What is the formula for the slope of a line segment whose endpoints are (x1,y1) and (x2,y2)?
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Mathematics, 06.11.2019 18:31 DESIRE44030
What is the formula for the slope of a line segment whose endpoints are (x1,y1) and (x2,y2)?
a. m=y1−y2x2−x1
b. m=y2−y1x2−x1
c. m=x2−x1y2−y1
d. m=y2−x2y1−x1
Answers: 3
Mathematics, 21.06.2019 17:20
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?
Answers: 2
Mathematics, 21.06.2019 22:00
White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.
Answers: 2
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