Express in Sigma Notation, but Do Not Evaluate

Q278: Evaluate the integral by making the indicated

Q279: A particle is moving so that

Q280: Evaluate <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6988/.jpg" alt="Evaluate if

Q281: A projectile is launched vertically upward from

Q282: Evaluate the integral by making the indicated

Q284: Evaluate <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6988/.jpg" alt="Evaluate ."

Q285: Answer true or false. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6988/.jpg" alt="Answer

Q286: Evaluate <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6988/.jpg" alt="Evaluate ."

Q287: Evaluate <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6988/.jpg" alt="Evaluate ."

Q288: Find the average value of <img