2⁻³² = (-2²)⁻⁶ • (2⁻⁵)⁻⁴
2⁻⁵ = (2²)² • (2³)⁻³
2⁸ = (-2⁻⁴)⁻² • (2²)⁰
1 = 2⁴ • (2²)⁻²
Answer:
I think its um B(-1,-4).
The formula for the circumference of a circle = 2 x radius x pi
The radius is given as 21 cm and pi = 3.142
Circumference = 2 x 21 x 3.142 = 131.964 cm
thanks
Step-by-step explanation: