Download Subtract exponents.

4-3 Properties of Exponents
• Copy in agenda and TOC
• #14 Dividing Powers with the Same Base
• On your desk: Math Folder, Spiral
Notebook, Agenda, and a Pencil
Course 3
4-3 Properties of Exponents
Probability Practice
The model of computer comes with two different
processor speeds, four hard drive capacities and four
different memory sizes.
How many configurations are there?
2 (speeds)
x
4 (hard drives)
x
4 (memories)
= 32
configurations
Course 3
4-3 Properties of Exponents
Probability Practice
Stewie is building a spaceship…
It comes in four styles, seven
sizes and can have three different
warp drives.
How many possible
combinations of spaceships
are there?
4 x 7 x 3 = 84
Course 3
4-3 Properties of Exponents
Probability Practice
You ask a friend to think of a
number from nine to thirteen. What
is the probability that his number will
be greater than eleven?
{ 9 , 10 , 11 , 12 , 13 }
11 < X = 12 & 13
2/5
Course 3
4-3 Properties of Exponents
Probability
Practice
A jar contains 4 blue
jelly beans, 5 pink jelly
beans and 7 green jelly beans, and you pick
one without looking. What is the probability
that the jelly bean will be neither green nor
We are Looking for a
blue?
Course 3
Pink Jelly Bean….
There are 5 Pink out of 16
total = 5/16
4-3 Properties of Exponents
Probability Practice
You roll a eleven-sided die(with numbers one - eleven).
What is the probability that the value of the roll will be
a prime number?
There are 11 sides to the di
and only 5 sides are prime.
5/11
Course 3
4-3 Properties of Exponents
Notice what occurs when you divide powers
with the same base.
55555
55555
55
2
=
5
•
5
=
=
=
5
555
555
53
Course 3
4-3 Properties of Exponents
Additional Example 2: Dividing Powers with the Same
Base
Divide. Write the quotient as one power.
A.
5
7
3
7
75 – 3
7
Subtract exponents.
2
10
B. x-9
x
x10 – (-9)
X10+9 = x19
Course 3
Subtract exponents.
Think: x1 = x
4-3 Properties of Exponents
Check It Out: Example 2
Divide. Write the product as one power.
A.
99
92
99 – 2
97
B.
e 10
e5
e10 – 5
5
e
Course 3
Subtract exponents.
Subtract exponents.