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Leap Year
A leap year is a year containing one extra day in order to keep the calendar year synchronized with the astronomical or seasonal year. Typically once every four years, the exceptions can make this tricky to determine.
1,291 Questions
How many days does May have in a leap year?
May will always contain 31 days regardless of leap years, the only month affected by a leap year is February, which has 29 days in a leap year.
30 days hath September, April, June, and November all the rest have 31, except February which as 28 or 29 on leap year.
Nope. The only leap years of the '70s were 1972 and 1976.
What year did train 777 accident occur in PA?
It didnt happen in PA. It actually happened in Ohio. The train number was 8888 and it happend in 2001.
What year was the Anschutz 1913 serial number 241374 manufactured?
You will have to contact the company to find out.
No. Leap years are year numbers that are evenly divisible by 4, such as 2004 or 2008.
There are two exceptions; Century years divisible by 100 are not leap years, UNLESS they are also divisible by 400. So 1900 was not a leap year, but 2000 was.
What year was pistole modell 27 made with serial 171022?
A CZ 27 with a 171022 serial # was probably made around 1940.
yes, because 1896 is evenly divisible by 4 and not evenly divisible by 100
Note that 1896 is the last leap year of the 19th century, since 1900, the last year of the 19th century, is not a leap year because, although 1900 is evenly divisible by 4, it is also evenly divisible by 100 and not evenly divisible by 400.
Does a Leap year have 369 days?
Yes Thats cause of February 30 and February 31 and June 31 in 2012 In 2012 its Thursday February 30, 2012 and Friday February 31, 2012 and Sunday June 31, 2012
In question 31 what is the minimum snowfall and in which years does it occur?
The average annual snowfall in a certain region is modeled by the function below, where S represents the annual snowfall, in inches, and t represents the number of years since 1970. What is the minimum annual snowfall, in inches, for this region?S(t) = 20 + 10cos(t x pi/5) The first thing to realise is that the value of the cosine function can never be less than -1, regardless of what it is being applied to. Therefore the minimum value of the function is S(t) = 20 + (10 x [-1]) = 10 inches. ---- In which years between 1970 and 2000 did the minimum amount of snow fall? We are now required to deduce in which years this snowfall actually occured. We know that they are years such that cos(t x pi/5) = -1 Taking the inverse cosine of both sides: t x pi/5 = pi therefore t1 = 5 and the first year with minimum snowfall is 1975. However, we need to remember that trigonometric equations such as the one we have just solved have an infinite number of solutions. If our function had merely involved cos(t) then its period would have been 2pi, and the minimum amount of snow would have fallen every 2pi years. However, we actually have cos(t x pi/5) which fluctuates pi/5 times as fast as cos(t). It follows that the period of our function is 2pi/(pi/5) which equals 10. So minimum snowfall will occur in 1975 and again in 1985 and 1995.
How the year 2012 can be written also?
Roman numerals: MMXII
abbreviated: '12
words (like on wedding invitations): two thousand and twelve
How many leap years starting 1988 to 2915?
Between 1988 and 2915 there are 225 leap years. They are: 1988, 1992, 1996, 2000, 2004, 2008, 2012, 2016, 2020, 2024, 2028, 2032, 2036, 2040, 2044, 2048, 2052, 2056, 2060, 2064, 2068, 2072, 2076, 2080, 2084, 2088, 2092, 2096, 2104, 2108, 2112, 2116, 2120, 2124, 2128, 2132, 2136, 2140, 2144, 2148, 2152, 2156, 2160, 2164, 2168, 2172, 2176, 2180, 2184, 2188, 2192, 2196, 2204, 2208, 2212, 2216, 2220, 2224, 2228, 2232, 2236, 2240, 2244, 2248, 2252, 2256, 2260, 2264, 2268, 2272, 2276, 2280, 2284, 2288, 2292, 2296, 2304, 2308, 2312, 2316, 2320, 2324, 2328, 2332, 2336, 2340, 2344, 2348, 2352, 2356, 2360, 2364, 2368, 2372, 2376, 2380, 2384, 2388, 2392, 2396, 2400, 2404, 2408, 2412, 2416, 2420, 2424, 2428, 2432, 2436, 2440, 2444, 2448, 2452, 2456, 2460, 2464, 2468, 2472, 2476, 2480, 2484, 2488, 2492, 2496, 2504, 2508, 2512, 2516, 2520, 2524, 2528, 2532, 2536, 2540, 2544, 2548, 2552, 2556, 2560, 2564, 2568, 2572, 2576, 2580, 2584, 2588, 2592, 2596, 2604, 2608, 2612, 2616, 2620, 2624, 2628, 2632, 2636, 2640, 2644, 2648, 2652, 2656, 2660, 2664, 2668, 2672, 2676, 2680, 2684, 2688, 2692, 2696, 2704, 2708, 2712, 2716, 2720, 2724, 2728, 2732, 2736, 2740, 2744, 2748, 2752, 2756, 2760, 2764, 2768, 2772, 2776, 2780, 2784, 2788, 2792, 2796, 2800, 2804, 2808, 2812, 2816, 2820, 2824, 2828, 2832, 2836, 2840, 2844, 2848, 2852, 2856, 2860, 2864, 2868, 2872, 2876, 2880, 2884, 2888, 2892, 2896, 2904, 2908 and 2912.
Is leap year is permanent or not?
Leap year is not perminant cause youcan tell people you were born on a different date but celebrate the day before.
What is the percent to be born on a leap year?
One in every 4 years is a leap year, so about 25% of all people are born in a leap year.
What number must a year be divisble by to qualify as a leap year?
To find out if any year is a leap year there are two factors you have to take into account.
Firstly the last two digits of the date are divisible by 4.
- 1976 was a leap year (76/4=19)
- 1978 was not a leap year (78/4=19.5)
- 1980 was a leap year
- 1984 was a leap year
- 1994 was not leap year
- 2010 is not leap year
- 2012 will be a leap year
Secondly you have to take into account century years.
If the last two digits are 00 then you see if the 1st 2 digits are divisible by 4.
- 1600 was a leap year (16/4=4)
- 1800 was not a leap year (18/4=4.5)
- 2000 was a leap year
- 2100 will not be a leap year
- 2200 will not be a leap year
- 2400 will be a leap year.
How often in years do calendars repeat with the same day-date combinations?
Calendars repeat in a regular cycle, at least within a century, because each year has 1 day more than exactly 52 weeks, and leap years add another extra day . This combination results in a sequence of repeated calendars in a 28-year cycle. For NON-LEAP YEARS, a given arrangement of days will repeat in 6 years, then 11, then 11 years, then begin a new cycle. Crossing a century changes this because only every 4th century year (e.g. 2000 but not 2100, 2200, or 2300) is a leap year. LEAP YEAR calendars repeat every 28 years.
When Calendars repeat
There is a very simple pattern for determining "when" calendars repeat with the same day/date combinations. Define any year as one of four things: a "leap year", the "1st year after a leap year", the "2nd year after a leap year", or the "3rd year after a leap year". Add 28 to a "leap year" to get the next year that it will repeat. Add 6 to the "1st year after a leap year" to get the next year that it will repeat; add 11 to the "2nd year after a leap year" to get the next year that it will repeat. Also add 11 to the "3rd year after a leap year" to get the next year that it repeats. Ex: 2010 is the 2nd yr after a leap year and will repeat in 2010 + 11 = 2021. 2011 repeats in 2022; 2012 repeats in 2040; 2013 repeats in 2019; 2014 repeats in 2025; 2015 repeats in 2026; 2016 repeats in 2044; 2017 repeats in 2023; and so on.
How often calendars repeat
- Any leap year calendar will repeat in exactly the same way every 28 years.
- Any "1st year after a leap year" will repeat in a 6-11-11 cycle, ie, it will repeat in 6 years, then come up again in 11 years, come up again in 11 more years, then repeat the 6-11-11 year cycle.
- Both "2nd year after a leap year" and "3rd year after a leap year" will repeat in an 11-11-6 cycle.
Notice the patterns involve 6, 11, and 28. The cycles of 6-11-11 and 11-11-6 add to 28.
It can be 5, 6, or 11 years before an individual date-day combination comes up again. Individual days will repeat on a 6, 5, 6, 11 year cycle. For example, January 1, 2000 (a leap year) was a Saturday. The years that January 1 fell on or will fall on Saturday are: 1955, 1966, 1972, 1977, 1983, 1994, 2000, 2005, 2011, 2022, 2028, 2033, 2039, and 2050.
Possible Calendars
There are 14 possible combinations:
A year can begin on one of 7 weekdays, and the year can be a regular year or a leap year.
Note that the cycle doesn't repeat on a 14 year basis. Because the year can start on one of 7 days, and a leap year comes every 4 years, the cycle is more complicated, but any given year can have its calendar taken from one of the 14 possible calendars.
In a regular (non-leap) year, the year ends on the same day of the week as it starts (2005 started on Saturday, and will end on Saturday) That's 52 weeks and one day. The next year starts on the next day of the week, and should end on that same weekday. (2006 starts on a Sunday, and ends on a Sunday.)
A leap year will end on the weekday immediately after the weekday on which it starts, and is 52 weeks and 2 days long. (2004 started on a Thursday, and ended on a Friday).
How many weeks are left in 2010?
As of 2/17/2010 there are 45 full weeks and 2 days. Not including today.
1944:
m = 1000
cm = 1000 - 100 = 900
xl = 50 - 10 = 40
iv = 5 - 1 = 4
How do you create a flow chart for leap year?
draw a flow chart to find whether the given year is leap year or not
What years out of these years would be leap years 1904 1925 1988 1996 2001 2026 3080 4000 2012?
It would be 1904 1925 2001 and 2012 because their would be no way for th other ones
