A variable needs to be eliminated to solve the system of equations below. Choose the correct first step.
- 2x + 9y = 58
2x - 10y = -64
O Subtract to eliminate y.
O Add to eliminate x.
O Add to eliminate y.
O Subtract to eliminate x.

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?

Does the function satisfy the hypotheses of the mean value theorem on the given interval? f(x) = 4x^2 + 3x + 4, [−1, 1] no, f is continuous on [−1, 1] but not differentiable on (−1, 1). no, f is not continuous on [−1, 1]. yes, f is continuous on [−1, 1] and differentiable on (−1, 1) since polynomials are continuous and differentiable on . there is not enough information to verify if this function satisfies the mean value theorem. yes, it does not matter if f is continuous or differentiable; every function satisfies the mean value theorem.

1) you deposit $2,500 in an account that earns 4% simple interest. how much do you earn in eight years?