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 95
1. math

a cube's length width and hight are 4 1/4 each. what is the volume of the cube?

asked by seahawks on May 20, 2015
2. maths

a cube has a volume of 27cm3 what is the length of one side of the cube

asked by molly on May 21, 2011
3. geometry

PM is the median of trapezoid KLNO. If ON = 30 centimeters and KL = 20 centimeters, what is the length of PM?

asked by Maurice on October 9, 2012
4. chem

if the length of Mg is 2.7 cm and the mass per meter of Mg is .981 how do i find the mass of the Mg?

asked by Kayla on May 28, 2008
5. physics

A Foucault pendulum with a length of 7.5 m has a period of 5.4 s. What is its frequency? What is its frequency in Hz?

asked by michelle on April 23, 2012
6. Algebra

The area of a square is 40 in². If the length of each side of the square is 2x in., what is the value of x?

asked by Anonymous on April 5, 2013
7. Math

ABC is a triangle in which B=90 if AB=6 BC=8 then calculate the length of the third side of the triangle

asked by Mike on May 3, 2017
8. math

if the diameter of circle is 18 inches what is the length in inches of retangle

asked by monie on October 26, 2016
9. geometry

The endpoint of a diameter of a circle are L(-3,-2) and G(9,-6) what is the length of the radius of the circle?

asked by dheah on October 31, 2016
10. Chemistry

What factors control the bond length in a covalent bond

asked by Anonymous on March 23, 2014
11. Math

If point A is (-3,-2) and point B is (5,5) then what is the length of segment AB to the nearest tenth?

asked by Grace on August 2, 2012
12. Chemistry

What is the bond energy of SO3 in kj/mol . What is the bond length

asked by Polly on November 25, 2009
13. math

a frame with a 19"permitter and 2"wide what is the length of this frame and what is the area.

asked by ed on January 30, 2013
14. geometry

A square has a side length of 2.3 feet. what is the area of the square?

asked by kayla on August 31, 2011

ALL MY ARE OF EQUAL LENGTH.I HAVE 2 ACUTE ANGLES AND 2 OBTUSE ANGLES. WHAT AM I?

asked by dec on October 10, 2010
16. math \$\$

k ty i have 4 more *so sorry* Carson wanted to make a cylindrical pillow for his mother's b-day the pillow was to be 15 inches long with a diameter of 6 inches and would be filled with stuffing. determine how many cubic inches of stuffing carson will need

asked by Angie on February 21, 2013
17. Math generic rectangles

Out of all problems this one I just don't know. I started it but I'm unsure .can someone help me please. Draw a generic rectangle to find each product. Then write a multiplication sentence with parenthesis for each one. 7 (1+11) So I am thinking the

asked by Jasmin on October 25, 2016
18. Math

If the width of a rectangle is increased by 2 inches, the area is 140 square inches. If the legnth is increased by 1 inch, the area is 120 inches. Find the dimensions of the rectangle.

asked by Liz on September 7, 2008
19. equation of a line

How to find a point on the line? x cordinate is given as x. The diagram is like a rectangle is inscribed in an isosceles right triangle whose hypotneus is 2 units long. AB is another side of the right triangle and P is a point on it(also a vertex of the

asked by Jen on November 19, 2006
20. geometry

Suppose the dimensions of a rectangle with a perimeter of 21 inches are doubled. What is the perimeter of the new rectangle in inches?

asked by Moriah on February 13, 2011
21. math

the perimeter of a rectangle is 22 meters, and the perimeter of the triangle is 12 meters. find the dimensions of the rectangle?

asked by alison on January 4, 2011
22. math

lisette drew a rectangle and divided it into fourths. She colored the whole rectangle. How many fourths were colored?

asked by ali on February 27, 2012
23. physics

Phy 124 – Chapter 22 Problems 1. Consider the following. A spot on a boat is 2.5 m above the water, and the light strikes the water at a point that is 8.0 m horizontally displaced from the spotlight. The depth of the water is 4.0 m. Determine the

asked by Simon on March 22, 2012
24. Urgent Math

A large rectangle is divided into 4 non-overlapping smaller rectangles by two lines. One line is parallel to the base, and the other line is parallel to the height. If the areas of three of the small rectangles are 18,24, and 40, compute the only possible

asked by Joe on May 23, 2011
25. math

A large rectangle is divided into 4 non-overlapping smaller rectangles by two lines. One line is parallel to the base, and the other line is parallel to the height. If the areas of three of the small rectangles are 18,24, and 40, compute the only possible

asked by Joe on May 23, 2011
26. Math

A large rectangle is divided into 4 non-overlapping smaller rectangles by two lines. One line is parallel to the base, and the other line is parallel to the height. If the areas of three of the small rectangles are 18,24, and 40, compute the only possible

asked by Joe on May 23, 2011
27. Maths

The radii of three concentric circles are 2cm, 3cm and 4cm Find the ratio of the shaded areas A (the second circle from the inside) and B(the outer circle) (Hint: don't substitute for pi)

asked by Math's Noob on January 8, 2012
28. Physics

An object is placed 10 cm in front of a convex mirror of focal length 4 cm. Find the image location by drawing a ray tracing diagram to scale. Verify your answer using the lens equation.

asked by Mike on November 28, 2012
29. physics

Three negative charges -1uC,-2uC and -3uC are placed at the corners of equilateral triangle. If the length of each side is 1m, find the magnitude and direction of electric field bisecting the line between the charge q1 and q3.

asked by Mahi on August 28, 2017
30. Physics

The question asks "What is the distance the lower spring is extended from its unstretched length?" what I have done is tried the equation of x=m(g-a)/k where the total mass equals 18.6 and k = 338N/m and a= 3.6 and v=-2.9, I got .34m which then converts to

asked by Yahaira on October 14, 2018
31. Physics

A 0.9 kg object that stretches a spring 2.5 cm from its natural length when hanging at rest oscillates with an amplitude of 8.1 cm. Find the total energy of the system. The acceleration due to gravity is 9.81 m/s2. Answer in units of J

asked by Maxx on December 5, 2011
32. Physics

Three weights are attached to the corners of an equilateral triangle (side length 10 cm) made from stiff but very light wire. Measured from the bottom left corner, what is the center of mass of this object if M1 = 0.1 kg, M2 = 0.2 kg, and M3 = 0.3 kg?

asked by Paige on February 21, 2011
33. Trigonometry

Round answer to two significant digits A telephone pole 40 feet high is situated on an 13° (H) slope from the horizontal. The measure of angle CAB is 21°. Find the length of the guy wire AC.

asked by Karen on November 8, 2014
34. Algebra

My textbook didn't thoroughly explain this unit very well and now I'm having trouble solving this problem. Can someone help me? Find the length of the missing side of a right triangle if the hypotenuse(hyp) is 4(radical) 3 and the opposite leg(opp) is 2.

asked by Kathy, on May 4, 2019
35. College Physics

Three weights are attached to the corners of an equilateral triangle (side length 10 cm) made from stiff but very light wire. Measured from the bottom left corner, what is the center of mass of this object if M1 = 0.1 kg, M2 = 0.2 kg, and M3 = 0.3 kg?

asked by Sararh on February 22, 2011
36. trig

If a triangle has an area of 50 square units and has angles that measure 15, 65, and 100 degress, find the length of the shortest side to the nearest tenth. Do not round till the final answer.

asked by A on April 3, 2011
37. Mathematics

The area of one of the faces of the cube below is x^2+2x+1 cm^2. Find an expression in mixed radical form for the length of the interior design. plzzzzzzzzzzzzz helppppppppp on thisssss. On my previous question I even showed my work

asked by Angel on November 16, 2016
38. Physics - Work and Energy

Jane, looking for Tarzan, is running at top speed (3.6 m/s) and grabs a vine hanging vertically from a tall tree in the jungle. How high can she swing upward? Does the length of the rope matter?

asked by DJ on November 16, 2009
39. algebra

A college is planning to construct a rectangular parking lot on land bordered on one side by a highway. The plan is to use 520 feet of fencing to fence off the other three sides. width length

asked by mm on February 7, 2016
40. trig

If a triangle has an area of 50 square units and has angles that measure 15, 65, and 100 degress, find the length of the shortest side to the nearest tenth. Do not round till the final answer.

asked by A on April 3, 2011
41. Trigonometry

Round answer to two significant digits. A telephone pole 40 feet high is situated on an 13° (H) slope from the horizontal. The measure of angle CAB is 21°. Find the length of the guy wire AC.

asked by Karen on October 22, 2014
42. Math?

What is the lateral area of the rectangular prism round the answer to the nearest whole number. assume the 5 m x 7 m rectangles on the left and right are the bases. Length = 16. 230 m^2 294 m^2 384 m^2 454 m^2 Please help!? I am so lost...

asked by SkatingDJ on May 6, 2016
43. Philosophy 130

What ought you to do for a pregnant woman who asks your help in getting to the hospital, according to your understanding of the main ethical theories, i.e. egoism, universal consequentialism(utilitariansim), and Kantian deontological theory? Suggested

asked by Samantha on February 24, 2009
44. physics

in michelson-morley experiment the wavelength of the monochromatic light used is 5000A.calculate the expected fringe shift on the basis of stationary ether hypothesis if the effective length of each path is 5m.given c=3*10^8m/s

asked by biniya on November 26, 2011
45. Physic

3 identical spheres are given equal amount of charge and hang from a common point with 3 massless string .each of length l .as that the lines of these charges will form an equilateral triangle .find and the side

asked by Shivam tiwari .euro on March 27, 2017
46. Selam

A real object is placed in front of a diverging lens, at a distance less than the focal length. When the object is moved slightly closer to the lens, which direction does the image move? away from the lens. doesn't move. closer to the lens. -- I know this

asked by physics on January 21, 2015
47. Geometry

the city council is planning a new city park on a triangular plot of land formed by three intersecting streets the designer placed the triangle on a grid to determine the side lengths and angle measures needed for the purchase and placement of a fence

asked by Anonymous on November 23, 2015
48. geometry

the city council is planning a new city park on a triangular plot of land formed by three intersecting streets the designer placed the triangle on a grid to determine the side lengths and angle measures needed for the purchase and placement of a fence

asked by Hien Kieu on November 30, 2018
49. math

Plywood is sold in rectangle sheets 4 feet wide and 8 feet long. How many 4x8 sheets of plywood are needed to completely cover a rectangle shaped floor measuring 16 feet by 12 feet. 6 7 8 9 32 192

asked by help me!!! on July 9, 2013
50. Math

which statement is a true statement? All rectangles are squares All squares are rectangular •• Every rhombus is a rectangle Every rectangle is a rhombus Correct me if I'm wrong!!

asked by Vanessa on February 5, 2016
51. Calculus

A rectangle is to be inscribed under the curve y=4cos(.5x). The rectangle is to be inscribed from x=0 to x=pi. Find the dimensions that give max area and what is the max area.

asked by Will on February 1, 2018
52. math

Chord BC is drawn in a circle with a radius of 3cm. Chord BS is 4cm long. Find the perpendicular distance from A to chord BC

asked by Becky on January 20, 2013
53. Calc II

For the following question, we need to find the length of the polar curve: r= 2/(1-cosx) from pi/2

asked by Jenna on December 13, 2009
54. math

The tangent from point T touches a circle at R.If the radius of the circle i 3cm and T is 5cm from the center of the circle.Calculate/TR/.

asked by Raha on September 17, 2011
55. Aptitude

A rectangular lawn is 50 m long and 30 m wide it has roads 2 m wide joining the mid points of opposite sides and also a path of same breadth is running along inside the lawn what is the total area of roads and paths

asked by Shivangi on June 14, 2017
56. Chemistry

Hi was looking to get some help with an experiment. Currently I trying to determine the amount iron in cereal. And was hoping to get some help with one of the questions I have been given. First off I am the recorded absorbance across the region 470 – 490

asked by Josh on October 14, 2014
57. Help me with this math ms sue.

1. Find the lateral area of a cone with a radius of 7 ft. and a slant height of 13 ft. Use 3.14 for π and round to the nearest tenth. (1 point) 439.6 ft2 324.5 ft2 571.5 ft2 285.7 ft2 2. Find the surface area of a square pyramid with a base length of 24

asked by josh on March 6, 2014
58. physics

A guitar string is 92 cm long and has a mass of 3.7 g. The length L from the bridge to the support post is 65 cm, and the string is under a tension of 570 N. What is the frequency of the fundamental tone thanks!

asked by BG on May 14, 2013
59. geometry

The rectangular label will completely cover the lateral surface of the can using as little paper as possible. If the can has a height of 12 cm and a diameter of 5 cm, then what are the width and length (to the nearest centimeter) of the label?

asked by Austin on January 24, 2011
60. math

Take 90 cm as the two sides of a triangle (Line B and C), with an angle of 32 degrees (Degree 'a'). Use the Law of Cosine to find out Line A's length. Round it up to the nearest digit.

asked by Anonymous on November 23, 2010

Suppose that the area between a pair of concentric circles is 49pi. Find the length of a chord in the larger circle that is tangent to the smaller circle.

asked by BillyBobJoe on August 22, 2015
62. Maths

The length of a fence of a trapezium ABCD is 130m side ab is perpendicular to each of the parallel side AD &BC.if BC =54cm,AD=19cm,&AD=42cm,find the are of the field

asked by Kritika Khanna on January 26, 2017
63. math

A rectangular tablecloth is 2.5 m long. Trim is to be sewn around the perimeter of the cloth but there is not enough. What decrase in width will make the perimeter 0.4m shorter if the length remains the same?

asked by Anonymous on January 23, 2017
64. Physics

A 150m long train is moving with uniform velocity of 45km/hr.The time taken by the train to cross a bridge of length 850 meters is

asked by Raj on February 8, 2018
65. Calculus

A cardboard box of 32in^3 volume with a square base and open top is to be constructed. What is the length of base that will minimize the surface area?

asked by ASAP on March 20, 2012
66. algebra math 209

swimming space. The length of a rectangular swimmung pool is 2x-1 meters, and the width is x+2 meters. write a polynomial A(x) that represent the area. Find A(10)

asked by Anita fields on August 17, 2010
67. physics

A particle of mass M attached to a string of Length r is whirsted round in a circle with a speed U.. find the form of the expression for the tension in the string?

asked by MR TRUMP★★★ on April 1, 2019
68. Physics

You swing one yo-yo around your head in a horizontal circle. Then you swing another yo-yo with twice the mass of the first one, but you don't change the length of the string or the period. How do the tensions in the strings differ?

asked by David on April 21, 2010
69. Physics

A lady applies makeup using a concave mirror with a focal length of 10 cm. At a distance of 6 cm from the mirror, how large does her 4 cm wide eye appear? Solve mathematically

asked by Desperate on May 20, 2013
70. maths

THIS IS NOTHING TO DO WITH A LADDER A fence 3m tall is erected vertically and parallel to a building that is 10m away please can someone tell me the maximum length of the shadow the fence will cast on the ground - thank you

asked by AJ on November 4, 2015
71. geometry

A tetrahedron is a triangular pyramid in which each face is an equilateral triangle. Calculate the volume of a tetrahedron that has all its edges 6 cm in length. Hint: You will need to know some geometry and trigonometry.

asked by Lucas on May 15, 2012
72. Geometry

Two parallel chords lies on opposite sides of the centre of a circle of radius 13cm. Their length are 10cm and 24cm what is the distance between the chords

asked by Temi on March 5, 2014
73. physics

Your friend is far-sighted with a near-point distance of 512 cm. What should the focal length be for the lenses in his reading glasses? Assume the glasses are placed 2.0 cm in front of his eyes.

asked by Anonymous on March 19, 2013
74. math

a piece of fabric is cut into 12 equal lengths with 3 inches left over. Define a variable, and write an expression for the length or the original piece.

asked by pedro on September 29, 2011
75. Physics

A wheel has a radius of 100 cm. How far (path length) in meters does a point on the circumference travel if the wheel is rotated through angles of (a) 30°, (b) 60 rad, (c) 60 rev, respectively?

asked by jack on February 10, 2017
76. maths

A person is cycling, parallel to a railway track, at a speed of 10 km/hr. A train travelling in the same direction at 46 km/hr, passes him in 22 seconds. Find the length of the train.

asked by Anonymous on December 28, 2012
77. Algebra

Sam is installing ceramic tiles in his bathroom. The area of each tile is 97 square inches.To the nearest inch what is the length of one side of the tile.

asked by Steve on October 18, 2013
78. algebra/trigonometry

A kite and a height of 75 meters from the ground is attached to a string inclined at 60 degrees to the horizontal. How do you find the length of the string to the nearest meter?

asked by Christie on May 15, 2016
79. physics

How does the resistance of a piece of metal change if both its length and its diameter are reduced to one half their original values? .. im confused because i don't know what the shape of the metal is...please help!

asked by Anonymous on March 7, 2010
80. physics

A spiral spring of natural length of 30.0cm and a constant force of 20N/m is compressed to 20cm. Calculate the energy stored in the spring.

asked by emmanuel on January 7, 2014
81. statistics

Assume that the class has 60 students and that the examination period is 90 minutes in length. How many students do you expect will be unable to complete the exam in the alloted time?

asked by Jason on March 3, 2012
82. physics

A spiral spring of natural length of 30.0cm and a constant force of 20N/m is compressed to 20cm. Calculate the energy stored in the spring.

asked by emmanuel on January 7, 2014
83. Physics

Two converging lenses with the focal lengths of 40 cm and 20 cm are 10 cm apart. a 2.0-cm-tall object is 15 cm in front of the 40-cm-focal-length lens. Calculate the image position and height.

asked by Ashley on April 27, 2010
84. college algebra

A roll of 640 feet of chicken wire is used to enclose a rectangular vegetable garden.Express the area A of the garden in terms of its length (x)

asked by k on March 23, 2013
85. math

An art class is planning to paint a rectangular mural with an area of 60 square ft. It has to be at least 4 ft. but no more than 6 ft. High. How long could the mural be if the length and height have to be whole numbers?

asked by Mya on March 16, 2015
86. college algebra

A roll of 640 feet of chicken wire is used to enclose a rectangular vegetable garden.Express the area A of the garden in terms of its length (x)

asked by k on March 23, 2013

A rectangular tablecloth is 2.5 m long. Trim is to be sewn around the perimeter of the cloth but there is not enough. What decrase in width will make the perimeter 0.4m shorter if the length remains the same?

asked by vana on March 2, 2009
88. geometry

What is the area of a regular pentagon with a side length of 10 inches and a distance from the center to a vertex of 10 inches? Round your answer to the nearest tenth.

asked by Katie on June 13, 2012
89. Physics

A skateboarder, with an initial speed of 2.6m/s , rolls virtually friction free down a straight incline of length 18m in 3.3 s. What angle is the incline plane?

asked by Whitney on October 8, 2013
90. Physics

A thin uniform rod of length 2m is bent at 90 degree angle from the mid point . find the centre of mass of bent road

asked by Anonymous on September 21, 2015
91. Math (Trig)

Find the indicated ratios in the triangle. Right triangle with a height of 2.56cm length of 4.65cm and hypotenuse of 5.31cm a. tan A b. cos C c. sin C How do I figure this out?

asked by Nj on January 7, 2013
92. Math

A trough has width w=4ft, length L=19ft, and height h=7ft. Find the work to pump all of the water over the top of the trough with units.

asked by Nat on February 14, 2018
93. Chemistry 101

A 16 Gauge wire has a diameter of 0.0508 inch. Calculate the length in meters of a 5.00 pound spool of this wire. The density of copper is 8.92g cm^-3

asked by Scott L on January 17, 2016
94. Physic

A spring 20cm long is stretched to 25cm by a load of 50N.What will be its length when stretched by 100N assuming that the elastic limit is not reached?

asked by Bamiduro on May 15, 2014
95. Physics

A wire is made of a material with a resistivity of 2.08184 × 10−8 Ω · m . It has length 4.42917 m and diameter 0.6763 mm . What is the resistance of the wire? Answer in units of Ω. Would you just use the equation R = PL /a?

asked by Jeff on March 8, 2016
96. Chemistry

the atomic spectrum of lithium has a strong red line at 670.8 nm. what is the energy of each photon of this wave length? What is the energy of 1 mole of these photons?? -do you use the e=h x v ??

asked by Cali on February 18, 2016
97. Physics

3 identical point charges Q are placed at the vertices of equilateral triangle (length of each side is equal to 2m) if Q=60uC, what is the magnitude of Electrostatic force on any one of the charges.

asked by chris on February 8, 2017
98. Chemistry

the atomic spectrum of lithium has a strong red line at 670.8 nm. what is the energy of each photon of this wave length? What is the energy of 1 mole of these photons??

asked by Maxx on February 18, 2016
99. math

Find the weight of the contents of a right rectangular prism with length 13 ft, width 6 ft, and height 2.5 ft if the contents weigh 0.02 pounds per cubic inch. I think the answer is 31.2 but I'm not sure. Is this right?

asked by robert on November 13, 2007
100. Physics

A shear force of 3.1 105 N is applied to an aluminum bar of length L = 19 cm, width w = 5.2 cm, and height h = 2.3 cm as shown in the figure below. What is the shear deformation Äx?____m

asked by Robert on December 5, 2012