What is the value of the discriminant of the quadratic equation −1 = 5x2 −2x, and what does its value mean about the number of real number solutions the equation has?The discriminant is equal to −16, which means the equation has no real number solutions.
The discriminant is equal to −16, which means the equation has two real number solutions.
The discriminant is equal to 24, which means the equation has no real number solutions.
The discriminant is equal to 24, which means the equation has two real number solutions.

Answers

Answer 1
Answer: For the equation:
-1=5 x^2 - 2 x
5 x^2 - 2 x + 1 = 0,           then we substitute: a=5,  b=-2,  c =1
to discriminant formula: D= b^2 - 4 a c = (-2)^2 - 4 * 5 * 1 = 4 - 20 = - 16
Answer:
The discriminant is equal to -16 which means the equation has no real number solutions. 
Answer 2
Answer:

The correct option regarding the discriminant of the quadratic equation is given by:

The discriminant is equal to −16, which means the equation has no real number solutions.

What is the discriminant of a quadratic equation and how does it influence the solutions?

A quadratic equation is modeled by:

y = ax^2 + bx + c

The discriminant is:

\Delta = b^2 - 4ac

The solutions are as follows:

  • If \mathbf{\Delta > 0}, and it is a perfect square, it has 2 rational solutions.
  • If \mathbf{\Delta > 0}, and it is not a perfect square, it has 2 irrational solutions.
  • If \mathbf{\Delta = 0}, it has 1 rational solutions.
  • If \mathbf{\Delta < 0}, it has 2 complex solutions.

In this problem, we have that:

5x² - 2x = -1

5x² - 2x + 1 = 0

Hence the coefficients are a = 5, b = -2 and c = 1, while the discriminant is given by:

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

No real solutions, hence the first option is correct.

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

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Amy wants to buy a digital camera that sells for $199.99 if he uses his discount car he will save 18% . About how much will he save using the discount card?

Answers

Answer:

36.00

Step-by-step explanation:

199.99 - 18%( 36.00)=  163.99

What is x over 6 equals 7/2

Answers

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Greg ran 3 times as far as jed.rj ran 0.1times as far as Greg. If jed ran25 yards, how far did Greg and rj run

Answers

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K^5/6
Verbal expression

Answers

Answer:

The quotient of a number to the fifth power and six.

Step-by-step explanation:

Step 1: Convert k⁵ into words

k⁵ = a number to the fifth power

Step 2: Convert / into words

/ = quotient

Step 3: Convert 6 into words

6 = six

Step 4: Combine

The quotient of a number to the fifth power and six.

!!PLEASE HELP!! WILL MARK BRAINIEST!!!Find the product. write your answer in exponential form 4^7 x 4^-6

Answers

Answer:

4

Step-by-step explanation:

add the exponents

(7+(-6)

=7-6

=1

and let the same base =4^1 =4

Answer:

4

Step-by-step explanation:

What is the equation of the vertical line through (− 5 − 2) left parenthesis minus 5 comma minus 2 right parenthesis?

Answers

Answer:

5,2

Step-by-step explanation: