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12. The first major military engagement of the American Revolution took place near A. Yorktown. B. Saratoga. C. Philadelphia. D. Boston.
answered
Feb 25, 2019
History
middle-school
4
votes
142k
views
What is the speed of a wave that has a frequency of 125 Hz and a wavelength of 1.25 meters?
answered
Oct 27, 2018
Physics
high-school
4
votes
112k
views
Last year there were 1435 8th graders enrolled in your school. This year there are 1220 what is the percent change in the number of 8th grade students?
answered
Oct 6, 2018
Mathematics
high-school
7
votes
25.4k
views
Assume that the mean length of a human pregnancy is 268 days with a standard deviation of 9 days. What percentage of human pregnancies do we expect to last no more than 272 days
answered
Oct 5, 2018
Mathematics
college
4
votes
126k
views
Which below describes an environmental change that could negatively affect organism survival? A, the lengths of beaks in a bird population decreases to the point birds open seeds to eat with ease B, a
answered
Oct 2, 2018
Biology
middle-school
3
votes
191k
views
Vf²=vi²+ 2ad A) solve for vi B) solve for d Using the same equation
answered
Oct 28, 2017
Mathematics
high-school
0
votes
31.9k
views
If an equation is balanced properly, both sides of the equation must have the same number of (1) atoms (2) coefficients (3) molecules (4) moles of molecules
answered
Feb 3, 2016
Chemistry
high-school
2
votes
219k
views
a commercial jet has been instructed to climb from its present altitude of 10,000 feet to a cruising altitude of 59,000 ft. if the plane ascends to a rate of 3,500ft./min how long will it take to reach
answered
Jul 15, 2015
Mathematics
high-school
2
votes
193k
views
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