The percent of sunlight,s, that reaches a scuba diver under water can be modelled by the equation?

April 22, 2009 | By Admin In Mathematics |

Rr R asked:

………by the equation 0.8^d X 1000% where d is the depth of the diver, in metres

a) At what depth does 64% of sunlight reach the diver?
b) What percent of sunlight reaches the diver at a depth of 10 m, to the nearrest percent?

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