Rewrite using radicals

√7; ∛13²; ⁵√x³; and the last is b root of m to the power of a

Step-by-step explanation:

When you take a number to the power of a fraction, you write it as the root of the denominator to the power of the numerator.  The denominator is the bottom number and the numerator is the top number.  

the circumference of a circle is, 10.676 cm.

step-by-step explanation:

the formula for circumference of a circle is given by:

where

c is the circumference of a circle and

d is the diameter of a circle.

given: diameter(d) = 3.4 cm and use

substitute these values in [1] we get;

cm

therefore, the circumference of a circle is, 10.676 cm