Find a formula for the nth partial sum of the series and use it to find the series' sum if the series converges.8 - 
+ 
- 
+ ... + (-1)n-1 
+ ...
A. 
; 
B. 
; 
C. 
; 9
D. 
; 9
Answer: B
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Determine by what factor the numbers differ. In other words, determine how many times larger the first number is than the second.1 trillion, 1 hundred
A. 106 B. 1010 C. 1014 D. 1012 - 102
Solve the problem.The revenue achieved by selling x graphing calculators is figured to be 
The cost of each calculator is 
How many graphing calculators must be sold to make a profit (revenue - cost) of at least $466.20?
A. {x?37 < x < 63} B. {x?12 < x < 38} C. {x?39 < x < 61} D. {x?38 < x < 36}
In a steam engine the pressure and volume of steam satisfy the equation src="https://sciemce.com/media/4/d2c401ab8f0a4e79v.png" class="w-image" /> is 
, where k is a constant. (This is true for adiabatic expansion, that is, expansion in which there is no heat transfer between the cylinder and its surroundings.) Calculate the work done by the engine (in ft-lb) during a cycle when the steam starts at a pressure of 160 
and a volume of and expands to a volume of 1000 
. Use the fact that the work done by the gas when the volume expands from 
to volume 
.
What will be an ideal response?
Multiply.
A. 0.45 B. 0.000045 C. 0.0045 D. 0.045