Mathematics, 18.07.2019 01:30, Dbranden1038
Asource of laser light sends rays ab and ac toward two opposite walls of a hall. the light rays strike the walls at points b and c, as shown below: a source of laser light is at point a on the ground between two parallel walls. the walls are perpendicular to the ground. ab is a ray of light which strikes the wall on the left at point b which is 60 meters above the ground. ac is a ray of light which strikes the wall on the right at point c which is 40 m above the ground. the ray ab makes an angle of 60 degrees with the ground. the ray ac makes an angle of 30 degrees with the ground. what is the distance between the walls? 110.90 m 149.28 m 103.92 m 173.20 m
Answers: 1
Mathematics, 22.06.2019 00:00, maddiemccarter3892
Which of the following would be a correct step in proving that triangle abc is congruent to triangle cda? a. use a protractor to measure the angles and show that all the corresponding angles are equal in measure. this will allow you to prove congruence by aaa. b. show that segment ab is parallel to segment cd and segment ad is parallel to segment cb. this will allow you to prove congruency by asa. c. show that is segment ab is perpendicular to segment ad. this will allow you to prove congruence by sas. d. none of the above.
Answers: 2
Mathematics, 22.06.2019 06:00, Eska12
Sound travels about 750 miles per hour. a) suppose it takes about 1.5 seconds to hear the echo. how far away is the canyon wall, in feet? for this i got 825 ft b) suppose you stand 1,925 feet from the canyon wall and sound the horn. how long will it take to hear the echo? (i'm stuck on this)
Answers: 1
Mathematics, 22.06.2019 06:00, krystalhurst97
3. mr. sanchez’s class sold fruit pies for $1.65 each and mr. kelly’s class sold bottles of fruit juice for $1.36 each. together, the classes sold 79 items and earned $118.17 for their school. (a) write and solve a system of equations that model the problem. show all your work. (b) which class earned more money? (c) how much more money did that class earn?
Answers: 1
Asource of laser light sends rays ab and ac toward two opposite walls of a hall. the light rays stri...
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