Which expression is equivalent to (144k2r14)1/2 for all positive values of k and r ? A.144kr7

B.12kr7

C.12k2r4

D.72k2r14

12kr⁷ is the equivalent expression.

Step-by-step explanation:

We need to find an expression that is equivalent to

We know that, 12² = 144

So, the equivalent expression is . Hence, the correct option is (B).

step-by-step explanation:

a)(x-2)^2+(y-1)^2=9

step-by-step explanation:

(picture explains)