The first term of an arithmetic sequence is -3 and the fifteenth term is 53. Find the common difference of the sequence, What is the 32nd term of the arithmetic sequence? Complete your work in the space provided or upload a file that can
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Find the value of the cosine for angle a

In the figure below, segment ac is congruent to segment ab: triangle abc with a segment joining vertex a to point d on side bc. side ab is congruent to side ac which statement is used to prove that angle abd is congruent to angle acd? segment ad bisects angle cab. triangle acd is similar to triangle abd. segment ad is congruent to segment ac. angle cab is congruent to angle cba.

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).