Answer: The initial value of a function is its value when equals zero. This is the same as the -intercept. We can see from the graph that our line crosses the -axis at the point zero, eight. Therefore, the initial value is eight.
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Step-by-step explanation:
All the interior angles are of measure 60 degrees.
We want to find the height of this triangle.  Call it h.  On the left side of this illustration is a right triangle with height h and base (1/2)(10), or 5.
The ratio of height to base is the tangent of 60 degrees:
                                     h
tan 60 degrees = --------------
                                      5
                                                   h
and tan 60 degrees = 1.73  = ------
                                                    5
Multiplying both sides of this equation by 5 yields h = 8.66.  This is |BD|.  This is the same as Answer B.
 
        
             
        
        
        
Answer:
 =
 = 
Step-by-step explanation:
 
        
             
        
        
        
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Answer:  
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Explanation:
Both legs are the same length, as indicated by the tickmark.
- a =  
- b =  
- c = x 
Use the pythagorean theorem to solve for x

 
        
        
        
The formula is 

We have:


Substituting these values into the formula, we have


 ⇒ divide each term by 16

 ⇒ find the pair of numbers that multiply to give 4 and sum gives -5 which is -1 and -4

 ⇒ We have two values of t

 ⇒ 


 ⇒ 

The time when the projectile reached 64 feet is at t=1 and t=4