The row-echelon form of the augmented matrix of a system of equations is given. Find the solution of the system.
1
0
4
-1
0
1
-1
3
0
0
1:1
a = -6
C. X=-5
y=4
2= 1
2= 1
b. x = 5
y = 4
z = 1
d. X=6
y=4
2-1

Choose the triangle with x equal to 17.

In the diagram below what is the approximate length of the minor arc ab

The length of time it takes to find a parking space at 9 a.m. follows a normal distribution with a mean of 5 minutes and a standard deviation of 2 minutes. find the probability that it takes at least 8 minutes to find a parking space. (round your answer to four decimal places.)