Which expression is equivalent to ? A 2x3+122x^{3}+122x 3 +12 B 2x2+11x+122x^{2}+11x+122x 2 +11x+12 C 2x3+6x2+4x+122x^{3}+6x^{2}+4x+122x 3 +6x 2 +4x+12 D 2x3+8x2+3x+122x^{3}+8x^{2}+3x+122x 3 +8x 2 +3x+12

Will mark determine whether the conjecture is true or false. give a counterexample for any false conjecture. given: points r, s, and t conjecture: r, s, and t are coplanar. a) false; the points do not have to be in a straight line. b) true c) false; the points to not have to form right angles. d) false; one point may not be between the other two.

Collin did the work to see if 10 is a solution to the equation r/4=2.4

If t8 = 4 and t12 = −2, find the first three terms of the arithmetic sequence.