Use similar triangles to calculate the height, h cm, of triangle ABE. 10 cm
C
+
36 cm
-X Х
E
20 cm
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Suppose a pendulum is l meters long. the time,t,in seconds that it tales to swing back and forth once is given by t=2.01

Solve 3x-18=2y and 5x-6y=6 by elimination show work

Suppose that in 2008 , 840,800 citizens died of a certain disease assuming the population of teh country is 399 miliion, what is the mortality rate in units of deaths per 100,000 people?