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A radioactive substance decays according to the formula A=A0e^kt where A0 is the initial amount of substance (in grams) A is the amount of substance(in grams) after t years k is a constant The half-life
answered
Dec 27, 2018
Mathematics
high-school
3
votes
123k
views
Ingrid kicks a football with an initial velocity of 12 m/s at an angle of 45 degrees relative to the ground. What is the horizontal component of the initial velocity?
answered
Dec 23, 2018
Physics
high-school
2
votes
145k
views
Find the critical value zα/2 that corresponds to a 98% confidence level.
answered
Nov 29, 2018
Mathematics
high-school
5
votes
69.5k
views
• Gospels • Acts of the Apostles • Epistles • Revelation What best describes the above list? the Christian New Testament the Christian Bible the Christian Old Testament the Christian Torah
answered
Jun 8, 2018
History
middle-school
5
votes
166k
views
QUESTION 2 The Federal Application for Student Aid (FAFSA) form: A-must be completed by your guidance counselor B-can only be filled out by U.S. citizens C-is used to apply for private loans D- be submitted
answered
May 27, 2018
Business
high-school
4
votes
140k
views
A person who is six feet tall casts a 3-foot-long shadow. A nearby pine tree casts a 15-foot-long shadow.What is the height hh of the pine tree?
answered
May 26, 2018
Mathematics
high-school
1
vote
136k
views
Is -9 – -83 positive or negative?
answered
Apr 21, 2018
Mathematics
middle-school
5
votes
37.9k
views
Which of the following is NOT a necessary step to effectively prioritize goals? A. determining a set of tasks for each goal B. deciding which goals are most important C. outlining goals D. organizing goals
answered
Dec 5, 2017
Health
middle-school
4
votes
116k
views
Archaeologists Louis and Mary Leakeysome found some of the oldest human remains in __________ during the 1950s. a. South Africa b. Bolgatanga c. the Kalahari Desert d. Olduvai Gorge
answered
Oct 5, 2017
Social Studies
high-school
2
votes
176k
views
How can a manager also be a leader
answered
Jul 30, 2017
Business
college
3
votes
130k
views
Alligators lay between 20 and 50 eggs in a nest. A park ranger in Everglades national park counted the number of eggs in 28 nests. On average, there were 40 eggs in each nest. About how many eggs did he
answered
Jul 10, 2017
Mathematics
middle-school
6
votes
58.8k
views
Aldehydes are the product of oxidation of:
answered
Apr 19, 2017
Chemistry
high-school
5
votes
127k
views
Does a scalene always have to have unequal sides?
answered
May 29, 2015
Mathematics
middle-school
4
votes
107k
views
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