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mamaluj [8]
3 years ago
11

What is -2x-y=-9. 5x-2y=18

Mathematics
1 answer:
Vaselesa [24]3 years ago
7 0

Answer:

I put them in slop so

1) y= -2x+9

2) y=5/2x -9

it would help to say what u need to solve it for but hoped it helped

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WHAT IS 5,350 DIVIDED BY NOTHING =5.35
sveticcg [70]

Answer:

x = 1000

Step-by-step explanation:

5,350 ÷ x = 5.35

To find this you should divide 5,350 by 5.35.

5,350 ÷ 5.35 = 1000

x = 1000

4 0
2 years ago
Read 2 more answers
-1 + 4x=3x +3<br> Solve for x ?
docker41 [41]

Answer:

x = 4

Step-by-step explanation:

1. Regroup terms.

4x  - 1 = 3x + 3

2. Add 1 to both sides.

4x = 3x + 3 + 1

3. Simplify 3x + 3 + 1 to 3x + 4.

4x = 3x + 4

4. Subtrect 3x from both sides.

4x - 3x = 4

5. Simplify 4x - 3x to x.

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Therefor, the answer is, x = 4.

5 0
3 years ago
Approximate pi plus the square root of 70 to the nearest hundredth.
stich3 [128]

Answer:

  11.51

Step-by-step explanation:

In general, a calculator is required to evaluate the irrational sum ...

  π + √70

<h3>Calculator result</h3>

The result from a readily-available online calculator is shown in the attachment.

  π + √70 ≈ 11.51

__

<em>Additional comment</em>

You have probably memorized pi to several digits: 3.1416. To obtain the required estimate means you need to approximate √70 to about the same level of precision.

For a number n = a² +b, the square root can be approximated by the continued fraction ...

  √n ≈ a +b/(2a +b/(2a +...))

Effectively, the root (r) can be iterated from the recursive formula ...

  r' = a +b/(a +r)

For √70, we have 70 = 8² +6   ⇒   a=8, b=6

If the initial approximation of the root is r0≈a=8, then a couple of iterations gives ...

  r1 = 8 + 6/(8 +r0) = 8 + 6/(8 +8) = 8 3/8

  r2 = 8 + 6/(8 +r1) = 8 +6/(8 +8 3/8) = 8 48/131

This has sufficient accuracy for the purpose. The decimal equivalent of the sum then becomes ...

  3.1416 +8.3664 = 11.5080 ≈ 11.51

5 0
2 years ago
Write the equation of the line with the given slope and y-intercept. Slope = 5 y-intercept = 8 A) y=5x +8 B) x = 5y +8 C) y = 8x
Degger [83]
The answer is. A) y=5x+8
6 0
2 years ago
Write the difference and simplest form (5n-3)-(-2n+7) 100 points
alekssr [168]

Answer:

7n - 10

5n - 3 + 2n - 7

(distribute the negative sign throughout the equation) (then just combine like terms)

7 0
3 years ago
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