5x - 2x = 63 + 57
3x = 120
x = 40
        
             
        
        
        
X^2 = 8^2 + 5^2
x^2 = 64 + 25
x^2 = 89
x =
<span>
<span>
<span>
9.4339811321
</span>
</span>
</span>
        
             
        
        
        
Answer:
Answer is 16/12
Step-by-step explanation:
Tan is Opposite by Adjacent. the opposite side is 16, adjacent side is 12 and hypotenuse is 20.
so O/A= 16/12 
 
        
                    
             
        
        
        
Answer:
<em>C.</em> 
Step-by-step explanation:
Given

Required
Determine which binomial expansion it came from
The first step is to add the powers of he expression in brackets;


Each term of a binomial expansion are always of the form:

Where n = the sum above

Compare  to the above general form of binomial expansion
 to the above general form of binomial expansion

Substitute 6 for n

[Next is to solve for a and b]
<em>From the above expression, the power of (5) is 2</em>
<em>Express 2 as 6 - 4</em>

By direct comparison of 

and 

We have;

Further comparison gives



[Solving for a]
By direct comparison of 



[Solving for b]
By direct comparison of 


Substitute values for a, b, n and r in



Solve for 








<em>Check the list of options for the expression on the left hand side</em>
<em>The correct answer is </em> <em />
<em />
 
        
             
        
        
        
C; 50 is the answer, since two of the sides are congruent...100/2 is 50