Answer:
83.6 is a real number
Step-by-step explanation:
Since 83.6 83.6 is a real number, it is the real part (a) of the complex number a+bi a + b i . A real number does not contain any imaginary parts, so the value of b b is 0 0 . The answer is 83.6+0i 83.6 + 0 i 
 
        
             
        
        
        
Answer:
a) 1/2
b) 6/100
c)1/4
I'll explain how I got these answers later. 
 
        
                    
             
        
        
        
answer

explanation
since there are 2 x-intercepts, the lowest degree the function could possibly have is 2, so this could be the graph of a parabola
since our zeros are at x = 4 and x = -2, our factors are (x - 4) and (x + 2)
our equation so far is
(x - 4)(x + 2)
= 
= 
since the function is reflected across the x-axis, multiply the equation by -1

= 
since the function has a vertical stretch of 3, multiply the equation by 3

= 
 
        
             
        
        
        
Jake has 14 coins in his collection. 112 divided by 8 equals 14.