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scoundrel [369]
3 years ago
12

6x2-30=0

Mathematics
2 answers:
katrin2010 [14]3 years ago
7 0

Step-by-step explanation:

6 {x}^{2}  - 30  = 0 \\  \therefore \: 6( {x}^{2}  - 5) = 0 \\ \therefore \: {x}^{2}  - 5 = 0 \\ \therefore \: {x}^{2}  =  5\\ \therefore \: x = \pm \:  \sqrt{5}\\  \\

agasfer [191]3 years ago
6 0

The quadratic form is ax^2 + bx + c

The given equation is 6x^2 -30 = 0

a = 6 because it is with x^2.

There is no x term in the equation so b is 0

c is the numerical term with no variable so c = -30

a = 6

b = 0

c =-30

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The cost c, for manufacturing x flags is given by c=x? -24x +39. Find the number of flags manufactured if the cost is $120.
IRINA_888 [86]

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Answer:

  27

Step-by-step explanation:

You want to find x when c = 120.

  120 = x^2 -24x +39

  x^2 -24x -81 = 0 . . . . . . subtract 120 to put in standard form

  (x -27)(x +3) = 0 . . . . .  .factor it

Solutions are ...

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The number of flags manufactured for a cost of $120 is 27 flags.

8 0
2 years ago
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olganol [36]

Answer: 5.6

===================================

Work Shown:

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8 0
3 years ago
Please help find mDF!!
Natalka [10]

9514 1404 393

Answer:

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ryzh [129]

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6 0
2 years ago
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Andrej [43]

Answer:

Step-by-step explanation:

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6 0
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