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rewona [7]
3 years ago
8

Find the vertex: y= -4x^2-8x-7

Mathematics
1 answer:
Anuta_ua [19.1K]3 years ago
7 0
The vertex occurs a the point (4,-9) 
The easiest way to do this is to draw the graph, or create a table of test values. When you do this, you will see as you increase the value of X, the value of Y continue to shrink until u hit X=4. The graph starts to increase in. So you know that is the vertex. In general, all functions of the form ax^2 +bx + c will have only one vertex. So you can apply this method. 
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What describes a triangle if given segments are 3, 5 and 3
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Step-by-step explanation:

3 0
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Read 2 more answers
Find the volume of the cylinder with a diameter of 12 inches and a height of 10
kati45 [8]

Answer:

360 pi in ^3

Step-by-step explanation:

The volume of a cylinder is given by

V = pi r^2 h

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r = d/2 = 12/2 = 6

V = pi (6)^2 * 10

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V = 360 pi in ^3

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V =1130.4 in ^3

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V =1130.973355  in ^3

6 0
3 years ago
3 = –(–y + 6)<br> a. –9<br> b. –3<br> c. 3<br> d. 9
Vlad1618 [11]
3 = -(-y + 6)

First, simplify brackets. / Your problem should look like: 3 = y - 6
Second, add 6 to both sides. / Your problem should look like: 3 + 6 = y
Third, simplify 3 + 6 to 9. / Your problem should look like: 9 = y
Fourth, switch sides. / Your problem should look like: y = 9

The answer is D) 9.

7 0
4 years ago
5000 rounded to the nearest 10 thousand
Serga [27]
It only thousand you can't rounded to ten thousand
6 0
3 years ago
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