Answer: 16 ft²
Step-by-step explanation:
use the following equation:
(1/2)bh
substitute in your values:
(1/2)(5)(6.4) = 16 ft²
Step-by-step explanation:
the area is

will max if
a. x = 2
and the max area is
b 32
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13323132
32
12
3
3
312
123
23
323
3
3213
F(x) = X^2 - 11x - 60
Two terms that multiply to -60 and add to -11 so...
F(x) = (X - 15) (x + 4)
Your x-intercepts would be 15 and -4.