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All test prep courses offer worksheets, study guides, and practice tests. SAT and ACT courses also offer diagnostic tests as well as two full-length tests. Other services provided by Brightstorm include Math Genie and College Counseling. [citation needed] Math Genie provides step-by-step solutions to math problems uploaded by users. Genie ...
The competition consists of 15 questions of increasing difficulty, where each answer is an integer between 0 and 999 inclusive. Thus the competition effectively removes the element of chance afforded by a multiple-choice test while preserving the ease of automated grading; answers are entered onto an OMR sheet, similar to the way grid-in math questions are answered on the SAT.
HegartyMaths was created by co-founders and teachers Colin Hegarty and Brian Arnold. In 2011 they started to make maths videos on YouTube to support their own classes with maths homework and revision. Since the videos were freely available on YouTube, students from all over the country and the world started using the videos too.
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The question is whether or not, for all problems for which an algorithm can verify a given solution quickly (that is, in polynomial time), an algorithm can also find that solution quickly. Since the former describes the class of problems termed NP, while the latter describes P, the question is equivalent to asking whether all problems in NP are ...
Some students studying math may develop an apprehension or fear about their performance in the subject. This is known as math anxiety or math phobia, and is considered the most prominent of the disorders impacting academic performance. Math anxiety can develop due to various factors such as parental and teacher attitudes, social stereotypes ...
The answer to the first question is 2 / 3 , as is shown correctly by the "simple" solutions. But the answer to the second question is now different: the conditional probability the car is behind door 1 or door 2 given the host has opened door 3 (the door on the right) is 1 / 2 .