Determine the dimensions of Nul A, Col A, and Row A for the matrices shown in Exercises 11-16. 1 -6 9 0 -27 1 -4 5 1. А 3D 5 1 1. 0 0 0 0 0 0 3 -4 2 -1 1 -3 7 12. A = 1 4 -3 1. 13. А — 9. 5 01 -4 3 4 14. A = 10 1. 16. А 3D | 0 1 -1 4 15. A = 4 7 7

Akira is running around a circular track. Akira runs counterclockwise. From where he starts, it takes him 22 seconds to reach the easternmost point of the track. It takes him 95 seconds to run one complete lap.Bob starts running at the same time as Akira. Bob starts from the northernmost point and runs clockwise. Bob and Akira pass each other for the first time after 26 seconds. How long does Bob take to run one lap of the track? The answer to this question should be the amount of time in seconds rounded to four decimal places that it takes for Bob to run a complete lap around the circular track.

please help step by step

Please recheck and show in clear and complete step-by-step scanned solutions

Write the complete solution to the given problems. Use one variable only. Karl is 9 years younger than Minette. In seven years, his age will be two years more than one-half the age of Minette. What are their present ages?