The correct answer is 34 units
Answer:
it may be 3
Step-by-step explanation:
it may be bcz am not much good but still just trying
30+15+12+3= 60
for mammal 30/60=0.50%
reptile 15/60=0.25%
fish 12/60= 0.20%
bird 3/60=0-05%
i hope that helps
n=18
a) is correct
b) y = -a(x - 2.5)² + h
(5.5,0)
0 = -a(5.5-2.5)² + h
h = 9a
a = h/9
48 = -a(0-2.5)² + h
h = 48 + 6.25a
h = 48 + 6.25(h/9)
h = 157.0909090681
Range: [0,157]
c) (80-144)/(4.5-3)
= -42⅔ or -42.67
