Question

Help please with last questions on home work ♥

1000 meters = 1 kilometer is a measurement with one significant figure.

True
False

Answer 1

true,

The best way to determine nbr of sigfigs is called the
Pacific-Atlantic rule.

If a decimal is Present..start on Pacific (left hand) side
when come to first non-zero digit, start counting every digit until the end.

If a decimal is Absent...start on Atlantic side,
when come to first non-zero digit, start counting every digit until the end.


examples
0.123
Present-so start Pacific side...first non-zero digit is "1"
so are 3 sigfigs


123000
decimal is Absent, so start on Atlantic side
first nonzero is "3)
so 3 sigfigs

1.0
Present so 2 sigfigs