I’m not sure but I’m guessing it could be 8 ft
0,-2
4,4
2,0
3,5
Step-by-step explanation:
that was my answer
Take the deritiivive

it is zero at pi/4 and it repeats at every pi
minimum at where slope goesfrom negative to positive
so at 5pi/4 and 13pi/4 so at every 2pi interval
evaluate origial at 5pi/4

=

=

or aprox 1.22509
Answer: The answer is (d) 
Step-by-step explanation: Given equation to be factored is

The given expression is quadratic, so we can factor it into two linear factors, by using the following factorisation rule.

So, the given equation can be factorised using the above rule. The factorisation is as follows.

Thus, the correct option is (d).