In triangle RST, s = 7.3 inches, t = 3.1 inches and angle R=138º. Find the area of triangle RST, to the nearest 10th of a square inch.

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.

How many solutions does the nonlinear system of equations graphed below have? a. one b. zero c. four d. two

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle