Question

Match the following numbers with the correct number of significant digits they possess. Answers may repeat. (4 points)

( )172
( )450.0 x 10^3
( )3427
( )0.0000455
( )0.00456
( )2205.2
( )107.20
( )0.0473

A. 4
B. 3
c. 5

Answer 1

(B. 3) 172 All nonzero digits are significant.

(A. 4) 450.0 x 10^3 Trailing zeroes after the decimal point are significant.

(A. 4) 3427 All nonzero digits are significant.

(B. 3) 0.0000455 Leading zeroes are not significant.

(B. 3) 0.00456 Leading zeroes are not significant.

(C. 5) 2205.2 Zeroes between nonzero digits are significant.

(C. 5) 107.20 Trailing zeroes after the decimal point are significant.

(B. 3) 0.0473 Leading zeroes are not significant.