Answer:
(½x+½y)²=6
Step-by-step explanation:
x^2 + y^2 = 14, xy=5
(A+B)^2=A^2 +2AB+B^2... (*)
(1/2x+1/2y)^2 =(*)
(1/2x)^2 +2(1/2x)(1/2y)+(1/2y)^2 =
1/4x^2 +1/2xy+1/4y^2=
1/4(x^2 +y^2) +1/2(xy)=
1/4*14+1/2*5=
14/4+5/2=
14/4+10/4=
24/4=6
20. it is in the tens place
Answer:
33/16 hope this helps
Step-by-step explanation:
Answer:
2 days
Step-by-step explanation:
because if he buys two each day then he will have four cards on the second day
Answer:
6x+42
Step-by-step explanation:
First, distribute the 8.
8x+24-2x+18.
Then, combine like terms.
6x+42