Which of the following temperatures is most precise? a.250 degrees b.98.6 degrees c.57 degrees d.100 degrees

B.98.6

Step-by-step explanation:

A.250 degrees   This has 2 significant figures.  The last 0 is not significant

B.98.6 degrees   This has 3 significant figures

C.57 degrees   This has 2 significant figures

D.100 degrees  This has 1 significant figures

The more significant figures, the more precise

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2