1. not equal to
2. equal to
at maximum. dt/dh=0
if you differentiate you will get
-32t=-100
t=3.125
The answer is has to be D
If xy=0 we assume x and y equal 0
so
the zeros are wehre f(x)=0
0=5(2x-5)(5x+4)
set each to zero
5 is not equal 0 so we don't do that
0=2x-5
5=2x
5/2=x
0=5x+4
-4=5x
-4/5=x
zeroes at x=5/2 and -4/5
The area of the parallelogram is 40 centimeters
