3 years ago

How do I find roots from a quadratic equation

1 answer:

6 0

Answer:The roots of any quadratic equation is given by: x = [-b +/- sqrt(-b^2 - 4ac)]/2a. Write down the quadratic in the form of ax^2 + bx + c = 0. If the equation is in the form y = ax^2 + bx +c, simply replace the y with 0. This is done because the roots of the equation are the values where the y axis is equal to 0.

Step-by-step explanation:

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Please help and also include an explanation so I know how you got the answer.

Nastasia [14]

Answer:

x = 15

Step-by-step explanation:

We know that 4x° + 8x° make a straight angle of 180°.

4x° + 8x° = 180°

12x° = 180°

12x = 180

x = 180/12 = 15

4 0

2 years ago

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What is the answer for this problem -8 - -2 = ?

VashaNatasha [74]

Answer:

if im not wrong im pretty sure its -6

explanation: -8 - -2 = -6

8 0

2 years ago

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Rzqust [24]

Answer:

Principal = Total ÷ (1 + Rate)^years

That formula is found here: http://www.1728.org/compint2.htm

Principal = 3.000 / (1.03) ^ 15

Principal = 3.000 / 1.5579674166

Principal = $1,925.59

Step-by-step explanation:

7 0

2 years ago

Fsctory can produce 12 mowers in 8. how many hours will it take to make20

lakkis [162]

It should take about 13.3 hours

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3 years ago

the length of a rectangular window is 5 feet more than its width, w. The area of the window is 36 square feet. Which equation co

Ksenya-84 [330]

Answer:

36 = (w+5)w = w^2 + 5w

Step-by-step explanation:

5 0

3 years ago