The area of a rectangular parking lot is represented by the expression 25x4 − 9y4. The length and width of the rectangular parking lot can be represented by expressions of the form a + b and a − b. Which expression represents the length? options: 25x + 9y 25x2 + 9y2 5x + 3y 5x2 + 3y2

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X2 + y 2 = 36 x + y = 6 solve the system of equations.

What is the sum of the geometric series in which a1 = 7, r = 3, and an = 1,701? hint: cap s sub n equals start fraction a sub one left parenthesis one minus r to the power of n end power right parenthesis over one minus r end fraction comma r ≠ 1, where a1 is the first term and r is the common ratio