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maxonik [38]
3 years ago
13

BRAINLIEST AND STARS

Mathematics
2 answers:
IrinaK [193]3 years ago
7 0

Answer:

D

Step-by-step explanation:

Serjik [45]3 years ago
6 0
The answer is 10 so D

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What is the range of y = -xsquared2 - 2x + 3?
Flura [38]

Answer:

( - infinity, 4) thats the range hope it helps.

8 0
3 years ago
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A mean equal to 5 cm. A simple random sample of wrist breadths of 40 women has a mean of 5.07
neonofarm [45]

Answer:

The value of the test statistic is z = 1.34

Step-by-step explanation:

The test statistic is:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, \sigma is the standard deviation and n is the size of the sample.

Test if the mean is equal to 5:

This means that the null hypothesis is \mu = 5

A simple random sample of wrist breadths of 40 women has a mean of 5.07 cm. The population standard deviation is 0.33 cm.

This means that n = 40, X = 5.07, \sigma = 0.33

Find the value of the test statistic?

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{5.07 - 5}{\frac{0.33}{\sqrt{40}}}

z = 1.34

The value of the test statistic is z = 1.34

5 0
3 years ago
A miniature horse weighs 228 fewer kilograms than a Shetland pony. Use the table to find the weight of a Shetland pony. Miniatur
kondor19780726 [428]
So 228 plus 53 is 281 so pony is 281 kg
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4 years ago
What is the scale factor?
UkoKoshka [18]
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5 0
3 years ago
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Josiah ran 4/5 mile. How many tenths are equal to 4/5 mile.
kati45 [8]
<span>Josiah ran 4/5 miles. We need to find the tenths that is present to the given number which is 4/5.
4/5 is a fraction, and since we are looking for tenths which is a decimal value. Thus, we need to convert this fraction to decimals.
To convert, simply divide the numerator by the denominator.
In the given number, 4 is our numerator and 5 is our denominator.
=> 4 / 5
=> 0.8
Therefore, 8 is the value of tenths because it is the number next to the decimal point.

</span>



4 0
4 years ago
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