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Viefleur [7K]
2 years ago
9

A theater sells adult tickets for $8.00 and Children's tickets for 5.50. Sally bought some of each kind (not the same number) an

d paid a total of $78.50. Which equation represents this situation ?
Mathematics
1 answer:
sdas [7]2 years ago
8 0
8x +(5.5)y=78.50 is the equation.
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Step-by-step explanation:

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The point,(-2,3) is a solution to the following system. y&gt;-2x-2 and y&lt; 3<br>true or false​
bija089 [108]

Answer:

false

Step-by-step explanation:

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3 years ago
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Help plz!!!
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Answer with explanation:

→→→Function 1

f(x)= - x²+ 8 x -15

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Dividing both sides by , 2, we get

x=4

Double differentiating the function

f"(x)= -2, which is negative.

Showing that function attains maximum at ,x=4.

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           = -16 +32 -15

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→→→Function 2:

f(x) = −x² + 2 x − 3

Differentiating once , to obtain Maximum or minimum of the function

f'(x)= -2 x +2

Put,f'(x)=0

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Dividing both sides by , 2, we get

x=1

Double differentiating the function,gives

f"(x)= -2 ,which is negative.

Showing that function attains maximum at ,x=1.

f(1)= -1²+2 ×1 -3

   = -1 +2 -3

  = -4 +2

 = -2

⇒⇒⇒Function 1  has the larger maximum.

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Anastasy [175]
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pashok25 [27]

Answer:

147°

Step-by-step explanation:

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x=  147° (sum of the interior angles of a heptagon=900°)

4 0
3 years ago
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