Find the confidence interval specified. Assume that the population is normally distributed. Thirty randomly selected students took the calculus final. If the sample mean was 95 and the standard deviation was 11.0, construct a 99% confidence interval for the mean score of all students.
A 91.59 to 98.41
B 89.49 to 100.51
C 90.06 to 99.94
D 89.47 to 100.53

Stefano accidentally dropped his sunglasses off the edge of a canyon as he was looking down. the height, h(t), in meters (as it relates to sea level), of the sunglasses after t seconds, is shown in the table. during its descent, the pair of sunglasses passed by a climber in the canyon 6 seconds after stefano dropped them. to the nearest meter, what is difference in elevation between stefano and the climber? 166 meters 176 meters 230 meters 240 meters its b.176 i took the test 166 is wrong and 176 is correct

List the sides of δrst in ascending order (shortest to longest) if: m∠r =x+28°, m∠s = 2x+16°, and m∠t = x+12

What is the value of the discriminant of the quadratic equation -2x = -8x + 8 and what does its value mean about thenumber of real number solutions the equation has?