The instrument used to construct circles and arcs is the:
Fill in the blank(s) with the appropriate word(s).
compass
Mathematics
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Use the formula for the sum of the first n terms of a geometric sequence to solve.Find the sum of the first 13 terms of the geometric sequence: 5, -10, 20, -40, 80, . . . .
A. 13,649 B. 13,655 C. 13,653 D. 13,662
Mathematics
Factor the polynomial using the negative of the greatest common factor.-18x3y2 + 4x3y - 8x2y
A. -2x2y(9xy + 2x - 4) B. 2x2y(-9xy + 2x - 4) C. -2x2y(9xy - 2x + 4) D. -2xy(9x2y - 2x2 + 4x)
Mathematics
Solve the equation.15 + 3x - 11 = 10x - 16 - 5x
A. 6 B. -10 C. -6 D. 10
Mathematics
Solve the problem.What is the maximum r-value for the polar equation r = -3 + 5 sin ?? Note that a maximum 
e is a maximum value of 
, the maximum distance from the pole.
A. 2 B. 8 C. 5 D. 3
Mathematics