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KonstantinChe [14]
3 years ago
10

Please help ??????????

Mathematics
1 answer:
dlinn [17]3 years ago
4 0

Answer:

  -9i -j

Step-by-step explanation:

DE has components E - D = (-1, 5) -(8, 6) = (-1-8, 5-6) = (-9, -1). These components are the multipliers for the orthogonal unit vectors (i, j).

In terms of the unit vectors i and j, DE is ...

  DE = -9i -j

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The line passes through the points (-5,0) and (-1,-4)<br> The slope of the line is
kotykmax [81]

Answer:

-1.

Step-by-step explanation:

First, you find the distance from the first x coordinate to the second. This is done by doing -5 - -1 (aka -5 + 1), which equals -4. Then, you find the distance form the first y coordinate to the second. THis is done by doing 0 - -4 (aka 0 + 4), which equals 4. Then, you divide the distance of the y's over the distance of the x's, which gets you the slope, which is -1. Hope this helped!

8 0
3 years ago
A profit formula for dining plates from the previous year was modeled by the function P(d) = –15d2 + 1,200d – 2,000. The manufac
dem82 [27]

Answer:

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Step-by-step explanation:

The profit function is:

P(d) = -15d^2+1,200d-2,000

Where

P is the profit

and

d is the number of units sold

Now, there is a 50% increase in number of units sold, so d will become:

50% = 50/100 = 0.5

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So, we have to replace "d" with "1.5d" in the function, which makes it:

P(d) = -15d^2+1,200d-2,000\\P(d) = -15(1.5d)^2+1,200(1.5d)-2,000\\P(d)=-15(33.75)d^2+1800d-2000\\P(d)=-33.75d^2+1800d-2000

From the equations shown, last answer choice is correct.

P(d)=-33.75d^2+1800d-2000

7 0
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A possibility is 18 feet.
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3 years ago
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Answer:

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Step-by-step explanation:

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