Question

the function given by
P(d) =1+d/33
gives the pressure, in atmosopheres, at a depth of d feet. for what depths id the pressure atleast 1 atmosphere and at most 7

Answer 1

1 <= P(d) <= 7


1 <= 1 + d/33 <= 7


1 - 1 <= d/33 <= 7 - 1


0 <= d/33 <= 6


0*33 <= d <= 6*33


0 <= d <= 198


So for depths between 0 ft and 198 ft, the pressure will be at least 1 atmosphere and at most 7 atmospheres.

Answer 2

jim my friend, you are the man