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Answers by Guidhouse

Answers by Guidhouse
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You stand by the railroad tracks as a train passes by. you hear a 1 000-hz frequency when the train approaches, which changes to 800 hz as it goes away. how fast is the train moving? the speed of sound
answered Jun 28, 2018
4 votes
31.1k views
The population of Rock Springs is growing at a constant rate. The expression represents the increase in population in x years. 45,200 + 1,900x What is the initial population of Rock Springs? A) 0 B) 1,
answered Jun 18, 2018
4 votes
190k views
Why did many wealthy englishmen favor the development of colonies in America
answered Jun 2, 2018
5 votes
89.7k views
The addition of which of the following sentences would create an effective paragraph? Planning a party can be an easy task. First, the host should create a guest list. Second, decorations for the venue
answered Mar 10, 2018
2 votes
157k views
Where is the mass of a black hole located
answered Dec 28, 2017
3 votes
150k views
Give charity to the needy. · Make a pilgrimage. · Fasting during the holy month. · Pray five times each day. **These are four of the most important requirements of what religion?** A) Islam B) Shinto C)
answered Jan 19, 2017
4 votes
232k views
A building 78 ft high casts a 195-ft shadow. Sarah casts a 10-ft shadow. The triangle formed by the building and its shadow is similar to the triangle formed by Sarah and her shadow. How tall is Sarah?
answered Jan 15, 2017
5 votes
32.4k views
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