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Papessa [141]
3 years ago
15

What is the value of the discriminant of the quadratic equation −1 = 5x2 −2x, and what does its value mean about the number of r

eal 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.
Mathematics
2 answers:
stiv31 [10]3 years ago
9 0

Answer:

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

Step-by-step explanation:

\text{Given the quadratic equation }-1=5x^2-2x

we have to find the number of real number solutions the equation has.

The equation is

5x^2-2x+1=0

\text{Comparing above equation }ax^2+bx+c=0

a=5, b=-2, c=1

To find number of real solutions we have to find the discriminant

D=b^2-4ac

D=(-2)^2-4(5)(1)

D=4-20=-16

The value of discriminant is -16<0

Hence, the equation has no real roots.

Hence, option 1 is correct

exis [7]3 years ago
7 0

-The equation is actually

5x^2 -2x+1=0;

-The discriminant is b^2 -4ac=4-4•5•1=4-20=-16

-this means that the equation has no real number solutions

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azamat

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Step-by-step explanation:4 tablets twice a day is 8 (4*2=8). 3 tablets twice a day (3*2=6) for days 2-6 which is 5 days (6*5=30) is 30. The 7th day is 1 tablet twice a day (1*2=2). You’re multiplying the tablets Ben has to take times 2. Add them all together and you have 40.

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Estimate how much 10.25 and 30.5
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I don't really get what you are asking for. Can you clarify it?
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The base of a trapezoid are 24 feet and 16 feet. The height of the trapezoid is 12 feet. what is the area of the trapezoid?
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kherson [118]
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Similarly the probability that the third card is a queen is given by 2 / 50 = 1 / 25.

Therefore, the probability that <span>all three cards are queens is given by

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Part B:

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Part D:

<span>Given that the first two card are queens, then there are 2 queens remaining out of 50 cards remaining.

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Part E:

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