Mathematics, 16.12.2019 01:31 xj855042
Last year, the average math sat score for students at one school was 475. the headmaster introduced new teaching methods hoping to improve scores. this year, the mean math sat score for a sample of students was 481. if the teaching method had no effect, there would be roughly a 3 in 10 chance of seeing such an increase. does the result have practical significance? why or why not?
Answers: 2
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Jose predicted that he would sell 48 umbrellas. he actually sold 72 umbrellas. what are the values of a and b in the table below? round to the nearest tenth if necessary
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Solve for x and y: 217x + 131y = 913; 131x + 217y = 827
Answers: 1
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A50-foot ladder is leaning against a vertical wall. if the base of the ladder is 45 feet from the base of the wall, find the angle the bottling of the ladder makes with the ground.
Answers: 1
Last year, the average math sat score for students at one school was 475. the headmaster introduced...
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