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inn [45]
3 years ago
12

What is the x-coordinate of the vertex of the parabola whose equation is y = 3x^2 + 12x + 5?

Mathematics
2 answers:
Genrish500 [490]3 years ago
8 0

Answer:

(-2,-7)

Step-by-step explanation:

melamori03 [73]3 years ago
7 0

Answer:

x= -2

Step-by-step explanation:

-b/2a = x

-(12)/2(2) = x

-12/6 = x

-2 = x

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Identify the horizontal asymptote of f(x)=x^2+6x-9 over x-2
lora16 [44]
\bf \cfrac{x^2+6x-9}{x-2}\qquad 
\begin{cases}
x^2\impliedby \textit{has a degree of 2}\\
x^1\impliedby \textit{has a degree of 1}
\end{cases}

if the degree of the expression of the numerator is greater than that of the denominator, the rational expression has no horizontal asymptote.
7 0
3 years ago
Multiply (2n + 2)(2n – 2) A. 4n 2 – 4 B. 4n 2 – 4n – 4 C. 4n 2 + 2n – 4 D. 4n 2 + 4n – 4
sattari [20]
This system can be a bit tricky unless you write it out:
(2n + 2)(2n - 2) ~ First you have to take one variable and multiply it to each of the other two variables, like:
2n * 2n ~ And:
2n * -2 ~ This gives you:
4n^2 - 4n
Now we do this with the other:
2 * 2n
2 * -2
4n - 4
Now we combine them both while adding like terms:
4n^2 - 4
Therefore your answer is: A. 4n^2 - 4
(This is due to how when having the positive 4n subtracted by the negative it cancels it out. Leaving us with the remaining two terms left.)

I hope this helps, have a great rest of your day! ^ ^
~Ghostgate
7 0
2 years ago
2. Which is the BEST definition of a line's x-intercept?
asambeis [7]

Answer:

Step-by-step explanation:

balls in yo jaws

5 0
3 years ago
What is the perimeter of the rectangle?
Dennis_Churaev [7]

Answer: 50

Step-by-step explanation: all you have to do to find the perimeter is add all of the sides. I got 50 by adding these numbers.

6 0
3 years ago
Read 2 more answers
Only number 3 not number 4
Nezavi [6.7K]

Answer:

<h2>Yes</h2>

Step-by-step explanation:

He did set a record because 7/20 = 0.35. 11.35 < 11.4 seconds.

<em>PLEASE MARK BRAINLEST</em>

3 0
2 years ago
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