Find the sum of the first 8 terms of the geometric sequence 5, -20, 80, ...
Fill in the blank(s) with the appropriate word(s).
–255
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Find a formula for the nth partial sum of the series and use it to find the series' sum if the series converges.
+ 
+ 
+ ... + 
+ ...
A. 
; 
B. 
; 
C. 
; 
D. 
; 
Use properties for rational number operations to solve the equation.-4 + 4x = 8
A. 1
B. 
C. - 3
D. 3
Determine what m and b represent.The value, in dollars, of a particular computer is given by 
where x is the number of years the computer has been in existence.
A. -699.33 signifies the number of computers owned, and 2923 signifies the cost of electricity. B. -699.33 signifies the hourly cost of repairs, and 2923 signifies the cost of software. C. -699.33 signifies the amount of depreciation per year, and 2923 signifies the initial cost. D. 2923 signifies the amount of depreciation per year, and -699.33 signifies the initial cost.
Find the exact value by using a difference identity.tan 285°
A. 
B. -2 - 
C. 
D. 2 + 