Question

In a proposed business venture, a businesswoman estimates there is a 60% chance she will make $55,000 and a 40% chance she will lose $67,000. Determine her expected value

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Her expected value is $

Answer 1

A land surveyor uses a coordinate plane to draw a map of a park, where each unit represents 1 mile. The park is in the shape of a parallelogram with vertices $\left(-2.5,1.5\right),\left(-1.5,-2.25\right),\left(2.75,-2.25\right)$ and $\left(1.75,1.5\right)$ . Find the area of the park.The area of the park is square miles.

Explanation: