Find out the value of X, if√x=9

x=81

Step-by-step explanation:

when you convert the equation √x=9 to (√x)^2 =9^2. Then x will be 9^2. In other words, x=81

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step-by-step explanation:

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

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