Is it possible to solve the system {3x-2y=10][ x+2y=6} by using substitution? if so, explain how. which method substitution or elimination, is more efficient? why?

Find the value of x for which abcd must be a parallelogram -9-6x x-30

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2