D=√(0.9²+2.5²)=2.65
The distance between two points is 2.65
The correct answer for part A is 5x² +7x -4. 5x³ -x² -8x -7 is the right answer for part B. Polynomials are always closed if under addition or subtraction. The answers of both parts A and B are polynomials. hope that helps let me know if it does
A half a marathons answer is 69,217.52 feet
Answer: <span>unsubstantiated.
This is, the statement </span><span>"Some of Tucson's residents are blue eyed children" cannot be inferred from the two original statements.
Because the subset of </span><span>"Tucson's residents that have blue eyes" and the subset of "Tucson's residents that are children" might or might not have common elements.</span>
=[5x-2]+[2x+1]
=5x-2+2x+1
=5x+2x-2+1
=7x-1
