If x= (4/5)^-2 divided by (1/4)^2,find the value of x^-1

Step-by-step explanation:

We are given the value of x:

divided by

We need to find the reciprocal of x or:

Operating:

10000

step-by-step explanation: divide by 2,

answer: the angel abc is 30°,and the abc is a triangle where the angel bac is 90°

so ac is the half of 24=12ft,and from the pythagorean theorem we find ba

ba=√bc^2-ac^2=√576-144=√432=12√3ft

so bac is 12+12√3=12(1+√3)ft