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Nasa's Chandra X-ray Observatory recently captured a stunning image of 30 Doradus B, a supernova remnant that is part of a vibrant region of space where stars have been forming for millions of years. 30 Doradus B, also cataloged as NGC 2060, is a supernova remnant found in the Large Magellanic Cloud, a small satellite galaxy of the Milky Way. A supernova is the explosion of a star whose luminosity after an eruption suddenly increases many millions of times its normal level. Supernovas are "the largest explosion that takes place in space
If ‘ × ’ means ‘ + ’. ‘+’ means ‘÷’, ‘-’ means ‘×’ and ‘÷’ means ‘-’, then 9 × 8 – 5 + 40 ÷ 3 = (?)
...In a certain code of language, ‘+’ represents ‘×’, ‘-‘ represents ‘+’, ‘×’ represents ‘÷’ and ‘÷’ represents ‘-‘. Wh...
If ‘ > ’ means ‘plus’, then ' 55 > 24 $ 4 < 8 % 6 ' = ?
After interchanging "×" and "÷", "7" and "4", which of the following equations becomes correct?
If ‘÷’ means ‘addition’, ‘+’ means ‘subtraction’, ‘-’ means ‘multiplication’, and ‘x’ means ‘division’, what will be th...
If ‘$’ means ‘÷’, ‘#’ means ‘-’, ‘!’ means ‘×’ and ‘^’ means ‘+’, then the value of 84 ! 5 # 6 ^ 21 $ 7 is
...Select the correct combination of mathematical signs to replace (#) signs and to balance the given equation.
630 # 15 # 14 # 5 # 24 # 121
Select the correct sequence of mathematical signs to replace the ‘@’ signs so as to balance the given equation.
252 @ 28 @ 11 @ 5 @ 22 = 42
If x stands for ‘addition’, ÷ stands for ‘subtraction’, + stands for ‘multiplication’, and – stands for ‘division’, then 30 x 40 – ...