D divided by 4 plus 12 = 20
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what is d

Determine whether triangle tjd is congruent to triangle sek  givent (-4,-2), j (0,5), d (1,-1), s (-1,3), e (3,10), k (4,4)and explain the reason.  select one: a. yes, by sssb. no, by aasc. no, by asad. yes, by sas

Which of these triangle pairs can be mapped to each other using two reflections?

Use sigma notation to represent the following series for 9 terms.