Answer:
somethings not right lm.ao
For the time period of the projectile at least 192 feet above the ground is between 2 second and 6 second
Since s=128t-16t2, we want to know the 2 times where 128t-16t2=192, as those two values will be the begin and end times of the interval in question. We can rewrite that equation in standard quadratic equation form:
16t2-128t+192=0 or, simplified, 8t2-64t+96=0
or t2-8t+12=0
since it is now in quadratic form, we can solve using the quadratic formula:
t = 2 and 6
So the time period from approximately 2 second and 6 second has the projectile above 192 feet.
Learn more about projectile here:
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A. 6 pounds of apples for $9
9/6=1.5=$1.50 per pound
they are moving on a moving object
if they went onward with the bus going forward, they would go mph faster;
The answer would be the last one.