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If the radius of a circle decreased would the area decrease?
Yes. The area is proportional to the square of the radius. If the radius becomes smaller, so does the area.
When the diameter of a sphere is decreased by 25 percent by what per cent does its curved surface area decrease?
Surface area, S.A., of a sphere with radius r equals to 4pir2.Since the diameter is decreased by 25%, the radius is also decreased by 25%.That is r - 0.25r = 0.75r.So that S.A. = 4pi(0.75r)2 = 2.25pir2
What happen to the number of births in the two years prior to 1946?
decreased
Who invented frequency distribution?
Nobody invented frequency distribution. Events happen, as is the nature of events. Some events can have different outcomes and a frequency distribution is simply the proportion of times that these different outcomes happen (empirical freq distrib) or are expected to happen based on scientific laws (theoretical freq distrib).
How is the wavelength related to frequency for waves moving at a constant speed?
Whatever the wavelength and frequency happen to be, their product is always equal to the speed.
