Mathematics, 27.08.2020 20:01 whitakers87
10,000 students took a math test. If their average score was 40 with a standard deviation of 10, how many students must have scored between 20 and 40 marks? A. 3,772 B. 2,227 C. 5,000 D. 3,334 E. 4,772
Answers: 2
Mathematics, 21.06.2019 15:00
Flashback to semester a. are triangles pqr and stu congruent? what is the congruency that proves they are congruent? what is the perimeter of triangle pqr? show your work.
Answers: 2
Mathematics, 21.06.2019 21:00
Factor the trinomial below. 12x^2 - 32x - 12 a. 4(3x+3)(x-1) b. 4(3x+1)(x-3) c. 4(3x+6)(x-2) d. 4(3x+2)(x-6)
Answers: 2
Mathematics, 21.06.2019 22:00
Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.
Answers: 1
Mathematics, 21.06.2019 22:00
Rewrite so the subject can be y in the formula d=m-y/y+n
Answers: 1
10,000 students took a math test. If their average score was 40 with a standard deviation of 10, how...
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