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A person’s theoretical maximum heart rate (in heartbeats per minute) is 220 - x where x is the person’s age in years (20 ≤ x ≤ 65). When a person exercises, it is recommended that the person strive for
answered
Jan 30, 2019
Mathematics
high-school
1
vote
66.7k
views
Solve for w . =+4w1159 Simplify your answer as much as possible.
answered
Sep 30, 2018
Mathematics
middle-school
5
votes
192k
views
In quiet she reposes
answered
Jun 24, 2018
English
high-school
4
votes
90.5k
views
lipid is one of the major classes of biomolecules needed by the body. The body breaks down the lipids that we consume to create blank and blank
answered
Apr 13, 2018
Biology
middle-school
3
votes
76.6k
views
A car is held motionless off the ground by a hovering helicopter. if the car's mass is 1500 kg, what is the force on the car due to gravity?
answered
Mar 5, 2018
Physics
middle-school
3
votes
19.6k
views
After the 1500s, what was a main difference between France and England? A) France banned the aristocracy, while English aristocrats were powerful. B) England placed fewer limits on the power of its kings
answered
Nov 8, 2017
History
high-school
3
votes
16.0k
views
Which of the following is equal to 5^6/5^2? 5x5x5 5x5x5x5
answered
Oct 27, 2017
Mathematics
middle-school
1
vote
169k
views
In ______ , contagious diseases had a profound impact on the Aborigines. a. Australia, b. New Zealand, c. Papua New Guinea.
answered
Jun 1, 2017
Health
high-school
4
votes
153k
views
In three to four sentences, describe why CEOs (the chief executive officers, that is, the leaders of large companies) make very high salaries, while their administrative assistants make much less.
answered
May 19, 2017
Computers and Technology
high-school
5
votes
221k
views
What is characteristic of both the threshing machine and cotton gin? They increased manufacturing in England. They are the result of the Crusades. Both were invented in the United States.
answered
Oct 16, 2016
History
high-school
2
votes
207k
views
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