Devise the exponential growth function that fits the given data, then answer the accompanying question

Subject:MathPrice:2.87 Bought7

Share With

Devise the exponential growth function that fits the given data, then answer the accompanying question. Be sure to identity the reference point(t=0) and units of time.

Uranium-238(U-238) has a half-life of 4.5 billion years. Geologist find a rock containing a mixture of U-238 and lead, and determine that 57% of original U-238 remain; the other 43% has decayed into lead. How old is the rock?