Express the sum in sigma notation.1 - 3 + 9 - 27 + 81
A. 
3k
B. 
3k + 1
C. 
D. 
3k
Answer: A
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Solve the problem.The velocity of a body of mass m falling from rest under the action of gravity is given by the equation 
where k is a constant that depends on the body's aerodynamic properties and the density of the air, g is the gravitational constant, and t is the number of seconds into the fall. Find the limiting velocity, limt?? v, of a 460 lb. skydiver (mg = 460) when k = 0.006.
A. 276.89 ft/sec B. There is no limiting speed. C. 0.00 ft/sec D. 87.56 ft/sec
Convert the numeral to the requested form.Some systems of enumeration are multiplicative. If you want to represent 30 things, you write the symbol for 3 followed by the symbol for 10. In China and Japan the symbol for src="https://sciemce.com/media/4/ppg__10708191924__f1q345g5.jpg" alt="" style="vertical-align: -4.0px;" /> and the Chinese write 
and the symbol for 
Thus, 30 is symbolized 
If the symbol for 
and the symbol for 
how do the Chinese write 38?
A. 
B. 
C. 
D. 
Find the intersection of the given intervals.(-9, 0) ? [-3, 10]
A. [-3, 0) B. (-9, 10] C. (0, 10] D. (-9, -3]
Solve.It is recommended that there be at least 11 square feet of work space for every person in a conference room. A certain conference room is 20 feet by 15 feet. Find the maximum number of people the room can accommodate.
A. 37 people B. 27 people C. 28 people D. 47 people