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Andrei [34K]
3 years ago
15

I need help it do today

Mathematics
1 answer:
Alex787 [66]3 years ago
4 0
For the first one I believe its 20,000 - 10,000= 10,000
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Solve the following 3 × 3 system. Enter the coordinates of the solution below.
defon

9514 1404 393

Answer:

  (x, y, z) = (-1, 0, -3)

Step-by-step explanation:

We notice that the coefficients of z are such that elimination of the z term from the equations is made easy.

Adding equations 1 and 2:

  (2x -3y -2z) +(x +3y +2z) = (4) +(-7)

  3x = -3

  x = -1

Adding equations 2 and 3:

  (x +3y +2z) +(-4x -4y -2z) = (-7) +(10)

  -3x -y = 3

Substituting for x, we get ...

  (-3)(-1) -y = 3

 0 = y . . . . . . . . . . . add y-3 to both sides

Then z can be found from any equation. Substituting for x and y in the second equation gives ...

  -1 +2z = -7

  2z = -6 . . . . . add 1

  z = -3 . . . . . .divide by 2

The solution is (x, y, z) = (-1, 0, -3).

3 0
3 years ago
Log32- log 32-log 4. simplify​
Rufina [12.5K]

Answer:

huh

Step-by-step explanation:

...

..

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4 0
2 years ago
What’s the inverse of 2(x-2)^2 = 8(7+y)
Anettt [7]

Answer:

y= (x-2)^2/4-7

Step-by-step explanation:

5 0
3 years ago
5, 18, 6, 18, 13 WHATS THE INTERQUARTILE RANGE??
Harlamova29_29 [7]

Answer: 12.5

Step-by-step explanation:

25th Percentile: 5.5

50th Percentile: 13

75th Percentile: 18

Interquartile Range: 12.5

5 0
3 years ago
Misaki cut some wood for a bookcase she is building.She needs to find how many 1
den301095 [7]

Answer:

3ft + 2ft?

Step-by-step explanation:

sorry i would take this with a bucket of salt its prob not c0rr3t

6 0
3 years ago
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