Answer:
A math test
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
F ( 2 , -2)
Step-by-step explanation:
 
        
             
        
        
        
The diameter is 16m Because the diameter is twice the radius
        
             
        
        
        
Answer:
Breadth = 8 cm
Length = 17 cm
Step-by-step explanation:
Given rectangle:
Breadth = x cm
Length = x + 9 cm
Area = length * breadth
         = x * (x + 9)
        = x² + 9x
Rectangle with length and breadth increased:
Breadth = x + 3 cm
Length = x + 9 + 3 = x + 12 cm
Area = 84 + (x² + 9x) cm²
 (x +3) * (x +12) = 84 + x² +  9x
Use FOIL method
x*x  + x*12 + 3*x + 3*12 = 84 + x² + 9x
       x² + 12x + 3x + 36  = 84 + x² + 9x  {add the like terms}
              x² + 15x  + 36  = 84 + x² + 9x
 x² + 15x + 36 - 84 - x² - 9x = 0
       6x - 48 = 0
              6x = 48
              x = 48/6
         x = 8 
Breadth = x = 8 cm
Length = x + 9 = 8 +9 = 17 cm
  
 
        
             
        
        
        
Answer:
Pendulum will swing by an angle 0.666π
Step-by-step explanation:
We have given arc = 
And length of the pendulum l = 150 cm 
Length of the pendulum will be equal to radius of the pendulum so r = 150 cm 
Arc is given by 
So 

So pendulum will swing by an angle 0.666π