What is the sum of the first six terms of the geometric series?
2 – 6 + 18 – 54 +
a)–486
b)–364
c)–40
d)122

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1. 2. ∠b and ∠y are right angles. 3.? 4.? which two statements are missing in steps 3 and 4? ∠x ≅ ∠c △abc ~ △zyx by the sas similarity theorem. ∠b ≅ ∠y △abc ~ △zyx by the sas similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem.

Maria solved an equation as shown below. what is the solution to maria’s equation?