Use the formula for the sum of the first n terms of a geometric sequence to solve.Find the sum of the first four terms of the geometric sequence: 2, 10, 50, . . . .
A. 156
B. 19
C. 312
D. 62
Answer: C
Mathematics
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Find a polar equation for the conic. A focus is at the pole.e = 1; directrix is parallel to the polar axis 4 above the pole
A. r = 
B. r = 
C. r = 
D. r = 
Mathematics
Provide an appropriate response.What base is being used in a 3-digit numeral having place values as depicted in the table.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Find the value(s) of the variable for which the rational expression is undefined.
A. 36
B. 6
C. 6, -6
D. 
Mathematics
Identify the set as finite or infinite.{2, 4, 6, 8, ...}
A. Infinite B. Finite
Mathematics