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The first pentagon is dilated to form the second pentagon.

Drag and drop the answer to correctly complete the statement.

The scale factor is .

a 0.5

b 1

c 2

d 3

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

Nina has prepared the following two-column proof below. she is given that ∠oln ≅ ∠lno and she is trying to prove that ol ≅ on. triangle oln, where angle oln is congruent to angle lno step statement reason 1 ∠oln ≅ ∠lno given 2 draw oe as a perpendicular bisector to ln by construction 3 ∠leo ≅ ∠neo transitive property of equality 4 m∠leo = 90° definition of a perpendicular bisector 5 m∠neo = 90° definition of a perpendicular bisector 6 le ≅ en definition of a perpendicular bisector 7 δole ≅ δone side-angle-side (sas) postulate 8 ol ≅ on cpctc nina made two errors in the proof. identify and correct the errors.

For what values of a is the sum of the fractions 2a−1 / 4 and a−1 /3 positive?