area, perimeter

20,606 results, page 38

  1. math, calculus

    1. Consider the region bounded by the curves y=|x^2+x-12|, x=-5, and x=5 and the x-axis. A. Set up a sum of integrals, not containing an absolute value symbol, that can be used to find the area of this region. B. Find the area of the region by using your answer from part A. ...
  2. math

    A rectangular dog pen that has the greatest possible area within a budget of 50$.A pen needs at least one gate for a dog. Fencing is $1.00 per foot, fence posts are $2.00 each and gates (3 feet wide) are $5.00 each. what is the area of a pen? pls help me !!!
  3. Solid Mensuration

    one diagonal of a cyclic quadrilateral coincides with a diameter of a circle whose area is 36pi cm^2. If the other diagonal which measures 8cm meets the first diagonal at right angles, find the area of quadrilateral. Show your solutions
  4. Solid Mensuration

    one diagonal of a cyclic quadrilateral coincides with a diameter of a circle whose area is 36pi cm^2. If the other diagonal which measures 8cm meets the first diagonal at right angles, find the area of quadrilateral. Show your solutions
  5. mathematics

    the area of a rectangle is 175 and the length is 1 and a half times bigger than the width. find the width L x W = Area L = 1.5W 1.5W x W = 175 or 1.5W^2 = 175 W^2 = =116.666 making W = 10.80... and L = 16.20... 10.80... x 16.20... = 175
  6. 8th grade math

    The radius of circle M is 3 times the radius of circle P. If the area of circle P is abotu 27 sq. cm. the area of circle M is about what? (Use 3 as pie) i don't get it. is the scale ratio 3:1?
  7. math - see if correct

    If the area is x^2+5x+6m^2 and we know the area is a square which is base times height, we can factor the equation so that it comes out to (x+3)(x+2)since the height is x+3 then we know the base is x+2. (is this correct)
  8. math

    the area of a regulation tennis court is 2808 square feet use a coversion factor to find the area of a tennis court in square yards
  9. math

    my math homework tells me to find the area of a circle using it's circumference. the circumference given was 6π yd. (6 pi yard). can someone explain to me how to find the area?
  10. Calculus

    Please help? Let F(a) be the area between the x-axis and the graph of y=x^2cos(x/4) between x=0 and x=a, for a>0 (consider the area to be negative if the graph lies below the axis). Find the formula for F(a).
  11. Calculus

    Please help? Let F(a) be the area between the x-axis and the graph of y=x^2cos(x/4) between x=0 and x=a, for a>0 (consider the area to be negative if the graph lies below the axis). Find the formula for F(a).
  12. Math

    Triangle A has an area of 19,00cm squared and similar triangle B has an area of 118.75cm squared. Determine what scale factor makes triangle B an enlargement of triangle A
  13. 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. 360 in^2 180 in^2 22.5 in^2 3.6 in^2
  14. Maths

    Brendan has a rectangular paved area in his backyard. If the length and breadth were increased by the same percentage and the area increases by 21%, what is the percentage increase of the length and breadth?
  15. math

    if A (2, -1) and B (4,7) are endpoints of a diameter of a circle, what is the area of the circle? a)16pi b) 17pi c) 18pi d)144pi e)1156pi Plot the two points and join 'em with a line. Now plot another point C (4, -1). And then simply run a line from B down to the new point and...
  16. Calculus

    Consider the area between the graphs x+1y=12 and x+8=y2 . This area can be computed in two different ways using integrals First of all it can be computed as a sum of two integrals Interval a to b f(x)= i put 12-x but it's wrong Interval c to b f(x)= i put (x-8)^(1/2) but it's ...
  17. 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 piece with its ...
  18. Algebra

    Ok, so then does this look correct? -Find the area of a triangle in which the base measures 8.5 centimeters and the height measures 3 centimeters less than the base.- My answer: Area= 23.375cm squared (if you would like, I could show my work) Thank you so much!
  19. science/math

    I have to make this density graph on a standard sheet of graph paper of this area outside. Each side of the area is a meter (in real life). What would be an good scale to use for my graph on graph paper?
  20. pre-calculus

    suppose a triangle has two sides of lengths a and b. if the angle between these sides varies, what is the maximum possible area that the triangle can attain? what can you say about the minimum possible area? could you explain by detail
  21. math word problem

    A rectangle garden is 30 ft by 40 ft. Part of the garden is removed in order to install a walkway of uniform width around it. The area of the new garden is one-half the area of the old garden. How wide is the walkway?
  22. physics

    a wire whose cross-sectional area is 4mm^2 is stretched by 0.1 mm by a certain load.if a similar wire double the area of cross-section is under the same load,then then elongation would be ans: 1)0.05mm
  23. math

    Joannies garden is in the shape of a square and has an area of 100 sq ft. Zacharys garden is rectangular. Its length is 3 times as long as Joannies garden but only half as wide. Zachary garden has an area of ______ sq.ft I didn't have and answer?
  24. Math

    A farmer is fencing a rectangular area for his farm using the straight portion of a river as one side of the rectangle. If the farmer has 2400 ft of fence, find the dimension of the rectangle that gives the maximum area for the farm
  25. math

    A model of a rectangular patio at a landscaping business will be enlarged by a scale factor of 2 when it is installed in a customer’s back yard. The area of the new enlarged patio will be 160 square feet. What is the area of the landscaper’s model?
  26. math

    Paving cost is $10.30 per square yard. find the total cost of paving the shaded area in figure 27-21. Round the answers to nearest ten dollars. 170'-0" Radius 92'0 256'-0" is the shaded area
  27. Social studies

    What is a reason few people have settled in the interior of Australia. No mineral wealth in in the interior of Australia.(MY ANSWER) Land is too expensive. The area is too dangerous. The area has little water n arable land.
  28. math

    1.) Calculate the area of a circle with radius 8.5 inches. . 2.) Calculate the area of a circle with the diameter 15 feet. . 3.) Calculate the area of a circle with radius 9 feet
  29. 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 to the point where e...
  30. 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 to empty the pool if h...
  31. 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? 69.08 square feet What is the lateral surface area ? 828.96 square inches How do i find: If a quart of paint covers 100 square feet, how many quarts of paint ...
  32. Geometry / Trig

    What is the area of a regular hexagon with a distance from its center to a vertex of 1 cm? (Hint: A regular hexagon can be divided into six equilateral triangles.) hex The area of the regular hexagon is _____ ?
  33. Referents

    Give referents for the following: 1cm square = area of fingernail 1 inch square = ? could it be an area of a dice 1 metre square = ? could it be a picture frame? I don't know what referents to use for those two.
  34. Math

    Lucia is hoping that Angela will buy her a geometrically interesting piece of land on which he will build a mansion. Lucia has said that she will only buy the land if it costs less than $4.00 per square foot. The plot shown below is listed for $453,175. Is Angela going to be ...
  35. Algebra

    How do I solve this? The perimeter of a rectangular writing pad is 28 inches. The length is 1 inch less than twice the width. Find the width. Show all work! Translate your English into Math <The length is 1 inch less than twice the width> or L = 2W - 1 <Perimeter is ...
  36. Math

    The side of a square flower bed is 1 m and 80 cm long. It is enlarged by digging a strip 20 cm wide all around it. find the area of the flower bed and also the increase in area of the flower bed answer me.
  37. As Physics

    Please help and do it step by step all parts of questions and use: T = time(s) I=current (amps) Q=net charge on object (Coulombs) N=no electrons (and write if added or removed from object and how) E=elementary charge Calculate the number of free electrons per metre length of ...
  38. Pre-Algebra

    A movie projector is 6 ft away from the screen showing a rectangular picture that is 3 ft wide and 2 ft high. A. Suppose the projector is moved to 12 ft from the screen. What size will the picture be (width, height, and area)? I figured 6 wide, 4 high, 24 area. Is this correct...
  39. Pre-Calculus

    The surface ares S (in square meters) of a hot air ballon is given by s(r)=4 pi r^2 where r is radius of balloon (in meters). If the radius r is increasing with time (in seconds) according to the formula r(t) = 2/3t^3, t is greater than or equal to 0, find the surface area S ...
  40. Cross-Sectional Area

    The cross-sectional area of a beam cut from a log with radius 1 foot is given by the function A(x) = 4x(sqrt{1 - x^2}), where x represents the length of half the base of the beam. Determine the cross-sectional area of the beam if the length of half the base of the beam is 1/3 ...
  41. calculus

    Let A be the area if the region in the first quadrant under the graph of y = cos(x) and above the line y = k for 0 < k < 1. a. Determine A in terms of k. b. Determine the value of A when k = 1/2 c. If the line y = k is moving upward at a rate of 1/pi units per minute, at...
  42. math (calculus)

    you have 704m of fencing to enclose 3 adjacent plots(not the same size) you must use calculus to fine the dimensions for which the total area is as large as possible. Find the largest possible total area.
  43. Algbera

    Afarmer decides to enclose a rectangular garden, using the side of a barn as one side of the rectangle. Wht is the maximum area that the farmer can enclose with 100 ft of fence? What should the dimensions of the garden be to give this area.
  44. Calc

    A stone dropped into a still pond sends out a circular ripple whose radius increases at a constant rate of 2.6 ft/s. (a) How rapidly is the area enclosed by the ripple increasing when the radius is 4 feet? The area is increasing at
  45. Trig

    An isosceles triangle has a height of 12.5 m (measured from the unequal side) and two equal angles that measure 55°. Determine the area of the triangle. Split in half the triangle is a right triangle, so it's three angles are 90%, 55% and 70%. I'm still not sure how to find ...
  46. GEOM B

    Check over my answers? 28. A kite has diagonals 7.8 ft and 6 ft. What is the area of the kite? A. 23.4 ft^2**** B. 46.8 ft^2 C. 41.4 ft^2 D. 10.8 ft^2 29. What is the area of a regular hexagon with an apothem 13 inches long and a side 15 inches long? Round the answer to the ...
  47. please help - area of a dodecagon?

    The distance between two opposite vertices of the dodecagon is 2. Find the area of the dodecagon. first, what is the area of a dodecagon and second how to find it with just the distance between two oppositve vertices. i found that a dodecagon can be divided into 24 triangles: ...
  48. math

    In any triangle the sum of the measures of the angles is 180. In triangle ABC, A is three times as large as B and also 16 larger than C. Find the measures of each angle. I also would like to know how to solve these problems: In isosceles trapezoid ABCD, the longer base, AB is ...
  49. mathematics,physics,life science,LO,afrikaans

    A number of circles are given and the area of the smallest circles is 4π.The area of the next circle is 9/4 times of the previous circle.if there are 6 circles,determine the length of the diameter of the last circle.
  50. earth

    an area of high pressure is referred to as a anticyclone, and an area of low pressure is called a cyclone. is percipitation generally accosiated with a cyclone or anticyclone?
  51. algebra

    The area of a rectangle is 144in^2. The length is 4 times greater than the width. Which quadratic equation represents the area of the rectangle? a) w(w - 4) = 144 b) w(w + 4) = 144 c) w(4w) =144 d) w(4 - w) = 144
  52. math

    if the sides of a square are increased by 5 cm the area of the new square is four times the area of the original square. Find the length of a side of the original square.
  53. ranjeet singh model school

    A square lawn is surrounded by a path 2.5m wide, if the area of the path is 165m square, find the area of the lawn
  54. physics

    A wire of length L m has 2 ohms resistance. It is stretched twice its original length and its area becomes half of its original area. What is its new resistance?
  55. Calculus

    Let F(a) be the area between the x-axis and the graph of y=x^2cos(x/4) between x=0 and x=a, for a>0 (consider the area to be negative if the graph lies below the axis). Find a formula for F(a).
  56. Calculus

    Let F(a) be the area between the x-axis and the graph of y=x^2cos(x/4) between x=0 and x=a, for a>0 (consider the area to be negative if the graph lies below the axis). Find the formula for F(a).
  57. geometry

    Ø What is the effect on the area of a triangle if the base is doubled and the height is cut in half? What happens to the area, if the base is doubled and the height remains the same?
  58. Math 115

    The area of a parallelogram is 3.36 square feet. The base is 2.8 feet. If the measures of the base and height are each doubled, find the area of the resulting parallelogram.
  59. Pre algebra

    find the area of the triangle with base 2 1/5 yards and height 5/8 yard.( The area of a triangle equals half the product of its base and height)
  60. math

    Ø What is the effect on the area of a triangle if the base is doubled and the height is cut in half? What happens to the area, if the base is doubled and the height remains the same?
  61. Math help

    A pyramid has a height of 5 in. and a surface area of 90 in2. Find the surface area of a similar pyramid with a height of 10 in. Round to the nearest tenth, if necessary
  62. math

    A pyramid has a height of 5 in. and a surface area of 90 in2. Find the surface area of a similar pyramid with a height of 10 in. Round to the nearest tenth, if necessary?
  63. 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)
  64. 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 =
  65. Math

    A rectangular playground has an area of 2,996 square yards.if the width of the rectangle is 28,what is the length? Part#1 What is the area of the rectangle in square feet? Part#2
  66. Algebra

    A farmer has 260 feet of fencing to make a rectangular corral. What dimensions will make a corral with the maximum area? What is the maximum area possible? Thanks.
  67. Math

    A rectangular garden is to be fenced off and divided into 3 equal regions by fencing parallel to one side of the garden. 200 feet of fencing is used. find the dimensions of the garden that maximizes the total area enclosed. what is the maximum area?
  68. science

    CAN ONE IN THEORY OR ACTUAL DEPRIVE A PARTICULAR AREA OF SPACE; 1sq mile of space of oxygen while the surrounding area of space has normal levels of oxygen?.... This question is not limited by the use of other chemicals or machinations to achieve GOAL....
  69. 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
  70. calculus

    suppose that the area under the curve y=1/x from x=a to x=b is k. the area in terms of k, under the curve y=1/x from x=2a to x=2b? justify
  71. 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.
  72. Math 7 - Formula of a Surface Area of RectangularP

    what is the formula of Surface Area of Rectangular Prisms
  73. Math

    Circle X has an area of 36pie, and a circle Y has an area of 18pie. What is the ratio of the circumference of X to the circumference of Y.
  74. math

    The area of a table top can be represented by l× w where l is the length and w is the width.What is the area of the table top if l=60 in and w=40 in?
  75. math

    parallelogram A is similar to Parallelogram B. If the area of parallelogram b is 162 square units, what is the area of parallelogram A?
  76. 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?
  77. Math

    The area of each unshaded rectangle is given (the areas given are ( 30 in.², 45 in.², 72 in.²)). What is the area of the shaded rectangle?
  78. Calculus

    The area of a square with a side s is A(s)=s^2.What is the rate of the change of the area of a square in respect to its side?
  79. 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?
  80. geometry

    Theres a circle with an equilateral triangle in the middle. The traingles edges all touch the circle. The radius of the circle is 8 meters. How do I find the area of the triangle? Sorry The triangles edges don't touch the circle, the points do. Did you mean the vertices of the...
  81. American History 110

    Compare English settlement in the Chesapeake area and the New England in terms of goals, governments, social structures, and religion. What similarities do you find most remarkable? What differences do you find interesting? Which area seems more like old England?
  82. maths

    A car dealership fences in a rectangular area behind their building to secure unsold vehicles. One length will be the back wall of the dealership. What is the maximum parking area that can be created if they have 2 km of fencing to use? HELP PLS. show you work for ...
  83. 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 : 18 c. 10 : 5 d. 9 : ...
  84. math

    I am a little lost on my homework can someone help me with these problems please! With a GM MasterCard, 5% of the amount charged is credited toward a rebate on the purchase of a new car. Express the R as a function of the amount charged A Write a formula that describes the ...
  85. Math

    I have a 3 part question that I have the answers for but I am still having issues understanding it. Looking for help with the explanation / steps on how you would get the answer. Question 1) The width of a rectangular field is 3h yards and it's length is 3 yards longer than ...
  86. 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 square miles. Assume ...
  87. Math

    If two cylinders are similar, find the scale factor of the smaller figure to the larger figure. The surface area of the smaller area is 20 pi yards squared. The surface area of the larger cylinder is 125 pi yards squared. No radius or height is given, and I need to find the ...
  88. Algebra

    Algebra Word Problems: 1. The length of the floor of a one-storey building is 14 feet longer than its width. The building has 1,632 square feet of floor space. Write a quadratic equation for the area of the floor in terms of w. Find the length and width of the floor. 2. A ...
  89. Math

    I am doing a project, are my answers correct? 1. Find and simplify the volume-to-surface-area ratio for each of the three possible ice cube shapes. You can use this chart. |Shape| S/A Formula|Volume Formula Cube | S.A=6s^2 | V=s^3 6/s Sphere|S.A+4 pi r^2|V=4/3 pi r^3 3/r ...
  90. Math

    Two perpendicular diamters(cutting each other at right angles) of a circle cut the circumference at four(4) points. A square is formed by joining the 4 points. If the circumference of the circle is 132cm, find the area of the square. so right here they tell me first to find ...
  91. algebra function

    Area of a window. A window is in the shape of a square of side s, with a semicircle of diameter s above it. Write a function that expresses the total area of the window as a function of s.
  92. Math

    The bases of a prism are right trinanges with side lengths 6 meters, 8 meters and 10.. The height of the prism is 3 meters. What's is the lateral area of the prism? What is the total surface area?
  93. Algebra

    Patchwork. A quilt patch cut in the shape of a triangle has a base of 5x inches and a height of 1,732x inches. What polynomial represents its area? Answer: Area of triangle is ½*b*h B=5x H=1732x A=1/2*5x*1732x=4330x^2 A=L*W L=2x-1 W=x+12 A=(2x-1)*(x+12) A=2x^+24x-x-12=2x^2+...
  94. 3rd grade math

    Emma has 36 feet of fence. She wants to make the largest rectangular area possible for her rabbit to play in. What length should she make each side of the rabbit pen? Show your work and explain how you found the largest area.
  95. Math OPTIMIZATION

    A home gardener plans to enclose two rectangular gardens with fencing. The dimensions of the garden: x by 12-x, y by 12-x-y a. Find the values of x and y that maximize the total area enclosed. b. What is the maximum total area enclosed? c. How many meters of fencing are needed?
  96. maths-urgently needed

    A cube or a cuboid had the volume the measurement of the cubiod area in the ratio 1:2:3 if the difference between thee cost of painting the cuboid & cube (whole surface area) at the rate of 5m is rs80 find their volume
  97. Math

    The circular area A in square centimetres of a healing wound is given by A(r)=πr^2 Where r =the radius in centimetres. Find the rate of change of the area with respect to the radius. My work: I'm not really sure if this is correct but I gave it a try. Dy/dx =π*2r^2-1...
  98. Math, Quadratic Equations

    A photograph measures 20cm by 16cm. A strip of constant width is to be cut off the top and one side of the photo, so the area is reduced to 60% of the area of the original photo. Find the width of the cut. Thank you so much!
  99. Physics - Capacitance

    In the case of having two plates of a capacitor, in the formula for capacitance C = (Epsilon)(A/d), is A the sum of the areas of each plate or just the area of one plate? And if it is the latter, then it can be assumed that both plates have the same area, right?
  100. 5th grade Math

    A rectangle has a perimeter of 12 m. If each side is a whole number of meters, what are the possible dimensions for the length and width? List them and explain your answer.
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