# Determine the length and breadth of a rectangle if the length is 3cm less than twice the breadth, and the perimeter is 18

40,002 questions, page 117-
## Physics

I have 2 questions...one can someone please read my question posted around noon today called Lab for physics? Thanks..and secondly, I have to derive some equation. I am supposed to show a=gtantheta and find this from m (mass) L (length). The question also

*asked by RSVP on September 30, 2007* -
## physics

A grandfather pulls his grandson, whose mass is 20kg and who is sitting on a swing with ropes of length 2.50m, backward and releases him from rest. The speed of the grandson at the bottom of the swinging motion is 3.0 m/s. What is the angle (in degrees

*asked by unknown on June 13, 2011* -
## PHYSICS

Two identical teflon rods are 10 centimeters long and rubbed with fur so that they each have a total negative charge of 20 microCoulombs that is uniformly distributed along their length. They are arranged along the same axis, with their ends 5 centimeters

*asked by Ramana on January 27, 2014* -
## Math

Clip company produce different sizes of chocolate bars that are package in equilateral triangular prism here is the 100-g of chocolate bar Height:3.1cm Triangle side: 3.5cm Length: 21cm Calculate the surface area and volume

*asked by Connie on May 6, 2017* -
## English

Which of the following lines from the poem "Lines Composed a Few Miles Above Tintern Abbey" is NOT strict blank verse? A. "And passing even into my purer mind" B. "The Landscape with the quiet of the sky" C. "Five years have past; five summers with the

*asked by Justine on August 1, 2016* -
## Physics

The boom weighs 2450 and is attached to a friction less pivot at its lower end. It is not uniform; the distance of its center of gravity from the pivot is 39.0 of its length. Picture Link: tinypic./view.php?pic=53qp3m&s=5 What is the tension in the guy

*asked by John on April 27, 2013* -
## PHYSICS

Two identical teflon rods are 10 centimeters long and rubbed with fur so that they each have a total negative charge of 20 microCoulombs that is uniformly distributed along their length. They are arranged along the same axis, with their ends 5 centimeters

*asked by Ramana on January 27, 2014* -
## Applied Calculus

If an open box has a square base and a volume of 112 in.3 and is constructed from a tin sheet, find the dimensions of the box, assuming a minimum amount of material is used in its construction. (Round your answers to two decimal places.) Height: Length:

*asked by Jacob on March 12, 2013* -
## physics

An athlete leaves one end of a pool of length L at t = 0 and arrives at the other end at time t1. She swims back and arrives at the starting position at time t2. If she is swimming initially in the positive x direction, determine her average velocities

*asked by Leah on January 22, 2015* -
## physics

You are driving on a very long, very straight 2 lane road, stuck behind a lorry which travels at a constant 75 km/hour. You want to overtake the lorry, which has a length of 12.0 m. You car is 3.8 m long. To overtake the lorry, and to do this safely, you

*asked by Anonymous on October 17, 2015* -
## physics

You are driving on a very long, very straight 2 lane road, stuck behind a lorry which travels at a constant 75 km/hour. You want to overtake the lorry, which has a length of 12.0 m. You car is 3.8 m long. To overtake the lorry, and to do this safely, you

*asked by Physics on October 17, 2015* -
## Physics

An ant crawls on a tabletop. It moves 2cm East, turns 3cm 40(degrees) North of East and finally moves 2.5cm North. What is the ants total displacement?

*asked by Helpme on June 19, 2012* -
## calculus

A document is to contain 80cm squared of print. The margins at the top & bottom are each 2cm wide and margins on each side are 3cm wide. What should be the dimensions (in cm) of print so that a minimum amount of paper is used?

*asked by Khateeb on March 18, 2012* -
## Physics

I think I might be on the right track, if someone could let me know if this is correct I would greatly appreciate it. A 51 kg diver is spinning forward in a tuck position at 1.9 rev/s, as shown in Fig. 13-38a. In this position, the diver's rotational

*asked by Dirk on November 9, 2012* -
## Physics urgent help needed!

Suppose the position of an object is given by ->r(vector) = (3.0t^2*ihat - 6.0t^3*jhat)m. Where t in seconds. Determine its velocity ->v as a function of time t. Determine its acceleration ->a as a function of time t. Determine ->r at time t = 2.5 s.

*asked by How do you do this? on September 13, 2009* -
## Math(PLZ HELP)

1)Choose an appropriate metric unit for the mass of a paper clip. A. meter B. gram C. kilogram*** D. centimeter 2)Which is likely to have a mass close to 3 kilograms? A. small feather B. five year old cat C. grown elephant D. peach*** 3)which measure

*asked by sparkels_01 on April 1, 2016* -
## College Chemistry

For the reaction that occurs in the voltaic cell Fe(s)|Fe2+(aq)||Cr3+(aq),Cr2+(aq)|Pt(s) use data from Appendix D in the textbook to answer the following questions: a)Determine the equation for the cell reaction b)Determine E0 cell c)Determine ΔG0

*asked by Brandon on May 17, 2015* -
## physics

A homogeneous rod AB=100 cm of mass m=4kg is suspended from a fixed roof by means of two very light strings OA and O'C having the same length point C is at 20cm from B , rod AB is in a horizontal position of equilibrium Make the inventory of the forces

*asked by sara on January 13, 2016* -
## physics

please,i need help on this question:a thin circular ring of radius 20cm is charged with a uniform charge density(rho),if a small section of 1cm length is removed from the ring.calculate the electric field intensity at the center of the ring

*asked by culata on May 16, 2010* -
## physics

A textbook is 23cm long, 18cm wide and 4cm deep and its mass is 1.8 kg. Find the work required to accelerate it from rest to an angular speed of 2.75 rad/s spinning about the: -length axis -width axis -depth axis

*asked by Jadyn on October 28, 2010* -
## physics

Two identical 1.60 {\rm kg} masses are pressed against opposite ends of a spring of force constant 1.85 {\rm N}/{\rm cm}, compressing the spring by 25.0 {\rm cm} from its normal length.Find the maximum speed of each mass when it has moved free of the

*asked by Anonymous on December 23, 2011* -
## Math 6th Grade

Bob is planting in a rectangular container. In the center of the container he places a smaller rectangular tub with mint. The tub is 8 in. by 3 in. He plants flowers around the tub. What is the area of the container planted with flowers? The whole

*asked by Jerry on May 30, 2017* -
## math-PLEASE CHECK AND HELP

find the surface area and volume of the right circular cylinder. The radius is 3 and height 6. This is what I put for volume: v=pir^2h pi(3cm)^2 6 cm= 54pi cm cubed can you please check this and show work on how to do the surface area? Thanks.

*asked by crystal on May 16, 2010* -
## Math

A paper cone has a base diameter of 8cm and a height of 3cm(a) use Pythagoras theorem to calculate it's slant height (b)if the cone is cut and opened out into the sector of a circle what is the angel of the sector

*asked by Joy on May 30, 2016* -
## addmath A.P.

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

*asked by mandy on January 18, 2015* -
## physics

How do i figure out the direction for this problem: A wire having a mass per unit length of 0.500 g/cm carries a 2.00 A current horizontally to the south. What is the direction of the minimum magnetic field needed to lift this wire vertically upward?

*asked by blasting(right hand rule) on August 18, 2010* -
## Physics

The longer a straw, the harder it is to drink from. If the air pressure is 93300 Pa, and if you could create a perfect vacuum in your mouth, what is the maximum length of a straw that you could still drink from? Density of water: 1000kg/m3. Ignore

*asked by Maree on November 10, 2010* -
## Algebra

I need someone to explain to me how to answer this problem. Use your design and analysis to write a website posting describing the process readers can use to make a string of pennant flags using any length string and any size square. Your posting should

*asked by ShAnEdAwSoN on October 11, 2018* -
## Mathematics

Dear Jiskha, I will appreciate if you can show me step by step how this geometry math question is solved. Using the Pythagorean Theorem,how do i find the length the unknown side 'b'. Side 'a' has a measurement of 1...the hypotenuse: a square root of 2.

*asked by Ryan on August 19, 2008* -
## geometry

The limestone blocks from which an ancient pyramid was made weigh about 2 tons per cubic yard. Find the approximate weight of the pyramid having a square base of length 250 yards and a height of 150 yards.

*asked by Kristen on April 21, 2009* -
## physics

Two trains A and B of length 400 m each are moving on two parallel tracks with uniform speed of 72 km/h in the same direction with A ahead of B. The driver of B decides to overtake A and accelerates by 1 ms-2. If after 50 s, the guard of B just brushes

*asked by chimatiro on March 27, 2019* -
## science

A weight of 500kg is suspended by two chains 1.5m and 2.7mrespectively.the chains are attached to a beam that is 3.746m in length. The distance from the suspension to the ground being 900m. A.Calculate the load. B.the vertical and horizontal reactions at

*asked by iris on July 5, 2017* -
## physics

What is the pressure gradient (the drop of pressure per length unit) in a blood vessel with a volume flow rate of ΔV/Δt = 54 cm3/s and an inner diameter of 7 mm. Hint: the viscosity coefficient of blood in the specific case we study is ηblood= 2.7 x

*asked by hilary on December 2, 2009* -
## Physics

1) How much longer would it take for light to travel through 1.0 km of water than 1.0 km of air? What formula do you use? The answer is 1.1 x 10^-6 s 2) The acetate roll on overhead projector is placed at a distance 1.2f from the lens. (where f is the

*asked by anonymous on June 17, 2012* -
## PHYSICS_URGENT

What is the pressure gradient (the drop of pressure per length unit) in a blood vessel with a volume flow rate of ÄV/Ät = 35 cm3/s and an inner diameter of 15 mm. Hint: the viscosity coefficient of blood in the specific case we study is çblood= 2.7 x

*asked by Anonymous on March 31, 2011* -
## functions

Given a 10 cm by 20 cm piece of paper, if you cut out four equal squares from the corners and fold up the resulting sides you will create an open box. Write an expression for the volume of this box in terms of the side length of each cut‐out square, x.

*asked by RRR on May 5, 2015* -
## physics

a disk has a mass of 2kg and a length of 2 meters and it oscillates about an axis that is 1.5 meters from the center of the disk. It is initially displaced at an angular displacement of 0.2 radians and released. A) What is the equation of motion? B)What is

*asked by seth on November 20, 2011* -
## Math

You plan to construct a brick wall measuring 4.5 m in length, 1.2 m high, and 0.5 m in width. If a brick measures 20 cm x 9 cm x 5 cm, how many bricks will you need? Total volume (to the nearest tenth) = ________ cubic meters. The number of bricks

*asked by Leo on June 14, 2012* -
## Math (5th grade )

Kathy's mom has made a batch of lemon bars. Her treats are in a rectangular pan that measures 12" x 8". She will cut a vertical and horizontal live every 2 inches along the length and width of the pan. How many bars will each person receive

*asked by Tim on November 27, 2012* -
## ochem lab

What is the expected observed rotation of a 9.1 x 10-5 M solution of compound X? Note: compound X has a specific rotation of [α]D20 = -49o and a molecular weight of 235.2 g/mol. In addition, the path length of the cell used to take the polarimetry

*asked by cn on April 2, 2012* -
## Algebra

Given a 10 cm by 20 cm piece of paper, if you cut out four equal squares from the corners and fold up the resulting sides you will create an open box. Write an expression for the volume of this box in terms of the side length of each cut‐out square, x.

*asked by Reza on May 4, 2015* -
## Physics please help

A student doing Young's experiment measures a distance of 6.0 cm between the first and seventh nodal points on a screen located 3.0 m from the slit plate. a) if the slit seperation is 220 x10 to the -6, what is the wave length of light being used ? b) what

*asked by Fernando on June 17, 2012* -
## Physics

two identical pith balls each of mass 10 mg is suspended from a fixed point by string length of 0.5 when each ball is given a charge Q the repellent came to equilibrium each train making an angle of 30 degree with the vertical on the charge q and the

*asked by Abby on November 13, 2018* -
## Physics HELP!!

Three masses are connected by massless rigid rods. Rods AC and CB have length l= 44.8cm. If massA=280.0g, massB=386.0g, and massC=739.0g, what are the coordinates of the center of mass? (Enter your answer for the x coordinate first, followed by the y

*asked by joane on November 12, 2012* -
## Trig

Morana is trolling for salmon in Lak Ontario. She sets the fishing rod so its tip is 1 m above the water and the line enters the water at an angle of 45 degrees. Fish have been tracked at a depth of 45km. What length of line must she let out?

*asked by Kim on April 18, 2017* -
## Algebra

A rectangular garden is 54 feet longer than it is wider. Its perimeter is 292 feet. Write a system of linear equations whose solution gives the width and length of the garden. Use the substitution method to solve and check your answer.

*asked by Tracy on July 1, 2017* -
## Calculus

An open box is made by cutting squares of side w inches from the four corners of a sheet of cardboard that is 24" x 32" and then folding up the sides. What should w be to maximize volume of the box? I started by trying to get a formula for the volume which

*asked by Matt on October 16, 2015* -
## A.S.U

A ski tow operates on a slope of angle 15.4 ∘ of length 320 m . The rope moves at a speed of 12.5 km/h and provides power for 50 riders at one time, with an average mass per rider of 73.0 kg . Estimate the power required to operate the tow.

*asked by Moe on June 13, 2016* -
## Al;gebra 1

1) A family is building a patio onto the back of their house with a rectangular area in the center and equal square sections on both sides. The entire length of the patio can be no longer than 20 feet. Let p represent the width of each square section.

*asked by Gwenq on November 13, 2015* -
## physics

A simple pendulum is made from a bob of mass 0.04 kg suspended on a light string of length 1.4 m. Keeping the string taut, the pendulum is pulled to one tntil it has gained a heit of 0.1 m.calculate the total energy of the oscillation?

*asked by Abdela said yimer on January 15, 2012* -
## Algebra

Swimming space. The length of a rectangular swimming pool is 2x-1meters, and the width is x+12 meters. Write a polynomial A (x) that represents the area. Find A (5) Answer: Area=(2x-1) (x+12)sq m A=2x(x+12)-1(x+12) =2x^2+24x-x-12 =2x^2+23x-12 sq m X=5

*asked by michelle on July 28, 2010* -
## Calculus AB

A 5.5 foot man walks away from a 12 fokt lampost at a constant speed. At a given moment, let l be the length of the man's shadow (along the ground) and ket x be his distance from the lampost. Sketch a figure that represents the problem Express l in terms

*asked by Michael on July 30, 2016* -
## Physics (Difficult)

A uniform rectangular bar with cross-section 66 mm x 54 mm and of length 1.7 m has mass 16kg. It pivots about an axis prependicular to the wider face. The axis is equidistant from the edges and 170 mm from one end. What is the relevant second moment of

*asked by Alex on October 19, 2012* -
## Science

long wings are dominant to short wings in fruit flies. make a punnett square to show the predicted outcome of a cross between two parents that have both alleles for wing length. what is the ratio of flies produced?

*asked by Student on February 3, 2015* -
## Math

Find the constant of variation, K,for y = -8 varies directly when x = 12. Write an inverse variation to model the situation and answer the question. Two rectangular fields have the same area. One measures 75yd by 60yd. If the other has a length of 75yd,

*asked by ThatImNeverChangingWhoIAm on May 26, 2018* -
## MATH

Harriet needs to ship a small vase. The box she will use has a volume of 216 cubic inches. If the side lengths are all the same, what is the length of each side of the box? Hint: V = S^3 PLEASE ANSWER NICE AND NEAT AND CORRECT PLEASE AND THANK YOU!! =) :-)

*asked by Sammy, !!!Please Answer!! on November 30, 2012* -
## GENETICS

long wings are dominant to short wings in fruit flies. make a punnett square to show the predicted outcome of a cross between two parents that have both alleles for wing length. what is the ratio of flies produced?

*asked by Melissa 8th grade on February 3, 2015* -
## math

How much % above the cost price should a shopkeeper mark his good so that after allowing a discount of 10%, he should gain 26%? The diameter of a circle is 10cm. If the distance of a chord from the centre of the circle be 4cm then , find the length of the

*asked by rahim on December 20, 2015* -
## Algebra

A gardener is mowing a 20 by 40 yard rectangular pasture using a diagonal pattern. He mows from one corner of the pasture to the corner diagonally opposite. What is the length of this pass with the mower? Give your answer in simplified form. A.10 sq rt 20

*asked by Cassie on March 13, 2013* -
## Physics

A square of edge length 19.0 cm is formed by four spheres of masses m1 = 6.00 g, m2 = 3.50 g, m3 = 1.00 g, and m4 = 6.00 g. In unit-vector notation, what is the net gravitational force from them on a central sphere with mass m5 = 2.20 g? _N i + _N j You

*asked by winterWX on February 13, 2007* -
## intro to law of torts

The main difference between a claim in a contract for rescission and a claim in tort for fraud include: The remedy, the proper measure of damages. The court where the trial will be held. The length of the trial. The elements a plaintiff must prove. None of

*asked by michelle on April 22, 2012* -
## Math

The length of a piece of cardboard is two inches more than its width. an open box is formed by cutting out 4 inch squares from each corner and folding the sides. If the volume of the box is 672 cubic inches, find the dimensions.

*asked by Khelany on September 6, 2013* -
## Precalculus check answers help!

7.) Write the equation 3x + 4y – 7 = 0 in normal form. 3/5x + 4/5y + 7/5 = 0 -3/5x - 4/5y - 7/5 = 0 -3/5x - 4/5y + 7/5 = 0 ~ 3/5x + 4/5y - 7/5 = 0 8.)Write the standard form of the equation of a line for which the length of the normal is 4 and the normal

*asked by Kelsey on May 30, 2012* -
## 7th grade math ASAP please

Help please i don't understand 2, 4, and 10 quick please thanks 1. Write the following ratio in simplest form: 32 min:36 min 8:9 8:36 32:9 128:144 2. Marie saved $51. On Wednesday, she spent $8 of her savings. What ratio represents the portion of her total

*asked by Delilah on October 30, 2012* -
## Math

A minor arc of a circle subtends an angle of 105 degree at the center of the circle. If the radius of the circle is 8.4 cm, find the length of the major arc. 22/7

*asked by Kiff on June 4, 2018* -
## physics

a wire of lengh 2meter has a resistance of 4 ohms,obrain the resistance if specific resistance is doubled,diameter is doubled and the length is made three times of the first.

*asked by Zarah on April 24, 2017* -
## math

(exponents and roots) Michael wants to fence in a new garden so that the garden has an area of 625 square feet. If his garden is in the shape of a square, what is the length of each side?

*asked by cassandra on September 18, 2012* -
## Math

a regular plot of land is designed so that its length is 6 meters more than its width. the diagonal of the land is 10 meters. to the nearest tenth of a meter, what are the dimensions of the land?

*asked by Natalie on May 6, 2016* -
## maths

A hollow cylinder open at both ends is made of steel 2 cm thick. What will be the volume of steel used in making the cylinder, if the external diameter is 24 cm and the length of the cylinder is 55 cm.

*asked by Korang Rexford on December 28, 2016* -
## Geometry

ABCDEF is a regular hexagon with side length 43√4. Points G,H,I,J,K,L are chosen uniformly at random, one from each side of the hexagon. What is the expected area of hexagon GHIJKL?

*asked by Sambaran G. on May 5, 2013* -
## Math

A supporting wire is to be attached to the top of a 32-foot antenna. If the wire must be anchored 32 feet from the base of the antenna, what length of wire is required? Please explain

*asked by Mala on April 14, 2010* -
## Scientific notation

a rectngler section of land made of wheat farms has a length of 5 x 10`4 meters and a width of 6 x10`3 meters. What is the area of land in square meters?

*asked by Anonymous on June 3, 2014* -
## physics

A 19.3- gmass of gold in the form of a cube is 1.00 cmlong on each side (somewhat smaller than a sugar cube).What would be the length of the sides of a cube having four times this mass of gold?

*asked by jim on March 22, 2012* -
## Giyani high, math

The dimensions of a rectangular swimming pool are 10m by 6m, customers want the pool built 1/4 of the length and a third of its width wider. What are the new dimensions of the pool, calculate the area

*asked by Naledi on September 10, 2015* -
## 7th grade accelerated math / pre algebra

write two equivalent expressions for the area of the figure the figure is a triangle inside the triangle it says x + 4 and the #16 is written along the length of one side of the triangle. The answer is 8(x +4) and 8x + 32 but I don't know how they got it

*asked by Ardine on November 12, 2013* -
## PHYSICS

a metre rule of length AB and mass 100g is suspended on a knife egde. if a mass of 200g is placed at 25cm mark from A at what point will another mass x be suspended from B?

*asked by MATEH on August 20, 2015* -
## Math

A Quadratic Word Problem The length of a rectangular garden is 4 yards more than the width. The area of the garden is 60 square yards. Find the dimensions of the garden.

*asked by LP on January 4, 2013* -
## Math-percents

A carpenter has a wooden stick that is 84cm long.she cuts off 25% from the end of the stick .then she cuts the remaining stick into 6 equal pieces.what is the length of each piece?

*asked by Nyelle smith on January 5, 2015* -
## Math

Two squares are drawn. The larger square has area of 400 square inches. The areas of the two squares have a ratio of 1 : 4. What is the side length s of the smaller square?

*asked by Juan on September 15, 2017* -
## physics

Three uniform thin rods, each of length L = 16 cm, form an inverted U. The vertical rods each have mass of 14 g; the horizontal rod has mass of 50 g. Where is the center of mass of the assembly (x, y)?

*asked by KRISTEL on November 11, 2012* -
## Mathematics

Two points C and P lie on straight line such that C is due north of P.Another point T is 6km away from the line CP on a bearing of 150 degree from C and 40 degree from P.what is the length of the line CP?

*asked by Bright ulubi on March 3, 2016* -
## Physics

Three uniform thin rods, each of length L = 16 cm, form an inverted U. The vertical rods each have mass of 14 g; the horizontal rod has mass of 50 g. Where is the center of mass of the assembly (x, y)?

*asked by emma on November 12, 2012* -
## algebra

a triangle has a perimeter of 126 centimeters, each of the 2 longer sides of the triangle is three times as long as the shortest side. Find the length of each side of the triangle.

*asked by Barbara on September 26, 2014* -
## maths

A water tank is in the shape of a cubiod 2m high, 3m wide and 4m long. A similar tank is 1.2m high. Calculate the width and length of the smaller tank

*asked by sisasenkosi on November 6, 2017* -
## science

A cube of density 12kg/m cubed is placed in a Eureka tub and releases 0.40m cubed of water. A) What is the edge length of the cube? B) What is the mass of the cube?

*asked by bob on November 23, 2015* -
## math

A garden has a rectangular pool in it with a width that is twice its length. If the land around the pool is 4 meters on all sides and the total area of the land is 136 m^2, what are the dimensions of the pool?

*asked by grace on November 1, 2015* -
## Shadow

Write an equation to solve each problem. The sides of one cube are twice as long as the sides of a second cube. What is the side length of each cube if the total volume of the cubes is 72 cm^3? Would it be, 3x+6x=72? Thanks

*asked by Shadow on September 1, 2011* -
## Math

2 sides of a triangle are consecutive odd integers. The third side is twice as long as the shortest side. The perimeter is 22. Find the length of the shortest side. I guessed A+b+c=22 and that's as far as I got

*asked by Deborah on June 11, 2014* -
## Math

A builderis designing a rectangular patio that has a length of 12 units. Find the total number of square units the patio will cover if the width is 4,5,6, or 7 units

*asked by Shion on September 17, 2012* -
## 8th grade math

Greta is designing a page for the yearbook and needs to know the area of her 8 in. x 10 in. picture after she crops it. If she makes the length and width of the picture 5/8 of the original, how does the area of the picture change?

*asked by Elizabeth on December 13, 2010* -
## Math

Li making beaded necklaces.for each necklace,she uses 27 spacer beads, plus 5 glass beads per inch of necklace length. write an equation to find how many Li needs for each necklace.

*asked by Rodrigo on January 18, 2017* -
## physics

A 1.2 kg tether ball is hit so that it circles the pole with an angular speed of 3 radians/s. The length of the tether is 2m. What is the angle measured from the tether to the vertical pole?

*asked by Hassan on November 4, 2014* -
## principles of physics

A 19.3- gmass of gold in the form of a cube is 1.00 cmlong on each side (somewhat smaller than a sugar cube).What would be the length of the sides of a cube having four times this mass of gold?

*asked by Christie on March 21, 2012* -
## Physics E&M

A 68.0 g hollow copper cylinder is 90.0 cm long and has an inner diameter of 1.0 cm. The current density along the length of the cylinder is 1.60×10^5(A/m^2). What is the current in the cylinder? Ive tried many ways but am not getting the correct answer.

*asked by Spencer on February 12, 2008* -
## math

What is the length of the vector [5 cos theta, 5 sin theta]? If the vector [5,0] is rotated 36 degrees in the counter clockwise direction, what are the components of the resulting vector?

*asked by Sally on April 12, 2010* -
## MATH

Jack enlarged a picture proportionally .. His original picture is 4cm wide and 6cm long. If the new , larger picture is 10cm wide, what is its length?

*asked by sai tej on January 30, 2017* -
## physics

three uniform thin rods, each of length L = 16 cm, form an inverted U. The vertical rods each have mass of 14 g; the horizontal rod has mass of 50 g. Where is the center of mass of the assembly (x, y)?

*asked by rafeh on November 8, 2012* -
## physics

The mass of a solid cube is 700 g, and each edge has a length of 6.42 cm. Find the density of the cube. Answer in units of kg. d=m/v d=700/(6.42^3) 700/264.60928

*asked by Viviane on August 21, 2014* -
## Algebra

Lisa is cutting carpet for a rectangular room. The area of the room is 324ft^2 . The length of the room is 3 feet longer than twice he width. What should the dimensions of he carpet be?

*asked by Codey on May 15, 2013* -
## physics

A 19.3- gmass of gold in the form of a cube is 1.00 cmlong on each side (somewhat smaller than a sugar cube).What would be the length of the sides of a cube having four times this mass of gold?

*asked by jim on March 24, 2012*

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