Gebra/x2f8bb11595b61c86: quadratic-functions-equations/x2f8b b11595b61c86: standard-form-quadratic/e/key-
rui is a professional deep water free diver.
his altitude (in meters relative to sea level), 2 seconds after diving, is modeled by:
d(x) = x2 – 102
how many seconds after diving will rui reach his lowest altitude?
seconds
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step-by-step explanation:

to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.

there are 70 more legs than eyes at the dog show (196 – 126 = 70). dogs have two more legs than eyes, and humans have the same number of legs as eyes. thus 70 is twice the number of dogs at the show, so the number of dogs is half of 70, which is 35. to get the number of humans, subtract 35 from 63: 63 – 35 = 28.

step-by-step explanation: