Answer:
t = 0.722 seconds
Step-by-step explanation:
Given in the question that an equation
h = -16t² + 6t + 4
here h is the height
         t is the time
To solve this question we need to substitute height with zero because at ground level height is zero
<h3>h = 0</h3>
0 = -16t² + 6t + 4
<em>a = -16</em>
<em>b = 6</em>
<em>c = 4</em>
Formula to use
t = -b±√(b²-4ac) / 2a
Plug values in the formula
t = -6 ± √36-4(-16)(4) / 2(-16)
t =  6±2√73 / 32
t =  6+2√73 / 32 or t =  6-2√73 / 32
t = 0.722 or t = -0.347
since time can't be in negative so we reject  t = -0.347
 
        
             
        
        
        
Answer: y=8-6x
Step-by-step explanation:
 
        
             
        
        
        
Answer:
isnt there a sign after the 65w???
 
        
             
        
        
        
The undefined geometry term that is described as two-dimensional set of points that has no beginning or end is A LINE