The volume of a sphere is 1928 m. What is the surface area of the sphere to the nearest tenth?
a. 1606.9 m² b. 24,228 m c. 142.1 m² d. 803.4 m?

Proceed as in example 3 in section 6.1 to rewrite the given expression using a single power series whose general term involves xk. ∞ n(n − 1)cnxn − 2 n = 2 − 4 ∞ ncnxn n = 1 + ∞ cnxn n = 0

Ihave trouble finding the nth term of a linear sequence

Sundar used linear combination to solve the system of equations shown. he did so by multiplying the first equation by 5 and the second equation by another number to eliminate the y-terms. what number did sundar multiply the second equation by? 2x+9y=41 3x+5y=36