Write the system first as a vector equation and then as a matrix equation. 5 x 1 plus x 2 minus 3 x 3 equals 7 2 x 2 plus 9 x 3 equals 0 Write the system as a vector equation. Select the correct choice below and, if necessary, fill in any answer boxes to complete your choic

Sherina wrote and solved the equation. x-56=230 x-56-56=230-56 x=174 what was sherina’s error? sherina’s work is correct. sherina only needed to subtract 56 from 230. sherina made a subtraction error when subtracting 56 from 230. sherina should have added 56 to both sides of the equation.

If the cost to mail a package is an initial $5 and $0.28 for every pound the total cost to mail a package was $11.27, how much did the package weigh?

(10. in the figure, a aabc is drawn tocircumscribe a circle of radius 3 cm ,such thatthe segments bd and dc are respectively oflength 6 cm and 9 cm. find the length ofsides ab and ac.