10cm is the correct answer
<span>A rule that represents this function is y = (x + 8)².</span>
The rule looks like √y = (x + 8)
Now square both sides
<span>y = (x + 8)²</span>
y = x² + 16x + 64
<span>I am hoping that this answer has satisfied your query and it will
be able to help you in your endeavor, and if you would like, feel free to ask
another question.</span>
X^-n = 1/x^n
Your fraction becomes:
1/ {(m^5 t^2)(27m^6t^3)} now combine the powers in the denominator
1/ (27 m^11 t^5)
The equivalent to that is 8.
3(7v-5)-v(10v-9) = 21v - 15 -10v² + 9v = - 10v² + 30v - 15