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Gre4nikov [31]
2 years ago
14

The mean of a distribution of scores is 49, with a standard deviation of 16. Calculate the standard error for a distribution of

means based on samples of 30 people.
SAT
1 answer:
PolarNik [594]2 years ago
3 0

the standard error for a distribution is 33

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How can i graph the equation using the slope and the y intercept y=7/4x+2
Lelu [443]

Since you already have the equation, all you need to do is pick two values of x.

For example, when x = 0, you get y = 7/4(0) + 2 = 2. So the line passes through the point (0, 2). When x = 4 (picked to cancel the 4 in the fraction), you get y = 7/4(4) + 2 = 9, so the line also passes through the point (4, 9).

You can describe an entire line by any two points that it contains. So plot these two points, then connect the dots with a line passing through them both.

3 0
3 years ago
If a person takes 30 ml of vinegar a day and the molarity of the vinegar is 0. 84 m then how many grams of acetic acid (hc2h3o2
babunello [35]

The mass of the acetic acid is 1.512 g.

<h3 /><h3>What is Molarity?</h3>

molarity is the concentration of a substance in mol per dm³

From the question,

The number of moles contained in the 30 mL vinegar is

  • n = (0.84×30)/1000
  • n = 0.0252 mol.

the molar mass of vinegar is calculated below.

  • m.m of (HC₂H₃O₂) = [1+(12×2)+(1×3)+(16×2)]
  • m.m = (1+24+3+32]
  • m.m = 60 g/mol.

To calculate the mass of acetic acid, we use the formula below.

  • R.m = n×m.m............. Equation 1

Where

  • R.m = mass of acetic acid.

Substitute these values into equation 1

  • R.m = (0.0252×60)
  • R.m = 1.512 g.

Hence, The mass of the acetic acid is 1.512 g.

Learn more about molarity here: brainly.com/question/20383725

8 0
3 years ago
Dale created slides with charts that support information in his presentation. What should do when he presents these slides? (3 p
Kitty [74]

Answer:

C

Explanation:

I took the test.

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3 years ago
How should the subject-verb agreement in this sentence be changed, if at all?
worty [1.4K]
Is the only one who has
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3 years ago
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Which of the following is the correct equation for photosynthesis?
KatRina [158]

Answer:

6CO2 + 6H2O → C6H12O6 + 6O2

Explanation:

is the photosynthesis equation

4 0
3 years ago
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