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Alekssandra [29.7K]
1 year ago
6

What is the x-coordinate of the vertex of the parabola whose equation is y = 3x² + 9x?

Mathematics
1 answer:
saveliy_v [14]1 year ago
3 0

Answer: -3/2

Step-by-step explanation:

The axis of symmetry, and thus the x-coordinate of the vertex, is given by x=-\frac{b}{2a}

So, the answer is x=-\frac{9}{2(3)}=\boxed{-\frac{3}{2}}

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What is the slope of this line
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4

Step-by-step explanation:

rise/run = slope

As it goes to the left or adds by one, it goes up by 4

4/1

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3 years ago
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I’ll give 50 points if you can help
lbvjy [14]

Answer:

Simplifying

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Combine like terms: 5x + x = 6x

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Divide each side by '6'.

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2 years ago
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nirvana33 [79]

Answer:

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6 0
3 years ago
It is now twenty-five to four. What time will it be in one hour and forty-six minutes?
Dafna1 [17]

Answer:

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Step-by-step explanation:

We know that currently (in the problem) it is 25 min before 4, or 3:35. When we add an hour to that (first part of the problem), we get 4:35. The way l like to continue from here is to take the second part (the 46 min) and just use part of it to round the hour off, and then add the other part to it.

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