every person shook a hand once there were 66 handshakes so that means there were 11 people there
Answer
36.45?
Step-by-step explanation:
I think you just divide 85 by 35 and multiply 15 with that answer. 85/35 = 2.43
15x2.43 = 36.45
A=BH 17×9=153 16×6=96 153-96=57
13 is 57
Answer:x = −112/81
Step-by-step explanation:
Given equation is
To find the x coordinate of vertex we use formula
From the given equation a= 2, b= 8 and c= -5
Plug in all the values
The x coordinate of vertex is x=-2
To find y coordinate of vertex we plug in -2 for x in the given equation
So vertex is (-2,-13)