468 at 410 nm (violet light). Find the
asked by Lara on April 1, 2013 
Calculus
Find the area cut off by x=4 from the hyperbola x^2/9y^2/4=1. Answer is 4.982 in the book. I have proceeded as under: Y=2/3*sqrt(x^29) and rhe reqd. area is double of integral 2/3*sqrt(x^29) from 3 to 4. Int= 2/3*[xsqrt(x^29)/2 –
asked by MS on March 28, 2014 
physics torque and shelf
When a wood shelf of mass 6.1 kg is fastened inside a slot in a vertical support, the support exerts a torque on the shelf. The board is 32cm wide by 3cm tall. the slot is 2 cm wide (3cm tall)on the lefthand side. So there are three vertical forces. A)
asked by kelsi on May 22, 2009 
Algebra
Please check for me. 7p  7/p divided by 10p10/5p^2 = 7p^2 6x  6/x * 6x^2/8x8 = 9x/2 I'm not sure how to answer this one. x/2 divided by 9/x + 5 I think it's x(x + 5) / 18 Without grouping symbols () it is impossible to understand the problems. The ^
asked by Samantha on November 3, 2006 
PreCalc
A ferris wheel is 63 feet tall when it reaches its highest point at 8 seconds. At the bottom of the ride, you are 3 feet off the ground. So how high off the ground will you be 5 seconds after the ride starts? Write a function f so that f(t) will equal how
asked by John on January 4, 2015 
calcules
A company wishes to run a utility cable from point A on the shore to an installation at point B on the island. The island is 6 miles from the shore. It please explain it for me step by step without link it to a similar question: costs $400 per mile to run
asked by jasmine on March 25, 2014 
Calculus I
*Optimization problem* [I don't know how to get to the answer] Problem: You have a cylindrical can with radius 4cm and height 10cm. Inside is a marble with a radius that has to be larger than 0 but less than 4 cm (even the largest marble will fit
asked by Ken on November 12, 2012 
Algebraic word problem
Three friends Alex, Ben, and Casey presented a young mathematician with a puzzle. They told him that the sum of their ages add up to 98 years. Double Alex’s age and add to Ben’s gives 84 years. The sum of three times Alex’s age and twice Casey’s
asked by Mike on April 10, 2017 
College Algebra
A gift store is making a mixture of almonds, pecans, and peanuts, which sells for $4.50 per pound, $3 per pound, and $4 per pound, respectively. The storekeeper wants to make 50 pounds of mix to sell at $4.38 per pound. The number of pounds of peanuts is
asked by Gabbi on April 11, 2017 
Chemistry 11
Find the percent composition of a compound containing sodium and chlorine if 24.34g of the compound contains 13.45g of sodium. My work: Molar mass of NaCl: MNa +MCl = 22.99 g/mol + 35.45 g/mol = 58.44 g/mol Percent composition of Na: 22.99 g/mol / 58.44
asked by Christina on November 12, 2014 
physics
A hydraulic press has an input cylinder 1 m in diameter and an output cylinder 2 meters in diameter. Assuming 100% efficiency, find the force exerted by the output piston when a force of 10 Newtons is applied to the input piston. pounds If the input piston
asked by Anonymous on April 1, 2012
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