Which rational exponent represents a square root?
A. 1 / 2
B. 3/2
C. 1/3
D. 1/4

1/2 rational exponent represents a square root.

Therefore, option A is correct.

Step-by-step explanation:

As we know that raising to the one-half power i.e. is the same

as taking the square root.

For example, taking the square root of 4 will determine:

so the expression becomes

            ∵

so, 1/2 rational exponent represents a square root.

Therefore, option A is correct.

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl