area, perimeter

20,801 results, page 36
  1. math

    A tangram is a geometric puzzle made from seven pieces that form a square. Trace the pieces, cut them out, and answer the following questions. The puzzle can also be seen on wikipedia web site. a. If the area of the entire square equals 1 unit, label each
  2. PHYSICS

    A coil with an area of 0.10 m2 is in a magnetic field of 0.20 T perpendicular to its area. It is flipped through 180° so that the part that was up is down. The flip takes 1.0 s. Estimate the average induced emf between the ends of the coil while it is
  3. mathematics-need help urgently please

    A tank with a square base of side x has a capacity of 1000m^3. If the total area is pm^3, show that p=2x^2+4000/x. Hence find the least area of the flat sheet that may be used to build the tank. Please show workings #thanks
  4. Maths

    Hi im doing measurement at skool at the moment and i cant quite ork out some questions. Can someone please help!! A circular portrait photograph has a diameter 18cm and is to be placed in a 20cm square frame. Determine the ratio of the area of the
  5. Precalculus

    A farmer has 1000 feet of fencing materials available to fence a rectangular pasture next to a river. If the side along the river does not need to be fenced, what dimensions maximize the enclosed area? What is the maximum enclosed area?
  6. ?Cal/Trig??

    Suppose the circumference of a circle is increasing at a rate of 3 cm/s. Find the rate at which the area of the circle is changing when the area is 64pi square centimeters. nEEd ALot of HELP on this one. !! PLZ. Jayden--CUHS
  7. Maths

    Hi im doing measurement at skool at the moment and i cant quite ork out some questions. Can someone please help!!!! A circular portrait photograph has a diameter 18cm and is to be placed in a 20cm square frame. Determine the ratio of the area of the
  8. math

    Solve this problem plz... A rectangle has an area of 288 cm square.if the width is decreased by 1cm and length is increased by 1 cm the area would decreasedby 3 cm square.fin the original dimension of the rectangle.
  9. math

    twelve cans, each 6.6 cm in diameter are packed into a carton. what is the efficiency of this package; that is, what percent of the total base area of the carton is covered by the cans? (use the formula A = πr^2 to calculate the area of a circle)
  10. Precalculus

    1. permutation or combination: how many schedules are possible if you need to choose 5 events out of 20 for a vacation? Is it permutation?? Answer is 1860480? 2. a. How many area codes are possible ( the 3 digit number can't start with a 0)? 504? b. How
  11. Ratios of Similar Figures

    1. Write the following ratio in simplest form: 32 min : 36 min a. 8 : 9 b. 8 : 36 c. 32 :9 d. 128 : 144 2. In a sports equipment locker, there are 81 balls and 45 baseball mitts. Write the ratio of balls to baseball mitts in simplest form. a. 9 : 5 b. 10 :
  12. Math

    Are these correct: 1a) Find the lateral surface area in square inches of the cone with the following dimensions: h= 24 in, radius = 10 in, slant height = 26 in. (Use Pi= 3.14) I didn't know how to do: Lateral Surface Area = ______ square inches (exact
  13. Physics

    What is the coeffecient of drag for the shape that has diameter 7.32[cm]? . Use three sig. figs. or N/A if there is not enough information. 2. You have a large wind tunnel of cross-sectional area 0.95[m2]. You have a set of shapes that are all the same
  14. physics

    Grains of fine California beach sand are approximately spheres with an average radius of 50 and are made of silicon dioxide. A solid cube of silicon dioxide with a volume of 1.00 m has a mass of 2600 kg. What mass of sand grains would have a total surface
  15. Math

    A triangular garden plot has one 16 foot side. The height perpindicular to that side is 12 feet 6 inches. If each plant requires 36 sq. in. of space, how many plants can be placed in the plot? Divide the area of the triangle by the area required per plant.
  16. math

    a rectangular pen with partitions is to be built from 800 feet of fencing. Express the area as a function of x alone. graph over a reasonable domain and find the dimensions of the pen of the maximum area that an be built under these conditions
  17. Algebra

    You have 600 feet of fencing to enclose a rectangular plot that borders on a river. If you do not fence the side along the river, find the length and width of the plot that will maximize the area. What is the largest area that can be enclosed?
  18. biology

    Need help with FOV area (mm2) totally confused? im confused i have the FOV diameter they are: 4x = 5 10x = 2 40x = 0.5 a classmate told me she thinks the area for 40 x is: pi(5/2)^2 = 19.6 not sure if that's true or how to do it for the low and medium,
  19. calculus

    The area enclosed between the x-axis, the curve y=x(2-x) and the ordinates x=1 and x=2 is rotated through 2π radians about x-axis. (a)Calculate the volume of the solid revolution formed. (b)Calculate the rotating area. from this question what about he
  20. geometry

    The volume of two similar solids is 1331 m3 and 729 m3. The surface area of the larger solid is 605 m2. What is the surface area, in square meters, of the smaller solid? Answer A. 81 B. 121 C. 305 D. 405
  21. math

    Water is falling on a surface, wetting a circular area that is expanding at a rate of 9 mm2 /s. How fast is the radius of the wetted area expanding when the radius is 120 mm? (Round your answer to two decimal places.)
  22. Algebra

    A gardener is putting a wire fence along the edge of his garden to keep animals from eating his plants. -If he has 20 meters of fence, what is the largest rectangular area he can enclose? -What quadratic function represents the area of the garden? Thanks
  23. science

    if a dentist chair weighs 1600N and is raised by a large piston with a cross sectional area 75.0cm2, what force must be exerted on a small piston of crosssectional area 3.75cm2 to lift the chair
  24. Math-Help

    I posted this the other day but no one responeded. Yes, I am looking for the steps and a answer because I can not get it. Question: Area of Painting: A rectangular painting with a width of x centimeters has an area X^2 +50x square centimeters. Find a
  25. math

    An ostrich farmer wants to enclose a rectangular area and then divide it into 4 pens with fencing parallel to one side of the rectangle. There are 720 feet of fencing available to complete the job. What is the largest possible total area of the 4 pens?
  26. math

    i'm supposed to find an area of a figure but i'm not sure what it is so therefore i don't know the formula. basically, it kind of looks like a capsule but more roundish like an oval. there's two lines down the middle that both measure at 18 ft. the bottom
  27. Maths

    A rancher wants to enclose a rectangular area and then divide it into four pens with fencing parallel to one side of the rectangle (see the figure below). He has 1440 feet of fencing available to complete the job. What is the largest possible total area of
  28. Calculas

    A book designer decided that the pages of a book should have 1-in. margins at the top and bottom and  1 2  in. margins on the sides. She further stipulated that each page should have an area of 52 in.2. Find a function in the variable x, giving the
  29. Geometry

    Find the area of a regular pentagon with radius 3cm. Round to the nearest tenth. No picture is given, but I believe a circle can surround the figure. I'm not really sure how to find the area of the figure when the side length isn't given. Can you guys help
  30. Calculas

    A book designer decided that the pages of a book should have 1-in. margins at the top and bottom and  1 2  in. margins on the sides. She further stipulated that each page should have an area of 52 in.2. Find a function in the variable x, giving the
  31. Urgent help here! Math

    Solve for the area when a rectangle of length 4cm and width 3cm has one vertex at the origin of a system of axes and another vertex on a quarter of a circle whose center is also at the origin. Find the shaded area?
  32. Geometry

    The lateral area of a cylinder is 28 pi in^2. All of the dimensions are changed by the same factor and the new lateral area is 448 pi in^2. What was the dimensional factor change
  33. Math

    An equilateral triangle and a regular hexagon have equal perimeters. What is the area of the triangle, if the area of the hexagon is 120? I don't get it
  34. Geometry

    In the surface area formula for cylinders, which expression represents the lateral area? πrh 2πrh <~my chocie πr*2 2πr*2
  35. Financial

    Suppose the population of Area Y is relatively young and the population of area O is relatively old but verything else about the two areas is the same. Would interest rates likely be the same or different in the two areas. Explain
  36. Calculus Area between curves

    Sketch the region enclosed by the given curves. Decide whether to integrate with respect to x or y. Then find the area of the region. 3y+x=3 , y^2-x=1
  37. Algebra

    The surface area of a cylinder is approximately? a-- 151 m sq b-- 273 m sq c-- 179 m sq d-- 302 m sq my answer is Surface Area of a Cylinder = 2 pi r 2 + 2 pi r h c
  38. Calc

    Find the area of the region bounded by the curves y2 = x, y – 4 = x, y = –2, and y = 1. So far I have found that the area of the trapezoid which is 13.5. But for the other two areas I cannot find them. They could be: 27/2 22/3 33/2 34/3 14 I believe
  39. math

    Find the area of the following plane figure. Find the altitude of a triangle whose area is 100 cm2 and whose base is 20 cm. Altitude =
  40. Geometry

    Rectangle ABCD has diagonals AC and BD. E is the point of intersection of the two diagonals. If the area of triangle AEB is 8, what is the area of triangle ACD?
  41. calculus

    Find the surface area of the solid generated by rotating the area between the y-axis, (x^2/y) + y = 1, and -1≤y≤0 is rotated around the y-axis.
  42. math

    make triangles and find the area of those triangles and then add em together. I need to find the area of a polygon,breaking into simpler parts. how do you do it?
  43. Math

    A triangle and trapezoid share a 15 inch base and a height of 10 inches. For what values of b is the area of the trapezoid less than twice the area of the triangle?
  44. programming

    Write a program that asks for the length and width of two rectangles. The program should tell the user which rectangles has the greater area, or if the area are the same.
  45. math

    The surface area of spherical ball of radius r is given by the formula S=4(22/7)r2. Find surface area of ball of diameter 12cm.
  46. math

    A picture 16" x 24" has a frame 1" wide.Approximately how many times greater than the area of the frame is the area of the picture? a. 5 b. 45 c. 48 d. 80 e. 84 please answer and explain
  47. Vectors/Calculus

    The question asks me to find the area of the triangle with the given vertices. (The area A of the triangle having u and v as adjacent sides is given by A=1/2 ||u x v||.) the vertices are: (0,0,0) (1,2,3) (-3,0,0)
  48. Math

    The surface area of a prism is 54 square inches. What is the surface area of a similar prism that is smaller by a scale of 1/3? My answer- 6
  49. Calculus

    A window is designed to be the area between a parabolic section and a straight base. The height is 0.640 m and the base is 1.60 m. What is the area of the window?
  50. geometry

    rectangle a is similar to smaller rectangle b. the scale factor is 5/3. if the area of rectangle a is 150 square inches, what is the area of rectangle b?
  51. Math

    The following regular hexagon A ____________B / \ / \ / \ F\ /C \ / E\____________/D has two diagonals going through it, FD and CE. These two lines form 3 triangles. We know that the area of the hexagon is 1. What is the area of those 3 triangles?
  52. Geometry

    I have a pizza. The radius is 10 inches long. The pizza was cut into 16 equal slices. When 1 slice was left, my sister and I both wanted it, so we agreed to cut it in half, but I like the crust more than she does, so we decided to cut it the "other way."
  53. Geometry

    I have a pizza. The radius is 10 inches long. The pizza was cut into 16 equal slices. When 1 slice was left, my sister and I both wanted it, so we agreed to cut it in half, but I like the crust more than she does, so we decided to cut it the "other way."
  54. Geometry

    I have a pizza. The radius is 10 inches long. The pizza was cut into 16 equal slices. When 1 slice was left, my sister and I both wanted it, so we agreed to cut it in half, but I like the crust more than she does, so we decided to cut it the "other way."
  55. physics

    a homeowner wishes to drain her swimming pool by siphoning the water, whose depth is h, into a nearby gully a distance H below it,where H is much larger than h.she uses pipe of cross-sectional area a, and the pool has surface area A.how long does it take
  56. calc check

    <<y=(1/A)*integral from a to b of: (1/2)[f(x)]^2 dx >> If that is the y value of the center of mass, I don't know why the factor (1/2) is there I also don't agree with your calculation of the x value, which should be 1/(ln 2). I agree with you
  57. Math!Please Help.!

    Hi.-It's Margie and I have a Math Lab to do but I don't get this.If you can, please help.: Use the Pythagorean Theorem to find the diagonal of the new room. length=22 width=25 area=350 Is the area supposed to be 550 instead of 350? Area of a rectangle is
  58. Geometry

    Imagine that all the people on Earth could stand side by side together. How much area would be needed? Would all the people on earth fit in Rhode Island? Explain your reasoning. Rhode Island, the smallest state in terms of area, has a land area of 1000
  59. Calc AB

    What is the area of the region in the first quadrant enclosed by the graph of y=e^(x^2/4) and the line y=0.5? When I graphed the two functions they don't even connect so the answer would be infinity. What am I doing wrong> Integrate y=e^(x^2/4) from x=0
  60. Optimization Calculus

    A three sided fence is to be built next to a straight section of river, which forms the fourth side of a rectangular region. There is 96 ft of fencing available. Find the maximum enclosed area and the dimensions of the corresponding enclosure. I drew a
  61. math

    Gabriel walked 100m around the perimeter playground.How long and how wide could the play ground be? give three different answers.
  62. Geometry

    Isosceles triangle base is 7 more than one-half times the legs. Perimeter is 22 centimeter Find length of each leg b
  63. math

    Draw a quadrangle below.Measure the sides to the nearest 1/2 inch.Write the length next to each side.Find the perimeter.
  64. Maths

    Arrange 9 square tiles having side of length 2 cm in 3 different ways . Find the perimeter of the resulting figure in each case
  65. math

    What is the perimeter of a rectangle if each side is a whole number of meters,and what are the possible dimensions for the length and width. List them and explain your answer.
  66. calculus

    Find the point P in the first quadrant on the curve y=x^-2 such that a rectangle with sides on the coordinate axes and a vertex at P has the smallest possible perimeter.
  67. math -word problem

    The width of a recangle is fixed at 13cm. What Length will make the perimeter greater than 78cm?
  68. Geometry

    the perimeter of an equilateral triangle is 32 centimeters. find the length of an altitude of the triangleto the nearest tenth of a centimeter.
  69. mathematics

    1. you toss three coins. what is the probability P that all are heads? 2. write and simplify an expression for the perimeter of a triangle with these lengths: 1/2x, x, 5/4x for number one, i think it might be 1/8 i'm not sure.. please help!!
  70. Math

    If I have a triangle and they are asking me to find the perimeter of DEF when EF is 16cm and DE is 12cm would I add those two numbers then subtract 180 from that answer?
  71. Geometry

    Can you help me.the lengths of the sides of a triangle are in the extended ratio 3:10:12. The perimeter is 400cm. What is the length of the longest side in centimeters.
  72. algebra

    Arrange 9 square tiles having side of lengths2cm in different ways. Find the perimeter of The resulting figure in each case.
  73. algebra

    find the lenngth of each side of the rectangle so that it has the given perimeter. p= 50 in length is 2L-5 width is L is my formaula i am needing to do this 50=2L-5+2*L i am looking at the formula of P=2L+2W do i have this written right should have been 50
  74. algebra

    The perimeter of a tennis court is 228 ft. The length is 42 ft longer than the width. Write a set of linear equations.
  75. math

    Whats all the possible whole-number pairs of length and width for a rectangle with a perimeter of 18 meters? and how do i put it in a table/chart
  76. Albegra word problem

    PLEASE HELP!!!!! The length of a rectangle is fixed at 19cm what widths will make the perimeter greater than 70cm
  77. algebra

    The perimeter of a picture frame has to be between 36cm and 48cm. If the length is four cm longer than the widyh, find a range for the width
  78. algebra

    Suppose the lengths of the four side of a quadrilateral are represented by the expressions 3a, a+2, 2a-1, and 3a+6. write the sum of the lenghts (the perimeter), and then simplify.
  79. HELP WITH ALGEBRA!!!!!!!

    Suppose the lengths of the four side of a quadrilateral are represented by the expressions 3a, a+2, 2a-1, and 3a+6. write the sum of the lenghts (the perimeter), and then simplify.
  80. math please help

    The perimeter of a rectangular field is 380 yd. The length is 10 yd longer than the width. Find the dimensions. Please help and show work thank you
  81. Intermediate algebra, concepts and graphs

    A rectangle is 7 times as long as it is wide. The perimeter is 80 feet. find the dimensions.
  82. Geometry

    One leg of a right triangle has a length of 15 m. The other sides have lengths that are consecutive integers. Find the number of meters in the perimeter.
  83. math

    The perimeter of the polygon below is 9x-1. Find the expression for the missing side length. There are 5 expressions: 3x-4, x-5, x+1, 2x+3, and ?. I got ?=2x-6. I added all the equation and minus it from 9x-1.
  84. Geometry

    Isosceles triangle base is 7 more than one-half times the legs. Perimeter is 22 centimeter Find length of each leg
  85. Math

    The size to which a pumpkin grows while on the vine is probably problematic, as our current visiting POLY pumpkins demonstrate. What if we were watching a pumpkin on the vine grow over time and that its shape was totally spherical. Now for your five (5)
  86. Physics (Liquids)

    I have a question about fluids ok... I've been told that Pressure = (density of fluid) (gravity) (height) ok that's great in all but I don't see how it works... Pressure = (Force perinduclar to area force is acting on)/(Area force is acting on) ok this
  87. Chemistry

    Please help! A drop of oil (volume 0.05 cm3) is released from a medicine dropper on to the calm surface of a pond where it spreads out to cover an area of 40 cm2. Assume that the oil film has a uniform thickness equal to the diameter of an oil molecule.
  88. Math

    The formula for area of a rectangle is Lw.L=4 And W =6.find area of the rectangle
  89. Math Circumference to Area???

    Help! It say that the circumference is equal to π over 2 and i have to find the area HOW DO YOU DO THAT???? C=π/2
  90. area of triangle

    the base of a triangle is 9 cm the area is 18 cm squared what is the height?
  91. Math

    A square of area 2 is inscribed in a circle. What is the area of the circle?
  92. Algebra

    The formula for area of a rectangle is Lw.L=4 and W=4 and w =6.find area of the rectangle
  93. Area of a circle

    Whats the formula to find the area of a circle?
  94. MATH

    Find the surface area of the 4 x 4 x 4 cm Prism shown. You may want to draw a net to help you. Remember to answer in the correct units of measure for area. (10 points) (Points :10) 96cm 48cm2 96cm2 3 2. [8.08] Find the surface area of the cylinder with
  95. Calculus

    A poster is to have an area of 170 in2 with 2 inch margins at the bottom and sides and a 3 inch margin at the top. What dimensions will give the largest printed area? (Give your answers correct to one decimal place.)
  96. math

    A school has purchased a large field that has a square area of 19,500 ft2. What is the approximate length of each side of the square area? Round your answer to the nearest foot. a. 140 ft c. 142 ft b. 139.64 ft d. 139 ft
  97. Calculus

    A pig farmer wants to enclose a rectangular area and then divide it into six pens with fencing parallel to one side of the rectangle (see the figure below). There are 610 feet of fencing available to complete the job. What is the largest possible total
  98. Applied Calculus......

    A book designer decided that the pages of a book should have 1-in. margins at the top and bottom and 1/2 in. margins on the sides. She further stipulated that each page should have an area of 60 in.2. Find a function in the variable x, giving the area of
  99. calculus

    A book designer decided that the pages of a book should have 1-in. margins at the top and bottom and 1 2 in. margins on the sides. She further stipulated that each page should have an area of 50 in.2. Find a function in the variable x, giving the area of
  100. College Algebra

    You have 800 feet of fencing to enclose a rectangular plot that borders on a river. If you do not fence the side along the river,find the length and width of the plot that will maximize the area. What is the largest area that can be enclosed?