Looking for the sum and the difference for each B.) and C.)
For Tran.

Step-by-step explanation:

b) sum: (614 m + 304 m) +- 1.0 m

= 918 m +- 1.0 m

difference = (614 m - 304 m) +- 1.0 m

= 310 m +- 1.0 m

c) sum = (1400 kg + 900 kg) +- 100 kg

= 2300 kg +- 100 kg

difference = (1400 kg - 900 kg) +- 100 kg

= 500 kg +- 100 kg

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,

180-142=38 for the acute angle next to the entry

90+38=128

180-128=52

a=52

step-by-step explanation: