The value sign(x) equals −1, 0, or 1 depending upon whether the value x is negative, zero, or positive. Sometimes this is written as sgn(x) as is the case h
El signo de valor (x) es igual a -1, 0 o 1, dependiendo de si el valor x es negativo, cero o positivo. A veces esto se escribe como sgn (x) como es el caso h
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Earth day is celebrated on April 22 every year. it was first celebrated in 1970. it is celebrated to raise awareness for environmental protection and to take care of our planet ( earth ).
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D.
If the vibrations have a low frequency, the sound is heard as a __low-pitched sound_____. If the vibrations have a high frequency, then the sound is heard as a __high-pitched sound_____.
Explanation:
High pitched sound is of higher frequency because they make the air molecules vibrate much faster than low-pitched sound. Due to their high frequency, their wavelength is shorter (Remember wavelength and frequency are inversely proportional). Vice versa is true to the low-pitched sound. They vibrate air molecules slower than high-pitched sound. Their wavelength is longer and frequency smaller.
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For mor on pitch of sound check out;
brainly.com/question/61859
brainly.com/question/1509263
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Answer:
A) divergent
Explanation:
Divergent plate boundaries are where you find the most explosive volcanoes.
Glucose + oxygen. 6CO2 + 6H2O → C6H12O6 + 6O2.