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Liono4ka [1.6K]
4 years ago
6

A concert is attended by 300 people. All of the attendees start exiting the concert hall as soon as the concert has ended. The f

unction represents the number of people still inside the concert hall minutes after the concert has ended. The number of people inside the concert hall is decreasing at a rate of 4 people per minute. Which of the following represents the function ?
Mathematics
1 answer:
wlad13 [49]4 years ago
7 0
Shimakie is right lol
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<img src="https://tex.z-dn.net/?f=x%20%20%5Cdiv%203x%20-%202%20%3D%201%20%5Cdiv%203x%20-%204" id="TexFormula1" title="x \div 3x
Maurinko [17]

Hello from MrBillDoesMath!

Answer:

x = 1/2 (1 +\- i sqrt(23))

Discussion:

x \3x - 2 =   (x/3)*x - 2   =  (x^2)/3 - 2     (*)

1 \3x - 4   =  (1/3)x - 4                               (**)

(*) = (**)   =>

(x^2)/3 -2 = (1/3)x - 4        => multiply both sides by 3

x^2 - 6 = x - 12                 => subtract x from both sides

x^2 -x -6 = -12                   => add 12 to both sides

x^2-x +6  = 0

Using the quadratic formula gives:

x = 1/2 (1 +\- i sqrt(23))

Thank you,

MrB

4 0
3 years ago
PLEASE HELP 2x^2-8x+6=0
aalyn [17]

Answer:

x = 4 or x = -1

Step-by-step explanation:

2x^2 - 8x + 6 =0

divide by 2 we get  : x^2 -4x +3 = 0

(x -4) (x+1)

x = 4 or x = -1

7 0
3 years ago
For the values a = 3.4 and b = 2.6, which are legs of a right triangle, find c, the hypotenuse, to the nearest tenth.
sammy [17]
C^2 = a^2 + b^2
c^2 = 3.4^2 + 2.6^2
c^2 = 11.56 + 6.76
c^2 = 18.32
c = 4.3

answer
c = 4.3
4 0
3 years ago
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udieigij2oi3iutieudiuei 8i3ufiyw9c 8xiepsogoorg3euuxcuowettic33u8yr80q9yigjnbghshsbfkdlgpjwfnsytanujdjjdjehddjeuxuejvupaworiy

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3 years ago
The graph of a certain quadratic function does not cross the x-axis. Which of the following are possible values for the discrimi
irinina [24]
The graph of a quadratic function does not cross the x-axis if the discriminant has negative value.
Answers:
C ) -25
D ) -7
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