Q67: Solve the initial-value problem. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6988/.jpg" alt="Solve
Q68: Solve the initial-value problem. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6988/.jpg" alt="Solve
Q69: Use Euler's method with the step size
Q70: Solve the initial-value problem. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6988/.jpg" alt="Solve
Q71: Solve the initial-value problem. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6988/.jpg" alt="Solve
Q72: If <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6988/.jpg" alt="If the
Q73: Find the exponential growth model <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6988/.jpg"
Q75: Use Euler's method with the step size
Q76: For radioactive carbon-14, <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6988/.jpg" alt="For radioactive
Q77: A tank initially contains <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6988/.jpg" alt="A