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andrew11 [14]
2 years ago
5

PLEASE HELP ME!

Mathematics
2 answers:
Gala2k [10]2 years ago
7 0

Answer: the answer would be 8.94

Step-by-step explanation:

I hope this helps! :)

Im  sorry if it turns out to be wrong!

Have a good rest of your day!

Tresset [83]2 years ago
3 0
The Pythagorean theorem is a^2+b^2=c^2
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starting at sea level a submarine descends at a constant rate to a depth of negative 5 6 Mile relative to sea level in 4 minutes
ycow [4]

Answer:

14

Step-by-step explanation:

To find how many miles the submarine is going per minute, you need to divide the miles (56) by the minutes (4)

56/4 =

14 miles per minute

If the submarine has been descending for 1 minute, and descends at 14 miles per minute, you can conclude that it wend 14 miles below sea level in 1 minute.

7 0
4 years ago
Using traditional methods, it takes 8.1 hours to receive a basic flying license. A new license training method using Computer Ai
Karo-lina-s [1.5K]

Answer:

The value of the test statistic is 0.4.

Step-by-step explanation:

The value of the test statistic is given by:

Our test statistic is:

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

In which X is the sample mean, \mu is expected mean, \sigma is the standard deviation and n is the size of the sample.

Using traditional methods, it takes 8.1 hours to receive a basic flying license.

This means that \mu = 8.1

A researcher used the technique with 23 students and observed that they had a mean of 8.2 hours with a standard deviation of 1.2.

This means that n = 23, X = 8.2, \sigma = 1.2

Find the value of the test statistic.

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

t = \frac{8.2 - 8.1}{\frac{1.2}{\sqrt{23}}}

t = 0.4

The value of the test statistic is 0.4.

8 0
3 years ago
Please help I don't understand!
levacccp [35]

Answer:

9

Step-by-step explanation:

Take the sides in proportion.

⇒ \frac{AE}{AD} =\frac{AB}{AC}

⇒ \frac{12}{12+8} =\frac{x}{15}

⇒ \frac{12}{20} =\frac{x}{15}

⇒ \frac{3}{5} =\frac{x}{15}

⇒ 3 = \frac{x}{3}

⇒ x = 3 × 3

⇒ x = 9

3 0
2 years ago
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That's the best way to factor it
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3 years ago
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Reflection across the y-axis
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3 years ago
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