1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
satela [25.4K]
3 years ago
14

Use the quadratic formula to solve the equation.-3x^2 - x - 3 = 0

Mathematics
1 answer:
vredina [299]3 years ago
8 0

Answer:  -1 ± <em>i</em>√35

                  ⁻⁻⁻⁻⁻⁻⁻⁻

                     6

Step-by-step explanation:

From the quadratic equation,

X =  -b ±√b² - 4ac

     ⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻

             2a

From the given equation, -3x² - x - 3 = 0

where a = -3, b = -1, c = -3

Now substitute for the values in the formula above

x = -(-1) ± √(-1)² - 4(-3)(-3)

      ⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻

                   2(-3)

x = 1 ± √ 1 - 36

     ⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻

           -6

x = 1 ±  √ -35

     ⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻

           -6

x = -1  ±  <em>i√35   this is because it has a negative root.</em>

<em>       ⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻</em>

<em>            6</em>

<em> The answer is b</em>

   

You might be interested in
AYUDAAAAAAAAAAAA Un numero es 40% mas que el otro número, si la suma de 2 números es 84 busca los 2 números.
lions [1.4K]

Answer:

Si el número es x, entonces 1.4x + x = 84,

Entonces 2.4x = 84 yx = 84 / 2.4 = 840/24 = 35.

El otro número es 84-35 = 49

Step-by-step explanation:

Espero que te ayudo

Dejame saber : )

7 0
3 years ago
Which expression is equivalent to (7x3)2(x3)?
astraxan [27]

Answer:

(21)+(6) is an equivalent expression

Step-by-step explanation:

(7x3)2(x3)

(21)+(6)

8 0
3 years ago
Help me solve this please
shutvik [7]

Answer:

D'G' = 52.5 units

Step-by-step explanation:

Since the dilatation is centred at the origin then multiply the original coordinates by the scale factor 3.5

D' = (1 × 3.5, 7 × 3.5 ) = (3.5, 24.5 )

G' = (- 8 × 3.5, - 5 × 3.5 ) = (- 28, - 17.5 )

Calculate D'G' using the distance formula

d = \sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2    }

with (x₁, y₁ ) = D' (3.5, 24.5) and (x₂, y₂ ) = G' (- 28, - 17.5)

D'G' = \sqrt{(-28-3.5)^2+(-17.5-24.5)^2}

       = \sqrt{(-31.5)^2+42^2}

       = \sqrt{992.25+1764}

        = \sqrt{2756.25}

         = 52.5 units

7 0
2 years ago
Solve for x and graph the solution on the number line
podryga [215]
14 because i did the math and i was right
7 0
2 years ago
Which of the following is equivalent??
Naddik [55]
The answer is b because it is equivalent.
6 0
3 years ago
Read 2 more answers
Other questions:
  • Simplify the rational expression 4x-8/4x+20
    8·1 answer
  • George wrote an integer. The opposite of George's integer is - 53. Which of these statements about George's integer must be true
    9·1 answer
  • HELP are the following figures similar?
    8·1 answer
  • Can you please help me.Have a good day :)
    7·2 answers
  • The equation of the linear regression line represents the relationship between the number of years since 2000, x, and the averag
    6·1 answer
  • Find the measure of each angle.
    15·1 answer
  • Help please! ill mark you brainliest!
    13·1 answer
  • PLEASE HELP- CORRECT ANSWER GETS BRAINLIEST AND 30+ POINTS
    14·1 answer
  • Which is the largest three-digit number of the form 9k + 1, where k is any positive integer?​
    8·1 answer
  • A skate park charges a $3.00 for admission and $2.50 an hour to rent ice skates. Create and solve an equation to show the cost t
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!