Notice that both A and B are multiplied by (1/2).
Thus, the given expression can be re-written as [(1/2)(A+B)]^2.
Square the (1/2) and the (A+B) separately, and then multiply together the resulting squares:
(1/4)(A^2 + 2AB + B^2)
Answer:
x=y-48, y=x+48
Step-by-step explanation:
Answ
$11.00
Step-by-step explanation:
A quick way to do this would be as follows: 1.10 ( 0.50*$20), or $11.00.
0.50($20) gives us the sale price (at half off); that's half of $20, or $10.
The total due is then $10 (item cost) plus $1 (tax), or $11