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2 years ago

What is the vertex form of: y = 3x^2 - 12x + 5

Mathematics

2 answers:

AVprozaik [17]2 years ago

8 0

Answer:

3(x-2)^2-7

Step-by-step explanation:

expanding gives you: 3(x^2-4x+4)-7=3x^2-12x+12-7=3x^2-12x7+5

Juli2301 [7.4K]2 years ago

7 0

Answer:The vertex form is -y=a(x-h)2+k

Step-by-step explanation:

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2) Evaluate the given numerical expression. A) 9 B) 12 C) 14 D) 21

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Answer:

$\boxed{\sf{14}}$

Step-by-step explanation:

$\boxed{\underline{\text{ORDER OF OPERATIONS:}}}$

Use the order of operations.

Note: PEMDAS or BODMAS stands for:

PEMDAS

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BODMAS

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First, do parentheses.

3+6*(5+4)÷3-7

(5+4)=9

$\Longrightarrow: \sf{3+6* 9\div 3-7}$

Do multiply and divide.

6*9=54

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Then, rewrite the problem down.

$\Longrightarrow: \sf{3+18-7}$

Add.

$\sf{3+18=21}$

$\sf{21-7=\boxed{\sf{14}}$

$\Longrightarrow: \boxed{\sf{14}}$

Therefore, the correct answer is "C. 14".

I hope this helps, let me know if you have any questions.

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