4 2 Find the inverse of the matrix
if it exists
23
- 2
T
7
10
84
6
b.
d.
does not exist
-1
Please select the best answer from the choices provided
Ο Α
OB
OC
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If 1 km = 0.621 miles, how many miles are in a centimeter

The edge of a cube was found to be 30 cm with a possible error in measurement of 0.4 cm. use differentials to estimate the maximum possible error, relative error, and percentage error in computing the volume of the cube and the surface area of the cube. (round your answers to four decimal places.) (a) the volume of the cube maximum possible error cm3 relative error percentage error % (b) the surface area of the cube maximum possible error cm2 relative error percentage error %

The sum of the speeds of two trains is 720.2 mph. if the speed of the first train is 7.8 mph faster than the second train, find the speeds of each.