area, perimeter

20,711 results, page 80
  1. math

    The area of the scale model of a playground is 6 square yards. The scale model is enlarged by a scale factor of 3 to create the actual playground. What is the area of the actual playground? 18 square yards 54 square yards 108 square yards 324 square yards
  2. math

    The area of the scale model of a playground is 6 square yards. The scale model is enlarged by a scale factor of 3 to create the actual playground. What is the area of the actual playground? 18 square yards 54 square yards 108 square yards 324 square yards
  3. math

    The area of the scale model of a playground is 6 square yards. The scale model is enlarged by a scale factor of 3 to create the actual playground. What is the area of the actual playground? 18 square yards 54 square yards 108 square yards 324 square yards
  4. Environmental science

    Llyn y Gweision (a Welsh lake) has a surface area of 10 km2. It is fed by two rivers: the Afon Chwefru and the Nant Aeron. The Chwefru(Ich) has a catchment area of 1250 km2. The Aeron(Iae) has a catchment area of 2.400 * 106 ha. The outflow stream, the
  5. MATH/SCIENCE

    Llyn y Gweision (a Welsh lake) has a surface area of 10 km2. It is fed by two rivers: the Afon Chwefru and the Nant Aeron. The Chwefru(Ich) has a catchment area of 1250 km2. The Aeron(Iae) has a catchment area of 2.400 * 106 ha. The outflow stream, the
  6. Algebra

    The length of a rectangular piece of steel in a bridge is 3 meters less then double the width. The perimeter of the piece of steel is 24 meters Find the length and width of the piece of steel. l=3-2w? is part of the formula?
  7. math

    In an 8 inch by 12 inch rectangular photograph, the image of a building is 5 inches high. If the photograph is magnified until its perimeter is 720 inches, what is the height, in inches, of the image of the building in the larger photograph?
  8. Math

    how to explain to my child this math problem : davia draws a shape with 5 sides .Two sides are each 5 inches long . Two other sides are 4 inches long.The perimeter of the shape is 27 inches . What is the length of the fifth side?
  9. Geometry

    A kite has an area of 32. One diagonal is 4 times the other one. The endpoints of one of the diagonals (one of the vertices of the kite) is (3,6). Find other three possibilites for the other three vertices of the kite. Can someone help me with this
  10. Math

    The length of each side of an equilateral triangle is decreased by 5 inches, so the perimeter is now 45 inches. What is the original length of each side of the equilateral triangle?
  11. bnhs

    a regular triangle and a regular hexagon have the same perimeter length.If the length of a side of hexagon is 20cm,how long is each side of the triangle?
  12. Algebra

    If the length of each side of a square is increased by 3 cm, the perimeter of the new square is 40 more than twice the length of each side of the original square. Find the dimensions of the original square.
  13. Algebra

    The length of a rectangular piece of steel in a bridge is 3 meters less than double the width. The perimeter of the piece of steel is 48 meters. Find the length of the steel. Find the width. What steps or formula do I use to solve this problem.
  14. Geometry

    a four sided garden plot has an irregular shape. the second side is 12 feet longer than the first. the third side is 24 feet longer than the second. the fourth side is 36 feet longer than the third. if the perimeter of the plot measures 136 feet, what is
  15. MTH 156

    a function machine accepts inputs as ordered pairs. the components of the ordered pairs are natural number and the first component is the length of a rectangle and the second component is the width. The given machine computes the perimeter (the distance
  16. Geometry

    A farmer is estimating the surface area of his barn to find how much paint he needs to buy. One part of the barn is triangular as shown. The base of the triangle is 22 meters long Both angles on either side connecting the base to each leg is 30 degrees.
  17. 12th grade MATH

    1.)A picture 8 in. by 12 in. is placed in a frame which has a uniform width. if the area of the frame is equal to the area of the picture, find the dimension of the frame (8+2x)(12+2x)-96 = 96 (8+2x)(12+2x)=96+96 96+4x(2)=192 4x(2)=192-96 4x(2)=96
  18. languge arts reading help

    You are driving down a road o the main highway near Deming, New Mexico. Suddenly, in the midst of a mesa of tall yellow grass, you see amazing columns of stones. Some stones are forty feet tall. As you get closer, you see that other stones form arches, and
  19. calc

    1. Let R be the region bounded by the x-axis, the graph of y=sqr(x) , and the line x=4 . a. Find the area of the region R. b. Find the value of h such that the vertical line x = h divides the region R into two regions of equal area. c. Find the volume of
  20. Creating High-Quality Centers

    The reading area needs to be well-stocked with quality books. A well-stocked reading area should contain which of the following? A. Three to four books per child in the classroom B. Ten books per child in the classroom C. Five to eight books per child in
  21. Math

    A city park planner is deciding between two proposals for a new rectangular playground. One is for a playground with an area of 1930 square feet. A) The second proposal is for a playground that is 11.5 meters long and 19.5 meters wide. What is the area of
  22. Math

    A city park planner is deciding between two proposals for a new rectangular playground. One is for a playground with an area of 1930 square feet. A) The second proposal is for a playground that is 11.5 meters long and 19.5 meters wide. What is the area of
  23. Health

    My dog all of a sudden has a small bright red lump on her front left leg. I have no idea what it is, and I'm kind of worried. It might just be a scab or something, but I don't know. Does anyone know what it could be? Thank you for using the Jiskha Homework
  24. math

    The length of a rectangle is 3 cm less than twice its width. If the length is decreased by 2 cm and the width is decreased by 1 cm, the perimeter will be 24 cm. find the dimensions of the original rectangle. Find X, 'find equation, and find answer plz.
  25. History-Read

    I responded back to your last post that you didn't read. We can't use any statistics. I re-wrote what i had but can you please tell me what else I should put or how to make it stronger. Does it sound like I'm pro-war? I'm so confused right now. Thank you.
  26. Math

    I have a question my brother asked me but I need a math expert. You have two interlocking circles and the radius of circle B goes through the center of circle A and of course the radius of circle A goes through the center of circle B. The radius of each
  27. Environmental Science

    Take the greatest care with your significant digits. If you don¡¦t, this question is not ¡§do-able¡¨. Llyn y Gweision (a Welsh lake) has a surface area of 10 km2. It is fed by two rivers: the Afon Chwefru and the Nant Aeron. The Chwefru has a
  28. Geometry

    What is the radius if the area of the circle is: 4x^2(PI) My answer 4x^2(pi)=(pi)(r)(2), 16x(pi)=(pi)(r)(2), 16x/pi=5x. 5(PI) My answer 5(pi)=(pi)(r)(2), sqare root of 5 is 2.23, which rounds to 3, 3(pi)=square root of 9. What is the area of the sector if
  29. Elem. Ed.

    The term "curriculum" can mean an academic area of study or: 1. a federal guideline 2. a holistic subject 3. the total program 4. a separate model Can't "curriculum" mean the total program? Generally, it means an integrated program of study. That can be
  30. Calculus

    Consider a regular tetrahedron whose face is an equilateral triangle of side 7. Find the area of the horizontal cross section A at the level z=3. A= ? Find the volume of the tetrahedron. Consider a regular tetrahedron whose face is an equilateral triangle
  31. Allan Hancock College

    A rectangular lot whose perimeter is 260 ft is fenced along three sides. An expensive fencing along the​ lot's length cost $ 36 per foot. An inexpensive fencing along the two side widths costs only $ 6 per foot. The total cost of the fencing along
  32. calculus

    Consider ∫R∫syDA, where R is the square R=[0,1]x[0,1]. Let us compute some Riemann sums. For any positive integer n we partition R into n^2 little squares Rij each with sides 1/n long. Within each little square we evaluate the integradn at the
  33. calculus

    Consider ∫R∫xydA, where R is the square R=[0,1]x[0,1]. Let us compute some Riemann sums. For any positive integer n we partition R into n^2 little squares Rij each with sides 1/n long. Within each little square we evaluate the integradn at the
  34. Geometry

    A rectangular quilt's length is twice the length of a rectangular picture, and the quilt's width is three times the width of the same picture. The area of the picture is 2 square feet. What is the area of the quilt, in square feet?
  35. science

    Why are some things"in" and some things"out" Think about a certain force. IN:paper clip, nail, thumb tacks Out: paper cup, shoe, carpet Interesting. I never really thought about it. Nails and thumb tacks have a force holding things together. Same for a
  36. Algebra

    Bambi is restoring a clock with a broken gear. A fragment of the small gear has 5 teeth . a larger unbroken gear has 18 teeth and is 2cm in dia.She knows that for every 2 times the large gear turns the smaller gear turns 3 times. How much cm of the
  37. MATH QUIZ PLS HELP!!!

    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 ©£ and round to the nearest tenth. 439.6 ft^2 324.5 ft^2 571.5 ft^2 285.7 ft^2*** 2.Find the surface area of a square pyramid with a base length of 24 cm
  38. algebra

    This isosceles triangle has two sides of equal length, a, that are longer than the length of the base, b. The perimeter of the triangle is 15.7 centimeters. The equation 2a + b = 15.7 can be used to find the side lengths. If one of the longer sides is 6.3
  39. algebra,

    This isosceles triangle has two sides of equal length, a, that are longer than the length of the base, b. The perimeter of the triangle is 15.7 centimeters. The equation 2a + b = 15.7 can be used to find the side lengths. If one of the longer sides is 6.3
  40. math 1

    This isosceles triangle has two sides of equal length, a, that are longer than the length of the base, b. The perimeter of the triangle is 15.7 centimeters. The equation 2a + b = 15.7 can be used to find the side lengths. If one of the longer sides is 6.3
  41. math

    The length of a rectangle is 10 feet more than twice its width. The perimeter of the rectangle is 170 feet. Find the dimensions of the rectangle. ANS: Length= 60 feet, Width= 25 feet I already know the answer, its in my review sheet. If someone can explain
  42. Geometry 10th grade

    Find the perimeter or given triangle. KLM if JHG~KLM, KM=6, HJ=3, JG= 4, and GH=6. The biggest triangle is FHL. KLM is part of right corner of the big triangle and JHG is the left corner of the big triangle.
  43. Calculus Help Please!!!

    Ornithologists have determined that some species of birds tend to avoid flights over large bodies of water during daylight hours. It is believed that more energy is required to fly over water than land because air generally rises over land and falls over
  44. Math

    1. Jenny is building a rectangular garden around a tree in her yard. The southwest corner of the garden will be 2 feet south and 3 feet west of the tree. The northeast corner of the garden is 1 foot north and 4 feet east of the tree. What will be the
  45. Algebra Word Problem Help

    A gardener has 40 feet of fencing with which to enclose a garden adjacent to a long existing wall. The gardener will use the wall for one side and the available fencing for the remaining three sides. If the sides perpendicular to the wall have length x
  46. Math

    A 12 cm by 12 cm ice cube tray is in the shape of a cuboid with twelve hemispheres inset. The depth of each hemispheres is 1 cm. a) If all the hemispheres were filled with water, calculate the total volume of water that the ice cube tray could hold. It is
  47. maths

    Choose the 2 true statements? A) using Naismith's rule to plan a walk would give different times to walk up a hill as down it, on the same path. B) On a map with a scale of 1:200 000, 5cm on the map will represent 1km on the ground C) On a map with a scale
  48. math,correction,plz

    can someone correct these for me plz. Simplify by combining like terms. Problem#32 radical(63) minus 2radical(28) plus 5radical(7) My answer: 4radical(7) Find the perimeter of the triangle shown in the figure. leg...1 = radical (5) + radical (3)
  49. Math

    Find the area of a square picture who's length is 4 inches
  50. calculus

    if the area of a triangle with base 2F and height F-2 is equal to F, compute F. 
  51. calculus

    if the area of a triangle with base 2F and height F-2 is equal to F, compute F. 
  52. Geometry

    find the area of a regular pentagon with radius 5in
  53. Uiiecest bama

    A parallelogram has a base 6.5 cm and height 2.75 cm culculate its area
  54. 7th grade algebra

    Find the area of the circle with the given circumference C Use 3.14 for pi C=37.68
  55. Geometry

    how do you find the area of the lateral face of a regular pyrimid?
  56. Math

    Need to build a rectangular garden on an area of 8,000 sf. What are the dimensions?
  57. Math

    A triangle has base 15 feet (ft) and an altitude of 4 ft. Find its area
  58. science

    Find the area of triangle whose vertices are A(2,0)B(4,5)C(6,3)in vector method
  59. Math

    Fiind the area bounded by the parabola y^2 = 8x, the x axis and the line x=2
  60. calculus

    Find the area of the region under the graph of the function f on the interval [-1, 2]. f(x) = 6x + 1
  61. math

    find the area of the triangle with the given sides B= 70 degrees 30' ; a=105 ; c=64
  62. geometry

    the area of a parallelogram is 36 in squared and its height is 3 in . How long is the corresponding base?
  63. math

    Area of a rectangle = 221 m2; width = length = ? Should the answer be 13 or or 26
  64. Geometry

    What is the area of a regular hexagon with a side length of 14ft?
  65. Geometry

    A circle has a radius of 6 in. The inscribed equilateral triangle will have an area of: ?
  66. Math

    How to draw tow different parallelograms that each have an area of 4 square inches
  67. Calculus

    Find the area in the second quadrant bounded by the x-axis and f(x)=sqrt((x^3/8)+1)
  68. maths

    How many Sq metres is there in a area of 200cm x195cm x10cm deep?
  69. social studies

    aword that describe an area that has one or feaures in common
  70. Calculus

    Use the cross product to find the area of the triangle with vertices: P=(1,1,5) Q=(3,4,3) R=(1,5,7)
  71. calculus

    if the area of a triangle with the base 2F and height F-2 is equal to F, compute F.
  72. Geometry

    If the surface area of a sphere decreases, will the value of the volume remain the same?
  73. Calculus

    Find the area of the region enclosed between y = 2sin (x) and y = 2cos (x) from x = 0 to x = pi/4. Thanks for your help :)
  74. Statistics

    If I don't know the mean and the standard deviation how can I find the area of z-score -0.75
  75. Statistics

    If I don't know the mean and the standard deviation how can I find the area of z-score -0.75
  76. Stats.

    Find the standard normal area for each of the following, showing your reasoning clearly. a. P(1.22<z<2.15) b. P(2.00<z<3.00) c. P(-2.00<z<2.00) d. p(z=0.50)
  77. Calc 2

    Find the area of the surface generated when y=4x and x=1 is revolved about the y-axis.
  78. geometry

    Total area of quadrilateral ABCD is 20 cm 2 and offsets on BD are 2 cm and 3 cm. The length of BD is
  79. 6th grade

    What is the surface area of a rectangular prism with the numbers 15 26 9 12?
  80. Geometry

    Find the area of a regular pentagon with radius 5in.
  81. Biology (or math)

    What is the surface area to volume ratio of a cube with a with of 4 cm. I think its 1.5:1
  82. Math

    If the length of a rectangle is x - 5 and the area is 4x(exponent2) - 12x +9, what is the width?
  83. maths

    calculate the surface area of a sphere of which the volume is 9000mm^3
  84. Calculus

    Find the area of the region bound by f(y) = 9y - y^2 and the y-axis over the interval 3 <= y <= 6.
  85. Calculus

    Find the area of the unbounded shaded region. Y= 7/ SQRT 7-X
  86. Easy Math

    If a basketball has a circumference of C = 2.98 ft, what is its surface area and its volume?
  87. Calculus

    Find the area of the unbounded shaded region. Y= 7/ SQRT (7-X)
  88. geography

    Sphere of an organization that renders a service in our area e.g.clinic
  89. Adv. Math

    Find the area between each curve and the x-axis for the given interval. 1)y = x^4 + 5 from x = 0 and x = 5 2)y = 3x^2 + 5x - 1 from x = 1 to x = 4 3)y = 4x - x^3 from x = 0 to x = 2
  90. Pre-Algebra

    How do you find the surface area of cones and cylinders?
  91. algebra

    the area of a triangle is 40cm2. the height of it is h cm. what is the lenght of its base?
  92. maths --plse help me..

    can we prove the formula to find the area of an octagon
  93. Math

    Find the area of a figure with the dimensions being 7 1/2 ft x 3 1/4. Please answer and explain.
  94. Math

    If the diameter of a circular pond is 50 m and the width is 2 m then what is the area of the pathway
  95. math

    Find the rectangle with the maximum area inside the ellipse x^2/16 + y^2/4=1. Thanks.
  96. Calc

    If, for all real number x, f(x) = g(x) + 5, then on any interval [a, b], what is the area of the region between the graphs of f and g?
  97. Calc 2

    Find the area of the region inside r=19sin(theta) but outside r=3
  98. math

    the hypotenuse of a right triangle is 12 cm. find one the legs if the area is maximum?
  99. Math

    How to do the formula for solving the area of a circle with a radius of 88.37733888387438
  100. Math

    If the length and width of a triangle are tripled, what is the effect on the area?