A rectangular pond measures 3 m by 5 m. A concrete walk of uniform width (the same width on all sides) is constructed around the pond. If the walk and pond together cover an area of 39 square meters, write an equation that can be used to find the width x of the walk?

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step-by-step explanation:

the answer is a) y= 2 csc [0.5 (x+pi/2)]-1

step-by-step explanation:

answer: a

step-by-step explanation: the answer is a due to the rule of symmetry; that a line of symmetry must divide a figure into 2 pieces that are the exact same, only reflected over a line of symmetry. b and c do not have lines of symmetry and would not divide the figure evenly, thus making the answer a.