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Dafna11 [192]
3 years ago
9

You have decided to walk in a long-distance race. There are two teams that you can join. Team A walks at a constant rate of 2.5

miles per hour. Team B walks 4 miles the first hour and then 2 miles per hour after that.
Mathematics
1 answer:
velikii [3]3 years ago
6 0

Where is the question?? I'll be glad to answer in the comments once the question is given. Hope to hear from you!

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The measure of EFH is twice the measure of GFH. What is the
Vladimir [108]

Answer:

30° =  m∠GFH

Step-by-step explanation:

Since ∠EFH and ∠GFH are complementary, the sum of their measures i 90.

Let x = m∠GFH

2x = m∠EFH

m∠GFH + m∠EFH = 90

x + 2x = 90

3x = 90

x = 30° =  m∠GFH

8 0
3 years ago
In a hypothesis test, standard error measures ____.
Lina20 [59]

Answer:

The correct answer is:

the amount of difference expected just by chance (b)

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Standard error in hypothesis testing is a measure of how accurately a sample distribution represents a distribution by using standard deviation. For example in a population, the sample mean deviates from the actual mean, the mean deviation is the standard error of the mean, showing the amount of difference between the sample mean and the actual mean, occurring just by chance. Mathematically standard error is represented as:

standard error = (mean deviation) ÷ √(sample size).

standard error is inversely proportional to sample size. The larger the sample size, the smaller the standard error, and vice versa.

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3 years ago
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