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charle [14.2K]
2 years ago
15

Write y = 3x2-12x +11 in vertex form. please show work

Mathematics
2 answers:
MaRussiya [10]2 years ago
6 0

Answer:

y = 3 ( x − 2 ) 2 − 1

Step-by-step explanation:

To convert a quadratic from y = ax2 + bx + c form to vertex form, y = a(x - h)2+ k, you use the process of completing the square. Let's see an example. Convert y = 2x2 - 4x + 5 into vertex form, and state the vertex. Equation in y = ax2 + bx + c form.

Very glad I was able to assist you even though you're pretty rude.

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Studentka2010 [4]2 years ago
4 0
Ohhh ok so im actually not sure if I’m doing this right but if I remember correctly.. there has to be a squared binomial so heres my answer:

3(x-2)^2-1 and the vertex is (2,-1)

Now im not completely sure if I’m right but basically what I did was get a squared binomial and added and multiplied to it to make it equal to the previous trinomial.

Sorry if I’m wrong. Hope this helps some.
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How do you you divide 67by6
Law Incorporation [45]
You first set it up as long division. 
Second you would find out how many times 6 goes into 67, so count by 6's until you get close 67.
Third once you get that number you write it on top of the long division and then you would subtract whatever that number is below which is 66 because 6 * 11= 66.
So then you would subtract 67 minus 66 which would be 1. Then go from there and you'll get your answer.

Hope this helps!
6 0
3 years ago
The percent decrease of an item that dropped in price from $50 to $43 is _____.
Stels [109]
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4 0
3 years ago
How much is 1470p in dollars ?
AnnyKZ [126]

Answer:

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Step-by-step explanation:

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2 years ago
A random sample of 184 students at South High School were surveyed on whether they would prefer going to a movie or a concert. T
agasfer [191]

Answer:

42% of the students prefer a concert over a movie.  

A greater ratio of 11th graders prefer a concert to a movie.

The difference in the percent of students who prefer a movie over a concert is16%.  

Step-by-step explanation:

              10th   11th   12th   total

movie       .18    .16     .24    .58

concert     .15     .18     .09   .42

total           .33     .34    .33    1

The marginal relative frequency for 10th graders is 0.18.   This is an incomplete statement

The marginal frequency is a number not a percent

42% of the students prefer a concert over a movie.   42% preferred a convert to the 58% who preferred a movie.  True

A greater ratio of 11th graders prefer a concert to a movie. 18/100 concert to 16/100 for the movie for 11th graders

18:16  This is true

More 12th graders were surveyed than any other grade level.

There were more 11th graders surveyed (34%) to (33%) for 12 graders False

The difference in the percent of students who prefer a movie over a concert is16%.  True

4 0
3 years ago
Read 2 more answers
15% of £34 how much is 15% out of £34
Anastaziya [24]

Answer:

£5.10

Step-by-step explanation:

10% of £34 is £3.40

5% of £34 is £1.70

£3.40 + £1.70 = £5.10

6 0
2 years ago
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