Answer:

Explanation:
The equation is:

and

<u>1. Subsittute n = 6 into the equation:</u>

Now subsititute the known values:

You can solve for 

<u />
<u>2. Substitute n = 5 into the equation:</u>

Substitute the known values and solve for 

<u>3. Substitute n = 4 into the equation, subsitute the known values and solve for </u>
<u />


Answer:
55 degrees
Step-by-step explanation:
180-95-30=55
Answer: 4
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given

Required
Simplify the expression

Express the square root of 121 as 11


Express 90 as 9 * 10

Split the surd to 2

Express the square root of 9 as 3



Hence, the result of the expression is
