jamiebrain
jamiebrain jamiebrain
  • 01-12-2020
  • Mathematics
contestada

what value of b makes the trinomial below a perfect square?
X^2-bx+100

a- 10
b-20
c-5
d-50

Respuesta :

kmcneely
kmcneely kmcneely
  • 01-12-2020

Answer:

Step-by-step explanation:

1. Perfect square trinomials, are 2nd degree polynomials, of the form           so that , which can be written as perfect squares.

2. For example

3. Thus  are perfect square trinomials.

4.

5. In the first case -b=20, so b=-20. In the second case, -b=-20, so b=20.

6. b∈{-20, 20}

Answer Link
kyrah5256
kyrah5256 kyrah5256
  • 01-12-2020

Answer:

b) 20

Step-by-step explanation:

x^2-20x+100 If you factor it, it would be (x-10)^2

Answer Link

Otras preguntas

Nitrogen-fixing bacteria provide _____, which plants can absorb.
A schedule of reinforcement in which reinforcement occurs after a fluctuating number of behaviors is called a(n)
How would the removal of the cell membrane affect the cell answer?
Switzerland has been neutral since _____. A) the defeat of Napoleon B) the Swiss Confederation was formed C) the end of World War I D) the collapse of the
How did trade and finance change in the period from 1000 to 1500
Based on the measures shown, could the figure be a parallelogram? Yes, one pair of opposite sides could measure 10 in., and the other pair could measure 13 in.
who can help me with math and english anybody that will stay and help
The religious beliefs of the early bantu and shona both involved the practice of animism. christianity. islam. polytheism.
Kevin's bill at a restaurant was $26.51. He left a 15% tip.about how much tip did keven leave
38 and 39 please I need help quick