Mathematics, 07.07.2019 01:50 batmandillon21
Rebecca's father is 2 times as old as rebecca. the sum of their ages is no less then 69. find an inequality that can be used to represent the situation. a) x+2x> 69 b) x+2x< 69 c) x+2x≤69 d) x+2x≥69
Answers: 1
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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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Suppose you are choosing a 6-digit personal access code. this code is made up of 4 digits chosen from 1 to 9, followed by 2 letters chosen from a to z. any of these digits or letters can be repeated. find the total number of personal access codes that can be formed. 492,804 341,172 39,917,124 4,435,236
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Rebecca's father is 2 times as old as rebecca. the sum of their ages is no less then 69. find an ine...
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