Determine the area under the standard normal curve that lies to the left of (a) Upper Z equals negative 1.51 comma (b) Upper Z equals negative 0.22 , (c) Upper Z equals 1.23 , and (d) Upper Z equals 1.54 .

Acollege is planning to construct a rectangular parking lot on land bordered on one side by a highway. the plan is to use 680 feet of fencing to fence off the other three sides. what dimensions should the lot have if the enclosed area is to be a maximum?

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If $190 is invested at an interest rate of 11% per year and is compounded continuously, how much will the investment be worth in 4 years? use the continuous compound interest formula: a = pert