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Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?
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Present age of man is 45 years, 5 years back his age was 4 times age of his son what is present age of his son?
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The equation of a parabola is given. y=18x2+4x+20 what are the coordinates of the focus of the parabola?
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Awavelength of 610 nm was found to be the most intense wavelength emitted by copper. answer the following questions about this wavelength of light. a) what is this wavelength in cm? b) what is the frequency that corresponds to this wavelength? c) what is the energy of light of this wavelength? d) what is the wavenumber corresponding to this wavelength?
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Hi please help i’ll give brainliest please
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