Answer:
I dont think this question is formated correctly. i does not equal to -1. However, If you are wondering about i^-3. it is -i. Otherwords it is D. Hope this helped.
Answer:
113.04ft
Step-by-step explanation:
Radius of circle + width of outer circle
15 + 3 =18ft
Circumference of the outer edge becomes
2 × 3.142 × 18
=113.04ft
The answer is a parallelogram. Quadrilateral have 4 sides, and if there are not right angles, it cannot be a rectangle because that is the added characteristic of rectangles. All rectangles are actually parallelograms, but only parallelograms will have exactly 2 pairs of parallel sides with no right angles. The statement says "may" because as I mentioned before, rectangles are parallelograms too!