If f(x) = 2x2 + 1, what is f(x) when x = 3?

Name these type of angles shown check all that applies

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827

William invested $5000 in an account that earns 3.8% interest, compounded annually. the formula for compound interest is a(t) = p(1 + i)t. how much did william have in the account after 6 years? (apex)