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madreJ [45]
2 years ago
14

The steps in writing f(x)=18x+3x2 in vertex form are shown, but a value is missing in the last step. Write the function in stand

ard form. Factor a out of the first two terms. f(x)=3(x2+6x) Form a perfect square trinomial. (six-halves) squared f(x)=3(x2+6x+9)−3(9) Write the trinomial as a binomial squared. f(x)=3(x+___)2−27 What is the missing value in the last step? 3 6 9 18
Mathematics
1 answer:
Aleks04 [339]2 years ago
6 0

Answer: missing value is 3

Step-by-step explanation:To find the vertex form of parabola  given in almost standard form  were written following steps:

1.  Write the function in standard form:

2. Factor a out of the first two terms:

3. Form a perfect square trinomial:

4. Write the trinomial as a binomial squared:

The vertex is (-3,-27).

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Bryan purchases a new boat. The expression below represents the value of the boat after x years. 22000(0.88)^(X+2)
bogdanovich [222]
<h3>Answer:</h3>

<em>None of the above</em>. All the answers refer to <em>price</em>. The given equation refers to <em>value</em>. We imagine price may stay the same or actually increase year-to-year. The problem statement gives insufficient information to conclude anything about <em>price</em>.

Math is about attention to detail. The equation tells you ...

... The <em>value</em> of the boat decreases by 12% every year.

<h3>Step-by-step explanation:</h3>

The value of the boat is multiplied by 0.88 each time X increases by 1. That means the value is 88% of what it was the year before, <em>a decrease of 12%</em>.

8 0
4 years ago
Define mean. Then determine the mean of the following data set (22,18,38,6,24,18)
STALIN [3.7K]

Mean is the average number in the data set.

To get the average we first add all the numbers.

After we add all these numbers we then divide by the number of numbers in the data set.

So we do 22+18+38+6+24+18 which is equal to 126 there are six numbers so we divide 126 by 6. This gives us a mean of 21.

ANOTHER EXAMPLE:

Another example of this is the data set (4,65,7,34,5)

We first add all the numbers and get 115 then we divide by 5 and get 23 as the mean.



8 0
3 years ago
A candle burns down at the rate of 0.5 inches per hour. The original height of the candle was 9 inches.
Oksanka [162]
The ordered pairs would be,

(1, 8.5)
(2, 8)
(3, 7.5)
(4,7)
(5, 6.5)
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I got the ordered pairs from the question since it stated that the length of the candle decreased .5 every hour. I just corresponded the hour to the length of the candle.

I hope this helped!

Brainliest answer is always appreciated!
3 0
3 years ago
Read 2 more answers
Click on image and answer with explanation.
marshall27 [118]
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if you add all the cookies sold up, you get 200 cookies.
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3 0
3 years ago
What is the value of 3x - 8y when x =4 and y = -1/2? *
olya-2409 [2.1K]

Answer:

16

Step-by-step explanation:

7 0
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