Answer:
The radius is 4.2 and the diameter is always twice the amount of the radius so its 8.4.
Step-by-step explanation:
I want to say the answers are (-1,5) and (3,1125)
Answer:
Breaking apart an addend is a mental math strategy for addition. ... This strategy involves breaking up one addend in an equation into more manageable parts. Like many other mental math strategies, this strategy encourages students to think flexibly and to manipulate numbers in different ways
Step-by-step explanation:
Considering the volume of the cylinder, it is found that the height must be decreased by 18.51%.
<h3>What is the volume of a cylinder?</h3>
The volume of a cylinder of diameter d is given by:
In this problem, the diameter will be increased by 25%, hence d = 1.25d, and the volume will be of:
V = 0.390625 πd²h
Solving for the height, we have that:
h = V/0.390625 πd²
h = 0.8149 of the original, hence the height must be decreased by 18.51%.
More can be learned about the volume of a cylinder at brainly.com/question/9408912
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