Answer:
Remember that a perfect square trinomial can be factored into the form (a+b)^2
or (a-b)^2
Examples:
(x+2)(x+2) is a perfect sq trinomial --> x^2+4x+4
(x-3)(x-3) is a perfect sq trinomial --> x^2-6x+9
(x+2)(x-3) is not a perfect square trinomial because its not in the form (a+b)^2 or (a-b)^2
Now to answer your question,
for the first one, x^2-16x-64, you cannot factor it so it is not a perfect square trinomial
for the second one, 4x^2 + 12x + 9, you can factor that into (2x+3)(2x+3) = (2x+3)^2 so this is a perfect square trinomial
for the third one, x^2+20x+100 can be factored into (x+10)(x+10) so this is also a perfect square trinomial
for the fourth one, x^2+4x+16 cannot be factored so this is not a perfect square trinomial
Therefore, your answer is choices 2 and 3
Read more on Brainly.com - brainly.com/question/10522355#readmore
Step-by-step explanation:
Find the area of the rectangle that makes the master bedroom , bath and closet:
16 x 17 = 272 sq.ft
Subtract the area of the bathroom and hallway:
Bathroom= 10 x 5 = 50 sq. Ft.
Hallway: 7 x 4 = 28 sq.ft.
= 50 + 28 = 78 sq ft.
Area of bedroom and closet = 272 - 78 = 194 sq. Ft.
Now multiply area by price of carpet:
194 x 1.34 = $259.96
Answer:
X= -5
Step-by-step explanation:
Good luck!
Answer:
The correct answer would be "A"
Step-by-step explanation:
You would take the total cost and divide it by however many ounces are there. In this case, take 9.72 and divide by 54. There you get 0.18 cents per ounce. You can go back and check it, so multiply 54 by 0.18 and you get 9.72.
Answer:
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