91.Assume that ais a number greater than 1. Arrange the following terms in order from
least to greatest: , , ,. Explain how you decided on the order.
92.Devise a rule that tells whether an exponential expression with a negative base is posi-
tive or negative.Compound interestis interest paid on the
principal and the interest earned earlier.
The formula for compound interest, which
involves an exponential expression, iswhere Ais the amount accumulated from
a principal of Pdollars left untouched for
n years with an annual interest rate r
(expressed as a decimal).In Exercises 93– 96, use the preceding formula and a calculator to find A to the nearest cent.- , , 94. , ,
95.P=$1500, , r=0.035n= 6 96.P=$2000, , r=0.025n= 4
P=$250r=0.04n= 5 P=$400r=0.04n= 3A=P 11 +r 2 n,- 1 - a 23 - a^31 - a 24 - a^4
5.2 Integer Exponents and the Quotient Rule
Give the reciprocal of each number. See Section 1.1.Perform each subtraction. See Section 1.5.
- 103.Subtract from - 6 - 3. 104.Subtract from - 3 - 6.
8 - 1 - 42 - 4 - 8
- 0.5
1
8
9 - 3
PREVIEW EXERCISES
OBJECTIVES
Integer Exponents and the Quotient Rule
5.2
1 Use 0 as an
exponent.
2 Use negative
numbers as
exponents.
3 Use the quotient
rule for exponents.
4 Use combinations
of rules.