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SCIENTIFIC NOTATION

A number is in scientific notation if it is written in the form

a x 10n

where n is an integer and 1 < |a| < 10

Ex: 3.4 x 106, 5.43 x 1013, 9 x 10-10

WRITE EACH NUMBER IN SCIENTIFIC NOTATION

a)14, 070, 000b) .004003

c) 345.8 x 102 d. 2 hundredths

EXAMPLE

Simplify 7 x (4 x 105).Give your answer in scientific

notation.

MULTIPLYING POWERS WITH THE SAME BASE

For any nonzero number a and any integers m and n, am an = am+n

Ex: 34 35

SIMPLIFY EACH EXPRESSION

a) 103 10 -5 b) (a2b5)(a3)

c) (x -2y7)(4x3y) d)

(1.09)2(1.09)-2

e) f)

CLASSWORK/HOMEWORK

P. 388 #2-20 evenP. 393-394 #2-10 even, 20-26 even