5.1 Laws of Exponents

Ms. Ahearn

am an amn

23 24 27

an m amn

35 2

a m 1am,a0

1a m am

5 2 152

14 1 4

a0 1

am

anam n,a0

xy 4 x 4y 4

ab m ambm

ab

m

am

bm,b0

1x 2

x 2x 2 2 x 0

GROUPS:

Scientific Notation

c 10n

1c 10

n

How Many Stars in the Universe?

120,000 LY= Diameter of Milky Way13.8 Billion LY = Diameter of

Visible Universe

400 Billion in Milky Way

Stars in the Solar System?

http://www.youtube.com/watch?v=WuqB3aB6-RI

HMWK:

• p 333 – 335:• #3 – 39 m3, 41 – 44, • 57 – 69 m3• Read 5.2