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lara [203]
3 years ago
15

Can you please answer this question? Thank you

Mathematics
1 answer:
svetlana [45]3 years ago
5 0
<span>-0.99920681013 is the answer </span>
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Use the discriminant, b2 - 4ac, to determine which equation has complex solutions.
ruslelena [56]

Using the discriminant, the quadratic equation that has complex solutions is given by:

x² + 2x + 5 = 0.

<h3>What is the discriminant of a quadratic equation and how does it influence the solutions?</h3>

A quadratic equation is modeled by:

y = ax² + bx + c

The discriminant is:

\Delta = b^2 - 4ac

The solutions are as follows:

  • If \mathbf{\Delta > 0}, it has 2 real solutions.
  • If \mathbf{\Delta = 0}, it has 1 real solutions.
  • If \mathbf{\Delta < 0}, it has 2 complex solutions.

In this problem, we want a negative discriminant, hence the equation is:

x² + 2x + 5 = 0.

As the coefficients are a = 1, b = 2, c = 5, hence:

\Delta = 2^2 - 4(1)(5) = 4 - 20 = -16

More can be learned about the discriminant of quadratic functions at brainly.com/question/19776811

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3 0
1 year ago
Mallory makes $10 per hour babysitting and $8 per hour working at the local grocery store. Last week she babysat for 6 hours. He
Aneli [31]
10x6=60 so 180-60=120 and 120 divided by 8 is 15 so the answer is 15 hours
6 0
3 years ago
Read 2 more answers
Can anyone do it I'll give you brainiest
Temka [501]

Answer:

<h2>64°</h2><h2 />

Step-by-step explanation:

? + 86 + 90 + 84 + 36 = 360

? = 360 - 86 - 90 - 84 - 36

? = 64

therefore, the missing angle = 64°

6 0
2 years ago
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Help plssssssssss omgggg
Sphinxa [80]

Answer:

  5\dfrac{7}{8} c +7

Step-by-step explanation:

The like terms are the ones containing the variable 'c'. They are combined by adding their coefficients.

Working just with the coefficients of c, we have ...

  2\dfrac{3}{4} +3\dfrac{1}{8}=(2+3)+\left(\dfrac{6}{8}+\dfrac{1}{8}\right)=5\dfrac{7}{8}

Then the simplified expression is ...

  (2 3/4)c +(3 1/8)c +7

  = (5 7/8)c +7

3 0
3 years ago
What is the slope of the line shown?
mylen [45]

Answer:

3

Step-by-step explanation:

you go up 3 units and over to the left one unit

3/1 = 3

6 0
2 years ago
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