Please help me. Thank you! Simplify tan(pi + arcsin2/3).
A. (2√5)/5
B. (3√5)/5
C. (2√13)/13

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

In the given triangle, ∠aed ∼ ∠ abc, ad = 6.9, ae = 7.2, de = 5.2, and bc = 10.2. find the measure of bd and ce. round your answer to the nearest tenth.

Factor the polynomial by its greatest common monomial factor.