Which of the following sets of numbers could not represent the three sides of a right triangle?
{20, 48,52}
{40, 75, 85}
{14, 47,50}
{13, 84, 85}

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

The graph of h(x)= |x-10| +6 is shown. on which interval is this graph increasing

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)