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musickatia [10]
2 years ago
5

Maths- please help me with this Q

Mathematics
2 answers:
Reika [66]2 years ago
5 0

Step-by-step explanation:

please mark me as brainlest

rjkz [21]2 years ago
5 0

Answer:

See below ↓

Step-by-step explanation:

<u>Missing values (a)</u>

  • <u />\left[\begin{array}{ccc}-1&1\\?&?\end{array}\right]
  • Substituting x = 1 and x = -1 respectively in the equation y = x² - 4x
  • \left[\begin{array}{ccc}-1&1\\5&-3\end{array}\right]

<u>Curve which matches the equation</u>

  • On solving y = x² - 4x = x(x - 4) ⇒ x = 0, 4
  • It intersects the x axis at 0 and 4
  • The blue curve is the right one
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How to solve for g 10g^2+33g=9-2g^2
11Alexandr11 [23.1K]
Given:  <span>10g^2+33g=9-2g^2

Group the q^2 terms first, then the q terms, and finally the constants:

12g^2 + 33q - 9 = 0.  Make sure you agree with this, or otherwise fix it.

Tools for solving quadratic equations include the following and more:

graphing
quadratic formula
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I've graphed this simplified quadratic on my TI-83 calculator and see that -3 seems to be a root.  Let's check it!
      ________________
-3  /   12    33    -9
                 -36    9
     ---------------------
        12      -3      0           Since the remainder is zero, -3 is a root and (x+3) is                                          a factor.  The other factors are 3 and (4x -1)


Then 3(4g-1)(g+3) = 0, with the result that g = 1/4 and g = -3.

Please check these roots by subst. into the original equation.</span>
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4 years ago
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konstantin123 [22]

Step-by-step explanation:

the perimeter =

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The data for three different relay race runners is represented below. Use the representations of each runner to determine which
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velikii [3]

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Step-by-step explanation:

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12,11,13,12,15,16, and 14 hours will then be: 11, 12, 12, 13, 14, 15 and 16.

The median will be gotten using the formula: = (n + 1) / 2

Since there are 7 numbers this will be:

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= (7 + 1) / 2

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8 0
3 years ago
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rodikova [14]

Answer:

C. & D

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