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4 years ago

Six less than a number is 15.let x represent the number.Which equation represents this?

Mathematics

2 answers:

adelina 88 [10]4 years ago

8 0

X-6=15
i agree with the person above me, this is the correct answer

noname [10]4 years ago

6 0

X-6=15
hope this helps
-turtles12345

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2.) A scuba diver is swimming 18 feet below the water's surface. The diver swims up slowly at 0.6 feet per second for 5 seconds

ioda

Answer:

The diver's new depth is <u>14.4 feet</u>.

Step-by-step explanation:

Given:

A scuba diver is swimming 18 feet below the water's surface.

The diver swims up slowly at 0.6 feet per second for 5 seconds and then swims up for 2 more seconds at 0.3 feet per second.

Now, to find the diver's new depth.

As given,

Total depth = 18 feet.

Total distance covered:

$Distance\ covered = 0.6\times 5+0.3\times 2$

$Distance\ covered = 3+0.6$

$Distance\ covered =3.6$

Now, to get the new depth:

New depth = Total depth - distance covered.

$New\ depth=18-3.6$

$New\ depth=14.4\ feet.$

Therefore, the diver's new depth is 14.4 feet.

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4 years ago

According to the U.S. Census Bureau, the mean of the commute time to work for a resident of CA is 21.5 minutes. Assume that the

Sunny_sXe [5.5K]

Using Chebyshev's Theorem, the minimum percentage of commuters in has a commute time within 2 standard deviations of the mean is of 75%.

<h3>What does Chebyshev’s Theorem state?</h3>

When we have no information about the population distribution, Chebyshev's Theorem is used. It states that:

At least 75% of the measures are within 2 standard deviations of the mean.

At least 89% of the measures are within 3 standard deviations of the mean.

An in general terms, the percentage of measures within k standard deviations of the mean is given by $100(1 - \frac{1}{k^{2}})$ .

Hence, the minimum percentage of commuters in has a commute time within 2 standard deviations of the mean is of 75%.

More can be learned about Chebyshev's Theorem at brainly.com/question/23612895

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2 years ago

On a local sports team, 30 % of 50 players are -handed. How many left -handed players are there?

goldfiish [28.3K]

Answer:

35 players are left-handed

Step-by-step explanation:

50% of 50 is 25

40% of 50 is 20

30% of 50 is 15

50 - 15 = 35

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3 years ago

Find the integral<br> ∫(cos(1/x)) /x^2 dx

melisa1 [442]

Answer:

Step-by-step explanation:

∫(cos(1/x)/x² dx

$put~\frac{1}{x} =t\\diff.\\\frac{-1}{x^2} dx=dt\\\int(- cos~t~)dt=-sin~t+c\\=-sin (\frac{1}{x} )+c$

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2 years ago

A cube has a surface are of 54. What's the volume?

bixtya [17]

Answer:

Step-by-step explanation:

54/6=9 meaning each face has an area of 9.

Meaning each side has an area of 3.

That means the volume is 3*3*3=27

6 0

3 years ago

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