Explain what is wrong with the following problem if it’s supposed to be written in scientific notation. Then correct the problem. 423.71 x 10^5

Quadrilateral abcd in the figure below represents a scaled-down model of a walkway around a historic site. quadrilateral efgh represents the actual walkway. abcd is similar to efgh. what is the total length, in feet of the actual walkway?

Which expression is equivalent to (4 +6i)^2? ? -20 + 48i 8 + 12i 16 - 36i 20 + 48i

Find the value of x. give reasons to justify your solutions! c ∈ ae