Is the data set approximately periodic?
If so, what are its period and amplitude?

A.) not periodic

B.) periodic with period of 3 and amplitude of about 7.5

C.) periodic with period of 3 and amplitude of about 15

D.) periodic with period of 4 and amplitude of about 7.5

Which is a logical conclusion based on the given information? a. figure abcd is a rhombus by the definition of a rhombus. b. segment ac is congruent to segment dc by cpctc. c. angle acb is congruent to angle adc by the angle-side-angle theorem. d. triangle acd is congruent to triangle cab by the hypotenuse-leg theorem.