Use the linear combination method to solve the system of equations. explain each step of your solution.
2x-3y= 13
x+2y= -4

G(x) = 2 sin(2x - π) + 4. using complete sentences, explain how to find the minimum value for the function.

Which is the standard form for this number? (4 x 1 100 ) + (8 x 1 1,000 ) + ( 3 x 1 100,000 ) ? a) 0.004803 b) 0.04803 c) 0.0483 d) 0.483

7. the area of the playing surface at the olympic stadium in beijing isof a hectare. what area will it occupy on a plan drawn to a scaleof 1: 500?