The power g2 is equivalent to 81. What is the value of 9-2?
-81
O
81

Plz which expression is equivalent to the expression below?

Scenario: a rectangular plot of ground is 5 meters longer than it is wide. its area is 20,000 square meters. question: what equation will you find the dimensions? note: let w represent the width. options: w(w+5)=20,000 w^2=20,000+5 (w(w+5))/2=20,000 w+2(w+5)=20,000

Solve for x where 0 equation: cot^2x+2cotx+1=0