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dsp73
3 years ago
15

Find the volume of a ball with radius 6 inches. Use the formula V=4/3 3.14r^3. Round to the nearest whole number

Mathematics
1 answer:
konstantin123 [22]3 years ago
5 0
Answer: 904 inches cubed

Explanation:
Since you know that the radius is 6 inches, then all you have to do is plug it into the formula.
V=(4/3)*(3.14)*(6)^3
=(4/3)*(3.14)*(216)
=904.32
When you round that to the nearest whole number, it becomes 904. 
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Step-by-step explanation:

The ladder forms a right angle triangle with the building and the ground. The length of the ladder represents the hypotenuse of the right angle triangle. The height, h from the top of the ladder to the base of the house represents the opposite side of the right angle triangle.

The distance from the foot of the ladder to the base of the house represents the adjacent side of the right angle triangle.

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Suppose we roll a fair six-sided die 20 times and draw ten cards from a standard 52-card deck. Let X be the number of "6"s rolle
Lera25 [3.4K]

Answer:

a) Expected value = 6.406

Variance = 4.905

Standard deviation = 2.45

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Step-by-step explanation:

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X₁ = number of 6´s

X₂ = number of Jack, Queen, King or Aces

The mean of X₁ is:

MeanX₁ = n * p = 20 * (1/6) = 3.33

The variance of X₁ is:

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The standard deviation is:

Xdevi = 4.905/2 = 2.45

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The probability of given event is equal to:

P = 0.231 * 0.37 = 0.08547

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