Answer:
a = 4
Step-by-step explanation:
a^2 + b^2 = c^2
a= ?
b= 3
c= 5 (c is always the hypotenuse)
*plug in given values
a^2 + 3^2 = 5^2
a^2 + 9 = 25
 -9 -9
a^2 = 16
*find the square root
sqrt(a) = sqrt(16)
a = 4
 
        
                    
             
        
        
        
Answer:
b = 10
Step-by-step explanation:
The area (A) of a triangle is calculated as
A =  bh ( b is the base and h the height )
 bh ( b is the base and h the height )
Here h = 3x + 15 and A = 15x + 75, thus
 × b × (3x + 15) = 15x + 75
 × b × (3x + 15) = 15x + 75
Multiply both sides by 2 to clear the fraction
b(3x + 15) = 30x + 150
Divide both sides by (3x + 15)
b =  ← factor numerator and denominator
 ← factor numerator and denominator
   =  ← cancel the factor (x + 5) on numerator/denominator
 ← cancel the factor (x + 5) on numerator/denominator
   = 
   = 10
 
 
        
                    
             
        
        
        
Answer:
(1,3)
Step-by-step explanation:
 
        
                    
             
        
        
        
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