
math
A rectangular piece of sheet metal is 4 ft longer than it is wide. The area of the piece of sheet metal is 45 ft2. Find its length and width.
asked by anonymous on September 26, 2018 
Geometry(Very Urgent!!!)
Triangle NQP is an equilateral triangle with the measure of angle N=5x2y and the measure of angle P=x+2y. Find the values of x and y. Show all work to receive credit.
asked by Abbey on November 5, 2008 
math
if a rectnagular prism has a height of h, the, width of the prism is six less than h and the length of the prism is one fourth of the length, find an equation for the volume of the rectangular prism in therms of h
asked by joe on December 22, 2010 
Algebra I
The expression 2(l+w) may be used to find the perimeter of a rectangle. What are the length and width of a rectangle if the area is 13 1/2 square units and the length of one side is 1/5 the measure of the perimeter?
asked by Dev on August 29, 2010 
math
i don't understand what a horizontal or vertical stretching is of a graph. y=x^3 Find graph horizontally stretched by a factor of 4 and vertically stretched by a factor of 4
asked by jan on October 2, 2008 
algebra
A rectangle room measures 14 feet by 12 feet.find the cost of installing a strip of wallpaper around the room if the wallpaper costs $0.90 per foot
asked by Mesh a on November 5, 2013 
algebre
a flower bed is the shape of a triangle with one side twice the length of the shortest side and the third side is 30 ft more than the shortest side. find the dimentions if the perimeter is 102 ft.
asked by tina on February 13, 2011 
math algebra
the area of a rectangular garden is 120 square meters. the width is 3 meters longer than 1/3 of the length. find the legth and the width of the garden.
asked by Anonymous on February 19, 2011 
physics  electric field
a point particle with charge q= 4/5 uC is placed on the xaxis at x=10cm. A second particle of charge Q is now placed on the xaxis at x = 25cm, and its found that the electric field at the origin is zero. Find Q.
asked by J Velji on January 17, 2011 
Physics
An arrow is shot at an angle such that it's horizontal velocity is 40 m/s and it's vertical velocity is 20 m/s. Find the horizontal distance the arrow will travel before hitting the ground
asked by Erika on November 14, 2012 
4th Grade Math: Help Is Needed ASAP
My son is in the fourth grade and is needing help with these math problems. Can someone please help him with these problems. 1. 2/3+2/9= 2. 3/5+3/10= 3. 5/12+1/3= 4. Find the sum of 1/6 and 1/12 5. Add 1/4 to the answer in Exercise 4. 6. What is the sum of
asked by Tim on November 18, 2013 
physics
Use the data of this table to find the point between Earth and the Sun at which an object can be placed so that the net gravitational force exerted by Earth and Sun on this object is zero.
asked by monic on November 14, 2012 
Math
Find the equilibrium price and quantity for the supply and demand equations. d(p)=11,400−8p s(p)=2p The equilibrium price is at $ ___________ and at a quantity of_____ units.
asked by Keonn'a on October 19, 2018 
algebra
At a grocery store, the number of customers arriving per hour is shown by the function f(x) = x^+ 2x + 2. Find the number of customers that arrived in the 6th hour.
asked by samira on May 2, 2014 
Physics
The relative density of a solid is 6.5. Find (1)the mass of a solid substance cube of side 20cm. (2) the volume of the substance if the mass is 1.3kg
asked by Oluchi on August 14, 2015 
chemistry
Use the following information to find Hf of butanol [C4H9OH(l)]. C4H9OH(l) + 6 O2(g) 4 CO2(g) + 5 H2O(g) Hcomb = 2712.9 Hf of CO2(g) = 393.5 kJ/mol Hf of H2O(g) = 241.8 kJ/mo
asked by mara on October 23, 2015 
math
The iength of a rectangle is 3 inches greater than its width and its area is 88 square inches.An equation that may be used to find the width w of the rectangle is a. 3w^2=88 b. w^2/3=88 c. w^2+3w88=0 d. w^23w=88 e. w=29.3 please answer and explain
asked by thomas on May 2, 2014 
Math
There's a right triangle. There's an angle that measures 41 degrees. The hypotenuse is x, and the angle opposite 41 degrees measures 25 in length. How can I find what x is? The proportion set up is 25/x, but how do you solve for x?
asked by Angie on May 11, 2009 
science
Describe what happened to Mt. St. Helen on May 11, 1990 Please use your favorite search engine and search for Mount St. Helen. I'm sure you'll find many sites that describe this event.
asked by nikki on November 20, 2006 
Calculus
Find parametric equations for the tangent line to the curve with the given parametric equations at the specified point. x=4cos(t) y=4sin(t) z= 10cos(2t) (2sqrt2,2sqrt2,0)
asked by Mike on April 20, 2010 
calculus
Consider the region of the xy plane between the line y=7, the curve y=3sinx+4, and for pi/2 is less than or equal to x which is less than or equal to pi/2. Find the volume of the solid generated by revolving this region about the line .
asked by Sam on January 15, 2011 
physics
three point charges are placed at the following points on the xaxis: +2µC at x=0, 3µC at x=40 cm, 5µC at x=120 cm. Find the force (a) on the 3µC charge (b)on the 5µC charge.
asked by Joanna Luz on January 24, 2011 
Statistics
Suppose you have a sample of 6 observations from a normal population. The sample variance is equal to 4. Find a 90% lower confidence interval for the variance of the population.
asked by Chase on July 11, 2015 
English
Where can I find examples of the sentence pattern Pronounverbarticlenoun, conjunctionpronounverbadverb on the internet? I need 5 examples. Thank You.
asked by Jacob on January 19, 2011 
physics
A spring and mass system are oscillating with an amplitude of 8.4 cm. The spring constant is 204 N/m and the mass is 540 g. Find the mechanical energy of the system to 2 sf.
asked by jake on June 15, 2014 
chemistry
132gram o2 is required for a combustion of 28 liter mixture of ethane and ethene (at NTP) than find out mole fraction of ethane and ethene in the mixture?
asked by rekha on August 12, 2015 
Child Growth & Development
What is an example of a syntax (middle childhood related)? What is an example of a progmatic(middle childhood related) I tryed searching but didn't find anything. Any help would be greatly appreciated. Thank You~~~
asked by Michele on April 8, 2009 
PHYSICS
a motorcycle is driven 50 km west then 30 km south and 25 km 30 degree west of south show the vector diagram find the total displacement of motorcycle
asked by Dulce on July 6, 2014 
Physics
A 20.0 g marble sliding to the right at 58.8 cm/s overtakes and collides elastically with a 10.0 g marble moving in the same direction at 14.7 cm/s. After the collision, the 10.0 g marble moves to the right at 73.5 cm/s. Find the velocity of the 20.0 g
asked by Kate on February 17, 2011 
Physics
A 26.2 g marble sliding to the right at 62.0 cm/s overtakes and collides elastically with a 13.1 g marble moving in the same direction at 15.5 cm/s. After the collision, the 13.1 g marble moves to the right at 77.5 cm/s. Find the velocity of the 26.2 g
asked by D on January 8, 2014 
math
if the selling price of 16 water bottels is equal to the cost price of 17 water bottels ,find the gain per cent earned by the dealer.
asked by ekta on February 17, 2014 
physics  electric field
a point particle with charge q= 4/5 uC is placed on the xaxis at x=10cm. A second particle of charge Q is now placed on the xaxis at x = 25cm, and its found that the electric field at the origin is zero. Find Q.
asked by J Velji on January 17, 2011 
math
triangle ABC is isoceles with segment AB congruent tp segment AC. Angle A is 50. The bisectors of angle B and angle C meet at D. Find the measure of angle BDC
asked by julian on December 10, 2012 
Physics
a uniform magnetic field equal to 4 T is in the +Z direction. find the force exrted by the field on a proton if the velocity of the proton is 7km/s in the i direction
asked by Hizkel on January 25, 2018 
Math
Find the equilibrium price and quantity for the supply and demand equations. d(p)=11,400−8p s(p)=2p The equilibrium price is at $ ___________ and at a quantity of_____ units. 0 25 0 0
asked by Keonn'a on October 19, 2018 
Stat BHS 201
find the z score location of a vertical line that spearates a normal distribution as described in each of the following. a. 20% in the tail on the left b 40% in the tail on the right c 75% in the body on the left d. 99% in the body on the right
asked by jackie on October 20, 2010 
Algebra Assignment
An apple pie uses 4 cups of apples and 3 cups of flour. An apple cobbler uses 2 cups of apples and 3 cups of flour. You have 16 cups of apples and 15 cups of flour. When you sell these at the Farmer’s Market you make $3.00 profit per apple pie and $2.00
asked by Sam on December 11, 2017 
Economics (attempted as suggested by economyst)
Posted by eStone on Sunday, March 29, 2009 at 5:47pm. Suppose that a firm is currently employing 30 workers, the only variable input, at a wage rate of $60. The average product of labor is 30, the last worker added 12 units to total output, and total fixed
asked by eStone on March 30, 2009 
English
Can you please check if the following sentences are possible? I did some of the corrections myself. 1.He hoped to find Kurtz dead on his arrival at the inner station. He hoped that Marlow would find Kurtz dead by the time he got there. 2.The manager wanted
asked by Franco on October 3, 2010 
calculus
A landscape architect wished to enclose a rectangular garden on one side by a brick wall costing $30/ft and on the other three sides by a metal fence costing $10/ft. If the area of the garden is 42 square feet, find the dimensions of the garden that
asked by al on November 4, 2007 
calculus
A group of engineers is building a parabolic satellite dish whose shape will be formed by rotating the curve y=ax^2 about the yaxis. If the dish is to have a 6foot diameter and a maximum depth of 2 feet, ﬁnd the value of a and the surface area (in
asked by Sam on March 7, 2017 
quantum physics
After a .800nm xray photon scatters from a free electron, the electron recoils with a speed equal to 1.20 x 10^6 m/s. (a) What was the Compton Shift in the photon's wavelength? (b) Through what angle was the photon scattered? I got an answer for (a), but
asked by Mischa on May 7, 2008 
science
two parallel plates are separated by a dielectric of thickness 2mm and a dielectric of constant 6.if the area of each plate is 40cm2 and p.d between them is 1.5kv,find the capacitance,the energy stored by the capacitor and the ratio of the capacitance if
asked by benjamin on October 10, 2014 
Integrated science
An insect inside a bus flies from the back toward the front of the bus at 3m/h. The bus is moving in a stright line at 40m/h. What is the speed of the insect? Show you work. I was woundering if someone could help me find the math for this problem? But I
asked by John on September 23, 2007 
Geometry
Two similar pyramids have lateral areas f 20 square feet and 45 sqaure feet. The vloume of the smaller pyramid is 8 cubic feet. Find the volume of the larger pyramid. 33ft^3 27ft^3 18ft^3 12ft^3 Can some explain how to solve this.
asked by June (needs help solving) on May 16, 2018 
Physics
A car is driving at a speed of 66.0 km/h toward an intersection just as the light changes from green to yellow. The driver has a reaction time of 0.750 s and the magnitude of the braking acceleration of the car is 5.50 m/s2.Find the minimum distance the
asked by Alison Zook on September 13, 2016 
algebra
find the equation of a line with slope 4/5 and yintercept (0,7) Do I still use the formula y=mx+b? Yes. Let me know what you come up with and I'll let you know if you are correct. So far I came up with y+7 = 4/5(x0) Now I am stuck... OK, you could do it
asked by dee on January 23, 2007 
Physics
On a frozen pond, a 11.7 kg sled is given a kick that imparts to it an initial speed of v0 = 2.01 m/s. The coefficient of kinetic friction between sled and ice is μk = 0.111. Use the work kinetic energy theorem to find the distance the sled moves before
asked by Anonymous on March 16, 2016 
Pre Cal.
1. Use halfangle identity to find the exact value of cos165. MY ANSWER: (1/2)sqrt(2+sqrt(3)) 2. Solve 2 sin x + sqrt(3) < 0 for 0
asked by Danny on June 16, 2009 
math
Home health signed a 90,000 note at 11 1/2% simple interest for 180 days for electronic equipment, on October 1. On February 18, the note was sold to another firm at a discount rate of 12 1/2%. Find a) the discount period, b) the discount, and c) the
asked by Jan on June 7, 2013 
College Algebra
You have 100yds. of fencing to enclose a rectangular area. Find the dimensions which maximize the area. What is the maximum area? I know that A=L times W. I know that 100 = 2L+2w Subtract 2L from both sides: 1002L=2W Divide by two: 50L=W Substitute in
asked by Brooklyn on March 15, 2011 
Physics
I came here earlier with this question: "A force of 20 N acts toward the west. Another force acts at the same point so that the resultant of the two forces is zero. What is the magnitude and direction of the second force?" I was wondering if someone could
asked by Shelby on March 5, 2013 
Physics
We have a heat engine that produces 150 J of heat, does 40 J of work, and emits 110 J into another system. What is the efficiency of the heat engine? Please don't give me the answer! Just help figure out how to find it! The description for the lesson with
asked by Leila on December 5, 2016 
physics
An airplane whose speed is 150km/hr climbs from a runway at an angle of 20° above the horizontal. What is its altitude two minutes after takeoff? How many kilometers does it travel in a horizontal direction during this two minute period? Find the altitude
asked by Emily on October 11, 2014 
Geometry/Trigonometry
Circles with centers (2,1) and (8,9) have radii 1 and 9, respectively. The equation of a common external tangent to the circles can be written in the form y=mx+b with m < 0. What is b? I drew the diagram and the tangents but to no avail. I cannot seem to
asked by Sam on December 4, 2013 
physics
On a frozen pond, a 13.2 kg sled is given a kick that imparts to it an initial speed of v0 = 2.48 m/s. The coefficient of kinetic friction between sled and ice is μk = 0.123. Use the work kinetic energy theorem to find the distance the sled moves before
asked by Joe on February 18, 2012 
PHYSICS
Max is throwing a 57g tennis ball upward and hitting it (with a racket) when it reaches the top of its flight. If the racket exerts an average force of 440N on the ball, find the speed of the ball after the collision (if they are in contact for 4.5ms)
asked by R on April 5, 2013 
Chemistry  Quantitative analysis
A mixture weighing 7.290 mg contained only cyclohexane, C6H12 (FM 84.159), and oxirane, C2H4O (FM 44.053). When the mixture was analyzed by combustion analysis, 21.999 mg of CO2 (FM 44.010) were produced. Find the weight percent of oxirane in the mixture.
asked by RJ on January 16, 2012 
Computer science(Information Retrieval Architectur
a. Describe how the statement that “language is the largest inhibitor to good communications” applies to Information Retrieval Systems. b. Relate this to the challenges in information retrieval that make it difficult to find the information a user is
asked by Nany on April 27, 2015 
Math geometry
1) The base angles of an isosceles triangle are (50x)^6 and (30x12)^6 what is the vertex angle? 2) The area of a trapezoid is 52cm^2 if it's bases are 8 cm apart find the sum of their heights 3) What is the area of a circle inscribed inside an
asked by K on February 27, 2017 
maths
the midpoint of the line FG is (6,10). if the coordinates of G is (8,14) find the coordinates of F. There are a number of ways to solve this but I think the simplest is to use the definiton of midpoint. We know mdpt(FG) = 1/2(F+G) where FG is the segement
asked by Jen on September 7, 2006 
physics
A sled of mass m is given a kick on a frozen pond. The kick imparts to it an initial speed of 2.80 m/s. The coefficient of kinetic friction between sled and ice is 0.150. Use energy considerations to find the distance the sled moves before it stops.
asked by Emily Tran on November 18, 2012 
calculus
a closed rectangular box whose base is twice as long as it is wide has a volume of 36000 cm^3.the material for the top cost 10 centavo per sq cm,that for the sides and bottom cost 5 centavos per sq cm.find the dimensions that will make the cost of making
asked by emil on January 31, 2016 
physics
On a frozen pond, a 13.9 kg sled is given a kick that imparts to it an initial speed of v0 = 1.81 m/s. The coefficient of kinetic friction between sled and ice is μk = 0.122. Use the work kinetic energy theorem to find the distance the sled moves before
asked by taylor on October 6, 2016 
Chemistry
How do you find rate of production of Cl? If you are given the inital rate to be 3.54e5 and given measured data of .052[HgCl2] and .300[C204]? The equation is 2HgCl2(aq)+ C204(aq) goes to 2Cl+ 2Co2(g)+ Hg2Cl2(s). I thought that you may take the initial
asked by Eliz on February 23, 2009 
Algebra 2
An object is dropped from a small plane. As the object falls, its distance, d, above the ground after t seconds, is given by the formula d = –16t2 + 1,000. Which inequality can be used to find the interval of time taken by the object to reach the height
asked by Austin on July 10, 2015 
Calc
How do I do this related rates problem? A plane flying horizontally at an altitude of 1 mi and a speed of 510 mi/h passes directly over a radar station. Find the rate at which the distance from the plane to the station is increasing when it is 6 mi away
asked by Derick on November 10, 2009 
math
An architect is designing an office building with n floors that will have an FM radio antenna 15.85m tall on its roof. Each floor of the building will be 3.9m high. Which equation can be used to find the total height, h, of the building in meters,
asked by Harry on April 9, 2015 
computer
suppose the 640GB western digital hard drive install in the RAID array has failed, find a replacement drive as close to this drive as possible. print three web pages showing the size, features and price of three possible replacement
asked by Anonymous on October 15, 2011 
physics
A display sign is supported by a guy making an angle of 37o with the horizontal and by a bracket at the upper end near the vertical wall. The sign weighs 150N. Find A. The tension in wire B. The force exerted by the bracket on the sign.
asked by Chansa on May 10, 2016 
ALGEBRA 1!!!
While traveling in Egypt, Judah carefully peeked into his wallet and found that he had $80 in $10 and $5 bills. If there were 4 fewer $10 bills thn $5 bills, how many of each did Judah have? I tried this problem over and over and it just isnt clicking in
asked by HELP ME PLS!!!! IT'S TOO CONFUSING!!!! on April 10, 2018 
Chemistry
Find the pH and volume (mL) of 0.447 M HNO3 needed to reach the equivalence point(s) in titrations of each of the following. (a) 2.65 L of 0.0950 M pyridine (C5H5N) pH volume Answer = 563 mL (b) 0.188 L of 0.250 M NH3 pH volume Answer = 105 mL I can't
asked by Franklin on March 7, 2013 
Biology
I did a lab biology project on seed germination and the results weren't as expected. pH 5 worked better than pH 6 or 7 which seemed weird because surely it would be too acidic. I've been trying to find an explanation as to why I got these results and I
asked by Anonymous on January 11, 2009 
Calculus
Someone had helped me yesterday, but I need it broken down more because I honestly don't understand any of this? A plane flying horizontally at an altitude of 2 mi and a speed of 420 mi/h passes directly over a radar station. Find the rate at which the
asked by Callie on October 14, 2015 
trigonometry
A truck with 48in.diameter wheels is traveling at 55 mi/h. Find the angular speed of the wheels in rad/min, *hint convert miles to inches & hours to minutes: __rad/min How many revolutions per minute do the wheels make?__ rpm
asked by marie darling on March 15, 2013 
biology
A toxin from a poisonous mushroom has been identified as a hydrophobic weak acid. It somehow can find its way to the inner membrane of mitochondria where it gets protonated on the outer surface of the membrane but deprotonated on the inner surface of the
asked by pete on April 30, 2015 
differential equation
a four pound weight stretches a spring 8 inches from its natural lenght . the weight is pulled downward an additional 6 inches and released with an initial upward velocity of 8 feet per second . find a formula for the position of the weight as a function
asked by Anonymous on April 6, 2010 
Science, gr9
Hi, I have to write an opinionated article on the safety problems in space. I have to wrtie the issues that occur during a liftoff which are ignored I have been unable to find a website that tells me issues that occur but are ignored or thought that
asked by Fresh on April 8, 2010 
Maths
A gift box is made from a rectangular piece of cardboard that is three times as long as it is wide. 5 cm squares are cut from each corner and the ends are then folded up to make the box. If the box's volume is 4340 cm^3, find the length and width of the
asked by Carly on September 28, 2017 
religion
Find two Web sites dealing with indigenous cultures or religions. Discuss how modern civilization has affected the spiritual lives of the indigenous peoples you explored. Are indigenous religions still practiced today? If so, how have the practices changed
asked by lucy on June 9, 2010 
Chemistry
The data below was collected while performing a titration of acetic acid (in vinegar) to determine its concentration using sodium hydroxide. 150 ml of vinegar with unknown molarity 45.5 ml of .5 M NaOH was added to reach equivalence point Find the molarity
asked by Anonymous on May 16, 2016 
optimization calculus
sandy is making a closed rectangular jewwellery box with a square base from two different woods . the wood for top and bottom costs $20/m^2. the wood for the side costs $30/m^2 . find dimensions that minimize cost of wood for a volume 4000cm^3?
asked by Anonymous on March 10, 2011 
Physics
Help, I know the answer is 4.8 X 10^19, but I can not figure out how to do it or what formula to use. The question is "A charge moves a distance of 1.7 cm in the direction of a uniform electric field whose magnitude is 220 N/C. As the charge moves, its
asked by Lisa on May 22, 2012 
Biology
I did a lab biology project on seed germination and the results weren't as expected. pH 5 worked better than pH 6 or 7 which seemed weird because surely it would be too acidic. I've been trying to find an explanation as to why I got these results and I
asked by Anonymous on January 11, 2009 
calculus help please
dy/dx = 2y^2 Integrating...y=2/3 y^3 + C put 1,1 into the equation, and solve for C. Then find the y for x=2 if y= a^uhttp://math2.org/math/integrals/tableof.htm see exponential functions. dy/dx=2y^2 and if y=1 when x=1, then when x=2, y=? how do i get x
asked by bobpursley on December 10, 2006 
Physics
48.0 g of oxygen (O2 is diatomic) are confined in a rigid 1.00x10^3 L cubical container at temperature 300.0 K. Find the gas pressure and the force exerted by the oxygen gas on any of the six faces of the cube. Mass number of an oxygen atom is 16.0
asked by Lashawn on April 24, 2013 
aig math (Ms.Sue)
At the pet store ruth bought 5 rawhide bones and 3 dog collars.She gave the cashier 90$ and received $6 in chage.If a dog collar costs 3 times as much as a bone find the cost of one dog collar. My answer is 63 am i right if not please show me why and how.
asked by lidia on September 10, 2012 
Honors Chemistry
If 72.4 kJ of heat is supplied to a 752 g block of metal, the temperature of the metal increases by 9.95°C. Calculate the specific heat capacity of the metal in J/g·°C. I cannot find the information in my textbook, and I don't understand the equation
asked by Elisheva on July 21, 2014 
physicsseries and parellel circuits
I'll try to explain the schmatic drawing... a 120V battery, total of 12A, leads into a 8ohm resistor (R1), then breaks off into two parallel lines, R2 and R3. the resistance is unknown in R2, and in R3 the resistance is 3 ohms. I need to find the Amperage
asked by Dav e on May 20, 2012 
Math
Randy throw a base ball straight upwards, releasing it 6 ft above the round, and giving it an initial speed of v = 128 ft/sec. Use the formula h = 16t^2 + vt + 6 ft( where t = time , h = height ) to find the maximum height of the ball to reach this
asked by Tom on March 15, 2013 
Algebra
A large grain silo is to be constructed in the shape of a circular cylinder with a hemisphere attached to the top (see the figure). The diameter of the silo is to be 30 feet, but the height is yet to be determined. Find the height h of the silo that will
asked by Ashton on September 12, 2014 
physics
An airplane of mass 1.5x10^4kg is moving at 60m/s. The pilot then revs up the engine so that the forward thrust of the propeller becomes 7.5x10^4 N, find the speed of airplane after it has traveled 500m. Assume that the airplane is in level flight through
asked by Anonymous on October 28, 2007 
Physics
A 2.0kg siverware drawer become stuck, so the owner graually pulls with more and more force. When the applied force reaches 8.0N the drawer suddenly opens, throwing the utensils to the floor. Find the Coefficient fo static friction between the drawer and
asked by Eddie on September 25, 2007 
physics
A display sign is supported by a guy making an angle of 37o with the horizontal and by a bracket at the upper end near the vertical wall. The sign weighs 150N. Find A. The tension in wire B. The force exerted by the bracket on the sign.
asked by Chansa on May 17, 2016 
Maths
Q1. A metallic sheet of the rectangular shape with dimensions 50cm x 40cm. From each one of its corner, a square of 5cm is cut off. An open box is made of the remaining sheet. Find the volume of the box and the total surface area of the box.
asked by Freshi on February 1, 2017 
CalculusMath
The endpoints of a movable rod of length 1 m have coordinates (x, 0) and (0, y) (see figure). The position of the end on the xaxis is given in the equation below, where t is the time in seconds. x(t) = 1/8 sin(πt/4) (c) Find the speed of the yaxis
asked by Lorine on August 30, 2014 
Elementary mechanics
A force of 2i+7jN acts on a body of mass 5kg for 10 seconds. The body was initally moving with constant velocity of i2jm/s.Find the final velocity of the body in m/s, in vector form. (a)5i+12j(b)12i5j(c)10i7j(d)7i+10j
asked by jane on July 14, 2013 
Algebra II
A geyser sends a blast of boiling water high into the air. During the eruption, the height (h) (in feet) of the water (t)seconds after being forced out from the ground could be modeled by h = 16t*t + 70t. My question is how do you find the initial
asked by Adam on March 12, 2008 
math
Let L be the line with parametric equations x = −8+2t y = 4+3t z = −4 Find the vector equation for a line that passes through the point P=(−2, 1, 3) and intersects L at a point that is distance 2 from the point Q=(−8, 4, −4). Note that there are
asked by Excel on October 25, 2015 
probability
A random experiment of tossing a die twice is performed. Random variable X on this sample space is defined to be the sum of two numbers turning up on the toss. Find the discrete probability distribution for the random variable X and compute the
asked by padma.c on October 11, 2011
Pages
 1
 2
 3
 4
 5
 6
 7
 8
 9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
 100
 101
 102
 103
 104
 105
 106
 107
 108
 109
 110
 111
 112
 113
 114
 115
 116
 117
 118
 119
 120
 121
 122
 123
 124
 125
 126
 127
 128
 129
 130
 131
 132
 133
 134
 135
 136
 137
 138
 139
 140
 141
 142
 143
 144
 145
 146
 147
 148
 149
 150
 151
 152
 153
 154
 155
 156
 157
 158
 159
 160
 161
 162
 163
 164
 165
 166
 167
 168
 169
 170
 171
 172
 173
 174
 175
 176
 177
 178
 179
 180
 181
 182
 183
 184
 185
 186
 187
 188
 189
 190
 191
 192
 193
 194
 195
 196
 197
 198
 199
 200
 201
 202
 203
 204
 205
 206
 207
 208
 209
 210
 211
 212
 213
 214
 215
 216
 217
 218
 219
 220
 221
 222
 223
 224
 225
 226
 227
 228
 229
 230
 231
 232
 233
 234
 235
 236
 237
 238
 239
 240
 241
 242
 243
 244
 245
 246
 247
 248
 249
 250
 251
 252
 253
 254
 255
 256
 257
 258
 259
 260
 261
 262
 263
 264
 265
 266
 267
 268
 269
 270
 271
 272
 273
 274
 275
 276
 277
 278
 279
 280
 281
 282
 283
 284
 285
 286
 287
 288
 289
 290
 291
 292
 293
 294
 295
 296
 297
 298
 299
 300
 301
 302
 303
 304
 305
 306
 307
 308
 309
 310
 311
 312
 313
 314
 315
 316
 317
 318
 319
 320
 321
 322
 323
 324
 325
 326
 327
 328
 329
 330
 331
 332
 333
 334
 335
 336
 337
 338
 339
 340
 341
 342
 343
 344
 345
 346
 347
 348
 349
 350
 351
 352
 353
 354
 355
 356
 357
 358
 359
 360
 361
 362
 363
 364
 365
 366
 367
 368
 369
 370
 371
 372
 373
 374
 375
 376
 377
 378
 379
 380
 381
 382
 383
 384
 385
 386
 387
 388
 389
 390
 391
 392
 393
 394
 395
 396
 397
 398
 399
 400
 401
 402
 403
 404
 405
 406
 407
 408
 409
 410
 411
 412
 413
 414
 415
 416
 417
 418
 419
 420
 421
 422
 423
 424
 425
 426
 427
 428
 429
 430
 431
 432
 433
 434
 435
 436
 437
 438
 439
 440
 441
 442
 443
 444
 445
 446
 447
 448
 449
 450
 451
 452
 453
 454
 455
 456
 457
 458
 459
 460
 461
 462
 463
 464
 465
 466
 467
 468
 469
 470
 471
 472
 473
 474
 475
 476
 477
 478
 479
 480
 481
 482
 483
 484
 485
 486
 487
 488
 489
 490
 491
 492
 493
 494
 495
 496
 497
 498
 499
 500
 501
 502
 503
 504
 505
 506
 507
 508
 509
 510
 511
 512
 513
 514
 515
 516
 517
 518
 519
 520
 521
 522
 523
 524
 525
 526
 527
 528
 529
 530
 531
 532
 533
 534
 535
 536
 537
 538
 539
 540
 541
 542
 543
 544
 545
 546
 547
 548
 549
 550
 551
 552
 553
 554
 555
 556
 557
 558
 559
 560
 561
 562
 563
 564
 565
 566
 567
 568
 569
 570
 571
 572
 573
 574
 575
 576
 577
 578
 579
 580
 581
 582
 583
 584
 585
 586
 587
 588
 589
 590
 591
 592
 593
 594
 595
 596
 597
 598
 599
 600
 601
 602
 603
 604
 605
 606
 607
 608
 609
 610
 611
 612
 613
 614
 615
 616
 617
 618
 619
 620
 621
 622
 623
 624
 625
 626
 627
 628
 629
 630
 631
 632
 633
 634
 635
 636
 637
 638
 639
 640
 641
 642
 643
 644
 645
 646
 647
 648
 649
 650
 651
 652
 653
 654
 655
 656
 657
 658
 659
 660
 661
 662
 663
 664
 665
 666
 667
 668
 669
 670
 671
 672
 673
 674
 675
 676
 677
 678
 679
 680
 681
 682
 683
 684
 685
 686
 687
 688
 689
 690
 691
 692
 693
 694
 695
 696
 697
 698
 699
 700
 701
 702
 703
 704
 705
 706
 707
 708
 709
 710
 711
 712
 713
 714
 715
 716
 717
 718
 719
 720
 721
 722
 723
 724
 725
 726
 727
 728
 729
 730
 731
 732
 733
 734
 735
 736
 737
 738
 739
 740
 741
 742
 743
 744
 745
 746
 747
 748
 749
 750
 751
 752
 753
 754
 755
 756
 757
 758
 759
 760
 761
 762
 763
 764
 765
 766
 767
 768
 769
 770
 771
 772
 773
 774
 775
 776
 777
 778
 779
 780
 781
 782
 783
 784
 785
 786
 787
 788
 789
 790
 791
 792
 793
 794
 795
 796
 797
 798
 799
 800
 801
 802
 803
 804
 805
 806
 807
 808
 809
 810
 811
 812
 813
 814
 815
 816
 817
 818
 819
 820
 821
 822
 823
 824
 825
 826
 827
 828
 829
 830
 831
 832
 833
 834
 835
 836
 837
 838
 839
 840
 841
 842
 843
 844
 845
 846
 847
 848
 849
 850
 851
 852
 853
 854
 855
 856
 857
 858
 859
 860
 861
 862
 863
 864
 865
 866
 867
 868
 869
 870
 871
 872
 873
 874
 875
 876
 877
 878
 879
 880
 881
 882
 883
 884
 885
 886
 887
 888
 889
 890
 891
 892
 893
 894
 895
 896
 897
 898
 899
 900
 901
 902
 903
 904
 905
 906
 907
 908
 909
 910
 911
 912
 913
 914
 915
 916
 917
 918
 919
 920
 921
 922
 923
 924
 925
 926
 927
 928
 929
 930
 931
 932
 933
 934