1. Integers as Exponents

87. a1 =

88. a1 = a,

89. a1 = a, for any number a,

90. a1 = a, for any number a,
a0 =

91. a1 = a, for any number a,
a0 = 1,

92. a1 = a, for any number a,
a0 = 1, for any nonzero number a.

115. The standard compact disc used for software and music has a radius of 6 cm.

116. The standard compact disc used for software and music has a radius of 6 cm.

117. The standard compact disc used for software and music has a radius of 6 cm. Find the area of such a CD (ignoring the hole in the middle).

127. The standard compact disc used for software and music has a radius of 6 cm. Find the area of such a CD (ignoring the hole in the middle).

381. Lesson 5.1 Numbers