Here you need an adjective of the given word (Tech), so the answer is technical.
1128 feet = 1128/5280 miles
it travels at 1128/5280 miles per second
to convert to miles / hour we multiply by 3600
so speed of the bullet = (1128 * 3600) / 5280 = 769.1 mph to nearest tenth.
Answer:
(5,3)
I'm not soooo sure I'm %50 sure