1. Simplify the expression start fraction 7 superscript 9 baseline over 7 superscript 3 baseline end fraction.. (1 point)
7 superscript 3 baseline
7 superscript 6 baseline
7 superscript 12 baseline
1 superscript 6 baseline
2. Simplify the expression start fraction z superscript 8 baseline over z superscript 12 baseline end fraction.. (1 point)
z superscript 20 baseline
z superscript 4 baseline
start fraction 1 over z superscript negative 4 baseline end fraction
start fraction 1 over z superscript 4 baseline end fraction
3. Simplify the expression start fraction left parenthesis negative 3 right parenthesis superscript 4 baseline over left parenthesis negative 3 right parenthesis superscript 4 baseline end fraction.. (1 point)
left-parenthesis negative 3 right-parenthesis superscript 1 baseline
0
1
left-parenthesis negative 3 right-parenthesis superscript 8 baseline
4. Which expressions can be rewritten as 1 over the base raised to a positive exponent? (2 points)
start fraction b superscript negative 2 baseline over b superscript 4 baseline end fraction
start fraction w superscript 5 baseline over w superscript negative 3 baseline end fraction
Start Fraction 5 superscript 3 baseline over 5 superscript 5 baseline end fraction
Start Fraction 4 superscript 7 baseline over 4 superscript 7 baseline end fraction