The regular price for the football helmet would be $179.29.
Tính bằng công thức 2pi/|b| => 2pi/|4|=>chu kì : pi/2
Answer:
Elimination
Step-by-step explanation:
A system of equations is 2 or more equations for which the same x,y solution exists. We can solve the system in three ways: elimination, substitution, or graphing. Elimination is the best method when we have standard form equations and x values with opposite coefficients. This is so because the x variable will eliminate easily and allow us to solve for y.