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(XX) = 1,000*20 = 20,000 Or XX with a bar above each numeral
The number 20,000 can be written in Roman numerals as [XX] or as XX with a horizontal bar placed above it (which I cannot write with this keyboard).
subtrahend
O.K. First of all, you need to know that I = P X R X T...Interest equals principal times rate times time. I = 20000 X .07 X 1 ++++++++++++++++ I =12000 X .075 X 1 (That's 7% above and 1 is for 1 year, see?) I = $1,400 I = $900 Now, add the two numbers above, 1400 + 900 = $2,300. That's it, easy huh?
1. 18985 Roman Numeral for: 10000=X with horizontal bar above it 5000=V with horizontal bar above it 3000=MMM 900=CM LXXX=80 V=5 ..........................__ Therefore:18985=XVMMMCMLXXXV 2. 26495 Roman Numeral for: 20000=XX with horizontal bar above it 5000=V with horizontal bar above it 1000=M CD=400 XC=90 V=5 Therefore: ...........___ 26495=XXVMCDXCV
Bats' sounds are in the ultrasound range, so are the waves used for ultrasound diagnostic.
It depends how high the sound is, the a above middle C is 440Hz (vibrations/second) and there are 110Hz in an octave. From there you can work out the Hz of any note.
20000=XX with horizontal bar above the 2X's.
For the human ear, sound is audible in the range of 20 Hz (Hertz) to 20000 Hz. Sounds below 20 Hz are "infrasonic" and have too low a frequency to be heard; sounds above 20000 Hz are "ultrasonic" and are too high a frequency to be heard.
For the human ear, sound is audible in the range of 20 Hz (Hertz) to 20000 Hz. Sounds below 20 Hz are "infrasonic" and have too low a frequency to be heard; sounds above 20000 Hz are "ultrasonic" and are too high a frequency to be heard.
The pitch of a sound is the number of vibrations per second the instrument produces. An orchestra is pitched to the A above Middle C which vibrates at 440 cycles per second.
The sounds with frequency below the hearing range are named Infrasounds and the sounds with frequency above the hearing range are named Ultrasounds. I would say infrasonic . 20000
information about various mountain
There can be a lack of air and you need an oxegen mask in order to breath well 20000 ft high
"can't be heard by humans."
12.5 degrees c
Ultrasonic sounds are sounds that are above our hearing range.