area, perimeter

20,711 results, page 47
1. 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.
2. Algebra

The area of a circle is given by the formula A+pier^2, where r is the radius. If increasing the radius of a circle by 1 inch gives the resulting circle an area of 100pie square inches, what is the radius of the original circle?
3. Calculus/Derivitives

A regular tetrahedron is a four sided pyramid with each side being an equilateral triangle. Let x be the length of the triangle's side. a) Prove that the surface area of a tetrahedron is V=x(cubed)(root)2/12 b) Prove that the surface area of a tetrahedron

How does a hurricane form? a.)It forms over a warm ocean water as a low-pressure area*** b.) it forms over a warm ocean as a high-pressure area. c.) it forms over cool ocean water as a low-pressure area d.) it forms over a cool ocean water as a
5. calculus

A running circuit is to be constructed in the shape of a rectangle with two semicircles attached at the east and west ends of the path (see figure). A picnic area will be set in the center of the circuit. If we want the total length of the circuit to be
6. Math

Given that I take a piece of paper and cut it in half and then in half again. If the paper originally had an area of 187/2 in^2.What is the area of my new paper?
7. Math

The fourth largest is the Arctic Ocean. If P over 12 (p/12) stands for the approximate area of the Arctic, then what is the approximate area of the Arctic?
8. Math

Triangle XYZ is dilated by a factor 1/2. What is the ratio of the area of triangle XYZ to the area of it's image, triangle X'Y'Z'?
9. math

The Ruderman's swimming pool is 2m(shaded), 3m, 4m, 5m,and 6m. What is the total area of the pool? What is the area of the shaded part of the pool?
10. Matha

In triangle ABC,D and E are midpoints of BC and AD respectively.prove that the area of triangle ABC is four times to the area of triangle ABE
11. Algebra

A trapezoid when its height is h and the lengths of its bases are a and b. What is the area of a trapezoid when h = 6 meters, a = 5 meters, and b = 12 meters? Formula A = 1/2h(a+b) gives the area.
12. math

A square is inscribed in a circle. If the area of the square is 9 in2, what is the ratio of the circumference of the circle to the area of the circle?
13. geometry

the bases of two triangles are the same length. The altitude of the first triangle is 5 cm and the area of the second triangle is 3 times the area of the first. what is the altitude of the second triangle?
14. Math

A cylindrical tank has a height of 8 feet and a diameter of 2 3/4 feet. Use pi= 3.14 What is the lateral surface area? square feet What is the lateral surface area ? square inches If a quart of paint covers 100 square feet, how many quarts of paint will be
15. pre algebra

the midpoints of each side of triangle NOT are connected to make a smaller triangle inside triangle NOT. If the area of triangle NOT is 16 in squared, what is the area of the smaller triangle?

There is a total of 37feet of lumber? You may use as much of this as you need. Your class has raised \$121.00 to buy the sand. A bag of sand costs \$1.50. One bag will cover an area of one square foot. What is the largest sand-filled area you can make for
17. Math

A printed page is to have a total area of 100 square inches. The top and bottom margins are to be 1 inch and the side margins to be 1.5 inches. Let l represent the total length of the page and w represent the total width of the page. a) Write an equation,
18. Geometry

The coordinates of the vertices of ABC are A(-2,2) B (5, -3) and C (-4,-1) Identify the perimeter of ABC. Round each length to the nearest tenth before adding. I am totally lost!
19. geometry

An isosceles triangle has a perimeter of 147 inches.Each of the two equal lenghts is three times as long as the base.find the length of the base
20. algebra

method of substitution the perimeter of some traffic sigh must be 126 inches. Also its length is 11 inches longer than its width. Find the dimensions
21. alg 2

The width of a rectangular field is 8 feet shorter than its lenght, if l represents lenigh, write an eguation in terms of l for the perimeter of the field?
22. algebra

a rectangular sheet of plywood is seven times longer than its width,write an simlify an expression for the perimeter of the rectangle in terms of the width.
23. math

you a framing a picture that is 5 in by 7in. with a 1 inch wide frame. find the perimeter of the outside edge of the frame. explain, pleaswe i know the anser is 32 but why?
24. algebra

the length of a rectangle is 25cm twice its width the perimeter of the table must be less than 335 cm.find the maximum dimensions of the table if each dimension is an interger
25. math

Alexander's back yard is in the shape of a pentagon. The perimeter is 134 meters. Four of the sides measure 20,21,32 and 35 meters. What is the length of the fifth side?
26. Algebra

The perimeter of the rectangle is 112 units. Find the length of side PQ (bottom). . Write your answer without variables. SR (top): 4z-2 SP (side):3z+2

The square and triangle have the same perimeter 12cm.Each figure is made up of sides of equal measure.How long is each side of the triangle ?
28. Algebra

I do not understand this word problem at all. write an equation and solve. A rectangle has a length of x+6 units and a width of x-3 units. what is the perimeter in terms of x?
29. Solving Linear Equations (Math)

The length of a rectangle is 5m shorter than three times the width. The perimeter is 46m. Find the length of each side.
30. algebra

Solve the problem by writing an inequality in the perimeter of a rectangular picture frame must be less than 180in. and width is 26in. what must the height of the frame be
31. intermediate math

the length of a rectangular plot of land is 4 times the width. of the perimeter is 600 feet, find the dimensions of the plot
32. Algebra

The perimeter of the rectangle below is 74 units. Find the length of side AB . Write your answer without variables. DC (top) 4z-1 CB (right side) 3z+3 AB (bottom) unknown
33. geometry

1. The sides of a triangle, in centimetres, are given by 3n-4, 3n+9, 4n+5. Draw a diagram to show the information. If the perimeter of the triangle is 114 cm, find the length of each side.
34. algerbra

the length of a rectangle is one foot more than twice its width. If all sides were increased by 7feet the perimeter of the new triangle would be 122 ft. find the new dimensions of the new rectangle
35. Coordinate algerbra

the perimeter of a rectangular athletic football field is 132 yards. the width is 12 yards less than half the length. what are the dimensions
36. trig

1. The sides of a triangle, in centimetres, are given by 3n-4, 3n+9, 4n+5. Draw a diagram to show the information. If the perimeter of the triangle is 114 cm, find the length of each side.
37. math

the width of a rectangle is fixed at 27 cm. what lengths will make the perimeter greater than 70cm? the length must be greater than _70_ cm please check if this is correct. thank you!!
38. algebra word problems

A window is shaped like a rectangle whose perimeter is 294 in. The length is 6 times as long as the width. Find the length
39. math

the perimeter of an isosceles triangle is 30 inches. the legs are 1/3 as long as the base. set up an equation to find each side length of the triangle.
40. Calculus

In this exercise, we estimate the rate at which the total personal income is rising in a metropolitan area. In 1999, the population of this area was 942,200, and the population was increasing at roughly 9100 people per year. The average annual income was
41. math

The area of a rectangle is 84 square units. If its length is shortened by 7 units and its width by 2 units a square is formed. Determine the area of the square.
42. world war II

What were the federal departments that were established to carry out the way World War II was to be fought? http://en.wikipedia.org/wiki/Politics_of_the_United_States_during_World_War_II Check out the Cabinet listing. =) european theater and pacific
43. Maths

A pedestal is constructed in the form of frustum of a pyramid, the sides of the square ends of the frustum being 360cm and 160 cm and slant height 260cm. Find volume , lateral surface area including area of the top and the cost of construction @ rs.50
44. College Algebra

A rectangular garden plot is to be enclosed with a fence on three of its sides and a brick wall on the fourth side. If 100 feet of fencing material is available, what dimensions will yield the maximum area? (Hint: if two of the sides are labeled w, what
45. math

The shorter diagonal of a rhombus is 10 inches long, and the angle the diagonal forms with the side measures 60º. Find the area of the rhombus. I really don't know where to start. I know that the area formula for a rhombus is A=1/2*d1*d2 So if I know that
46. History

1.Which geographic features especially challenged settlers on the Oregon Trail? Cliffs and caves. State borders and plains. Rivers and mountains.** Flat grassland. 3.Why were settlers reluctant to settle in the area of Washington before 1846? It had been
47. Math

I really do not want to fail this project, could anyone please help me understand this and go through step by step with me? Thank you so much. Modern Design magazine is having a contest to design the best ice cube in one of three shapes¡Xa cube, a sphere,
48. The Holocaust

I need some important facts about the Ghettos in the Holocaust. AMOUNT OF FOOD GIVEN EACH DAY the ghettos depending on whitch area you are talking about where mostly small apartments on what was the poor side of town (before the Nazis). they where small,
49. Math

A steel wire,when bent to form a square encloses an area of 484cmsq. If the same wire is bent to form a circle,find the area of the circle. Gve me ful sltn plz nd ans is 616cmsq.
50. math

jodys has a rectangular piece of fabric 7/8 yard long and 4/5 yard wide. a)what is the area of the pieces of fabric?(I already did this one) b) jody decides to share the piece of fabric equally with her friend. what is the area of fabric each person
51. Geometry

The surface area of the sides of a right cylinder can be found by multiplying twice the number pie by the radius times the height. If a circular cylinder has radius (r) and height (h), write an expression that represents the surface area of its size.
52. Algebra 2

Tom has a backyard that is 100ft. by 60 ft. He plans to install a rectangulr swimming pool bordered by a concrete walkway of uniform width. He wants the area of the pool to take up 1/2 of the area od the entire backyard. Determine the width of the walkway
53. Math

I am to find the area of a square. It is cut in half and the line is measured at 6 square root 2. It also says that the two triangles are equallateral triangles. I know that the equation for a equalateral triangle is A = the square root of 3 times s
54. math

jodys has a rectangular piece of fabric 7/8 yard long and 4/5 yard wide. a)what is the area of the pieces of fabric?(I already did this one) b) jody decides to share the piece of fabric equally with her friend. what is the area of fabric each person
55. algebra 1

a diagram below shows an artistic design,] if the length of the outer square is 12" and the length of the inner square is 7" what is the area of the remaining glass when the smaller square is cut form the larger square? well i multiplied 12*12 and 7*7 that
56. math

Ricky is building a rectangular garden with an area of 100 square feet. He wants the length of the garden to equal 4 feet more than 2 times the width. Enter an equation that expresses the area of the garden in terms of the width, w, of the garden.
57. algebra

Write a ratio in simplified form of the area of the shaded figure to the area of the figure which encloses it. I have a square with height 5w and width 5w. Enclosing it are a right triangle on each side, which have a width of 6 and have the square's height
58. Calculus / Rates of Change

An isosceles triangle has a base that is 1.5 times the height. If the area is increasing at 9cm2/s, how fast is the height increasing when it is 12 cm high? Known: base=1.5H dA/dt=9.0cm2/s h=12cm dh/dt= ? Area for a triangle: LxW/2 After that, I am
59. maths

ria took a wire of length 44cm and bend it into a shape of circle find the radius of that circle also find its area if the same wire is bent into the shaape of square what will be the length of each of its side which figure enclose more area
60. math

A pyramid has a height of 5 in. and a surface area of 90 in ^2. Find the surface area of a similar pyramid with a height of 10 in. Round to the nearest tenth, if necessary. A.360 in. ^2 B.180 in. ^2 C.22.5 in. ^2 D.3.6 in. ^2 I think the answer is A but I
61. Geometry

A photocopier wants to enlarge a work by 120%. The original area is 10 inch^2. What would be the area of the enlarged copy? Thanks. 10^2 = 10 * 10 = 100 square inches. Find 120% (1.2) of 100 square inches by multiplying the two. I hope this helps. Thanks
62. Calc

Air is being pumped into a spherical balloon so that its volume increases at a rate of 90{cm}^3/s. How fast is the surface area of the balloon increasing when its radius is 7{cm}? Recall that a ball of radius r has volume \displaystyle V={4}/{3}pie r^3 and
63. Physics

If you have a hydraulic lift and you know the density of the oil inside, the area of the cylinder and the area of the piston and the force that needs to be applied to lift as certain weight and the weight of that object...how do you find the height that
64. Science

Describe the plant life, animal life, and geology of the ecosystem in the area in which you live. What populations and communities are present? How dependent is your community on this ecosystem? What are the limiting factors of the ecosystem? How do I find
65. Probability

You throw a beanbag at a wall with 7 colored squares, each with an area of 1/4^2. If you hit a square, you win a prize. What is the probability of winning a prize? You need more information. For starters: 1) what is the total area of the wall? 2) Are
66. math

a smaller box has dimension that half the measurements of the orignal . find the ratio of the surface area of the orginal box to the surface area of the smaller box
67. math

A garden has vegetables planted in a by area. The vegetables are surrounded by a border of flowers. By what percent is the area for planting vegetables increased if the border of flowers is removed
68. area

what is the total area of the four walls of a rectangular room 4 meters long by 5.5 meters wide by 3 meters high? is it 4 times 5.5? then times four since there are 4 walls? 88m squared?
69. maths

b. The cross sectional area of a cylindrical pin is 38.1 cm2. The pin has a removed segment. If the height of the segment is 7% of the circumference, find the area of the removed segment.
70. Science

The small piston of a hydraulic lift, has an area of 0.01 m2. If a force of 250 N is applied to the small piston, find the force on the large piston if it has an area of0.05 m2.
71. math

find the shaded area in the circle with a rectangle ( 3 x 4 ft dimension) inside the circle. I don't understand how to figure out the shaded area which is all the space between the circle and the rectangle?
72. physics

A liquid (ρ = 1.65 g/cm^3) flows through two horizontal sections of tubing joined end to end. In the first section the cross-sectional area is 10.0 cm^2, the flow speed is 245 cm/s, and the pressure is 1.20 105 Pa. In the second section the
73. physical

Water flow along horizanta pipe at cross sectional area 48cm which has a constriction at cross sectional area 12cm at one place if the speed at the water at the constriction point is 4m/s calculate the speep at the wide section
74. Math

A rectangular prism has a volume of 960cm. It's width, length, and height are in the ratio 3:5:8. A) Determine the dimensions of the prism B) What is the ratio of the left side to the front to the top of the prism by surface area? C) Calculate the surface
75. Geometry

I need an example of two cereal boxes that have the same volume but different surface area. I need the brand and box sizes. Then I need to pick one of the cereal boxes and redesign it so that it has the same volume but less surface area. Why do you think
76. math

For this assignment, you will be finding the surface area and the volume of three different spherical objects. You will need to find three objects and measure the distance around the center using a ruler or tape measure. Show all work! I am using a lemon
77. Algebra

I have a swimming pool in my backyard and to avoid overcrowding I want to find the maximum area of it so I can figure out how many people I can bring to my pool party that can actually fit in the pool. What is the maximum area of my swimming pool if I have
78. Math

explain three ways to find the area of the rectangle at the right. Use the ways to find the area using 7,3,2,5
79. Math Geometry

the area of a triangle is 1/2 bh find the area of the given triangle: when b=50 inches h= 15 inches
80. Algebra 2

How much larger is the area of the circle enclosed by x^2 + y^2 = 100 than the area of the circle enclosed by x^2 + y^2 = 25?
81. Math

Use a radius of 50 and 3 for pi to estimate the area. Then use a radius of 40 and 3 for pi to estimate the area. Is your answer reasonable? Why?
82. math

a shaded portion of a rectangle is 2/5 of the total area....How much of the total area is not shaded...A.5/2 B.3/5 c.5/3 d.3/10.
83. math

What is the area of a parallelogram where the base= 3x+1 and the height= 9. I know the area is base*height but does that mean you distribute the 9?
84. statistics

when finding the area to the left of the Z score and Z= 1.43 do i subtract the z score from one or is that only when finding the area to the right of Z
85. Math

A square with a side of 4 has an area that is 80% of rectangle WXYZ. What is the area of rectangle WXYZ? 20
86. Math

Find the total surface area of a closed cylinder having a diameter of 1.000 m and 15.000 mm and a length of 12.000 m and 55.000 mm. (Round the answer to 3 decimal places) 1 m = 1000 mm Total surface area= pi*D*h+2*(0.7854*D^2)
87. math

The back of Dante's property is a creek. Dante would like to enclose a rectangular area, using the creek as one side and fencing for the other three sides, to create a pasture. If there is 720 feet of fencing available, what is the maximum possible area of
88. Fluid Mechanics

2. Air enters a converging nozzle at 3.5 m/s at 1.2 kg/m3. The inlet area is 5 cm2. If the outlet area is 1.7 cm2 and velocity of 7.5 m/s, determine the volume flow rate and air density at the nozzle outlet.
89. Algebra

The back of George's property is a creek. George would like to enclose a rectangular area, using the creek as one side and fencing for the other three sides, to create a pasture. If there is 300 feet of fencing available, what is the maximum possible area
90. Math

A rectangular room holds a rectangular carpet in the center of measuring 8m by 16m.. The width form the edge of the carpet to each wall is the same. The area not covered by the carpet is 112m. What is the width of the uncovered area around the carpet?
91. technical design/maps/geography

The scale of a map is 9mm represent 1km on real ground. I found the area of the map and it is 19990mm2. How am I going to use the scale to find the area of the real ground? Thanks a lot!
92. word problem

A farmer decides to enclose a rectangular garden, using the side of a barn as one side of the rectangle. What is the maximum area that the farmer can enclose with 80 feet of fence? What should the dimensions of the garden be to give the area?
93. HCS 320

I am supposed to outline how to integrate communication from a central command area to all areas of the organization. The organization is FEMA. I am completely lost and I just need some help on how to get started. For instance what would be the central

f(x)=2x^3-x^2+1 [1,4]=interval Set up the limit process (once with right endpts, and the other with left entdpts.) to find the area under the curve and above the x-axis on the given interval Should the right and left endpt limit set ups have the same area?
95. math-algebra

How do you solve the following problems: What is the area of a square with the length of a side equaling 3a^5? I got (3a^5)(3a^5)=9a^10 is that correct?? What is the area of the rectangle with the width of 6x^2 and the length of 12x^3? I got 6*5^2=900;
96. Geometry

Andrea has a yard shaped like parallelogram ABCD. The garden area, parallelogram EFGB, has an area of 105 ft. If Andrea wants to sod the rest of her yard, how many square feet of sod should she order? A. 765 ft B. 840 ft C. 945 ft D. 1,515 ft
97. Geography

Select a place in your local geographic area. The place you select should be relatively small in size (e.g., a wetland, an urban park, an agricultural field) and modified from its natural state. 1. How can the area you chose be modified to accommodate the
98. Precalculus

Hey so I need help on a problem from an assignment that my teacher won't help at all. -WRITE IN COMPLETE SENTENCES- "An oil strikes a sand bar that rips a hole in the hull of the ship. Oil begins leaking out of a tanker with spilled oil forming an
99. math plz help

please can someone help me do this problem. atleast help me find an equation to start with thank you. each page in a children's picture book has area 58 squared inches and a left side margin of 1.5 inches and top,bottom and right side margins of 0.5
100. physics

Blood flows in an aorta of radius 4.12mm at 35.0cm/s. Calculate the volume flow rate. Although the cross-sectional area of a capillary is much smaller than that of the aorta, there are many capillaries, so their total cross-sectional area is much larger.