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MrRissso [65]
2 years ago
12

If x2 = 20. what is the value of x? sqrt 10 sqrt 20 10 40​

Mathematics
1 answer:
iren [92.7K]2 years ago
7 0
The answer is sqrt 20
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How many solutions does 9(z+8)=-9z-72 have
zloy xaker [14]

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General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Equality Properties

Step-by-step explanation:

<u>Step 1: Define equation</u>

9(z + 8) = -9z - 72

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Distribute 9:                              9x + 72 = -9z - 72
  2. Add 9z to both sides:               18z + 72 = -72
  3. Subtract 72 on both sides:       18z = -144
  4. Divide 18 on both sides:           z = -8

Here we see that we will get only 1 solution for <em>z</em>.

4 0
2 years ago
Númer 9 and 10 please help
vredina [299]
9. -1,07, 1/2. 3........it is all I could see

10. -V25= -5
-5, -4,3, 0, V15, 4,2
8 0
2 years ago
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