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Fynjy0 [20]
3 years ago
7

uincy uses the quadratic formula to solve for the values of x in a quadratic equation. He finds the solution, in simplest radica

l form, to be x = . Which best describes how many real number solutions the equation has?
Mathematics
2 answers:
omeli [17]3 years ago
4 0

Answer:

2 solutions

Step-by-step explanation:

A quadratic equation has the formula:

ax^{2} + bx +c = 0

The solution of the equation is given as:

x = \frac{-b+\sqrt{b^{2}-4ac } }{2a}

The expression: b^{2}-4ac is known as the discriminant given by the symbol D.

Thus, the discriminant D, is given as D = b² - 4ac

There are several conditions to the solution.

If D < 0 the roots are imaginary. They are not real.  

If D = 0, the solution has one real root

If D > 0, the solution as two distinct real roots (negative or positive)

A quadratic equation has only two real roots or solutions.

Verdich [7]3 years ago
3 0

Answer: according to spark notes: There can be 0, 1, or 2 solutions to a quadratic equation, depending on whether the expression inside the square root sign, (b2 - 4ac), is positive, negative, or zero. This expression has a special name: the discriminant.

In this case it is 0, not 2, which was my first and wrong answer





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3 years ago
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Answer:

A. 42

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Step-by-step explanation:

A. 30 - (2)(-6)= 42

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Anettt [7]

Answer:

\tan \dfrac{\theta}2 = \dfrac{1}2

Step by step Explanation:

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         =\dfrac{\sin \theta}{1+ \cos \theta}~~~~~~~~~~~~;[2 \sin x \cos x = \sin 2x ~ \text{and}~ 2\cos^2 x =1+\cos 2x]\\\\\\=\dfrac{\tfrac{12}{15}}{1+ \tfrac{9}{15}}\\\\\\=\dfrac{\tfrac{12}{15}}{\tfrac{24}{15}}\\\\\\=\dfrac{12}{15}\times \dfrac{15}{24}\\\\\\=\dfrac{12}{24}\\\\\\=\dfrac{1}2

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2 years ago
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Step-by-step explanation:

See attached graph.

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x^2 = 25 + 144

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5 0
3 years ago
MARKING BRANLY You want to plant a flower garden in your yard so that you can make a beautiful bouquet to put on the alter at ch
BabaBlast [244]

Answer:

1. 3 packs of daffodils and 4 packs of tulips

2. then you would have 24 of each

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9. 9 tulips

10. 12 daffodils and 15 tulips

theres 2 left. ill let someone else do it

Step-by-step explanation:

3.   4.50*4=18            5.75*3=17.25

18+17.25 -> 35.25*.065=2.29 rounded

4. 35.25+2.29=37.54

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6. 37.54-34.61=2.93

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8. 8+4=12

9. 6+3=9

10. 24-12=12           24-9=15

6 0
3 years ago
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