a. The height of a tree is 15 m correct to the nearest metre.
Write down the range in which the height of the tree lies.
b. The weight of a pill is 0.14g correct to 2 d.p. Find the range in which the actual weight lies.
c. The length of each side of a square is 2.8m correct to 1 d.p. i)Calculate the largest and smallest possible lenghth of each side.
ii) Using 's' metres for the side, write the range of values in which the actual length 's' must lie.
d. It is stated that the number of books in a box is 300 to the nearest 10. Find the max. and min. number of books.
Can you also please show some sort of working so I can understand if they are wrong.
a. I don't understand "nearest metre" how much IS that?
b. Lower bound= 0.135
Upper bound= 0.145
therefore class interval is 0.135 is less than or equal to 0.14 is less than 0.145.
c. Lower bound= 2.795
Upper bound= 2.805
ii. therefore 2.795 is less than or equal to "s" is less than 2.80
2006-09-30 00:39:42 · 2 answers · asked by forget it 1 in Education & Reference ➔ Homework Help