Answer : A 

Take square root for each term and simplify it




so we will get


Answer: 81
To get this answer, you do two things
1) Take half of the x coefficient 18 to get 9
2) Square the result from the previous step to get 9^2 = 9*9 = 81
This value is added on to get x^2+18x+81 which factors to (x+9)^2 confirming we have a perfect square trinomial
Answer:
15.24 millimeters
Step-by-step explanation:
6 * 2.54 = 15.24 mm.
Answer:
56.
Step-by-step explanation:
46+10=56
V = (4/3)×3.14×(1.5^3)
V = 14.1 in^3