2 years ago

Look at the following expression:

Mathematics

1 answer:

user100 [1]2 years ago

5 0

Answer: The last option, Stacy is incorrect because she should multiply 2 and 2 first and then subtract 4 from 12.

Step-by-step explanation:

We must follow the Order of Operations, also known as PEMDAS. See attached. Multiplication comes before subtraction, but Stacy subtracted 2 from 12 when she should have multiplied 2 by 2. This means the answer to your question is;

Stacy is incorrect because she should multiply 2 and 2 first and then subtract 4 from 12.

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Answer:

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Step-by-step explanation:

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weqwewe [10]

Answer:

The vertex of the parabola = (-7 , -4)

Step-by-step explanation:

Step(i):-

Given that the parabola y = 4 x² + 56 x +192

y = 4 (x² + 14 x + 48 )

y = 4 ( x² + 2 × 7 (x) + 49-1)

y = 4 ( x² + 2 × 7 (x) + 49)- 4

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Step(ii):-

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y = a ( x-h)² +k

The equation

y = 4 ( x + 7 )² - 4

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The vertex of the parabola (h,k) = (-7 , -4)

Final answer:-

The vertex of the parabola = (-7 , -4)

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