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stiv31 [10]
3 years ago
10

What is the volume of a cylinder that has the height of 4 inches and radius of 7 inches?

Mathematics
1 answer:
nordsb [41]3 years ago
7 0

Answer:615.44

Step-by-step explanation:

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Which is the correct formula to calculate the volume of a cone?
Vinvika [58]

Answer:

Step-by-step explanation:

1/3 πr²h

8 0
3 years ago
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A 12 - ft ladder leans against the side of a house. The bottom of the ladder is 8 ft from the side of the house. How high is the
Paha777 [63]
A^2 + b^2 = c^2
8^2 + b^2 = 12^2
64 + b^2 = 144
b^2 = 144 - 64
b^2 = 80
b = sqrt 80
b = 8.9 ft <===
6 0
3 years ago
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Suppose a shipment of 120 electronic components contains 3 defective components. to determine whether the shipment should be​ ac
Likurg_2 [28]

For this problem, the most accurate is to use combinations


Because the order in which it was selected in the components does not matter to us, we use combinations

Then the combinations are nC_r = \frac{ n! }{r! (n-r)!}

n represents the amount of things you can choose and choose r from them


You need the probability that the 3 selected components at least one are defective.

That is the same as:

(1 - probability that no component of the selection is defective).

The probability that none of the 3 selected components are defective is:

P = \frac{_{117}C_3}{_{120}C_3}


Where _{117}C_3 is the number of ways to select 3 non-defective components from 117 non-defective components and _{120}C_3 is the number of ways to select 3 components from 120.

_{117}C_3 = 260130

_{120}C_3 = 280840


So:

P = \frac{260130}{280840} = 0.927


Finally, the probability that at least one of the selected components is defective is:


P = 1-0.927 = 0.0737

  P = 7.4%

3 0
4 years ago
A model car is 8 inches long and 5.2
Sphinxa [80]
Use proportions here - 8/5.2 = 96/width of actual car. using cross multiplication, 5.2*96 = 8x. this gives you 499.2 = 8x. divide both sides by eight to get x=62.4. the width of the actual car is 62.4 inches.
7 0
3 years ago
Use square roots to solve the equation x2 = −25 over the complex numbers. Select all the solutions.
Nezavi [6.7K]

Answer:

E and A

Step-by-step explanation:

7 0
3 years ago
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