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aleksandrvk [35]
3 years ago
8

Casey said that 40 people were surveyed. Is his answer reasonable?

Mathematics
2 answers:
Alexus [3.1K]3 years ago
6 0
If 40 people were surveyed then it is reasonable
ozzi3 years ago
5 0
It depends on your population size, and if your sample is biased. If your sample was 40 out of 100, then yes, it would be reasonable. But if your sample was 40 out of 1000, then no because the sample is too small.
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How much acetic acid is in a 5 liter container that is marked 80% acetic acid. How much is water
Vinvika [58]

Answer:

1 liter of water

Step-by-step explanation:

If 80 % is acid that's means 4 liters of the 5 is acid. (0.8 * 5)

The remaining amount is 1

8 0
3 years ago
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Subtract (-2x² +3x-5) from( 6x2 -4x+2)
Andreyy89

Answer:

8x² - 7x + 7

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Distributive Property

<u>Algebra I</u>

  • Combining Like Terms

Step-by-step explanation:

<u>Step 1: Define</u>

(6x² - 4x + 2) - (-2x² + 3x - 5)

<u>Step 2: Simplify</u>

  1. Distribute negative:                    6x² - 4x + 2 + 2x² - 3x + 5
  2. Combine like terms (x²):             8x² - 4x + 2 - 3x + 5
  3. Combine like terms (x):               8x² - 7x + 2 + 5
  4. Combine like terms (Z):              8x² - 7x + 7
8 0
3 years ago
A rock is thrown upward with a velocity of 12 meters per second from the top of a 34 meter high diff, and it moloses the diff on
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3 years ago
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Cerrena [4.2K]

Answer:

Number 4

Step-by-step explanation:

I have done this quiz before, and that is what it looks like

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4 0
3 years ago
Solve the linear equation using equivalent equations to isolate the variable. Express your solution as aninteger, as a simplifie
MakcuM [25]

Recall that like terms are terms that have the same variable with the same exponent, and that all constants are like terms.

To solve the given equation for y, first, we add like terms:

-10.4=y-1.6.

Now, adding 1.6 to both sides of the equation, we get:

\begin{gathered} -10.4+1.6=y-1.6+1.6, \\ -8.8=y\text{.} \end{gathered}

Answer:

y=-8.8.

6 0
1 year ago
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