10 square root of 2 should be ur answer:)
<span>Yes, the board is long enough. The board is 357 cm long and Suzanna only needs 350 cm length of the board to meet the requirement of 3.5m. </span>
1) 21 books * 17cm = 357 cm is the length of the board.
2) 1 meter = 100 cm
3.5 m * 100cm/1m = 350 cm require length of the board.
Answer:

Step-by-step explanation:

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hope it helps...
have a great day!!
Answer:
5 jumps
Step-by-step explanation:
Personally I would write it out, although there surely is a formula for it.
3 fall to 2 - 5 fall to 4 - 7 fall to 6 - 10 fall to 9 - 12.
This makes 5 jumps, since once he is out he won't fall back in.
Answer:
6i
Step-by-step explanation: