Mathematics, 15.07.2019 08:50 mustachegirl311

How do you solve these i’ve tried youtube videos but i can’t figure it out

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Mathematics, 21.06.2019 14:10, uhhgray

Students are given 3 minutes for each multiple-choice question and 5 minutes for each free-response question on a test. there are 15 questions on the test, and students are given 51 minutes to take it. how many multiple-choice questions are on the test?

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Mathematics, 21.06.2019 17:20, organicmemez

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?

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Mathematics, 21.06.2019 19:30, kelseybell2707

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

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Mathematics, 21.06.2019 21:30, hannahkharel2

Two friends are reading books. jimmy reads a book with 21,356 words. his friend bob reads a book with one-and-a-half times as many words. which expression represents the number of words bob reads?

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How do you solve these i’ve tried youtube videos but i can’t figure it out...