It is the natural number following 14 and preceding There are 15 perfect matchings of the complete graph K 6 and 15 rooted binary trees with four labeled leaves, both of these being among the types of object counted by double factorials. With only two exceptions, all prime quadruplets enclose a multiple of 15, with 15 itself being enclosed by the quadruplet 11, 13, 17, If a positive definite quadratic form with integer matrix represents all positive integers up to 15, then it represents all positive integers via the 15 and theorems. The Hanbali Sunni madhab states that the age of fifteen of a solar or lunar calendar is when one's taklif obligation or responsibility begins and is the stage whereby one has his deeds recorded.
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Swift produced the song with Nathan Chapman. The song was released on August 30, by Big Machine Records , as the fourth single from Swift's second studio album, Fearless The song was inspired by Swift's freshman year of high school at Hendersonville High School , where she first experienced heartbreak, along with her best friend Abigail Anderson. After writing it, Swift asked Anderson for authorization to record the song due to personal references in the song ; Anderson affirmed and it was ultimately included on Fearless. The music video for "Fifteen" was directed by Roman White. It was filmed using a green screen and is heavily accentuated with special effects. The video features Swift walking through a garden, where she relives many memories with Anderson. Swift partnered with electronics retailer Best Buy for 15, a program that allowed teens to help decide how funds would be distributed among various charities. She described it as incorporating things she wished someone would have told her in a song when she was younger. You don't know anything, but you think you know everything", Swift said.
Add fifteen to one of your lists below, or create a new one. Improve your vocabulary with English Vocabulary in Use from Cambridge. Learn the words you need to communicate with confidence. Sparkling, glinting and glistening Words related to light, Part 2. Definitions Clear explanations of natural written and spoken English.
Top definition. Fifteen is the age in a boy's life where everything sucks. Your body turns against you in every way possible. Pimples, voice cracks, terrible body odor, unnecessary hair, constant horniness, and greasy skin and hair. Hormones run wild throughout your body producing an array of emotions you can't even understand let alone deal with. Meanwhile, you have to deal with high school.