The height, h (t), in feet, of a dolphin after it jumps above the water's surface at a given time, t, in seconds, can be modeled by h (t) = -2t + 12t. 15% 3D Which could be used to identify the time it will take the dolphin to reach its maximum height?

1 x=22.52

2: 65/39=604+39x

65x-39x=604

26x=604

x=604/26

×=23.23

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step-by-step explanation:

nndncnd cnn

snddnd

cant

step-by-step explanation: there is no picture

statement #3: proof- ang is congruent to ang ecd : angles are congruent.  

step-by-step explanation:

1: the missing angles in statement #3  

a.) acb  

reason- the reason why the answer is acb is because angle ecd and angle acb are both the same size *that's what the word congruent means this is really simple.  

2: the missing word in reason #3  

c.) vertical  

reason- the reason why the answer is vertical is because the angles in that diagram on figure 2 is slanted, which is vertical, and the e and a both lay on vertical lines. along with the other's, but e and a are the 2 main points you want to focus on. and c is kind of like your starting point, because c is for both angles, not just one.  

i hope that was and understanding.