Answer:
the first
Step-by-step explanation:
the first and the second set both multiply out correctly to the original expression, but -2x² is of greater dimension than -2x.
Yes she's correct , because 7•3x= 21x and 7•8xy= 56xy
I am going to assume D is the correct answer, hope I'm right!
Convention in algebra is that we use letters such as a, b, c, etc., for parameters and letters such as x, y z, and so on, for variables.
Thus the parameters here are a, b and k. k is the constant of proportionality.
.075 will be written as 75/1,000. The fraction can then be simplified to the fraction 3/40.