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MaRussiya [10]
3 years ago
9

There are 8 students singing a song in the school musical . Ms Lang put the students in 2 equal rows how many students are in ea

ch row
Mathematics
1 answer:
Semmy [17]3 years ago
4 0

Answer:

4 students in each row

Step-by-step explanation:

divide 8 into 2 so it is distributed easily

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Arianna gathered data about the distance of 20 cities from the equator and the average hours of sunlight per day in December for
stich3 [128]

<u>Answer-</u>

<em>A. strong negative correlation.</em>

<u>Solution-</u>

<u>Direction of a relationship</u>

  1. Positive- If one variable increases, the other tends to also increase. If one decreases, the other tends to also. It is represented by positive numbers(i.e 0 to 1).
  2. Negative- If one variable increases, the other tends to decrease, and vice-versa.  It is represented by negative numbers(i.e 0 to -1)

<u>Strength of a relationship</u>

  1. Perfect Relationship- When two variables are linearly related, the correlation coefficient is either 1 or -1. They are said to be perfectly linearly related, either positively or negatively.
  2. No relationship- When two variables have no relationship at all, their correlation is 0.

As in this case, correlation coefficient was found to be -0.91, which is negative and close to -1, so it is a strong negative correlation.


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3 years ago
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6 0
3 years ago
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Express each decimal to fraction 0.8255555…
Mama L [17]

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Need to find the volume. measurements in picture, please help.​
o-na [289]

Answer:

V = 288.5 yd^{3}

Step-by-step explanation:

To find the volume of a cone, use this equation:

V = \pi r^{2}\frac{h}{3}

r = radius

h = height

We aren't given the height of the cone, just the length of the side. To find the height use the Pythagorean Theorem:

a^{2}+ b^{2}= c^{2}

The value of 12.1 yds is the hypotenuse and the radius is the value of one of the legs. So, set it up like this:

a^{2}+5^{2}  =12.1^{2}

Now, solve:

a^{2}+25=  146.41                   Distribute the square

a^{2} =  121.41                           Subtract 25 from 146.41

\sqrt{a^{2} }=\sqrt{121.41}

a = 11.01862

So, the height is equal to 11.01862 yds.

Now, we can plug everything into the volume equation:

V = \pi (5)^{2}\frac{11.01862}{3}

Simplify (use calculator):

V = 288.5 yd^{3}

So, the volume of the cone is equal to 288.5   yd^{3}

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2 years ago
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Troyanec [42]

Answer:

Step-by-step explanation:

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