Answer:
C OR D 
Step-by-step explanation:HOPE IT HELPSS!!!
 
        
                    
             
        
        
        
Answer: 
Step-by-step explanation:
The exponent 1/3 is the same thing as cube rooting the expression.
![\sqrt[3]{27\sqrt[3]{z^2} }](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B27%5Csqrt%5B3%5D%7Bz%5E2%7D%20%7D)
3*
Hope it helps <3
 
        
             
        
        
        
I got 11.5 lol I don’t really know why
        
             
        
        
        
Answer:
False
Step-by-step explanation:
 
        
             
        
        
        
Answer:
   a)  No. t < 0 is not part of the useful domain of the function
   b) 2.0 seconds
Step-by-step explanation:
a) A graph of the function is shown below. It shows t-intercepts at t=-0.25 and t=2.0. We presume that t is measured forward from some event such as the ball being thrown or hit. The model's predicted ball location has no meaning prior to that event, when values of t are negative.
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b) It is convenient to use a graphing calculator to find the t-intercepts. Or, the equation can be solved for h=0 any of several ways algebraically. One is by factoring.
   h = 0 = -16t² +28t +8 . . . . . . . . . . . . the ball hits the ground when h = 0
   0 = -4(4t² -7t -2) = -4(4t +1)(t -2)
This has t-intercepts where the factors are zero, at t=-1/4 and t=2. 
The ball will hit the ground after 2 seconds.