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The amount of money in a savings account is given by the function m (t) = 5t 2 + 10, where t is the time in years. after how many years will the account balance be approximately $350?
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The amount of money in a savings account is given by the function m (t) = 5t 2 + 10, where t is the time in years. after how many years will the account balance be approximately $350?

User Rhoda
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We know 350 = 5t^2 + 10

So 5t^2 = 340

t^2 = 68

Take the square root of both sides to get t = 8.246 years.
User Rodrigo Oliveira
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