<u>Answer:</u>

<u>Solution:</u>
Given: x=30
To solve: 
On substituting the value of x,

On dividing 30 and 5 we get,

So, the option is 15.
the answer would be revenue
Exterior angles for n sides = 360/n = 17.14, n = 360/17.14 = <span>21 sides</span>
Answer:

Step-by-step explanation:
Given

Required
Integrate
We have:

Let

Differentiate

Make dx the subject

So, we have:



Express x^(10) as x^(5*2)

Rewrite as:

Recall that: 

Integrate

Substitute: 

Hence:

Answer:
y = 7.5
x = 7.5√3
Step-by-step explanation:
sin(30) = 1/2
cos(30) = √3/2
Above is rule
==>
y = 7.5
x = 7.5√3