1. How many significant figures are in each of these numbers? a) 768 b) 0.000086 c) 8.0 d) 43,000 e) 3.0200x106 f) 7.9800 g) 98.0010 h) 0.0087600 i) 0.00202

a) There are 3 significant numbers in 768

b) There are 2 significant numbers in 0.000086

c) There are 2 significant numbers in 8.0

d) There are 5 significant numbers in 43,000

e)  There are 11 significant numbers in 3.0200x10^6

f) There are 5 significant numbers in 7.9800

g) There are 6 significant numbers in 98.0010

h) There are 5 significant numbers in 0.0087600

i) There are 3 significant numbers in 0.00202

Step-by-step explanation:

How many significant figures are in each of these numbers?

a) 768

There is no decimal so, all digits are significant numbers.

There are 3 significant numbers in 768

b) 0.000086

There is decimal point in this number. Zero's on leading (right) side of the number are not considered significant. Only non-zero values are considered significant.

So,  There are 2 significant numbers in 0.000086

c) 8.0

There is decimal point in this number. Digits on left side and right side of the decimal are considered significant

So,  There are 2 significant numbers in 8.0

d) 43,000

There is no decimal so, all digits are significant numbers.

There are 5 significant numbers in 43,000

e) 3.0200x10^6

It can be written as: 3.0200000000

There is decimal point in this number. Digits on left side and right side of the decimal are considered significant

So,  There are 11 significant numbers in 3.0200x10^6

f) 7.9800

There is decimal point in this number. Digits on left side and right side of the decimal are considered significant

So,  There are 5 significant numbers in 7.9800

g) 98.0010

There is decimal point in this number. Digits on left side and right side of the decimal are considered significant

So, There are 6 significant numbers in 98.0010

h) 0.0087600

There is decimal point in this number. Zero's on leading (right) side of the number are not considered significant. Only non-zero values are considered significant.

So, There are 5 significant numbers in 0.0087600

i) 0.00202

There is decimal point in this number. Zero's on leading (right) side of the number are not considered significant. Only non-zero values are considered significant.

So, There are 3 significant numbers in 0.00202

correct answer:

b.(19,-2)

898.1666667

step-by-step explanation:

5389/6 = 898.1666667