Explain why the system cannot be solved by matrix inverse methods. Discuss methods that could be used and then solve the system. x 1 minus 2 x 2 minus 2 x 3 equals negative 7 2 x 1 minus 7 x 2 plus 3 x 3 equals negative 16 x 1 minus 5 x 2 plus 5 x 3 equals negative 9

a

step-by-step explanation:

it is x=-4

step-by-step explanation:

if you're trying to figure out how much each ounce cost it would be 0.20

cents each ounce

answer: 75°

step-by-step explanation:

∠esk is the supplement of ∠edk, so is 100°. ∠esd = 1/2·arc ed, so is 25°.

since ∠esk = ∠esd + ∠dsk

you have 100° = 25° + ∠dsk . .

fill in known values 75° = ∠dsk . . . . .

subtract 25°

step-by-step explanation: