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PSYCHO15rus [73]
3 years ago
14

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

al form, to be x = StartFraction negative 3 plus or minus StartRoot negative 19 EndRoot Over 2 EndFraction.
Mathematics
2 answers:
matrenka [14]3 years ago
8 0

Answer:

zero, because the discriminant is negative

Step-by-step explanation:

The next question is missing : Which best describes how many real number solutions the equation has?

The quadratic equation gives:

x = \frac{-3 \pm \sqrt{-19}}{2}

The discriminant is equal to -19. A negative discriminant means the quadratic formula has zero real solution.

chubhunter [2.5K]3 years ago
8 0

Answer:

 The answer is zero because the discriminant is negative.

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What is the value of the expression<br> below when x<br> =<br> 6 and y<br> -4 ?
tester [92]

Answer:

-2

Step-by-step explanation:

Plug in the respected values for x and y.

Divide and get -2

8 0
2 years ago
At top speed jaguar can run 2.5 miles in 3 mins what is it’s speed in mph
Alekssandra [29.7K]

Answer:

50 mph

Step-by-step explanation:

<u>Speed of Jaguar given:</u>

  • 2.5 miles in 3 mins
  • Speed in mph = ?

<u>Solution:</u>

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8 0
3 years ago
-2.8f+0.4f-11-4=? <br><br><br><br> HELP
Alexxandr [17]
<h2>Answer: −2.4f − 15</h2><h2>_____________________________________</h2><h3>Honey, just simplify the expression to get your answer.</h3><h3>−2.4f − 15</h3><h2>_____________________________________</h2>

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6 0
3 years ago
Long division.... <br> (M^2-7m-11) ÷ (m-8)<br><br> We are so lost....
sergejj [24]

Well, (m^2-7m-11) ÷ (m-8) = m+1 with a remainder of -3

6 0
3 years ago
Which quadratic equation has solutions x=8 and x=−1?
andrezito [222]
There are two ways you can do this

Using the formula


{x}^{2}  - (sum \: of \: roots)x + poduct \: of \: roots = 0

{x}^{2}  - (8+-1)x +  - 1 \times 8 = 0


{x}^{2}  - 7x  - 8 = 0


Working backwards


x = 8 \: or \: x =  - 1
\Rightarrow x-8=0  \: or  \: x+1=0

\Rightarrow (x-8)(x + 1)=0
\Rightarrow  {x}^{2}   + x -8x - 8 = 0
\Rightarrow  {x}^{2}  - 7x - 8 = 0
7 0
3 years ago
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