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neonofarm [45]
3 years ago
14

Need help please please someone help me

Mathematics
2 answers:
Elanso [62]3 years ago
6 0
///The answer is -188///
Helen [10]3 years ago
3 0

Answer: 11.4


Step-by-step explanation:

Okay so we are going to use PEMDAS,

So first we multiply 2 times 5 first and get 10

(9-84 divided by 10 + 5+6)+2

(9-8.4+5+6)+2

( 9- 8.4 + 11) +2

( -1.6 + 11) +2

9.4 + 2

11.4



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7 0
3 years ago
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.
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  • 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

#SPJ1

3 0
1 year ago
What identity can be used to rewrite the expression 4x^2-9
tankabanditka [31]
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4 0
3 years ago
Read 2 more answers
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