BRAINLIEST FOR CORRECT ANSWERRR

Mathematics

2 answers:

Rama09 [41]4 years ago

4 0

Answer:

(14, 4); The vertex represents the maximum profit.

Step-by-step explanation:

I believe this is the answer, I'm taking the test right now.

ra1l [238]4 years ago

3 0

Answer:

Part A:

The vertex : x = - b / 2 a = - 28 : ( - 2 ) = 14

y = f ( 14 ) = - 14² + 28 · 14 - 192 = 196 + 392 - 192 = 4

The vertex is ( 14, 4 ). It means that the maximum hourly profit is $4, and that the shop should sell 14 sodas to reach the maximum.

Part B :

We will solve the quadratic equation:

x 1/2 = ( - 28 +/- sqrt ( 784 - 768 ) ) / ( - 2 )

x 1 = 12, x 2 = 16.

It means that if the shop must sell more than 12 and less then 16 sodas if they want to make a profit ( 13, 14, or 15 ). If they sell 12, or 16 they will brake even.

I think

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Troyanec [42]

Answer:

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Step-by-step explanation:

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3 years ago

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andreyandreev [35.5K]

Answer:

B. z Subscript alpha divided by 2 zα/2 = 1.96.

Step-by-step explanation:

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