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TiliK225 [7]
3 years ago
7

Hurry pls Its timed

Mathematics
2 answers:
suter [353]3 years ago
7 0

Answer:

y = 9

Step-by-step explanation:

We notice that both points have a y-coordinate of 9. Since they are the same, the equation must be y = 9 because the function can't "dip" or "rise", otherwise it would be a piecewise function and not a linear function. The equation y = 9 basically means that no matter what x is, y will always be 9.

Serggg [28]3 years ago
5 0

Answer:

y = 9

Step-by-step explanation:

First find the slope of the line.  As we go from (-2, 9) to (15, 9), x increases by 17 but y does not change at all.  Thus the line is y = 9, good for all x values.

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The vertices of a triangle are labeled clockwise A(–5, 3), B(6, 1), and C(–2, –3). How could you show that the figure is a right
mafiozo [28]

Explanation:

When the points are plotted on a graph, it is easy to see that the slope of AC is -2 and the slope of BC is 1/2. These slope values have a product of -1, so the corresponding line segments are perpendicular to each other.

___

If you have studied vectors, you can find the dot product of AC with BC:

  AC = (-5, 3) -(-2, -3) = (-3, 6)

  BC = (6, 1) -(-2, -3) = (8, 4)

The dot product is ...

  (-3, 6)·(8, 4) = (-3)(8) + (6)(4) = -24+24 = 0

When the dot product of vectors is zero, they are perpendicular.

5 0
3 years ago
What is the value of a? -2(a-8)+6a=36
Aleksandr [31]
First we expand the brackets:

-2a + 8 + 6a = 36
4a + 8 = 36

We then need to get the a's onto one side and the numbers onto the other:

4a = 28

We can then divide to get an x by itself:

a = 28/4 = 7
6 0
3 years ago
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a paper factory makes 8415 sheets of paper and 45 minutes how many sheets of paper does the factory make in one minute
lesantik [10]
Do 8415 divided by 45 which is 187


4 0
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Your mum has saved $12,000 and has agreed to give you a share. Would you rather have 1/5 or 1/10 ?
zhenek [66]

Hello from MrBillDoesMath!

Answer:

1/5

Discussion:

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$12000 * ( 1/10) = $1200


As 2400 > 1200, (1/5) is the best way to go

Thank you,

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Answer:

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Step-by-step explanation:

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