olav

Most popular questions and responses by olav
  1. math

    Trapezoid ABCD, top and bottom are parallel. Left is 45, bottom is 60, right is 30, top is unknown. Trapezoid EFGH is similar to ABCD, top and bottom are parallel. Top is 10, other sides are unknown. Area of ABCD is 9 times larger than EFGH. What is the

    asked on December 11, 2010
  2. grade 9 math

    Trapezoid ABCD, top AD and bottom BC are parallel. AD is the smaller of the two parallel lines. Left AB is 45, bottom BC is 60, right CD is 30, top AD is unknown. Trapezoid EFGH is similar to ABCD, top EH and bottom FG are parallel. EH is the smaller of

    asked on December 12, 2010
  3. math

    There is on large rectangle ABCD, top line is AD and bottom is BC. A line is drawn from the top to bottom called GH. A line is drawn from left to right called EF. AEFG is Rectangle 1. EBHF is Rectangle 2. GHCD is Rectangle 3. All three rectangles are

    asked on December 11, 2010
  4. Gr. 9 math

    There is one large rectangle ABCD, top line is AD and bottom is BC. A vertical line is drawn from the top to bottom called GH (between points AD and BC). A line is drawn from left to right called EF (between points AB and GH). AEFG is Rectangle 1. EBHF is

    asked on December 12, 2010
  5. Grade 9 Math

    There is one large rectangle ABCD, top line is AD and bottom is BC. A vertical line is drawn from the top to bottom called GH (between points AD and BC). A line is drawn from left to right called EF (between points AB and GH). AEFG is Rectangle 1. EBHF is

    asked on December 12, 2010
  6. Gr. 9 Math (continued)

    I don't see a problem but I will rewrite the structure. Make two rectangles attached together. Call the first rectangle ABHG (AG top, BH bottom). Call the second rectangle GHCD (HC top, GD bottom). Draw a horizontal line from line AB to line GH and name

    asked on December 12, 2010
  7. math

    ------------------ 4cm | (1) | | |_____| | | | | 9cm | (2) | (3) | | | | ------------------ Rectangle 1 & 2 & 3 are similar. What is the area of Rectangle 3.

    asked on December 11, 2010
  1. Gr. 9 Math (continued)

    Thank you for all your help.

    posted on December 12, 2010
  2. math

    ( (5 x 5) x 2 ) + 5 = (25 x 2) + 5 = 55.

    posted on December 12, 2010
  3. Gr. 9 Math (continued)

    I looked at it another way. I used rectangle FEBH; area = 9 x EF. I used rectangle AEFG; area = 4 x EF. Ratio of area FEBH to AEFG = 2.25 The square root of area is ratio of the perimeters = 1.5 Perimeter of AEFG = 2 x 9 + 2 x EF Perimeter of FEBH = 2 x 4

    posted on December 12, 2010
  4. Gr. 9 math

    I reposted a better structure at 1:58 thank you for your help so far.

    posted on December 12, 2010
  5. Gr. 9 math

    I don't see a problem but I will rewrite the structure. Make two rectangles attached together. Call the first rectangle ABHG (AG top, BH bottom). Call the second rectangle GHCD (HC top, GD bottom). Draw a horizontal line from line AB to line GH and name

    posted on December 12, 2010
  6. math

    Simple. 250 x (40/100) x (46/100) = 250 x .4 x .46 = 46 applicants will be selected.

    posted on December 12, 2010
  7. Math

    look them up using goog.le

    posted on December 12, 2010
  8. Algebra

    There is no difference between 1-2 and 2-1 if you disregard the + or - in the final answer. Sometimes when I do calculations on the calculator and I forget which number is the larger, I will end up with a negative answer. I just remember that the answer

    posted on December 12, 2010
  9. grade 9 math

    Does this work for all trapezoids ? Is this true for all similar enclosed figures ? Can you help me with my other question posted minutes later than this one ?

    posted on December 12, 2010
  10. computer architecture

    A word is two bytes. A byte has 8 bits.

    posted on December 12, 2010
  11. grade 9 math

    I am still lost. How come the areas of similar figures (trapezoids) are proportional to the squeare of their corresponding perimeters.

    posted on December 12, 2010
  12. math

    20 percent is actually 20/100 or .2 87/8 is actually 10.875 The result is .2 x 10.875 or using fractions (20 x 87) / (100 x 8) = 1740 / 800 = 2 140/800 = 2 7/40 or 87/40

    posted on December 12, 2010