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The angles of a linear pair are ?? A. always congruent B. always complementary C. always supplementary D. vertical angles
answered
Aug 9, 2018
Mathematics
high-school
7
votes
214k
views
Read this sentence: In some cases, certain species are so important that underpasses or underground tunnels are built. What synonym could replace important? A) Endangered B) Few C) Precious D) Weak
answered
Jul 12, 2018
English
middle-school
1
vote
57.3k
views
Determine the difference in the speed of sound in hydrogen at 0 degrees Celsius and in air at 30 degrees Celsius. Also indicate if is it faster or slower
answered
Jun 13, 2018
Physics
high-school
5
votes
173k
views
Enter an inequality that represents the description, and then solve. Dave has $10 to spend on a $7 book and two birthday cards (c) for his friends. How much can he spend on each card if he buys the same
answered
Jun 13, 2018
Mathematics
middle-school
6
votes
220k
views
THe endocrine and exocrine glands secrete____ in vertebrates. A. digestive juices. B. hormones. C. saliva. D. excretory waste
answered
Aug 11, 2017
Biology
high-school
4
votes
53.1k
views
Describe the environment problem and write your recommendations about how to help save the planet
answered
Mar 3, 2016
English
high-school
2
votes
89.0k
views
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