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Mathematics, 21.06.2019 13:20
Which equation can be used to solve for the unknown number? seven less than a number is thirteen. n-7=13 7-n=13 n+7=13 n+13=7
Answers: 1
Mathematics, 21.06.2019 17:30
If the speed of an electromagnetic wave is 100,000 cm/s and its wavelength is 100 cm, what is its frequency? a) 100,000 cycles per second (hz) b) 1 × 10-3 cycles per second (hz) c) 10,000,000 cycles per second (hz) d) 1,000 cycles per second (hz)
Answers: 1
Mathematics, 22.06.2019 00:00
Idon't get undoing if its pass adding and subtracting so can someone ? x-2 over 5 = 18
Answers: 1
How many are 15 raised to 2 ???...
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