An oil storage tank ruptures at time t = 0 t=0 and oil leaks from the tank at a rate of r ( t ) = 75 e − 0.04 t(t)=75e-0.04to liters per minute. How much oil leaks out during the first hour

Approximately 1705 liters of oil leaked out during the first hour.

Step-by-step explanation:

We are given the following in the question:

The rate of oil leak is given by:

This function gives the rate of leakage in liters per minute.

We have to find the amount of water leak during the first hour.

It can be calculated as:

Thus, approximately 1705 liters of oil leaked out during the first hour.

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500