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Troyanec [42]
3 years ago
6

Determine the direction that this parabola opens y=2x^2-4x-6 Down or up

Mathematics
1 answer:
dimaraw [331]3 years ago
6 0

Answer: The parabola opens upwards.  

Step-by-step explanation:

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Please i really need help <br> for both qeutions<br> 100 points
Luba_88 [7]

Answer:

7. a) slope = 5

7. b) slope = 1/2

8. slope = 1

Step-by-step explanation:

slope = rise/run

rise is the vertical change, run is the horizontal change

7. a)

Pick any two points on your line. (0,0) and (1,5) are easy to work with.

The vertical change between the two points is 5

The horizontal change between those points is 1

so slope = 5/1 = 5

7. b)

Again, you can use (0,0) as one of your points. The point (2,4) is good as the second.

slope = 4/2 = 1/2

8. We don't have a graph, but we are given two points to work with, (1,4) and (5,8). Use the formula given...

m = slope = (y2-y1) / (x2-x1)

= (8 - 4) / (5 - 1)

= 4/4

= 1

I hope that helped!

8 0
2 years ago
X+3=4x-6<br> What is the value of x?
UNO [17]

Answer:

3

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
PLEASE HELP IMMEDIATELY! HURRY!
Fynjy0 [20]

Answer:

5 * 5 * 5 * 5

Step-by-step explanation:

Use the rules of Indices.

5⁶⁻²

= 5⁴

8 0
3 years ago
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Quadrilateral JKLM is a rhombus. The diagonals intersect at N. If angle JNK equals 5x - 15, find the value of x.
VLD [36.1K]
One property of a rhombus is that the diagonals are perpendicular. This means that the diagonals intersect at 90 degree angles (right angles).

So we know that angle JNK is 90 degrees

angle JNK = 90 degrees
5x - 15 = 90
5x - 15 + 15 = 90+15
5x = 105
5x/5 = 105/5
x = 21

Answer: x = 21
3 0
3 years ago
If two 6-sided dice are rolled, what is the<br> probability of rolling double 2s?
Komok [63]

16.7%

There are 6 ways we can roll doubles out of a possible 36 rolls (6 x 6), for a probability of 6/36, or 1/6, on any roll of two fair dice. So you have a 16.7% probability of rolling doubles with 2 fair six-sided dice.

3 0
3 years ago
Read 2 more answers
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