Solve the quadratic equation x2 – 2x – 3 = 0 by completing the square
The quadratic equation x2 – 2x – 3 = 0 by completing the square is x = 1, −3
What is a quadratic equation?
Quadratum, the Latin word meaning square, is where the word “quadratic” originates. An algebraic equation of the second degree in x is a quadratic equation. The quadratic equation is written as ax2 + bx + c = 0, where x is the variable, a and b are the coefficients, and c is the constant term.
[tex]x^{2}[/tex]+2x−3 = 0
Add 3 to both sides of the equation.
[tex]x^{2}[/tex]+2x=3
To create a trinomial square on the left side of the equation, find a value that is equal to the square of half of b.
(b/2)2=[tex](1)^{2}[/tex]
Add the term to each side of the equation.
[tex]x^{2}[/tex]+2x+[tex](1)^{2}[/tex]=3+[tex](1)^{2}[/tex]
Simplify the equation.
x2+2x+1=4
Factor the perfect trinomial square into [tex](x+1)^{2}[/tex]
[tex](x+1)^{2}[/tex]=4
Solve the equation for x.
x =1, −3
Hence, x =1, −3 is the correct answer.
Learn more about on quadratic equation, here:
https://brainly.com/question/17177510
#SPJ1
What is the global goal zero hunger trying to do to improve the quality of life for others
Goal 2 seeks to end global hunger and malnutrition by 2030, double the agricultural productivity and incomes of small-scale food producers, and increase sustainable and resilient food production systems.
Does the capital city of your country stand in the same relation to the rest of the country as London does to Britain?
Answer:
Yes, I live in Australia, Sydney and we have like London has the Big Ben we have the Anzac Bridge and the Opera House (although they aren't as famous).
The stagnation stage of the life cycle of a resort is often characterized by the increasing cost of public services and the lowering of the ‘quality of life’ for many residents.
Describe this situation from the viewpoint of (i) older residents living in the community, many of whom are ‘incomers’ from industrial cities in other parts of the country and (ii) a well-educated middle class couple with young children, who are staying
in the resort for their main holiday.
The viewpoint of older residents would be one of not much complaint because they would be happy to get out of their industrial cities.
A well-educated middle-class couple with children would be very disappointed and angry with the resort's services because their education allows them to know they are getting less than they paid for.
What happens in the stagnation stage?In the stagnation stage, a resort will no longer be as good as it used to be and competition will threaten it. Public services will be more expensive as less people come and quality of life will decrease.
Older residents would still appreciate the resort because they are more used to hardship and will appreciate relaxing a little.
Well-educated middle-class people would be angry with the poor service because they know they should be offered better for the money they paid.
Find out more on the business cycle at https://brainly.com/question/12707151.
#SPJ1
what is geology ? give me answer
Answer:
The science that deals with the earth's physical structure and substance, its history, and the processes that act on it.
Answer:
geology is the study of mineral resources e.g rocks within and below the earth's crust.
ΔABC will undergo two transformations to give ΔA′B′C′. Which pair of transformations will give a different image of ΔABC if the order of the transformations is reversed?
Which step is not part of a normal convection cycle?
• A. Air flows from a high-pressure area to a low-pressure area.
• B. A low-pressure system forms due to unequal heating.
• C. Cooled air sinks toward the surface.
• D. Warmed air rises, creating a high-pressure system below.
The rising of warmed air by creating a high-pressure system below, is not a part of a normal convection cycle.
What is the significance of a convection cycle?
A continuous process of the rising of warmer areas of gases or liquids, and the sinking motion of the cooler ones is known as a convection cycle.
In a convection cycle, the warmed air cannot rise by creating a high pressure surface below and flowing away from the surface.
Hence, option D holds true regarding a convection cycle.
Learn more about a convection cycle here:
https://brainly.com/question/13186729
#SPJ1
Answer:
D. Warmed air rises, creating a high-pressure system below.
Explanation:
What is the largest city in America?
Answer:
The answer is
Explanation:
I dont know -.-
But i need poin ts and you need to help me that
Answer:
New York if your talking population
