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soldier1979 [14.2K]
11 months ago
9

If one wanted to solve the equation below using the quadratic formula, what would be the b value used to substitute into the qua

dratic equation.
3x 2 − 2 = - 5x
Mathematics
1 answer:
OLga [1]11 months ago
4 0

Answer:

b = 5

Step-by-step explanation:

All quadratic equations are formed in the format of a^{2} + bx + c = 0

Using this formula, we can re-arrange the equation to fit the given format.

3x^{2} - 2 = -5x
3x^{2} + 5x - 2 = 0

5 is plugged in for "b" in this equation, therefore b = 5.

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NARA [144]
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1. 7 × 7 = 49
2. 7 × 3 × 3 = 63
3. 7 × 3 × 4 = 84
4. 7 + 3 + 4 = 14

Hope that helps! Feel free to ask for a more explanation, if needed.
8 0
3 years ago
find the perimeter and area of the polygon with the given vertices. P(-3,4), Q(1,4), R(-3,-2), S(3,-2)
Elza [17]

Answer:

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5 0
3 years ago
A= LW For W<br><br> HELP ME!?!
madam [21]
W=A\L

Divide L from both sides

The L in the right cancels out
8 0
3 years ago
What is the gcf of 187 and 578
Finger [1]
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4 0
3 years ago
Which describes how triangle FGH could be transformed to triangle F prime G prime H prime in two steps? On a coordinate plane, t
charle [14.2K]

Answer:

  • <u><em>A dilation by a scale factor of 4 and then a reflection across the x-axis </em></u>

Explanation:

<u>1. Vertices of triangle FGH:</u>

  • F: (-2,1)
  • G: (-3,3)
  • H: (0,1)

<u>2. Vertices of triangle F'G'H':</u>

  • F': (-8,-4)
  • G': (-12,-12)
  • H': (0, -4)

<u>3. Solution:</u>

Look at the coordinates of the point H and H': to transform (0,1) to (0,-4) you can muliply each coordinate by 4 and then change the y-coordinate from 4 to -4. That is<em> a dilation by a scale factor of 4 and a reflection across the x-axis.</em> This is the proof:

  • Rule for a dilation by a scale factor of 4: (x,y) → 4(x,y)

       (0,1) → 4(0,1) = (0,4)

  • Rule for a reflection across the x-axis:{ (x,y) → (x, -y)

        (0,4) → (0,-4)

Verfiy the transformations of the other vertices with the same rule:

  • Dilation by a scale factor of 4: multiply each coordinate by 4

       4(-2,1) → (-8,4)

       4(-3,3) → (-12,12)

  • Relfection across the x-axis: keep the x-coordinate and negate the y-coordinate

        (-8,4) → (-8,-4) ⇒ F'

        (-12,12) → (-12,-12) ⇒ G'

Therefore, the three points follow the rules for <em>a dilation by a scale factor of 4 and then a reflection across the x-axis.</em>

4 0
2 years ago
Read 2 more answers
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