In the construction of a certain road, a viaduct (a type of bridge) must be built over a railroad track. The viaduct will be 31.5 feet higher than the road level. The rise in the road is to be uniform and is to start at
a distance of 618 feet from the base of the viaduct. To the nearest degree, what will be the angle of the
rise of the road?

1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.

What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4

Determine the domain and range of the given function. the domain is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}. the range is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}.