Use the properties of summation notation to find the sum.
A. 206
B. 162
C. 174
D. 154
Answer: C
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Find the first term, the common difference, and give a recursive formula for the arithmetic sequence.6th term is 25; 13th term is -38
A. a1 = 70, d = 9, an = an-1 + 9 B. a1 = 79, d = -9, an = an-1 - 9 C. a1 = 70, d = -9, an = an-1 - 9 D. a1 = 79, d = 9, an = an-1 + 9
Find the perimeter. Use 3.14 for ? when needed.
A. 140.76 yd B. 80.07 yd C. 53.38 yd D. 104.38 yd
Find a rectangular equation for the plane curve defined by the parametric equations.x = 3t, y = t + 3; -2 ? t ? 3
A. y = 
x + 3; for x in -6 ? x ? 9
B. y = x2 + 1; for x in -2 ? x ? 2
C. y = 
x - 3; for x in -? < x < ?
D. y = -3x + 3; for x in -? < x < ?
Solve the problem.A pest control company sprays insecticide around the perimeter of a 370 ft by 160 ft building. If the spray costs $0.13 per linear foot to be sprayed, how much did the job cost to the nearest dollar?
A. $641 B. $138 C. $69 D. $7696