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Yanka [14]
3 years ago
15

-3+m --------- = 10 9

Mathematics
1 answer:
mafiozo [28]3 years ago
8 0

Answer:

proper answer pls

Step-by-step explanation:

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Can someone help me with this<br> 2x+4y+3z=6<br> x-2y+z=-5<br> -x-3y-2z=-7<br> solve for x,y,z
Flauer [41]

Answer:

x = -7 2/3, y = 1 1/3 and z = 5 1/3.

Step-by-step explanation:

2x+4y+3z=6    .....  1

x-2y+z=-5        ...... 2

-x-3y-2z=-7      .......3

Add equations 2 and 3 to eliminate x:

-5y - z = -12   .....4

Multiply equation 2 by - 2:

-2x + 4y  - 2z = 10

Add this to equation 1:

8y + z = 16   ........ 5

Now add equation 4 to equation 5:

3y = 4

y = 4/3 = 1 1/3.

Now find z by substituting for y in equation 4:

-5(4/3) - z = -12

z = 12 - 20/3

z = 36/3 - 20/3 = 16/3 = 5 1/3.

Finally, we find x by substituting for y and z in equation 1:

2x + 4*4/3 + 3*16/3 = 6

2x = 6 - 16/3 - 16

2x =  18/3 - 16/3 - 48/3 = -46/3

x = 23/3 =  7 2/3.

3 0
3 years ago
If F is the function defined by F(x)=3x−1 find the solution set for F(x)=−7.
sveticcg [70]

Answer:

C is your answer.

Step-by-step explanation:

Hope is right, you're welcome, and good luck on your work.

please don't forget to click in the ❤, and on the ⭐.

5 0
3 years ago
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Technicians have installed a center pivot, circular irrigator for a farm that covers 20 acres.How long is the irrigation boom (i
skad [1K]
In your question where there is an acres which has a circular irrigator with a center pivot and covers 20 acres in the farm, the ask is how long is the irrigation boom in feet from the center to its farthest extent. The best answer that i could give is 526.6 feet.
8 0
3 years ago
on a SOL, a test that had 60 questions. how many questions could've you gotten wrong to have a passing grade?
iren [92.7K]
I think its 45 or 55
7 0
3 years ago
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Linear equation for (-5,3) and (-1,-1)
Alex787 [66]

Answer:

y = -x - 2

Step-by-step explanation:

y = mx + c

m = (-1-3)/(-1-(-5)) = -4/4 = -1

y = -x + c

(-1,-1)

-1 = -(-1) + c

c = -2

y = -x - 2

6 0
3 years ago
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