10. 4,200 cm
This is the correct answer!
Answer:

Step-by-step explanation:
x^2-36
(x+6) ( x-6)
it's helpful to you
Answer:
h = P - r
Step-by-step explanation:
Given
P = h + r ( isolate h by subtracting r from both sides )
P - r = h
Answer:
x = 30° and 330°
Step-by-step explanation:
Assuming the intervals is {0 , 2π} or {0° , 360°}

So it means it lies in the 2nd and 4th quadrant because tangent is negative in the 2nd and 4th quadrant
so the two solutions are
x = 30° and 330° or

Explanation is given step by step just below:
tan(theta(t))=y(t)/x(t)
differentiate
sec^2(theta(t))*theta'(t)=y'(t)x(t)-y(t)x'(t)/x^2(t)
thus
theta'(t)=(y'(t)x(t)-y(t)x'(t))
divided by (x^2(t)*sec^2(θ(t))