Solve system of differential equations: { dx/dt= -x-5y
dy/dt= x+y

Scale factor of 2 is used to enlarge a figure as shown below the area of is 18 in.²

What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.

Evaluate the expression for the given value of the variable. ∣-4b-8∣+∣-1-b^2 ∣+2b^3 ; b=-2