Ineed about the how to align decimal points in a decimal addition problem, annex zeros to write that all addends have the same number of decimal places.

What is the missing constant term in the perfect square that starts with x^2 -20x

Agraph of a trapezoid can have diagonals with slopes that are negative reciprocals and two pairs of adjacent sides that are congruent, true or false, and why

The difference between two numbers is one. three times the larger number minus two times the smaller number is 9. what are the two numbers