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Naily [24]
3 years ago
10

Hey, can someone help me with this, please?

Mathematics
1 answer:
Pie3 years ago
3 0
If the area of the yard is 3a^2 and is also 7,500^2 then 3a^2=7,500^2

So we want to find what A is not 3a^2.

3a^2=7,500^2 now we square root both sides
3a=7,500 now we divide both sides by 3
a=2,500

And there you go a=2,500

Bainliest if this helped you?
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A^2+B^2=C^2 so 16+25=81 then no ,but it can be an obtuse triangle because the equation a^2+b^2
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1/2

Step-by-step explanation:

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A 33 gram sample of a substance that's<br> used to detect explosives has a k-value<br> of 0.1467.
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Answer:From the attached graphic, Half-life = ln (.5) / k

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3 0
3 years ago
How many solutions does 9(z+8)=-9z-72 have
zloy xaker [14]

Answer:

1 solution.

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
3 years ago
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