Mathematics, 22.08.2019 18:10 azaz1819
The angle of elevation of the top of a tower is 45 from a point 10m above water level of a lake. the angle of depression of its image in the lake is 60. find the height of the tower above water level.
Answers: 2
Mathematics, 21.06.2019 18:20
17. a researcher measures three variables, x, y, and z for each individual in a sample of n = 20. the pearson correlations for this sample are rxy = 0.6, rxz = 0.4, and ryz = 0.7. a. find the partial correlation between x and y, holding z constant. b. find the partial correlation between x and z, holding y constant. (hint: simply switch the labels for the variables y and z to correspond with the labels in the equation.) gravetter, frederick j. statistics for the behavioral sciences (p. 526). cengage learning. kindle edition.
Answers: 2
Mathematics, 21.06.2019 18:30
Astick 2 m long is placed vertically at point b. the top of the stick is in line with the top of a tree as seen from point a, which is 3 m from the stick and 30 m from the tree. how tall is the tree?
Answers: 2
Mathematics, 21.06.2019 19:30
Aline passes through 3,7 and 6,9 what equation represents the line
Answers: 2
The angle of elevation of the top of a tower is 45 from a point 10m above water level of a lake. the...
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