How do you order the following from least to greatest #4.8, sqrt17, -sqrt8, -4.2, sqrt25#?

1 Answer
Jan 21, 2017

Answer:

Square the numbers (not the negative signs) then place them in order.

Explanation:

#4.8^2# = 23.04,
#(sqrt17)^2# = 17,
- #(sqrt8)^2# = - 8,
- #4.2^2# = - 17.64,
#(sqrt25)^2# = 25, now order them least to greatest:
- 17.64, - 8, 17, 23.04, then 25 or

  • 4.2, - #sqrt8#, #sqrt17#, 4.8, #sqrt25#