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ollegr [7]
3 years ago
12

Expressions equivalent to 81^x

Mathematics
1 answer:
soldi70 [24.7K]3 years ago
7 0
There’s A. (9•9)^x
B. 9•9^2x
C. 9^x•9^x
D. 9^2•9^x
E. 9•9^x
F. 9^2x
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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
2 years ago
What is the name of the relationship when the function used to fit the data is
g100num [7]

Answer

LINEAR REGRESSION

Step-by-step explanation:

7 0
4 years ago
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Which of the following sentences describes the math function below weight of bowling ball (diameter) = 8.5 pounds
zepelin [54]
<span>D the weight of a bowling ball, which depends on the diameter of the ball, is 8.5 pounds.</span>
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3 years ago
Simplify:<br>(3·5)^2 -- 5 · (3)^2
MAXImum [283]

Answer:

0.216

Step-by-step explanation:

3/5^3 = 27

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= 0.216

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Step-by-step explanation:

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