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Inessa05 [86]
3 years ago
15

Describe the nature of the roots for the equation 49x2– 28x +4 = 0

Mathematics
1 answer:
Zepler [3.9K]3 years ago
6 0

Answer:

The roots of the equation is real and repeated

Step-by-step explanation:

Here, we want to describe the nature of the roots of the given quadratic equation

To get the nature of the roots, we find the discriminant of the equation

The discriminant is;

b^2 - 4ac

In this case, b = -28 , a = 49 and c = 4

The discriminant is thus;

-28^2 - 4(49)(4)

= 784 - 784 = 0

Since the discriminant is zero, this means that the quadratic equation has real roots which are the same

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Plz help been stuck on this for awhile
Kazeer [188]

Answer:

<em>d</em> = \sqrt{74}  or 8.60

Step-by-step explanation:

(5, 8) (-2, 3)

Let 5 = x_{1}

     8 = y_{1}

     -2 = x_{2}

     3 = y_{2}

Plug in the values into the equation to get the distance:

<em>d = </em>\sqrt{(x_{2}-x_{1})^{2} + (y_{2}-y_{1})^{2}    }<em />

<em>d </em>= \sqrt{(-2-5)^{2} + (3-8)^{2} }

<em>d = </em>\sqrt{(-7)^{2} + (5)^{2}  }

<em>d</em> =  \sqrt{49 + 25}

<em>d = </em>\sqrt{74} or 8.60

7 0
3 years ago
How can I make an equation that equals 74 with using the digits/numbers 1 2 3 4 and 0 once and only once in the equation. Every
nexus9112 [7]

Answer:

A mathematical equation is an equation with zero or one variables (e.g., 9 = 6 + 3; 9 = x + 3), whereas an algebraic equation

Step-by-step explanation:

7 0
3 years ago
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What transformation is used on Data Set 1 to produce Data Set 2?
stepan [7]

Answer:

option à is correct

Step-by-step explanation:

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7 0
3 years ago
It rained 40 percent of the time at the zoo what fraction represent the amount of time it rained ?
algol [13]
It rained 1/25 of the time at the zoo
3 0
3 years ago
(4x+8)+(2x+20)=90 help me solve this and draw a diagram
Lemur [1.5K]

Answer:

x = 31/3

Step-by-step explanation:

4x+8+2x+20=90

4x+2x+8+20=90

4x+2x+8+20=90

6x+28=90

6x+28-28=90-28

6x=62

x = 31/3

5 0
3 years ago
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