A curve in the xy-plane is given by the parametric equations x(t) and y(t). The graph of x(t) is shown above on the left, and the graph of the derivative y′(t) is shown above on the right. Which of the following integral expressions gives the length of the portion of the curve described by the parametric equations for 1≤t≤3 ?

Gretchen is responsible for explaining her company's retirement benefits to new employees. she explains that the company matches up to 3% of employee contributions to the company 401(k) plan. after two years, these contributions become vested. gretchen says that the employees should invest in the company 401(k) when they start since it has all the same risks and benefits as investing in an ira. is gretchen's description accurate? select the best answer from the choices provided. a. yes; they both could lose money if investments perform poorly. b. yes; both could come up short if workers fail to invest enough. c. no; only iras rely on a worker's individual investment choices. d. no; workers would lose non-vested funds from 401(k) plans if they left the company.