# Does any of the following pairs have the same number of significant figures?

##
(a) 90. and 90.00

(b) 11 and 11.00

(c) 417.000 and 417

(d) 4 and 4.0

(e) 2 800.000 and #2.80 × 10^3#

(a) 90. and 90.00

(b) 11 and 11.00

(c) 417.000 and 417

(d) 4 and 4.0

(e) 2 800.000 and

##### 1 Answer

Jul 6, 2016

The answer is **NO** to all questions.

#### Explanation:

All pairs of numbers differ in their **precision**.

To a scientist, the precision of a measurement is **important**.

The precision is determined by the number of **significant figures**.

**(a)** 90. has 2 significant figures, while 90.00 has 4 significant figures.

**(b)** 11 has 2 significant figures, while 11.00 has 4 significant figures.

**(c)** 417.000 has 6 significant figures, while 417 has 3 significant figures.

**(d)** 4 has 1 significant figure, while 4.0 has 2 significant figures.

**(e)** 2,800.0000 has 8 significant figures, while