4x - 6y = 10 5x + 7y = -2 if you were going to solve this system by elimination by adding the two equations together, what would be a correct first step? a) multiply the first equation by 7 and the bottom by 6. b) multiply the first equation by 5 and the bottom by 4. c) multiply the first equation by -7 and the bottom by 6. d) multiply the first equation by 7 and the bottom by -6.

Plz need answer now will mark which situations represent linear functions? check all that apply. a)the temperature rises and falls over the course of a day. temperature is a function of time. b)a baseball is hit into the outfield. the height of the ball is a function of time. c)a car goes 55 mph on the highway. distance is a function of time. d)a child grew 2 inches this year and 1 inch last year. height is a function of time. e)a movie director makes 2 movies per year. the number of movies is a function of the years.

Whose conclusion is correct? choose all that apply. (two max) elijah emily edward esme

Δabc is dilated by a scale factor of 3 with the origin as the center of dilation to form δa′b′c′. the slope of is -1.2. the length of is p units, the length of is q units, and the length of is r units. the slope of is . the length of is units.