Mathematics questions This is a list of recently added questions about mathematics. Play mathematics quiz and see all the questions. What would be printed by this module?26. It's 26 because (7*3=21+)5=6Created by: grifi bastion<10 answers2222138380This module has some kind of error and therefore it will not workThis module has some kind of error and therefore it will not work126261Programming riddles » Which of the writers was a mathematician?Lewis Carroll. Lewis Caroll, author of "Alice in Wonderland" completed his mathematical studies at Oxford University, was a lecturer at this University. He wrote about 250 scientific papers in mathematics, logic and cryptography. He was interested in mathematical puzzles and numerical games.Created by: Kinga Fabijańskavery hard 37% Rudyard KiplingRudyard Kipling2649Lewis CarrollLewis Carroll5247Karol DickensKarol Dickens4057John Ronald Reuel TolkienJohn Ronald Reuel Tolkien1887writers riddles » Who introduced the Fibonacci numbers?Leonardo of Pisa, also known as Leonardo Fibonacci, Leonardo Pisano Bigollo. His 1202 book Liber Abaci introduced the sequence to Western European mathematics, although the sequence had been described earlier as Virahanka numbers in Indian mathematics.Created by: Olavery hard 38% Edouard LucasEdouard Lucas212CartesiusCartesius558Gottfried Wilhelm LeibnizGottfried Wilhelm Leibniz584Leonardo of PisaLeonardo of Pisa858history riddles » Which numeral system was in use in ancient Sumer and Babilon?Sexagesimal. Remnants of highly composite sexagesimal system are in use even today for measuring angles, geographic coordinates and especially time. An hour of time is divided into 60 minutes, which in turn are divided into 60 seconds. Created by: smyruvery hard 32% octaloctal2902binarybinary2543decimaldecimal3149sexagesimalsexagesimal4059numbers riddles » Which of the following is true for the solution with the pH=0?The OH − ion concentration is smaller than the H+ ion concentration. In chemistry, pH is a numeric scale used to specify the acidity or alkalinity of an aqueous solution. It is the negative of the logarithm to base 10 of the activity of the hydrogen ion .Traditionally the pH is being defined as: pH = - log10 [H+], where [H+] it is a H+ ions concentration in mol/dm^3 (M). So if pH = 0 this H+ ions concentration is 1 mol/dm^3 and the solution is strongly acidic.Created by: Paweł Kołodziejczykvery hard 25% the OH − ion concentration is smaller than the H+ ion concentrationthe OH − ion concentration is smaller than the H+ ion concentration807the OH − ion concentration is greater than the H+ ion concentrationthe OH − ion concentration is greater than the H+ ion concentration627the OH − ion concentration is equal of the H+ ion concentrationthe OH − ion concentration is equal of the H+ ion concentration872Such solution doesn't existSuch solution doesn't exist830chemistry riddles » How many degrees an obtuse angle can have ?90-180. The obtuse angle may measure from 90 to 180 degrees. Angles having a degree of 0 to 90 are acute angles, whereas those from 180 to 360 - concave angles.Created by: TotalBellendeasy 77% 0-3600-36036290-18090-18088720-900-90279180-360180-3601915geometry riddles » What is the volume of a soap bubble with radius R=1 cm?4/3π cm3. Equation for the volume of a sphere: 4/3πR^3.Created by: Paweł Kołodziejczykhard 58% 3/4π cm33/4π cm326684/3π cm34/3π cm381274,3π cm34,3π cm31299It isn't possible to calculateIt isn't possible to calculate1702numbers riddles » What is the result of 2+2*2?6. The multiplication has a priority over addition, and so the result is 2+(2*2) = 2+4 = 6.Created by: Paweł Kołodziejczykvery easy 86% 441568813306611090Not enough dataNot enough data253numbers riddles » Which of the following numbers is the greatest?1/3. Quite surprisingly, most players answer that both answers 1/3 and 33% are correct. But 1/3 is more than 33%. (it is 33.3333333...)Created by: globalquiz.orghard 53% 1/31/3103390,30,380633%33%1657Both answers 1/3 and 33% are correctBoth answers 1/3 and 33% are correct6581numbers riddles » Which famous scientist was born on the Pi day? (March 14)Albert Einstein. 14 of March is celebrated on many schools and universities as both Pi Day and the birthday of Albert Einstein. On of the traditions is the 'Pi Pie' (pictured).Created by: globalquiz.orghard 46% Albert EinsteinAlbert Einstein5788Blaise PascalBlaise Pascal2277Isaac NewtonIsaac Newton2101all of the aboveall of the above2202scientists riddles » Play mathematics quiz and see all the questions.