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x = 9.21 ft

Step-by-step explanation:

This is a right angled triangle as you can see the symbol that shows this, meaning to find x we can use pythagoras theory:

We need to find one of the sides so rearrange the equation so the subject is a or b:

Plug the values in:

Square root both sides to find a:

a =

a = 9.21

x = 9.21

Hope this helps!

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11

y=20x

: )

hope this