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Mathematics, 28.05.2021 16:10 lisa5250
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2021 Spring Final Exam
Which expression is equivalent to 12 + 142 + 49?
O (2+7)
O (1+6) (2-6)
O (2 – 7) (2+7)
O (2-6)
Answers: 2
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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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Isaac wants the equation below to have no solution when the missing number is placed in the box. which number should he place in the box?
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Examine this system of equations. what integer should the second equation be multiplied by so that when the two equations are added together, the x term is eliminated? 3/4x+1/7y=6 1/8x-3/5y=16
Answers: 3
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Which of the following multiplication expressions can be modeled by the tiles shown? check all that apply. 8(3) = 24 6(4) = 24 (3)(12) = 36 24(3) = 72 3(8) = 24 2(12) = 24
Answers: 2
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