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antiseptic1488 [7]
3 years ago
14

If using the method of completing the square to solve the quadratic equation x^2-13x+14=0, which number would have to be added t

o "complete the square"?
Mathematics
1 answer:
nevsk [136]3 years ago
7 0

Answer:

169/4

Step-by-step explanation:

Take the coefficient of the x term.  Here it's -13.  Now halve that, obtaining -13/2.  Finally, square this result.  We get 169/4.  This is the desired number.

x^2 - 13x + 169/4 - 169/4 + 14 = 0

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Step-by-step explanation:

The domain of f(x) is all values of x for which f(x) is defined.

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3 years ago
This is a picture of a cube and the net for the cube.
Nataliya [291]

Answer:

1196 mm^2

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3 0
3 years ago
32,005,008 in expanded form​
Step2247 [10]

Answer:(3 x 10000000) + (2 x 1000000) + (0 x 100000) + (0 x 10000) + (5 x 1000) + (0 x 100) + (0 x 10) + (8 x 1)

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3 0
3 years ago
Read 2 more answers
Calculator
rodikova [14]

Solution:

<u>First, let's find the surface area of the triangular prism.</u>

  • 2(1/2 x 8 x 12) + 2(10 x 6) + (12 x 6) = Surface area of triangular prism
  • => (8 x 12) + 2(60) + (72) = Surface area of triangular prism
  • => (96) + 120 + 72 = Surface area of triangular prism
  • => 96 + 192 = Surface area of triangular prism
  • => 288 ft² = Surface area of triangular prism

<u>Now, let's find the surface area of the rectangular prism.</u>

  • 2(18 x 9) + 2(6 x 9) + 2(6 x 18)
  • => 2(162) + 2(54) + 2(108)
  • => 324 + 108 + 216
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<u>Now, add both the surface areas to find the surface area of the figure.</u>

  • 288 + 648 = Surface area of figure
  • => 936 ft² = Surface area of figure

The surface area of the figure is 936 ft².

7 0
2 years ago
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