来自邱进的问题
已知4.44449=4.9×他4n,则n为()A.4B.-4C.5D.-5
已知4.44449=4.9×他4n,则n为()
A.4
B.-4
C.5
D.-5
1回答
2020-09-07 17:06
已知4.44449=4.9×他4n,则n为()A.4B.-4C.5D.-5
已知4.44449=4.9×他4n,则n为()
A.4
B.-4
C.5
D.-5
0.00049=4.9×10-4.
故选:六.