The exact volume of this cylinder is equal to 225π cubic centimeters.
<h3>How to calculate the volume of a cylinder.</h3>
Mathematically, the volume of a cylinder is given by this formula:

<u>Where:</u>
<u>Given the following data:</u>
Height of cylinder = 9 cm.
Diameter of cylinder = 10 cm.
Radius = 
Substituting the given parameters into the formula, we have;

Volume = 
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The use of imagery cannot be regarded as a cognitive technique for stress management in individuals and is denoted as option D from the list of available options below.
<h3>What is Cognitive technique?</h3>
These are the different types of ways and method in which our mind and thoughts can be influenced to help manage stress. It requires a mental method of ensuring that the stress doesn't build up and affect us in a negative manner.
Imagery on the other hand involves the creation of images which depicts more work being done instead of easing it which is therefore the reason why it isn't regarded as a cognitive technique for stress management in individuals.
The options include the following:
A - solving problems
b- modifying expectations.
c- maintaining positivity.
d- the use of imagery.
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What is kingdom of Eubacteria.
Explanation:
Streptococci are bacteria which are gram-positive in nature.
This organism belongs to the kingdom eubacteria since this kingdom is characterized by the following features that are also present in streptococcus:
1. Unicellular organism.
2. prokaryotic.
3. presence of cell wall made up of peptidoglycans.
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The probability that the the sample mean would be less than x=132.25 will be calculated as follows:
z=(x-σ)/μ
μ- mean
σ- standard deviation
z=(132.25-138)/28=-0.2054
thus:
P(X≤x)=0.4207=42.07%
The answer is 7.
(a + b)(a - b) = a ^ 2 - b ^ 2
So, (a + b)(a - b) is 21.
Since (a - b) is 3, divide 21 by 3 to get 7.