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Alex73 [517]
3 years ago
13

Help please 23 points will make brainliest

Mathematics
1 answer:
svlad2 [7]3 years ago
8 0
It should be 78.54.
Double check that. 
Formula: V=πr2h/3
r2 is R squared 
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Find the length of the third side. If necessary, round to the nearest tenth.
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Answer:

4.5

Step-by-step explanation:

To find the hypotenuse of a right triangle, we use Pythagorean's Theorem which states that a^{2}+b^{2} =c^{2}. Plugging in the values of the two legs given, we get 2^{2} +4^{2} =c^{2} =20. We can take the square root of each side and get that c=\sqrt{20} =4.5.

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Bruce is going to call one person from his contacts at random. He has 25 total contacts. 20 of those contacts are from his neigh
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If f(x)= 1/x and g(x) = 3x+2 find (g • g)(-4)
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Step-by-step explanation:

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3 years ago
For the data set: {1.5, 2.3, 1.7, 3.6, 2.9, 4.2}, identify the percentile for the value 2.9.
antiseptic1488 [7]

Answer:

58.33%.

Step-by-step explanation:

We have been given a data set {1.5, 2.3, 1.7, 3.6, 2.9, 4.2} and we are asked to find the percentile for value 2.9.

First of all let us arrange our data points from smallest to largest as: {1.5, 1.7, 2.3, 2.9, 3.6, 4.2}.    

We can see that our data set has 6 data points and 2.9 is 4th data point.  

We will use percentile rank formula to solve our problem.  

P=\frac{(100*(i-0.5))}{n}, where,

P= Percentile rank,

i= Rank of the data point,

n = Total number of data points.

Upon substituting our given values we will get,

P=\frac{(100*(4-0.5))}{6}

P=\frac{(100*3.5)}{6}

P=\frac{350}{6}

P=\frac{350}{6}

P=58.333  

Therefore, percentile rank for the value 2.9 is 58.33%.

3 0
3 years ago
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