Answer:
The height of ball is 17 ft at t=0.55 and t=1.14.
Step-by-step explanation:
The general projectile motion is defined as

Where, v is initial velocity and y₀ is initial height.
It is given that the initial height is 7 and the initial upward velocity is 27.
Substitute v=27 and y₀=7 in the above equation to find the model for height of the ball.

The height of ball is 17 ft. Put h(t)=17.


On solving this equation using graphing calculator we get


Therefore the height of ball is 17 ft at t=0.55 and t=1.14.
 
        
             
        
        
        
I hope this helps have a good day
 
        
        
        
Answer:
45,45,90
Step-by-step explanation:
3x + 3x + 6x= 180
12x=180
x= 180/12= 15
3x=3×15=45
3x=3×15=45
6x=6×15=90
 
        
                    
             
        
        
        
Answer:
Have a nice day and remember to drink water
 
        
        
        
For a vector-valued function

the matrix of partial derivatives (a.k.a. the Jacobian) is the  matrix in which the
 matrix in which the  -th entry is the derivative of
-th entry is the derivative of  with respect to
 with respect to  :
:

So we have
(a)

(b)

(c)

(d)
