Answer:
Length of arc AB is 14. So, option E is correct
Step-by-step explanation:
Circumference of circle == 56 cm
We need to find length of arc AB?
Formula used will be l = rФ
We know, C = 2πr
56 = 2πr
56/2π = r
=> r = 8.91
Ф = 90° = 1.57 radians
So, l= rФ
l = 8.91 * 1.57
l = 13.98 = 14
So, Option E is correct
Devaughn is 53, and sydney is 42.
Answer:
The system has infinitely many solutions.
(x, 1 - x, -3)
Explanation:
Writing the matrix in the form of a system of linear equations gives

Note that the third row does not give us any information on the values of x, y, and z.
Solving the first equation for y gives

Hence, the solution to the system is

Since x can take any value ranging from -∞ to ∞, the system has infinitely many solutions.