Using the recursive definition for the following arithmetic sequence, find the second, third, and fourth terms of the sequence. Then write the explicit formula that represents the sequence.
A(n) = A(n-1)+5A(1)= 10

The second term, A(2), is “?”
(Simplify your answer.)

What is the ratio for the surface areas of the cones shown below, given that they are similar and that the ratio of their radil and altitudes is 4: 3? 23

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.

Solve the following: 12(x^2–x–1)+13(x^2–x–1)=25(x^2–x–1) 364x–64x=300x