C, x = +-7. Difference of squares
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Answer:
B
Step-by-step explanation:
Hurricane classification is based on max wind speed of the hurricane.
No, certainly not. The slope is undefined if and when the line in question is vertical.
Answer:
-0.25 ; 120 seconds 72 seconds
Step-by-step explanation:
Dive rate is constant :
Change in elevation after 8 seconds :
18 feets to 20 feets below
Rate of change = distance / time
(18 - 20) feets / 8 seconds
(-2 / 8) = - 0.25 feets per second
To reach 50.feets :
She needs to cover (50 - 20) = 30 feets
Time = distance / speed ; 30 feets / 0.25 = 120 seconds
C.) At the time update was requested, elevation = 18 feets below sea level
Surfave of water = 0 feets
Since rate is - 0.25 feets per second
Time = (0 - 18) / - 0.25
Time = - 18 / - 0.25
Time = 72 seconds
72 seconds update was requested, deliver was at the surface