Question

1. A house is advertised as having 2250 square feet under roof. What is the area of this house in square meters? (PLEASE show ALL Diagrams/Details!!: (1.000m - 3.281 ft) 2. Use the rules for significant figures to find the answer to the addition problem: 21.4 + 15 + 17.17 +4.003 = 3. A ladder leans against the side of a building. The bottom of the ladder is 5.00 m from the building. If the ladder is inclined at an angle of 65.0° to the horizontal, what is the length of the ladder? (PLEASE show ALL Diagrams/Details!!: (PLEASE show ALL 4. a) Find the polar coordinates corresponding to: (x,y) = (-2.75m, 1.25m Diagrams/Details!!): b) Find the Cartesian coordinates corresponding to: (r. 0) = (3.00m, 63.0°) (PLEASE show ALL Diagrams/Details!!:

Answer 1

0 Area of house in square feet 2 2250 - meter - 3.28) fo ift - 3.18, I square ft = (28) for 2250 square ft = ( 7. 2250 2209.011 m2 Add them ordinar. 21-4+18 +17.17 +4.0.03 = 57.573 Now, the least precise number is 15 containing only two significant digits. Hence the answer should have two agnificant digits die... 57.573 - 57.6 – 58 Hence Answer – 58 ladder building Soso ③ As, it is clear from diagram that this figure makes right angle triangle, we can use trigonometry. Base are a coso ; where typetenesse is hypotanche length of ladder . Cos 650 & 5 - H= 5 sec 650 – 11.831 m sm

91 y @ )= (-2.75m,le2 sm) polar coordinates can be written as (2,8). Now to Jay-12-75*+(125 - 3.02 meter Now ton de 1951 * = 24. 44395 0 - 180 - $ 155.55° Polar coordinates = (3.02m, 155.550) b) Given (4,0) = (3.00m, 63.6) Cartessan Coondinates x- & coso y a re sino na 3.00 x cos 63 2 ya 3.00 x sin 63 = 2.673 m 1.36 19 m (2.673 m, 1.362 m) cartesian coordinates