Which of the equations are true identities? A. n° + 3n+ 2n = n(n+1)(n + 2)
B. (a + 3)2 - 9=a+ 6a

When are triangles considered similar? a. corresponding angles are equal andcorresponding sides are proportionalb. corresponding angles are proportional andcorresponding sides are equalc. corresponding angles are equal orcorresponding sides are proportionald. corresponding angles are proportional orcorresponding sides are equal select the best answer from the choices providedmark this and retumsave and exitnext

Write the expression 7x^3-28xy^2 as the product of 3 factors

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.