{"id":643,"date":"2022-08-30T15:04:46","date_gmt":"2022-08-30T15:04:46","guid":{"rendered":"https:\/\/unknownerror.org\/index.php\/2013\/11\/09\/math-help-pretty-please-collection-of-common-programming-errors\/"},"modified":"2022-08-30T15:04:46","modified_gmt":"2022-08-30T15:04:46","slug":"math-help-pretty-please-collection-of-common-programming-errors","status":"publish","type":"post","link":"https:\/\/unknownerror.org\/index.php\/2022\/08\/30\/math-help-pretty-please-collection-of-common-programming-errors\/","title":{"rendered":"Math help pretty please?-Collection of common programming errors"},"content":{"rendered":"

1. Find all numbers for which the rational expression is undefined. If the rational expression is defined for all real numbers so state 5x over 3x-12 2. Find all numbers for which the rational expression is undefined. If the rational expression is defined for all real numbers so state.<\/p>\n

x+5 over x^2+x-42<\/p>\n

    \n
  1. 1. 5x\/(3x-12) is undefined when 3x-12 = 0. So, when x=4, this is undefined! 2. (x+5)\/(x^2+x-42) is undefined when x^2+x-42=0. x^2+x-42=0 (x+7)(x-6)=0 x=-7,6\n

    So it is undefined when x=-7 or x=6!<\/p>\n<\/li>\n

  2. 1. When finding when a fraction is undefined, it doesn’t matter what the top of the fraction is. A fraction is undefined when the bottom is 0. This is because it’s impossible to divide by 0. Therefore, you have to find when 3x – 12 = 0. This is just a simple algebra problem. 3x – 12 = 0 3x = 12 x = 4 The fraction is undefined when x = 4 2. Same thing as the last one. You only have to pay attention to the bottom of the fraction. x\u00b2 + x – 42 = 0 x\u00b2 – 6x + 7x – 42 = 0 x(x-6) + 7(x-6) = 0 (x+7)(x-6) = 0 When either of these equals 0, then the equation is true because they are multiplied. Therefore, when x = -7 or when x = 6 the equation is true.\n

    The fraction is undefined when x is either of these values.<\/p>\n<\/li>\n

  3. 1. it’d be (5x)\/(3x-12) you cannot divide by zeros so simply set the denominator equal to zero and solve. 3x-12=0 3x=12 x=4 2.(x+5)\/(x^2+x-42) do the same as the last problem x^2+x-42=0 factor (x+7)(x-6) x+7=0 x-6=0 x=-7 x=6\n

    so your answers are 6 and -7<\/p>\n<\/li>\n

  4. \n

    Simply the denominator should be different from zero in the first case x is different from 4 in the second (X-6)(x+7)is different from zero, so x is different from 6 and -7<\/p>\n<\/li>\n<\/ol>\n

    Originally posted 2013-11-09 21:09:56. <\/small><\/p>","protected":false},"excerpt":{"rendered":"

    1. Find all numbers for which the rational expression is undefined. If the rational expression is defined for all real numbers so state 5x over 3x-12 2. Find all numbers for which the rational expression is undefined. If the rational expression is defined for all real numbers so state. x+5 over x^2+x-42 1. 5x\/(3x-12) is […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-643","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/643","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/comments?post=643"}],"version-history":[{"count":0,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/643\/revisions"}],"wp:attachment":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/media?parent=643"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/categories?post=643"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/tags?post=643"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}